Conformal multifunction shared-aperture antenna

Details Conformal multifunction shared-aperture antenna Conformal multifunction shared-aperture antenna

1994-03-11

1996-04-16

Hajec, Donald

Communications: radio wave antennas

Antennas

Plural separate diverse type

343895, 343727, H01Q 2100, H01Q 136

Patent

active

055087108

ABSTRACT:
A shared aperture, multifunction conformable antenna has a spiral-mode microstrip (SMM) antenna portion having a spacer for maintaining the SMM antenna in spaced relationship to a ground plane, with dielectric material therebetween. The SMM antenna portion is substantially surrounded by a loop antenna which is spaced therefrom and which is electrically connected to the spiral-mode portion by a high frequency choke to block FM broadcast band signals from the SMM antenna. An AM-broadcast-band-blocking capacitor functions to route AM signals to the SMM antenna portion. The spiral-mode antenna receives signals at frequencies above 300 MHz, the loop antenna receives signals in the FM band, and both the loop antenna and the spiral-mode antenna receive signals in the AM band.

REFERENCES:
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patent: 5313216 (1994-05-01), Wang et al.
Dual-Frequency Antenna with Dichroic Reflector and Microstrip . . . , C. A. Chen and T. K. Tung, Antennas and Propagation, vol. 1 (1982 APS Symp.) May 24-28, 1982.
Meharry et al., 6 to 18 GHz Transmit/Receive Modules for Multifunction Phased Arrays, 1989 IEEE MTT-S Internat'l Microwave Symp. Digest, Jun. 13-15, 1989.

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