A V-Band Inverted Microstrip Gap Waveguide End-Coupled Bandpass Filter

  1. Vosoogh, Abbas
  2. Brazalez, Astrid Algaba 1
  3. Kildal, Per-Simon
  1. 1 Universidad Politécnica de Cartagena
    info

    Universidad Politécnica de Cartagena

    Cartagena, España

    ROR https://ror.org/02k5kx966

Journal:
IEEE Microwave and Wireless Components Letters

ISSN: 1531-1309,  1558-1764

Year of publication: 2016

Volume: 26

Issue: 4

Pages: 261-263

Type: Article

DOI: 10.1109/LMWC.2016.2538598 GOOGLE SCHOLAR

More publications in: IEEE Microwave and Wireless Components Letters

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Abstract

This letter presents an end-coupled bandpass filter (BPF) based on the recently introduced inverted microstrip gap waveguide technology. The inverted microstrip gap waveguide is advantageous for millimeter wave applications because of its low-loss, self-packaging characteristics, and cost-effectiveness. A fourth order Chebyshev-type end-coupled BPF is designed to provide a 2 GHz bandwidth at 60 GHz center frequency. The fabricated prototype embedded within a 10 cm inverted microstrip gap waveguide, containing two back-to-back transitions to rectangular waveguide, exhibits an insertion loss of 3 dB in the passband. However, the insertion loss of the filter itself is better than 1.6 dB.

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