Balanced distributed-element phase shifter

Author

Kim, Hongjoon ; Ho, Sung-Jin ; Yen, Chih-Chuan ; Sun, Kae-Oh ; van der Weide, D.W.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Wisconsin, Madison, WI, USA

Volume

15

Issue

3

fYear

2005

fDate

3/1/2005 12:00:00 AM

Firstpage

147

Lastpage

149

Abstract

We present a balanced distributed-element phase shifter based on a nonlinear transmission line (NLTL) structure. Results show the second harmonic is more than 13dB lower at 0-V bias than a conventional single-ended NLTL phase shifter. We fabricated both balanced and conventional NLTL phase shifters with the same coplanar waveguide (CPW) design and diodes, and observed that phase shifting and insertion loss for both structures were quite similar, yet harmonic distortion was greatly improved in the balanced structure.

Keywords

coplanar waveguides; harmonic distortion; phase shifters; transmission lines; varactors; balanced NLTL phase shifters; balanced distributed-element phase shifter; balanced structure; coplanar waveguide design; coplanar waveguide diodes; harmonic distortion; insertion loss; nonlinear transmission line; single-ended NLTL phase shifter; varactor; Capacitance; Coplanar transmission lines; Coplanar waveguides; Diodes; Harmonic distortion; Insertion loss; Phase shifters; Power harmonic filters; Transmission line theory; Voltage; Balanced structure; harmonics; nonlinear transmission line (NLTL); phase shifter; varactor;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2005.844200

Filename

1406058