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New eBooks:

RELL

Compact Antennas for Future 5G Smartphones

This eBook looks at a new antenna design that can connect to any mmWave module and provide better efficiency than patch antennas yet still fit into the compact size form factor for smartphones and other mobile devices. The first article covers the design requirements and challenges for mmWave 5G compact smartphone antennas. The need for mmWaves is outlined followed by a contrast of 4G and 5G architectures highlighting the differences in their antenna designs. Case studies of deployment scenarios for outdoor and indoor links are presented. A detailed set of requirements for antenna designs of future smartphones is discussed. Some previously reported candidate antenna designs are also reviewed. The second article provides specific compact wideband design examples and the third includes several pattern diversity architecture examples.

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RELL

Design Considerations for High Reliability RF PCB Circuit Designs for Extreme Environments

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.

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RELL

Design Innovations in mmWave MMICs

This eBook provides design advice on mmWave components and some examples of the new systems and applications where companies are providing interesting solutions. SOI is a semiconductor platform well suited for mmWave applications and so that is covered in the first article. Knowles offers design advice in several of the articles covering optimized solutions for many passive devices for mmWave applications. A unique liquid crystal steerable antenna system is also covered along with trends in millimeter phased arrays and MIMO radar. Another article looks at the role of satellites in 5G networks. Read this collection of articles for design advice and interesting examples of how mmWave components are being used in practical applications.

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