Full-duplex antenna system and method
First Claim
1. A full-duplex antenna system for selectively tuning communication channels, the system comprising:
- a first antenna effectively resonant at a frequency selectable first channel in an first frequency band, having an interface port with a first impedance at the first channel frequency;
a second antenna effectively resonant at a frequency selectable second channel in the first frequency band, having an interface with a second impedance at the second channel frequency;
a first matching circuit including a port connected to the first antenna interface port having a first conjugate impedance at the first channel frequency; and
, a second matching circuit including a port connected to the second antenna interface port having a second conjugate impedance at the second channel frequency.
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Accused Products
Abstract
A system and method is provided for full-duplex antenna impedance matching. The method comprises: effectively resonating a first antenna at a frequency selectable first channel in a first frequency band; generating a first antenna impedance at the first channel frequency; effectively resonating a second antenna at a frequency selectable second channel in the first frequency band; generating a second antenna impedance at the second channel frequency; supplying a first conjugate impedance match at the first channel frequency; and, supplying a second conjugate impedance match at the second channel frequency. For example, the first antenna may be used for transmission, while the second antenna is used for received communications. The antennas effectively resonant in response to: supplying frequency selectable conjugate impedance matches to the antennas; generating frequency selectable antenna impedances; and/or selecting the frequency of antenna resonance.
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Citations
59 Claims
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1. A full-duplex antenna system for selectively tuning communication channels, the system comprising:
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a first antenna effectively resonant at a frequency selectable first channel in an first frequency band, having an interface port with a first impedance at the first channel frequency;
a second antenna effectively resonant at a frequency selectable second channel in the first frequency band, having an interface with a second impedance at the second channel frequency;
a first matching circuit including a port connected to the first antenna interface port having a first conjugate impedance at the first channel frequency; and
,a second matching circuit including a port connected to the second antenna interface port having a second conjugate impedance at the second channel frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A wireless telephone with a full-duplex antenna matching system, the telephone comprising:
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a transceiver having a transmit port and a receiver port to process antenna communications in a first frequency band;
a first antenna effectively resonant at a frequency selectable first channel in an first frequency band, having an interface port with a first impedance at the first channel frequency;
a second antenna effectively resonant at a frequency selectable second channel in the first frequency band, having an interface with a second impedance responsive at the second channel frequency;
a first matching circuit having an output port connected to the first antenna interface port with a first conjugate impedance at the first channel frequency, and an input port connected to the transceiver transmit port; and
,a second matching circuit having an input port connected to the second antenna interface port with a second conjugate impedance at the second channel frequency, and an output port connected to the transceiver receive port. - View Dependent Claims (37, 38, 39, 40, 41)
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42. A method for full-duplex antenna impedance matching, the method comprising:
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effectively resonating a first antenna at a frequency selectable first channel in a first frequency band;
generating a first antenna impedance at the first channel frequency;
effectively resonating a second antenna at a frequency selectable second channel in the first frequency band;
generating a second antenna impedance at the second channel frequency;
supplying a first conjugate impedance match at the first channel frequency; and
,supplying a second conjugate impedance match at the second channel frequency. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification