US 11,838,068 B2
Transceiver with shared filter for both transmit and receive modes
Yashar Rajavi, San Jose, CA (US); Sohrab Emami-Neyestanak, San Francisco, CA (US); and Abbas Komijani, Mountain View, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 30, 2022, as Appl. No. 17/810,332.
Application 17/810,332 is a continuation of application No. 16/953,244, filed on Nov. 19, 2020, granted, now 11,381,279.
Prior Publication US 2022/0407560 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 3/21 (2006.01); H04B 3/04 (2006.01); H04B 3/50 (2006.01); H04B 15/00 (2006.01)
CPC H04B 3/21 (2013.01) [H04B 3/04 (2013.01); H04B 3/50 (2013.01); H04B 15/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a first transmitter circuit having an output coupled to a first signal node, the transmitter configured to transmit signals during operation in a transmit mode;
a receiver circuit having an input coupled to the first signal node, wherein the receiver circuit is configured to receive signals during operation in a receive mode;
a first transmission line configured to convey signals in both the transmit and receive modes; and
a first filter coupled between the first signal node and the first transmission line, wherein the first filter is configured to provide an equivalent frequency response for operation in both the transmit and receive modes.