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H-LIN
Microwave Journal Content on 'H-Lin' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been IMPACT OF 5G ON ELECTRONIC WARFARE OPERATIONS Technical Education Webinar Series Title: Impact of 5G on Electronic Warfare Operations Date: March 31, 2021 Time: 8am PT / 11am ET Sponsored by: Rohde & Schwarz and IQ Analog Presented by: Dave Adamy Abstract: Since 5G will provide improved data rate with reduced latency, it will enhance many military functions, particularly remote testing and control applications. COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other. LINE-OF-SIGHT VERIFICATION KIT FOR MICROWAVE FIELDINTERNET MICROWAVE LINK EQUIPMENTMICROWAVE DATA LINKMICROWAVE INTERNET LINKMICROWAVE LINE OF SIGHT CALCULATORMICROWAVE TELECOMMICROWAVE WIRELESS A new line-of-sight (LoS) kit consisting of the Spectrum Compact handheld microwave spectrum analyzer, an SG Compact signal generator and two portable beacon antennas is claimed to be the first dedicated microwave link LoS verification kit. It is designed to make sure there are no obstacles or interference disrupting the microwave hop. The main purpose of the kit is to make long distance link5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to VERY LOW-COST RF TEST EQUIPMENT FOR THE DIY ENGINEER OR Over the last few years, advances in semiconductor technology and RF design have enabled a plethora of high frequency test equipment that is affordable for the everyday engineer, hobbyist or student to purchase for personal use and/or learning. There is now a VNA available for close to $50 and signal generators, spectrum analyzers and oscilloscopes for a few hundred dollars. UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been IMPACT OF 5G ON ELECTRONIC WARFARE OPERATIONS Technical Education Webinar Series Title: Impact of 5G on Electronic Warfare Operations Date: March 31, 2021 Time: 8am PT / 11am ET Sponsored by: Rohde & Schwarz and IQ Analog Presented by: Dave Adamy Abstract: Since 5G will provide improved data rate with reduced latency, it will enhance many military functions, particularly remote testing and control applications. COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other. LINE-OF-SIGHT VERIFICATION KIT FOR MICROWAVE FIELDINTERNET MICROWAVE LINK EQUIPMENTMICROWAVE DATA LINKMICROWAVE INTERNET LINKMICROWAVE LINE OF SIGHT CALCULATORMICROWAVE TELECOMMICROWAVE WIRELESS A new line-of-sight (LoS) kit consisting of the Spectrum Compact handheld microwave spectrum analyzer, an SG Compact signal generator and two portable beacon antennas is claimed to be the first dedicated microwave link LoS verification kit. It is designed to make sure there are no obstacles or interference disrupting the microwave hop. The main purpose of the kit is to make long distance link5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to VERY LOW-COST RF TEST EQUIPMENT FOR THE DIY ENGINEER OR Over the last few years, advances in semiconductor technology and RF design have enabled a plethora of high frequency test equipment that is affordable for the everyday engineer, hobbyist or student to purchase for personal use and/or learning. There is now a VNA available for close to $50 and signal generators, spectrum analyzers and oscilloscopes for a few hundred dollars. UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to STOREFRONT - MICROWAVEJOURNAL.COM Microwave Journal Content on 'storefront' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 TRX HALF-DUPLEX BEAMFORMER FOR MMWAVE 5G FROM RENESAS TRX Half-duplex Beamformer for mmWave 5G from Renesas. RFMW announced design and sales support for a beamforming IC from Renesas. The F5288 is an eight-channel TRX half-duplex silicon beamformer IC designed using a SiGe BiCMOS process for 28 GHz dual polarization 5G phased array applications. The core IC has very flexible gain and phasecontrol
JUNKOSHA LAUNCHES METROLOGY GRADE MICROWAVE/MMWAVE VNA 1 day ago · Junkosha has chosen the first face-to-face International Microwave Symposium (IMS) in two years to launch its new metrology grade microwave/mmWave vector network analyzer VNA Test Cable Assembly.To be showcased alongside the company’s unrivaled service options including the quickest lead times, ‘try before you buy’ and a cable health check programme, Junkosha will use this event toH-LIN
Microwave Journal Content on 'H-Lin' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037FDD MASSIVE MIMO
Microwave Journal Content on 'FDD Massive MIMO' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers to compare different printed-circuit-board (PCB) materials, typically by referring to a fixed value for a givenBROADBAND RESISTORS
Microwave Journal Content on 'broadband resistors' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 BROADBAND CAPACITORS 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037. For magazine subscriptions and newsletter customer service: Tel: 978-671-0449 Email: mwj@e-circ.net MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to THE MAXIMALLY EFFICIENT AMPLIFIER The energy efficiency of an RF front-end (RFFE) is a vital characteristic, whether a radio is battery or mains powered. For battery powered, reducing the maximum current drawn from the battery increases the time between charges. For mains powered, important properties such as size, weight and power are dictated by the RFFEefficiency.
COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other.5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to MICROWAVE CABLE FAMILY PROVIDES PHASE STABILITY OVER The challenge of phase stability in coaxial cable assemblies is a recurring topic, which an increasing number of equipment manufacturers are encountering when designing or verifying their systems. Any application where temperature plays a role is subject to phase changes. For example, temperature fluctuations influence the signal transmission in differential pairs, which are used to QUALCOMM ANNOUNCES BREAKTHROUGH QUALCOMM ULTRASAW RF Qualcomm Technologies, Inc. announced the Qualcomm® ultraSAW filter technology, another groundbreaking innovation in the company’s industry-leading wireless technology portfolio that builds on the company’s legacy of developing breakthrough technologies and enabling new experiences and expanding the mobile ecosystem. Radio frequency (RF) filters isolate radio signals from the MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to THE MAXIMALLY EFFICIENT AMPLIFIER The energy efficiency of an RF front-end (RFFE) is a vital characteristic, whether a radio is battery or mains powered. For battery powered, reducing the maximum current drawn from the battery increases the time between charges. For mains powered, important properties such as size, weight and power are dictated by the RFFEefficiency.
COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other.5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to MICROWAVE CABLE FAMILY PROVIDES PHASE STABILITY OVER The challenge of phase stability in coaxial cable assemblies is a recurring topic, which an increasing number of equipment manufacturers are encountering when designing or verifying their systems. Any application where temperature plays a role is subject to phase changes. For example, temperature fluctuations influence the signal transmission in differential pairs, which are used to QUALCOMM ANNOUNCES BREAKTHROUGH QUALCOMM ULTRASAW RF Qualcomm Technologies, Inc. announced the Qualcomm® ultraSAW filter technology, another groundbreaking innovation in the company’s industry-leading wireless technology portfolio that builds on the company’s legacy of developing breakthrough technologies and enabling new experiences and expanding the mobile ecosystem. Radio frequency (RF) filters isolate radio signals from theMICROWAVE JOURNAL
685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037. For magazine subscriptions and newsletter customer service: Tel: 978-671-0449 Email: mwj@e-circ.net JUNKOSHA LAUNCHES METROLOGY GRADE MICROWAVE/MMWAVE VNA 1 day ago · Junkosha has chosen the first face-to-face International Microwave Symposium (IMS) in two years to launch its new metrology grade microwave/mmWave vector network analyzer VNA Test Cable Assembly.To be showcased alongside the company’s unrivaled service options including the quickest lead times, ‘try before you buy’ and a cable health check programme, Junkosha will use this event toFDD MASSIVE MIMO
Microwave Journal Content on 'FDD Massive MIMO' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 WEBINARS - MICROWAVE JOURNAL 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037. For magazine subscriptions and newsletter customer service: Tel: 978-671-0449 Email: mwj@e-circ.net BROADBAND CAPACITORS Microwave Journal Content on 'Broadband Capacitors' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to ON THE DIRECT CONVERSION RECEIVER -- A TUTORIAL The use of a superheterodyne technique entails several trade-offs. Image rejection is a prevailing concern in this architecture. During the first down-conversion to IF, any unwanted activity at a frequency spaced at f IF offset from the LO frequency (f LO) on the opposite side of f LO from the desired RF channel, will produce a mixing product falling right into the down-converted channel at f IF. THE EVOLUTION OF CELLULAR TECHNOLOGY: THE LONG ROAD TO 5G Figure 1 Early Qualcomm brochure showing the company founders and employees. This is the story of Qualcomm, a company that started in sunny San Diego in the summer of 1985, and its impact on the evolution of cellular technology. Qualcomm’s success reflects its pioneering role inventing technologies with the potential to radically shape our lives, then successfully bringing them to life.SMARTTHINGS
