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Proceedings Paper

Compact time-delay shifters that are process insensitive
Author(s): Camille Lesko; William A. Hill; Fred Dietrich; William Nelson
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Paper Abstract

A compact 5-bit MMIC phase shifter has been developed utilizing FET switches and coplanar waveguide delay lines. The device has constant time delay over a bandwidth of more than 18 percent with an accuracy of +/- 1.2 ps at X-band. An 11.5 GHz version has less than 12 dB of insertion loss for any of its 32 states and an overall chip dimension of 2.25 x 2.50 mm. A 20 GHz version has less than 11 dB of insertion loss and an overall chip dimension of 2.0 x 3.0 mm. Unit-to-unit variation in absolute time delay is less than 2 ps across two wafer lots and four wafers.

Paper Details

Date Published: 1 July 1991
PDF: 10 pages
Proc. SPIE 1475, Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems, (1 July 1991); doi: 10.1117/12.44512
Show Author Affiliations
Camille Lesko, Loral Aerospace (United States)
William A. Hill, Loral Aerospace (United States)
Fred Dietrich, Loral Aerospace (United States)
William Nelson, Wheeler-Nelson Associates (United States)


Published in SPIE Proceedings Vol. 1475:
Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems
Regis F. Leonard; Kul B. Bhasin, Editor(s)

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