Tunable slot antenna

Details Tunable slot antenna Tunable slot antenna

1998-03-06

2000-02-22

Vu, David H.

Communications: radio wave antennas

Antennas

Slot type

343700MS, 343746, 343750, 343768, H01Q 1310

Patent

active

060285613

ABSTRACT:
In order to offer a tunable slot antenna capable of varying an impedance matching center frequency thereof, there is provided a coaxial resonant slot antenna for supplying RF power to a strip conductor placed in a flat conductive cubic with a slot formed in its upper surface and electrically insulated from the flat conductive cubic, wherein a variable capacitor is electrically connected between one point lying in the neighborhood thereof including an end far from a RF power connection point on the strip conductor and a side wall of the flat conductive cubic, and a d.c. voltage to be applied across the variable capacitor is supplied to the connection point.

REFERENCES:
patent: 4197545 (1980-04-01), Favaloro et al.
patent: 5136304 (1992-08-01), Peters
patent: 5489913 (1996-02-01), Raguenet et al.
"Antenna Engineering Handbook", The Institute of Electronics and Communication Engineers of Japan, published by Ohm Co., Ltd., Oct. 1980, pp. 43-46.

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