Wide-Stopband Diplexer With Small Frequency Ratio Based on SIW Dual-Mode Resonators for Millimeter-Wave Applications

Nuo Liu; Chenhui Fan; Xiaoxian Liu; Zhangming Zhu; Yintang Yang

doi:10.1109/tcpmt.2023.3243204

journal article·2023-02

Wide-Stopband Diplexer With Small Frequency Ratio Based on SIW Dual-Mode Resonators for Millimeter-Wave Applications

Nuo Liu, Chenhui Fan, Xiaoxian Liu, Zhangming Zhu, Yintang Yang

IEEE Transactions on Components, Packaging and Manufacturing Technology· Volume 13· Issue 2

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Source abstract

Abstract

A substrate-integrated waveguide (SIW) diplexer has been designed based on the dual-mode resonator operating with TE301 and TE103 modes in this letter. Techniques of harmonic interleaving, negative excitation and planar coupling structure, orthogonal transmission, and slot lines etched on the ground plane are exploited synthetically to extend the range of the out-of-band rejection. The diplexer with lower and upper channels centered at 34.95 and 36.44 GHz is fabricated and measured to verify the proposed concept, which exhibits a wide stopband better than 20 dB up to 82.92 GHz and a high isolation better than 28.9 dB over the whole band with three transmission zeros (TZs) nearby two passbands. Measurements accord well with the simulation results.

Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Microwave Engineering and Waveguides · Radio Frequency Integrated Circuit Design · Gyrotron and Vacuum Electronics Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shaanxi Key Laboratory of Integrated Circuits and Systems, School of Microelectronics, Xidian University, Xi’an, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China

References (23)

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