US Patent 9813139 Automatic RF antenna switching for an electronic communication device

A device includes (a) a plurality of radio frequency (RF) switches, each operable with a plurality of frequency bands; an RF coupling device; and a processor programmed to selectively control operation of the plurality of RF switches based on an uplink signal from an electronic communication device electromagnetically coupled with the RF coupling device. The processor is programmed to selectively control operation of the plurality of RF switches by causing each of the RF switches to lock on a particular frequency band of the plurality of frequency bands corresponding to a frequency of the uplink signal from the electronic communication device.