Empty substrate‐integrated waveguide phase inverter in millimetre‐wave band application. Issue 8 (1st April 2020)

• Record Type: Journal Article
• Authors: Peng, Hao; Zhao, Faju; Tatu, Serioja Ovidiu; Dong, Jun; Yang, Tao
• Is Part Of: Electronics letters. Volume 56:Issue 8(2020)
• Page Start: 382
• Page End: 385
• Publication Date: 2020-04-01
• Subjects: substrate integrated waveguides -- invertors -- millimetre wave integrated circuits; millimetre‐wave band application -- ESIW PI -- structural symmetry design -- ESIW PCB -- transmission channel -- phase difference -- Ka band -- empty substrate‐integrated waveguide phase inverter -- reversed‐phase transmission channel -- identical circuit plane; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2019.3413
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : In this Letter, a novel empty substrate‐integrated waveguide (ESIW) phase inverter (PI) applied in millimetre‐wave has been proposed. ESIW PI, based on the structural symmetry design, is made of four parts: top cover, middle layer, ESIW PCB, and bottom layer. Owing to the reversed‐phase transmission channel, the phase difference between the two outputs is absolutely equal to 180°. The simulation and measurement results are in a good agreement. In the entire Ka band, the return losses, insertion losses and amplitude imbalance of ESIW PI are better than 12.7, 2.66, and 0.64 dB ± 0.6 dB, respectively. Besides, the phase difference is within 180.5° ± 2.9° in the same frequency band. In addition, the input and output ports are located in the identical circuit plane, which is easy to integrate with other devices and components.