Design of an E-band Power Dividing/Combining Network Based on H-Plane 3dB Directional Couplers
Volume 7, Issue 1, February 2019, Pages: 50-55
Received: Apr. 19, 2019;
Published: May 23, 2019
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Chen Peng, State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China
Wan Peng, State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China
Xu Jinping, State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China
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In this paper, an E-band four-channel power dividing/combining network is designed based on H-plane 3dB waveguide directional couplers. Firstly, the waveguide H-plane 3dB directional coupler with working frequency of 71~78GHz is designed by HFSS to achieve low loss and high isolation. According to the phase relationship of each port of the coupler, the topology of the power dividing/combining network is worked out, and then the HFSS simulation analysis model for the whole network is established. On the basis of simulation analysis and optimization, a prototype of the four-channel power dividing/combining network of the E-band were manufactured. A back-to-back testing scheme, where a one-fourth dividing network and a four-in-one combining network is jointed together, is adopted to facilitate the testing work. The measured results show that the overall insertion loss of the power dividing/combining network is less than 2.2dB, with a typical value of 1.7dB, in the frequency range of 72~77GHz.
3dB Directional Coupler, E-band, Power Synthesis, Broadband
To cite this article
Design of an E-band Power Dividing/Combining Network Based on H-Plane 3dB Directional Couplers, Science Discovery.
Vol. 7, No. 1,
2019, pp. 50-55.