US 12,143,145 B2
Duplexer measurement and tuning systems
Christof Pfannenmüller, Erlangen (DE); Dominic Koehler, Viereth-Trunstadt (DE); Julian W Zuber, Erlangen (DE); Oliver Georg Dorn, Erlangen (DE); Bjoern Lenhart, Nuremberg (DE); Harald Pretl, Schwertberg (AT); Rastislav Vazny, Sunnyvale, CA (US); and Christian F Tanzer, Perlesreut (DE)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/939,657.
Prior Publication US 2024/0080063 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/50 (2006.01); H03H 7/48 (2006.01); H04B 1/04 (2006.01); H04B 1/10 (2006.01)
CPC H04B 1/50 (2013.01) [H03H 7/487 (2013.01); H04B 1/0475 (2013.01); H04B 1/1027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a memory storing a tuning state;
an antenna configured to receive a downlink signal;
a receiver;
a transmitter configured to transmit an uplink signal;
a duplexer comprising a tunable component configurable based on the tuning state;
a combiner coupled to the transmitter and the duplexer;
a splitter coupled to the duplexer and the receiver; and
a processor coupled to the combiner and the splitter, the processor configured to
combine a first signal with the uplink signal at the combiner to generate a first combined signal,
receive a second combined signal comprising a second signal and the downlink signal at the splitter, and
adjust the tuning state based on the first signal and the second signal.