Switching device with selectable phase shifting modes for reduced intermodulation distortion
First Claim
1. A switching device with phase selection terminals to select between at least two phase shifting modes to reduce intermodulation distortion in said switching device, said switching device comprising:
- a first phase selection terminal to select a first phase shifting mode of said switching device by enabling a first transmission line in a first phase shifting switching branch;
a second phase selection terminal to select a second phase shifting mode of said switching device by enabling a second phase shifting switching branch;
wherein said intermodulation distortion is reduced by selecting one of said first and second phase shifting modes.
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Abstract
According to one exemplary embodiment, a switching device with phase selection terminals to select between at least two phase shifting modes to reduce intermodulation distortion in the switching device includes a first phase selection terminal to select a first phase shifting mode of the switching device by enabling a first transmission line in a first phase shifting switching branch coupled to an input of the switching device. The switching device further includes a second phase selection terminal to select a second phase shifting mode of the switching device by enabling a second phase shifting switching branch coupled to the switching device input. The intermodulation distortion in the switching device is reduced by selecting one of the first and second phase shifting modes. The first transmission line is enabled by enabling a FET coupled in series with the first transmission line in the first phase shifting switching branch.
39 Citations
20 Claims
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1. A switching device with phase selection terminals to select between at least two phase shifting modes to reduce intermodulation distortion in said switching device, said switching device comprising:
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a first phase selection terminal to select a first phase shifting mode of said switching device by enabling a first transmission line in a first phase shifting switching branch; a second phase selection terminal to select a second phase shifting mode of said switching device by enabling a second phase shifting switching branch; wherein said intermodulation distortion is reduced by selecting one of said first and second phase shifting modes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A switching device with reduced intermodulation distortion, said switching device comprising:
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a first switching arm coupled to a first input and a shared output of said switching device; said first switching arm comprising a plurality of phase shifting switching branches, a first of said plurality of phase shifting switching branches comprising a first transmission line; wherein one of said plurality of phase shifting switching branches is selected when said first switching arm is selected, thereby reducing said intermodulation distortion of said switching device. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A communication system comprising:
a switching device with reduced intermodulation distortion coupled between an antenna and at least one duplexer, said switching device comprising; a first switching arm coupled to a first input and a shared output of said switching device; said first switching arm comprising a plurality of phase shifting switching branches, a first of said plurality of phase shifting switching branches comprising a first transmission line; wherein one of said plurality of phase shifting switching branches is selected when said first switching arm is selected, thereby reducing said intermodulation distortion of said switching device. - View Dependent Claims (18, 19, 20)
Specification