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A 90-GHz Waveguide Variable Phase Shifter

2007; IEEE Microwave Theory and Techniques Society; Volume: 17; Issue: 3 Linguagem: Inglês

10.1109/lmwc.2006.890476

1558-1764

G. Pisano, G. Savini, L. Pietranera, K. G. Isaak, Bradley R. Johnson, M. Gervasi, Lucio Piccirillo, B. Maffei, S. J. Melhuish,

Superconducting and THz Device Technology

A 90-GHz waveguide phase shifter based on a rotating half-wave retarder has been designed, manufactured, and tested. The rotating half-wave- and two external quarter-wave-retarders are made of iris polarizers. The design has been optimized using finite-element analysis (Ansoft HFSS), with measurements made using a millimetre-wave VNA. We achieve a phase shift that is flat to within 0.7/1.2deg over 80-95/75-100GHz