NXP Semiconductors announced that its Trimension ultra-wideband platform now offers fine ranging for new tagging use cases, UWB and Bluetooth® Low Energy solutions have been combined to deliver spatial awareness to the new Samsung Galaxy SmartTag+. HISTORY OF WIRELESS COMMUNICATIONS The history of Wireless Communications started with the understanding or magnetic and electric properties observed during the early days by the Chinese, Greek and Roman cultures and experiments carried out in the 17th and 18th centuries. Here are some selected events in the development of Wireless Communications (material taken from the book History of Wireless, Tapan MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to THE MAXIMALLY EFFICIENT AMPLIFIER The energy efficiency of an RF front-end (RFFE) is a vital characteristic, whether a radio is battery or mains powered. For battery powered, reducing the maximum current drawn from the battery increases the time between charges. For mains powered, important properties such as size, weight and power are dictated by the RFFEefficiency.
COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other.5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to MICROWAVE CABLE FAMILY PROVIDES PHASE STABILITY OVER The challenge of phase stability in coaxial cable assemblies is a recurring topic, which an increasing number of equipment manufacturers are encountering when designing or verifying their systems. Any application where temperature plays a role is subject to phase changes. For example, temperature fluctuations influence the signal transmission in differential pairs, which are used to QUALCOMM ANNOUNCES BREAKTHROUGH QUALCOMM ULTRASAW RF Qualcomm Technologies, Inc. announced the Qualcomm® ultraSAW filter technology, another groundbreaking innovation in the company’s industry-leading wireless technology portfolio that builds on the company’s legacy of developing breakthrough technologies and enabling new experiences and expanding the mobile ecosystem. Radio frequency (RF) filters isolate radio signals from the MICROWAVE JOURNALNEWSCHANNELSEVENTSBUYERS GUIDEMULTIMEDIAMAGAZINE Microwave Journal has been the leading source for information about RF and Microwave technology, design techniques, news, events and educational information for more than 50 years. Microwave Journal reaches 50,000 qualified readers monthly with the print magazine that has a global reach. In 2012, Microwave Journal China started as a 6X publication with more than 10,000 readers. 5G MMWAVE AND MASSIVE MIMO MARKET 5G will deliver more data to more devices with lower latency and higher consistency than previous-generation technologies. A large number of subscribers are anticipated to adopt the 5G network. To accommodate these users, there is a need for a larger bandwidth. Limited bandwidth is available in the mobile frequency spectrum (i.e., below mmWave band); hence, the mmWave band has been A DIVE INTO INTEGRATED PA TOPOLOGIES FOR 5G MMIMO Abstract The race towards hitting 5G speed, capacity, and availability requirements has come with it a number of nascent foundational technologies. At the forefront of these innovations is massive Multiple-Input Multiple-Output (mMIMO), or the outfitting of a base station with hundreds to thousands of antenna elements, each with its own respective transmit/receive signal chain, to THE MAXIMALLY EFFICIENT AMPLIFIER The energy efficiency of an RF front-end (RFFE) is a vital characteristic, whether a radio is battery or mains powered. For battery powered, reducing the maximum current drawn from the battery increases the time between charges. For mains powered, important properties such as size, weight and power are dictated by the RFFEefficiency.
COGNITIVE COUNTERMEASURES DETERMINE MISSION SUCCESS As electromagnetic spectrum operations dominate the modern electronic warfare (EW) environment, countermeasure approaches increasingly leverage software and machine learning to win. The global fight for EW dominance often plays out in smaller incidents. If one fighter jet faces off against a rival, they may do small maneuvers to see which can outperform the other.5G NEW RADIO
Read our 5G NR eBook and discover all relevant details of the new technology. Exlore key implementation aspects and learn which test and measurement equipment is required to develop, manufacture and service5G NR products.
UNDERSTANDING THE TRUE MEANING OF DIELECTRIC CONSTANT Understanding the true meaning of dielectric constant. Dielectric constant (Dk or relative permittivity) is a parameter that design engineers use constantly, often without fully understanding it. Every material has a dielectric constant, even air (slightly more than unity). And the parameter is commonly used by circuit designers tocompare
FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to MICROWAVE CABLE FAMILY PROVIDES PHASE STABILITY OVER The challenge of phase stability in coaxial cable assemblies is a recurring topic, which an increasing number of equipment manufacturers are encountering when designing or verifying their systems. Any application where temperature plays a role is subject to phase changes. For example, temperature fluctuations influence the signal transmission in differential pairs, which are used to QUALCOMM ANNOUNCES BREAKTHROUGH QUALCOMM ULTRASAW RF Qualcomm Technologies, Inc. announced the Qualcomm® ultraSAW filter technology, another groundbreaking innovation in the company’s industry-leading wireless technology portfolio that builds on the company’s legacy of developing breakthrough technologies and enabling new experiences and expanding the mobile ecosystem. Radio frequency (RF) filters isolate radio signals from theMICROWAVE JOURNAL
685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037. For magazine subscriptions and newsletter customer service: Tel: 978-671-0449 Email: mwj@e-circ.net JUNKOSHA LAUNCHES METROLOGY GRADE MICROWAVE/MMWAVE VNA 20 hours ago · Junkosha has chosen the first face-to-face International Microwave Symposium (IMS) in two years to launch its new metrology grade microwave/mmWave vector network analyzer VNA Test Cable Assembly.To be showcased alongside the company’s unrivaled service options including the quickest lead times, ‘try before you buy’ and a cable health check programme, Junkosha will use thisFDD MASSIVE MIMO
Microwave Journal Content on 'FDD Massive MIMO' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 WEBINARS - MICROWAVE JOURNAL 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037. For magazine subscriptions and newsletter customer service: Tel: 978-671-0449 Email: mwj@e-circ.net BROADBAND CAPACITORS Microwave Journal Content on 'Broadband Capacitors' 685 Canton St. Norwood, MA 02062 USA Tel: (781) 769-9750 Fax: (781) 769-5037 FR-4 VERSUS HIGH FREQUENCY LAMINATES FR-4 typically has a Dk of about 4.5. That’s higher than most PTFE high frequency materials, but lower than a number of high frequency laminates which offer Dk values of 6.15 and even as high as 11.0. Using materials with these higher values can shave 25% or more off the size of a circuit built on FR-4. There are several other factors to ON THE DIRECT CONVERSION RECEIVER -- A TUTORIAL The use of a superheterodyne technique entails several trade-offs. Image rejection is a prevailing concern in this architecture. During the first down-conversion to IF, any unwanted activity at a frequency spaced at f IF offset from the LO frequency (f LO) on the opposite side of f LO from the desired RF channel, will produce a mixing product falling right into the down-converted channel at f IF. THE EVOLUTION OF CELLULAR TECHNOLOGY: THE LONG ROAD TO 5G Figure 1 Early Qualcomm brochure showing the company founders and employees. This is the story of Qualcomm, a company that started in sunny San Diego in the summer of 1985, and its impact on the evolution of cellular technology. Qualcomm’s success reflects its pioneering role inventing technologies with the potential to radically shape our lives, then successfully bringing them to life.SMARTTHINGS
NXP Semiconductors announced that its Trimension ultra-wideband platform now offers fine ranging for new tagging use cases, UWB and Bluetooth® Low Energy solutions have been combined to deliver spatial awareness to the new Samsung Galaxy SmartTag+. HISTORY OF WIRELESS COMMUNICATIONS The history of Wireless Communications started with the understanding or magnetic and electric properties observed during the early days by the Chinese, Greek and Roman cultures and experiments carried out in the 17th and 18th centuries. Here are some selected events in the development of Wireless Communications (material taken from the book History of Wireless, Tapan×
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