A C-Ku Band 5-Bit MMIC Phase Shifter Using Optimized Reflective Series/Parallel LC Circuits

Kenichi MIYAGUCHI, Morishige HIEDA, Yukinobu TARUI, Mikio HATAMOTO, Koh KANAYA, Yoshitada IYAMA, Tadashi TAKAGI, Osami ISHIDA

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Summary :

A C-Ku band 5-bit MMIC phase shifter using optimized reflective series/parallel LC circuits is presented. The proposed circuit has frequency independent characteristics in the case of 180 phase shift, ideally. Also, an ultra-broad-band circuit design theory for the 180 optimized reflective circuit has derived, which gives optimum characteristics compromising between loss and phase shift error. The fabricated 5-bit MMIC phase shifter with SPDT switch has successfully demonstrated a typical insertion loss of 9.4 dB 1.4 dB, and a maximum RMS phase shift error of 7 over the 6 to 18 GHz band. The measured results validate the proposed design theory of the phase shifter.

Publication
IEICE TRANSACTIONS on Electronics Vol.E86-C No.12 pp.2429-2436
Publication Date
2003/12/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
Category
Active(Phase Shifter)

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