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A foam-embedded wideband antenna array is used to build a portable system for congestive heart failure (CHF) detection. In addition to the array, which has a pair of four-element antenna subarrays, ...
A 6-bit digital phase shifter in 0.18-μm silicon-oninsulator (SOI) process is presented. It operates over a 4-7-GHz frequency band and provides 360° of phase coverage with 5.625° resolution using 64 ...
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