A Compact Stacked SIW Six-Port Junction

Journal
IEEE Microwave and Wireless Technology Letters  
Volume
33
Issue
5
Citation
IEEE Microwave and Wireless Technology Letters 33 (5): 515-518 (2023-05)
Publisher DOI
10.1109/lmwt.2022.3233520
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
This letter presents a compact substrate-integrated waveguide (SIW) six-port junction. It consists of two E -plane power dividers, two cruciform quadrature hybrid couplers, and one self-compensating quadrature phase shifter. In contrast to state-of-the-art implementations, the couplers are positioned on top of each other, which, in total, reduces the overall occupied area by 40%. The six-port junction is fabricated and measurements confirm its functionality in the frequency range between 22 and 28 GHz.