US 9,812,778 B2
Integrated circuit apparatus with switched antennas
Natalino Camilleri, Cupertino, CA (US); and Stevan Preradovic, Melbourne (AU)
Assigned to ADVANCED MICRO DEVICES, INC., Sunnyvale, CA (US)
Filed by Nitero Pty Ltd., Fitzroy, Victoria (AU)
Filed on Sep. 12, 2014, as Appl. No. 14/484,630.
Prior Publication US 2016/0079666 A1, Mar. 17, 2016
Int. Cl. H01Q 3/24 (2006.01); H01Q 21/00 (2006.01)
CPC H01Q 3/24 (2013.01) [H01Q 21/0006 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a transceiver;
three or more antennas configured to transmit and receive signals, the three or more antennas including a first antenna having a first feed line length, a second antenna having a second feed line length, and a third antenna having a third feed line length, wherein the third feed line length is different than the second feed line length; and
an integrated circuit configured to:
at a first time, select for transmission and reception of electromagnetic radiation, from the three or more antennas, the first antenna and the second antenna, wherein the first feed line length and the second feed line length are selected so that the first antenna and the second antenna operate together to achieve a first predetermined phase and angle when operating in a specified frequency band, and
at a second time that is different than the first time, and in response to a change in position of one or more participants participating in communications with the apparatus, select for transmission and reception of electromagnetic radiation from the three or more antennas, the first antenna and the third antenna, wherein the first feed line length and the third feed line length are selected so that the first antenna and the third antenna operate together to achieve a second predetermined phase and angle when operating in the specified frequency band, wherein the second predetermined phase and angle are different than the first predetermined phase and angle.