Antenna device and wireless apparatus employing the same

Details Antenna device and wireless apparatus employing the same Antenna device and wireless apparatus employing the same

1995-09-27

1997-06-24

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With radio cabinet

343749, 343767, H01Q 124

Patent

active

056421206

ABSTRACT:
An antenna device with superior antenna characteristics, including gain, for use with a compact portable wireless apparatus is disclosed. Compactness is achieved by using the space provided by the antenna device without harming antenna characteristics. The antenna device includes two conductive plates spaced from each other so as to define a gap between them. The conductive plates are short-circuited at one end portion of the conductive plates by a short-circuit plate. A capacitance element for tuning is connected at the opposite end portion of the conductive plates. The positions of feed points on the conductive plates connected to a circuit device of the wireless apparatus are different from the position at which the capacitance element is connected.

REFERENCES:
patent: 5079559 (1992-01-01), Umetsu et al.

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