Phase-shifting system using a displaceable dielectric and...

Details Phase-shifting system using a displaceable dielectric and... Phase-shifting system using a displaceable dielectric and...

2007-09-25

2007-09-25

Lee, Benny T. (Department: 2817)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

C333S161000, C333S156000

Reexamination Certificate

active

10502413

ABSTRACT:
A phase-shifting system for electrically swiveling the direction of a beam of an antenna field includes several radiators with two planes of polarization. The phase-shifting system includes two jointly changeable phase shifters with microstrip lines associated therewith. The electrical length of each phase shifter can be changed by a dielectric which is slidable above the microstrip lines. Such a phase-shifting system offers a simplified design and added functional safety by arranging the microstrip lines of both phase shifters in parallel next to each other and by providing a common slidable dielectric in order to change the electrical length of the microstrip lines of both phase shifters.

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Mark A. Gouker and Lawrence J. Kushner; A Microstrip Phase-Trim Device Using a Dielectric Overlay; 8099 IEEE Transactions on Microwave Theories and Techniques; No. 11 pp. 2023-2026; (Nov. 1994).

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