Communication device and electronic device including the same
First Claim
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1. A communication device comprising:
- a communication module configured to discover a network capable of communication;
a processor configured to identify a first frequency band of the network and to output a control signal for changing a pass band of a band pass filter;
a multiplexer configured to change the pass band of the band pass filter to correspond to the first frequency band of the network;
a tunable tuner circuit configured to change an impedance thereof according to the control signal; and
an antenna that comprises one or more antennas,wherein the tunable tuner circuit comprises a variable inductor having an inductance that is changed according to the control signal and a variable capacitor having a capacitance that is changed according to the control signal,wherein the multiplexer comprises a surface acoustic wave (SAW) filter configured to filter a signal to or from the network corresponding to the frequency band of the network, andwherein the tunable tuner circuit is located between the SAW filter and the antenna, between the SAW filter and a receiving end, and between the SAW filter and a transmitting end.
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Abstract
A communication device includes: a communication module configured to discover a network capable of communication; a processor configured to identify a first frequency band of the network and to output a control signal for changing a pass band of a band pass filter; a multiplexer configured to change the pass band of the band pass filter to correspond to the first frequency band of the network; and a tunable tuner circuit configured to change an impedance thereof according to the control signal.
161 Citations
9 Claims
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1. A communication device comprising:
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a communication module configured to discover a network capable of communication; a processor configured to identify a first frequency band of the network and to output a control signal for changing a pass band of a band pass filter; a multiplexer configured to change the pass band of the band pass filter to correspond to the first frequency band of the network; a tunable tuner circuit configured to change an impedance thereof according to the control signal; and an antenna that comprises one or more antennas, wherein the tunable tuner circuit comprises a variable inductor having an inductance that is changed according to the control signal and a variable capacitor having a capacitance that is changed according to the control signal, wherein the multiplexer comprises a surface acoustic wave (SAW) filter configured to filter a signal to or from the network corresponding to the frequency band of the network, and wherein the tunable tuner circuit is located between the SAW filter and the antenna, between the SAW filter and a receiving end, and between the SAW filter and a transmitting end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification