Title :
Design and discussion of a compact feeding network for Ku-band active phased array
Author :
Qingqiang He ; Haidong Chen ; Xu Wei ; Wenquan Che
Author_Institution :
Commonness Technol. Dept., Southwest China Inst. of Electron. Technol., Chengdu, China
Abstract :
A compact feeding network for Ku-band active phased array applications is proposed and investigated in this paper. The feeding network is integrated into the substrate with structure size of 8.2λ0 × 9λ0 at the center frequency for a 16×16 array scale, when 32 output ports are welded perpendicularly for connecting the active TR modules and 3 input ports (sum port, azimuth difference port, and elevation difference port) are interconnected to IF modules vertically. Two methods such as shield cavity-microstrip hybrid (SCH) technique and substrate integrated waveguide (SIW) technique are researched and discussed, and corresponding prototypes are manufactured and measured, respectively. Particular measured results are given in order to demonstrate the new methods´ traits for different application conditions.
Keywords :
active antenna arrays; antenna feeds; antenna phased arrays; microstrip antenna arrays; substrate integrated waveguides; IF modules; Ku-band active phased antenna array; SCH technique; SIW technique; active TR modules; compact feeding network; input ports; output ports; shield cavity-microstrip hybrid technique; substrate integrated waveguide technique; Arrays; Couplers; Microstrip; Phase shifters; Ports (Computers); Power dividers; Substrates; active phased array; feeding network; shield cavity-microstrip hybrid (SCH); substrate integrated waveguide (SIW);
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992712