Communications: radio wave antennas – Antennas – With aircraft
Patent
1978-09-15
1981-01-13
Moore, David K.
Communications: radio wave antennas
Antennas
With aircraft
343725, 343770, H01Q 128
Patent
active
042452228
ABSTRACT:
A dual function antenna operating at two frequency bands for both the radar uzing function and the telemetry function with a single antenna cavity. A pair of flush-mounted, cavity-backed circumferential slots are located near the base of a missile body and are fed out-of-phase to produce an N=1 mode gain pattern with peaks at nose-on and aft aspects. Each slot is excited by a probe and tee-bar transition. A telemetry band trap circuit is incorporated into the radar band probe and tee-bar to isolate telemetry band energy. A single telemetry probe is inserted into the cavity and spaced apart from the radar probe to excite the antenna at telemetry frequencies.
REFERENCES:
patent: 3475755 (1969-10-01), Bassen et al.
patent: 3518683 (1970-06-01), Jones, Jr.
patent: 3550141 (1970-12-01), Harris et al.
patent: 3569971 (1971-03-01), Griffee
patent: 3573834 (1968-10-01), McCabe
patent: 3701161 (1972-10-01), Gregory
patent: 3739386 (1973-06-01), Jones, Jr.
patent: 3810183 (1974-05-01), Krutsinger et al.
patent: 3813674 (1974-05-01), Sidford
patent: 3914767 (1975-10-01), Jones, Jr.
Eng Edward
Gibbons Glen D.
Thomas David L.
Tse John W.
Curry Charles D. B.
Gray Francis I.
Moore David K.
Sciascia R. S.
The United States of America as represented by the Secretary of
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