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Design of a Broadband L-band 160W GaN Power Amplifier Using SMT Packaged Transistors 

by  Plextek RFI & Qorvo The design of a broadband power amplifier for L-band radar and wideband communications applications is described. Using a state-of-the-art Qorvo transistor in a cost-effective SMT plastic package, the amplifier has 160W output power between 1.2GHz and 1.8GHz and a typical efficiency of 55% for the complete connectorized PA. Particular consideration […]

Understanding The Limitations Of Modern Military Radio Testbeds

by JFW Industries, Inc. In the past 10 years, the use of military radios has increased dramatically, and, in turn, so has the need to test those radios. In part, this increase stems from the advent of such military-based communication applications as the land mobile radio system and tactical networks, as well as the introduction […]

COFDM GaN PAs Provide a Platform for Next-Generation UAV Data Links

by Pasternack Breakthroughs in wireless communications and complex controls systems have allowed for the application of remotely and autonomously controlled vehicles. In a recent MarketsandMarkets report, the unmanned aerial vehicle (UAV) market was estimated to be $13.22 Billion in 2016 and is projected to reach $28.27 Billion by 2022. The increase in the civilian application […]

Reach New Levels of Linearity in Passive Mixers with GaN Technology

by Charles Trantanella, Chief Scientist  – Custom MMIC When microwave engineers hear the words “Gallium Nitride” (GaN), one thought usually comes to their minds: power amplifiers. Due to its physical properties of high-breakdown voltage and high-thermal conductivity, GaN is ideally suited over its Gallium Arsenide (GaAs) counterpart for the development of highly efficient, highly effective […]

Challenges for Electronic Circuits in Space Applications: Part Two

by Chris Leonard, Analog Devices, Inc. Part 1 of this article examined the challenges engineers encounter in implementing circuits for space level applications. Challenges related to the reliability, radiation effects and the ability of electronic devices to tolerate harsh environmental conditions encountered in a constantly changing environment of outer space. We also surveyed the space […]

BUC and SSPA SWaP Considerations for Communications on the Move

by Daniel Lopez, Product Manager, Norsat International Size, Weight, and Power (SWaP) are the three most critical physical attributes which Block Upconverter (BUC) and Solid State Power Amplifier (SSPA) designs must address in Satellite Communications on the Move (COTM) systems. Minimizing size and weight while maximizing power are competing aims, and optimizing this balance is […]

Overview of RF Filters and Their Respective Applications

by Mark Blackwood, Fairview Microwave RF filters are a key component in practically any signal chain, and these devices essentially consist of an electrical network that discriminates the amplitude and phase characteristics of a signal with respect to a certain frequency range. Depending on the application, it could be necessary to filter out noise and […]

Challenges for Electronic Circuits in Space Applications: Part 1

by Chris Leonard, Analog Devices, Inc. This article provides insight into the challenges engineers encounter in implementing circuits for space level applications. Concerns about reliability, radiation effects and the ability to tolerate harsh environmental conditions require special attention during the design process to ensure mission success. The global space market is approximately $330 billion. We’ll […]

Microwave Circulators Evolve to Meet True Surface Mount Requirements of Advanced Systems

by Smiths Interconnect If it’s solving design challenges of directivity and throughput in 5G communications applications or providing enhanced anti-jamming and tracking agility, phased array antennas, or actively electronically steered arrays (AESAs), are essential to meeting the application demands of these emerging technologies. Phased array antennas and AESAs are now deployed in ground-based, aerospace, and […]