Patent ID: 9717008
Date: 2017-07-25
CPC Classifications: H04B,H04W

Claim:
1. A radio frequency (RF) integrated circuit including: (a) a primary RF transmission path; (b) a primary RF reception path; (c) at least one RF transceiver front-end circuit, each selectively connectable to the primary RF transmission path and the primary RF reception path; and (d) at least one switchable cross-circuit calibration path coupled to the at least one RF transceiver front-end circuit and configured to convey, in a calibration mode, an RF test signal from the primary RF transmission path through the coupled at least one RF transceiver front-end circuit to the primary RF reception path; wherein the effects on the RF test signal of all but one of the coupled at least one RF transceiver front-end circuit are minimized so as to relatively isolate any remaining coupled RF transceiver front-end circuits.