US 12,300,903 B2
Feed network for improving convergence of lobe width of wideband antenna
Guoqun Chen, Suzhou (CN); Shengguang Wang, Suzhou (CN); and Zhongcao Yang, Suzhou (CN)
Assigned to PROSE TECHNOLOGIES (SUZHOU) CO., LTD., Suzhou (CN); and PROSE TECHNOLOGIES LLC, Mount Olive, NJ (US)
Filed by PROSE TECHNOLOGIES (SUZHOU) CO., LTD., Suzhou (CN); and PROSE TECHNOLOGIES LLC, Mount Olive, NJ (US)
Filed on Dec. 23, 2021, as Appl. No. 17/561,428.
Application 17/561,428 is a continuation of application No. PCT/CN2019/105652, filed on Sep. 12, 2019.
Prior Publication US 2022/0123466 A1, Apr. 21, 2022
Int. Cl. H01Q 3/28 (2006.01); H01Q 3/36 (2006.01); H01Q 5/50 (2015.01); H01Q 9/04 (2006.01); H01Q 1/24 (2006.01)
CPC H01Q 3/28 (2013.01) [H01Q 3/36 (2013.01); H01Q 5/50 (2015.01); H01Q 9/0421 (2013.01); H01Q 9/0435 (2013.01); H01Q 1/246 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A feed network for improving a convergence of a lobe width of a wideband antenna, comprising: a first power divider, a delay line, a 90° electric bridge and a second power divider,
wherein the first power divider is configured to convert an input signal of the feed network into a first signal and a second signal, transmit the first signal to the delay line, and transmit the second signal to the 90° electric bridge directly;
the delay line is configured to change a phase of the first signal and transmit the first signal to the 90° electric bridge;
the 90° electric bridge is configured to convert the received first signal and the received second signal into two signals having a same phase but different amplitudes, transmit one of the two signals to the second power divider, and output the other one of the two signals to a first radiator directly;
the second power divider is configured to output the one of the two signals to a second radiator; and
the delay line includes a first main transmitting microstrip line and a short-circuit microstrip line connected in a T-shape, and a non-short-circuit terminal of the short-circuit microstrip line is connected to the first main transmitting microstrip line, and a short-circuit terminal of the short-circuit microstrip line is provided with a grounding vias.