US 12,294,430 B2
Signal processing device and base station antenna
Zhiwei Yin, Suzhou (CN); Fangwen Wan, Suzhou (CN); and Dingshu Jin, Suzhou (CN)
Assigned to Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed by Outdoor Wireless Networks LLC, Claremont, NC (US)
Filed on Jan. 4, 2023, as Appl. No. 18/092,965.
Claims priority of application No. 202210003714.2 (CN), filed on Jan. 5, 2022.
Prior Publication US 2023/0216562 A1, Jul. 6, 2023
Int. Cl. H04B 7/06 (2006.01)
CPC H04B 7/0617 (2013.01) 20 Claims
OG exemplary drawing
 
1. A signal processing device, comprising:
a substrate;
a beam-forming network, provided on a first side of the substrate; and
a calibration circuit that is configured to extract a portion of a test signal to calibrate amplitude and phase weights, the calibration circuit provided on the first side of the substrate,
wherein the beam-forming network is connected to the calibration circuit via a connection trace on the substrate.