文档介绍：Low-cost Nonplanar Microstrip-line Ferrite Phase Shifter
Utilizing Circular Polarization
Jodie M. Bell1, William . Hui1, Magdy F. Iskander1, and Jar J. Lee2
1University of Hawaii at Manoa, {jodieb, whui, iskander}***@
2Raytheon Electronic Systems, jjlee8@
Abstract – This paper addresses the problems encountered by the previous ferrite phase
shifter design and the solutions proposed by a new ferrite phase shifter design. Specifics
of the various proposed solutions and the altered design are presented. The presented
results of the altered design, consisting of the insertion loss with respect to the amount of
bias, return loss with respect to the amount of bias, and total phase shift, show optimal
performance. These results verify the improvement of the new pared to the
previous design by showing excellent impedance match at high and low bias as well as
high-quality phase shift.
I. Introduction
Microwave ferrite phase shifters are primarily used in phased-array antenna systems to
electronically steer the antenna beam by providing a different phase shift to each
radiating element of the array. Because a typical phased-array antenna system consists of
thousands of radiating elements, consequently, thousands of phase shifters are also
needed. Therefore, low-cost, compact phase shifters are require