Impedance Matching Circuit for a Mobile Communication Device
First Claim
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1. A method of transmitting adjusting the antenna impedance of a mobile communication device, comprising:
- detecting a position of a user'"'"'s hand position on the mobile communication device; and
dynamically adjusting the impedance of an antenna for the mobile communication device by selectively switching between multiple antenna feed configurations.
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Abstract
Position sensors detect the position of a user'"'"'s hand position on a mobile communication device. A controller dynamically adjusts the source impedance of a transmitter and/or receiver in the mobile communication device based on the user'"'"'s hand position to compensate for variations in the load impedance caused by the user'"'"'s hand position.
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Citations
25 Claims
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1. A method of transmitting adjusting the antenna impedance of a mobile communication device, comprising:
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detecting a position of a user'"'"'s hand position on the mobile communication device; and
dynamically adjusting the impedance of an antenna for the mobile communication device by selectively switching between multiple antenna feed configurations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A circuit for adjusting the impedance of an antenna in a mobile communication device, comprising:
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a position sensor to detect a position of a user'"'"'s hand on said mobile communication device;
a controller to dynamically adjust the impedance of the antenna by selectively switching between multiple antenna feed configurations based on the user'"'"'s hand position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A mobile communication device comprising:
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a housing;
a transmitter and a receiver within said housing;
an internal antenna within said housing coupled to said transmitter and said receiver, said antenna having a variable antenna feed configuration;
a position sensor to detect a position of a user'"'"'s hand on said housing; and
a controller to dynamically adjust the impedance of the antenna by selectively switching between multiple antenna feed configurations based on the user'"'"'s hand position. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification