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A W-Band Waveguide Band-Stop Filter Using Electromagnetic Crystal (EMXT) Surface
Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
- 1 Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
- 2 Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
- 3 Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA
Circuits and Systems·Volume 07 (2016)·Pages 4001–4008·Published 28 October 2016·DOI10.4236/cs.2016.712331
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Abstract
A rectangular waveguide band-stop filter using electromagnetic crystals (EMXT) surface as the top and bottom walls is presented in this letter. The EMXT surface has a band gap that can prevent electromagnetic wave from propagating along the waveguide. Dispersion properties of the waveguide filter are analyzed using an approximated lumped-element circuit model. A W-band prototype based on the proposed waveguide filter is designed and characterized. The experimental results show a rejection band centered at 97 GHz and a rejection level of 16 dB.
KeywordsW-BandBand-Stop FilterElectromagnetic CrystalBand-GapWaveguide
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