Title :
Microwave phase shifter utilizing nonreciprocal wave propagation
Author :
How, Hoton ; Vittoria, Carmine
Author_Institution :
Hotech Inc., Belmont, MA, USA
Abstract :
Novel microwave phase shifters are proposed and fabricated utilizing nonreciprocal wave propagation whose insertion loss is independent of the obtained angle in phase shift. The fabricated phase shifter consisted of a ferrite ring resonator whose feeder point can be mechanically adjusted to give 360° phase-shift angle at relatively constant insertion loss. Measurements are compared with calculations.
Keywords :
ferrite phase shifters; microstrip resonators; microwave phase shifters; microwave propagation; ferrite ring resonator; insertion loss; microwave phase shifters; nonreciprocal wave propagation; phase-shift angle; Costs; Ferrites; Insertion loss; Microwave propagation; Phase shifters; Phased arrays; Propagation losses; Radar antennas; Radar imaging; Radar scattering; Circular polarization; constant insertion loss; degeneracy removal; dipole mode; ferrite resonator; frequency tuning; microwave device; nonreciprocal wave propagation; phase shift; phase shifter; rotating arm; switch coupling; uniform rotation;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.828466
