X-Band Multi-Hole Directional Coupler with Folded Substrate-Integrated Waveguide

作者：Karimabadi S Sadat; Attari A R^*

来源：Electromagnetics, 2015, 35(6): 404-414.

DOI：10.1080/02726343.2015.1053354

• compact
• folded substrate-integrated waveguide
• wideband
• coupler

Based on the theory of multi-hole waveguide directional couplers, an X-band multi-hole directional coupler with a folded substrate-integrated waveguide has been designed and fabricated. Simulation results show that the proposed coupler has isolation greater than 19 dB and a return loss better than 18.5 dB over a 50% fractional bandwidth at 10 GHz. The proposed folded substrate-integrated waveguide coupler has been fabricated, and measured data are almost consistent with simulation results. Isolation greater than 17 dB and return loss better than 13 dB are experimentally validated.

• 出版日期2015-8-18