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Compact And Wideband Mmic Phase Shifters Using Tunable Active Inductor Loaded All-Pass Networks, David M. Zaiden
Compact And Wideband Mmic Phase Shifters Using Tunable Active Inductor Loaded All-Pass Networks, David M. Zaiden
USF Tampa Graduate Theses and Dissertations
This dissertation addresses the design of monolithically integrated phase shifters at S- and L- frequency bands using a commercially available GaAs process from Triquint. The focus of the design is to operate over a wide bandwidth with full 360° phase shift capability, 50 Ω input/output impedance match and low RMS phase and gain errors. The first version of the design is based on passive all-pass phase shifters integrated with wideband amplifiers to compensate for insertion loss. This design uses a 4-bit system to achieve the required phase shift and each bit consists of 3 sections of all-pass filters designed at …