H-Band Multilayer Waveguide Using Glide Symmetric Ebg

This work presents a fully metallic air-filled multilayer waveguide (MLW), that utilizes a glide symmetric unit cell as electromagnetic band-gap for improving manufacture tolerance. The proposed MLW is designed for the H-band, 220-330 GHz, obtaining an insertion losses below 0.4 dB. Additionally, the electromagnetic properties of the used unit cell, in particular its stopband attenuation, are investigated with the multimodal transfer matrix method, to better understand its physics.