Title :
A 90-GHz Waveguide Variable Phase Shifter
Author :
Pisano, Giampaolo ; Savini, Giorgio ; Pietranera, Luca ; Isaak, Kate ; Johnson, Bradley ; Gervasi, Massimo ; Piccirillo, Lucio ; Maffei, Bruno ; Melhuish, Simon
Author_Institution :
Sch. of Phys. & Astron., Cardiff Univ.
fDate :
3/1/2007 12:00:00 AM
Abstract :
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
Keywords :
finite element analysis; microwave phase shifters; network analysers; 75 to 100 GHz; Ansoft HFSS finite-element analysis; half-wave retarder; iris polarizers; millimeter wave VNA; quarter-wave-retarders; waveguide components; waveguide variable phase shifter; Astronomy; Bandwidth; Electromagnetic waveguides; Frequency; Iris; Phase shifters; Polarization; Rectangular waveguides; Tellurium; Waveguide transitions; Phase shifters; waveguide components;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.890476
