Wideband antenna system

Details Wideband antenna system Wideband antenna system

2011-01-11

2011-01-11

Le, Nhan (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S101000, C455S550100, C343S893000

Reexamination Certificate

active

07869830

ABSTRACT:
Generally, an antenna module includes a plurality of monopole antenna elements (e.g., 3 to 4 antenna elements) that can be coupled together by one or more switches to provide for a tunable, wideband antenna module. For example, the switches may change the overall length of the antenna such that the frequency range of the antenna is changed. The frequency response may also be controlled by a low voltage micro sized varicap, or a varactor diode, and instantiated as a tuned, resonant matching filter network residing with the antenna module. Additionally, switches may be used to “switch in” and “switch out” capacitive elements to adjust the bandwidth of the antenna. The resonant matching filter network may then be used for fine tuning the frequency of that bandwidth.

REFERENCES:
patent: 5111213 (1992-05-01), Jahoda et al.
patent: 5734353 (1998-03-01), Van Voorhies
patent: 2002/0025793 (2002-02-01), Meijer et al.
patent: 2003/0219035 (2003-11-01), Schmidt
patent: 2004/0213178 (2004-10-01), Hood, III
patent: 2005/0052282 (2005-03-01), Rodgers et al.
patent: 2005/0107048 (2005-05-01), Saunders et al.
patent: 2005/0113039 (2005-05-01), Tsukamoto
patent: 2005/0245207 (2005-11-01), Suzuki et al.
patent: 2006/0009176 (2006-01-01), Saunders et al.

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