Flexible L-network antenna tuner circuit

摘要

An ‘L’ shaped dynamically configurable impedance matching circuit is presented herein. The circuit can include a series element and a shunt element. The shunt element in the L-shaped impedance matching circuit can be moved or modified based on the impedance of the circuit elements in electrical communication with each side of the impedance matching circuit. Thus, in some cases, the impedance matching circuit may be a flexible circuit that can be dynamically modified based on the environment or configuration of the wireless device that includes the impedance matching circuit.

主权项

1. An impedance matching circuit comprising:
a series element located between a first node and a second node, the first node in electrical communication with an antenna, the second node in electrical communication with a diplexer; a shunt element configured to be in electrical communication between one of the first node and the second node, and ground; and a switch network configured to switch the shunt element from being in electrical communication between the first node and ground to being in electrical communication between the second node and ground, the switch network including first, second, and third switches, the first switch connected between the first node and the shunt element, the third switch connected between the shunt element and the second node, the second switch being part of the shunt element, the second switch separated from the first node by the first switch and separated from the second node by the third switch.