Tunable slot antenna with capacitively coupled slot island condu

Details Tunable slot antenna with capacitively coupled slot island condu Tunable slot antenna with capacitively coupled slot island condu

1998-05-29

2000-03-07

Wong, Don

Communications: radio wave antennas

Antennas

Slot type

343746, 343750, H01Q 1310

Patent

active

060346442

ABSTRACT:
A coaxial resonant slot antenna includes a flat rectangular conductive box having its top plate with a slot being defined therein, and a strip conductor disposed inside the box and electrically insulated from the box while high frequency or RF power is fed to the strip. An island conductor is provided in the slot for defining a capacitance between itself and the frame. This capacitance is rendered variable in value by use of a variable circuit.

REFERENCES:
patent: 4733245 (1988-03-01), Mussler
patent: 5465100 (1995-11-01), Remondiere et al.
U.S. application No. 08/708,563, Takei et al., filed Sep. 5, 1996.
U.S. application No. 09/035,848, Takei, filed Mar. 6, 1998.

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