Communications: radio wave antennas – Antennas – Slot type
Patent
1988-01-20
1989-02-07
Sikes, William L.
Communications: radio wave antennas
Antennas
Slot type
343746, H01Q 1310
Patent
active
048034940
ABSTRACT:
A cavity backed crossed slot antenna wherein the cavity depth d is less than one eighth of the operating wavelength .lambda. at the lowest frequency of operation, the major dimension a of the cavity in the plane of the slots is less than one half of the wavelength .lambda. at the lowest operating frequency, and the slots are excited by four symmetrically located capacitive coupled feed probes.
REFERENCES:
patent: 2557951 (1951-06-01), DeRosa
patent: 2832955 (1958-04-01), Jasik
patent: 3009153 (1961-11-01), Masters et al.
patent: 3031665 (1962-04-01), Marie 343770
Norris Andrew P.
Smith Martin S.
Sikes William L.
STC PLC
Wise Robert E.
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