Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2007-02-13
2007-02-13
Wimer, Michael C. (Department: 2821)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C455S575700
Reexamination Certificate
active
10899218
ABSTRACT:
A sub-band antenna matching method and an antenna matching system for selectively matching a communication bandwidth segment impedance have been provided. The method comprises: accepting a frequency-dependent impedance from an antenna; and, selectively supplying a conjugate impedance match for the antenna at a sub-band of a first communication band. In some aspects, the method selectively supplies a conjugate impedance match for the antenna at a sub-band of a second communication band. More specifically, the method comprises: tuning a first tuning circuit to a first frequency; simultaneously tuning a second tuning circuit to a second frequency to match the antenna at a low end of the first communication band. Likewise, the first tuning circuit is tuned to a third frequency and the second tuning circuit is tuned to a fourth frequency to match the antenna at a high end of the first communication band in response to the third and fourth frequencies.
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Fabrega-Sanchez Jorge
Poilasne Gregory
Toncich Stanley S.
Tran Allen
Kyocera Wireless Corp.
Wimer Michael C.
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