US 12,267,090 B2
Intermediate frequency filter for millimeter-wave carrier aggregation
Wu-Hsin Chen, San Diego, CA (US); Yunfei Feng, San Diego, CA (US); Vinod Panikkath, San Diego, CA (US); Li Liu, San Diego, CA (US); and Sher Jiun Fang, Allen, TX (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 23, 2022, as Appl. No. 17/934,784.
Prior Publication US 2024/0106463 A1, Mar. 28, 2024
Int. Cl. H04B 1/00 (2006.01); H03H 7/01 (2006.01); H04B 1/10 (2006.01)
CPC H04B 1/0057 (2013.01) [H03H 7/0115 (2013.01); H03H 7/0153 (2013.01); H03H 7/1766 (2013.01); H04B 1/1036 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A wireless communication apparatus, comprising:
a high band millimeter wave (mmW) carrier aggregation (CA) receive port;
a high band mixer including a radio frequency (RF) receive signal input, a local oscillator (LO) input, and an IF signal output, wherein the RF receive signal input is coupled to the high band mmW CA receive port;
a tunable high pass filter including an input and an output, wherein the input is coupled to the IF signal output of the high band mixer;
an intermediate frequency (IF) received signal multiplexer including a merged IF CA signal output, a first input, and a second input, wherein the first input is coupled to the output of the tunable high pass filter;
a low band mmW CA receive port;
a low band mixer including an RF receive signal input, an LO input, and an IF signal output, wherein the RF receive signal input of the low band mixer is coupled to the low band mmW CA receive port; and
a tunable low pass filter including an input and an output, wherein the input is coupled to the IF signal output of the low band mixer, and wherein the output is coupled to the second input of the IF received signal multiplexer.