Digitally controlled phase shifter
AssigneeQUALCOMM Incorporated
InventorsDanial Ehyaie, Muhammad Adnan
Life of this patent
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Abstract
A digitally controlled phase shifter is disclosed. In an exemplary embodiment, an apparatus includes a first component connected between a first terminal and a node, a second component connected between a second terminal and the node, an impedance selectively connected between the first and second terminals by a first switch, and a second switch to connected between the node and a ground. The apparatus is configured to provide a first amount of phase shift when the first and second switches are in an open position, and a second amount of phase shift when the first and second switches are in a closed position.
Claims20
An apparatus comprising:
- a first component connected between a first terminal and a node;
- a second component connected between a second terminal and the node;
- a third impedance selectively connected between the first and second terminals by a first switch;
- and
- a second switch connected between the node and a ground, the first and second switches configured to enable selected amounts of phase shifts to signals flowing between the first and second terminals.
An apparatus comprising:
- means for providing a component connected between a first terminal and a node;
- means for providing a second component connected between a second terminal and the node;
- means for providing a third impedance connected between the first terminal and the second terminal;
- means for selectably disconnecting the third impedance from the second terminal;
- and
- means for selectably connecting the node to a ground, the means for selectably disconnecting and connecting configured to enable selected amounts of phase shifts to signals flowing between the first and second terminals.
Dependencies are inferred from the claim text.