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RF & Microwave Components for SatCom Applications
Whether prompted by the convenience of small size, the fuel savings from lighter weight or the smaller wavelengths of higher frequencies, size is on an inexorable decline. Moore’s Law is the archetype defining the shrinking of semiconductor technology, yet it would not be possible without other components following the same trend, particularly the passive devices that filter and route the signals processed by the ICs. This eBook compiled by Knowles explores some of the market and technology trends driving the demand for higher frequencies and smaller size. Beginning with an overview of the classic Wilkinson power divider and combiner designs, it also covers various other SATCOM related component technologies ranging from PCBs to high speed converters to phased arrays plus test challenges in this area.
This eBook addresses many design issues with PCBs for high power GaN devices, higher frequency mmWave circuits, thermal expansion effects, heat sinking, extending operating temperatures, reducing circuit size, copper surface roughness effects, interface materials and connector launch methods. The first two articles deal with high power GaN devices addressing some of the design challenges for high voltage and high frequency designs. The next article looks at PCB materials to reduce circuit size and the one after addresses thermal power handling in space applications. The next article looks at environmental effects on circuit performance and how to test them while the last two articles address designing PCB mmWave circuits including amplifiers.
New Developments in SATCOM Amplifiers and Antennas
This eBook covers new RF design techniques being used in the area of SATCOM. It starts off with an overview of defense technologies by Strategy Analytics followed by two articles on the design of GaN amplifiers for SATCOM including new GaN-on-diamond amplifiers and another on space qualified GaN amplifiers. And the final article takes a look at new antenna technologies that promise great improvements for SATCOM and other applications. Read this eBook to learn about these new trends in SATCOM design.
SATCOM GaN Power Amplifier Design
The first article in this eBook is written by Strategy Analytics’ Asif Anwar covering the military satellite terminal basics, market trends and the outlook for this market. With a major shift from GaAs to GaN as the semiconductor device material of choice, Norsat compares the two technologies covering the reasons for this shift and the advantages of GaN technology for SATCOM amplifiers. Another article covers the design of a broadband, highly efficient, GaN power amplifier. The last article reviews GaN SSPA technology for space-based applications covering the challenges to device design and reliability as they start to replace TWTs in this area. Read this eBook to learn about these important topics in SATCOM amplifiers.
GPS/GNSS Interference Challenges and Solutions
With the expansion of GNSS/GPS systems worldwide, this eBook addresses the critical interference issues covering filter design, co-existence of systems, system architecture, testing, temperature considerations and more in the successful design of GNSS/GPS systems for today’s wireless applications. It also offers insight into basic filter design in systems and filter design trends in the market.