This eBook covers a wide variety of current design and test challenges in the high frequency range from the lower to upper levels in the mmWave band. The first article is about using drones to measure satellite antennas in a more efficient and cost-effective way by avoiding transporting them to test facilities. The following article discusses the best semiconductor technologies for cellular applications about 90 GHz looking toward 6G. It compares the advantages and disadvantages of each platform. The next article compares several different packaging technologies for mmWave applications including cofired ceramic, antenna in package, fan-out wafer level packaging and PolyStrata®. Finally, the last article reviews the use of broadband free space methods for measuring dielectric materials at mmWave frequencies. These methods are coming under increased usage due to the increasing interest in 5G and mmWave sensing applications.
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