Compact time-delay shifters that are process insensitive

Camille Lesko; William A. Hill; Fred Dietrich; William Nelson

doi:10.1117/12.44512

1 July 1991 Compact time-delay shifters that are process insensitive

Camille Lesko, William A. Hill, Fred Dietrich, William Nelson

Proceedings Volume 1475, Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems; (1991) https://doi.org/10.1117/12.44512
Event: Orlando '91, 1991, Orlando, FL, United States

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.

Citation Download Citation

Camille Lesko, William A. Hill, Fred Dietrich, and William Nelson "Compact time-delay shifters that are process insensitive", Proc. SPIE 1475, Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems, (1 July 1991); https://doi.org/10.1117/12.44512

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