Communications: radio wave antennas – Antennas – Microstrip
Patent
1986-12-30
1989-02-28
Sikes, William L.
Communications: radio wave antennas
Antennas
Microstrip
H01Q 138
Patent
active
048090085
ABSTRACT:
An antenna assembly which comprises a first laminar structure which includes a sheet of dielectric material having on one side a contiguous metal sheet and on the other side a strip transmission line adapted to be coupled with signal feeding means, and a second laminar structure, one side of which is in contact with the transmission line, and having on the other side, at least one region but preferable at least two concentrically arranged regions of a coated or cladded metal which serves as a radiator, characterized in that the transmission line is non-symetrically disposed with respect to the radiator.
REFERENCES:
patent: 4138684 (1979-02-01), Kerr
patent: 4218682 (1980-08-01), Yu
patent: 4320402 (1982-03-01), Bowen
patent: 4605932 (1986-08-01), Butscher et al.
Microstrip Antenna Array for 12 GHz TV, Collier, M., Microwave Journal, vol. 20, No. 9, pp. 67-73.
British Gas plc
Johnson Doris J.
Sikes William L.
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