Patent ID: 9281562
Filing Date: 2016-03-08
CPC Classification: H01Q

Claim Text:
1. An apparatus comprising: a first port configured to couple to a first location on an antenna; a second port configured to couple to a second location on the antenna; a switch configured to switch between a first electrical configuration in which the first port is coupled to radio circuitry, and a second electrical configuration in which the second port is coupled to the radio circuitry; first reactive circuitry configured to impedance match the antenna with the radio circuitry at a first operational resonant frequency band; and second reactive circuitry, different to the first reactive circuitry, and configured to impedance match the antenna with the radio circuitry at a second operational resonant frequency band, different to the first operational resonant frequency band, and wherein the first reactive circuitry is configured to ground the first port when the switch is in the second electrical configuration, and the second reactive circuitry is configured to ground the second port when the switch is in the first electrical configuration.