US 12,068,774 B2
Transceiver with auxiliary receiver calibration apparatus and methodology
Debapriya Sahu, Bangalore (IN); Rohit Chatterjee, Bangalore (IN); and Srinivas Venkata Veeramreddi, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on May 5, 2023, as Appl. No. 18/312,720.
Application 18/312,720 is a continuation of application No. 17/348,817, filed on Jun. 16, 2021, granted, now 11,683,066.
Application 17/348,817 is a continuation of application No. 16/404,598, filed on May 6, 2019, granted, now 11,070,242, issued on Jul. 20, 2021.
Prior Publication US 2023/0275614 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/44 (2006.01); H04L 27/36 (2006.01)
CPC H04B 1/44 (2013.01) [H04L 27/367 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A wireless device comprising:
a transmitter path comprising a first amplifier having an output configured to be coupled to a transmitter antenna;
a receiver path comprising a first output terminal and a second output terminal;
a first mixer having an input and an output, wherein the output of the first mixer is coupled to the first output terminal of the receiver path;
a first capacitor coupled between the output of the first amplifier and the input of the first mixer;
a second capacitor coupled between the output of the first amplifier and a first intermediate node; and
a second mixer having an input coupled to the first intermediate node and an output coupled to the second output terminal of the receiver path.