Microstrip frequency-scan antenna

Details Microstrip frequency-scan antenna Microstrip frequency-scan antenna

1992-02-07

1993-09-07

Gregory, Bernarr E.

Communications: radio wave antennas

Antennas

Microstrip

343767, H01Q 1300

Patent

active

H00012300

ABSTRACT:
An antenna comprises a microstrip transmission line which includes a strip conductor and a ground plane conductor separated by a dielectric substrate; a portion of the substrate being adapted to enable energy within the substrate to radiate away from the microstrip transmission line. To permit frequency-scanning, the substrate has an antenna portion formed therein which is adapted to permit RF energy supplied to the microstrip transmission line to be directionally radiated away from the microstrip transmission line at the antenna portion, the direction of radiation being a function of the frequency of the supplied energy. The substrate may have greater capacitance at said antenna portion than at other portions of said substrate.

REFERENCES:
patent: 4689584 (1987-08-01), Sequeira
patent: 4754237 (1988-06-01), Stern et al.
patent: 4839659 (1989-06-01), Stern et al.
patent: 4879562 (1989-11-01), Stern et al.
Richard A. Stern and Richard W. Babbitt, "A MM-Wave Homogeneous Ferrite Pe Scan Antenna," Microwave Journal, Apr. 1987, pp. 101-108.
J. Borowick, W. Bayha, R. A. Stern, R. W. Babbitt, "Inertialess Scan Antenna Techniques for Millimeter Waves" 9th DARPA/Tri-Service MMWave Conference Record, 1981.
M. Collier, "Microstrip Antenna Array for 12GHz TV," Microwave Journal, vol. 20, No. 9, pp. 67-71.

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