Author(s)

Te-Chuan Chen, Hualiang Zhang, Hao Xin

Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, USA.

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.

W-Band, Band-Stop Filter, Electromagnetic Crystal, Band-Gap, Waveguide

Chen, T. , Zhang, H. and Xin, H. (2016) A W-Band Waveguide Band-Stop Filter Using Electromagnetic Crystal (EMXT) Surface. Circuits and Systems, 7, 4001-4008. doi: 10.4236/cs.2016.712331.