Inventors:
Ichiro Aoki - San Clemente CA, US
Scott D. Kee - Dana Point CA, US
Dongjiang Qiao - San Diego CA, US
Alyosha C. Molnar - Berkeley CA, US
Assignee:
Axiom Microdevices, Inc. - Woburn MA
International Classification:
H04B 1/06
US Classification:
455260, 455 76, 4551651, 455255, 455261, 455265, 455 75, 455258, 455318, 4551803, 455147, 375355, 375239, 375371, 375373, 375295, 375316, 375300, 375259, 327291, 327161, 327162, 327156, 360 32, 370485, 331 11
Abstract:
A phase detector includes a plurality of phase detectors located in a phase correction loop, each phase detector configured to receive as input a radio frequency (RF) input signal and an RF reference signal, each of the plurality of phase detectors also configured to provide a signal representing a different phase offset based on the phase difference between the RE input signal and the RF reference signal; and a switch configured to receive an output of each of the plurality of phase detectors and configured to select the output representing the phase offset, that is closest to a phase of an output of an amplifier.