On the Benefits of Glide Symmetries for Microwave Devices

IEEE Journal of Microwaves

NELSON J. G. FONSECA¹  GUIDO VALERIO²  FRANCISCO MESA³  QIAO CHEN⁴  OSCAR QUEVEDO-TERUEL⁴ 

[1] Antenna and Sub-Millimeter Waves Section, European Space Agency, Noordwijk, AG, The Netherlands;CNRS, Laboratoire de Génie Electrique et Electronique de Paris, Sorbonne Universit&x00E9;Department of Applied Physics 1, ETS de Ingenieria Informatica, Universidad de Sevilla, Sevilla, Spain;Division for Electromagnetic Engineering, KTH Royal Institute of Technology, Stockholm, Sweden;

关键词: Anisotropy;    electromagnetic band-gap;    filters;    flanges;    gap waveguide technology;    glide symmetry;   

DOI  :  10.1109/JMW.2020.3033847

来源: DOAJ

【 摘 要 】

The presence of glide symmetries in periodic structures can introduce beneficial modifications in their electromagnetic properties. The difference between glide and non-glide periodic structures is due to the distinctive coupling between their constituent sub-unit cells. In this paper, we describe the recent discoveries on the remarkable properties of glide-symmetric periodic structures, which include widened stopbands, reduced dispersion, as well as enhanced anisotropy and magnetic response. These properties are explained through canonical structures simulated with two methods: mode matching and multimode transfer-matrix analysis. We also review the recent use of these distinctive properties for solving technological problems in practical devices such as filters, gap waveguide components, low-leakage flanges, compressed lenses, low-reflected material transitions and leaky-wave antennas with applications in 5G terrestrial communication systems, millimetre-wave satellite systems and automated contactless measurement techniques.

【 授权许可】

Unknown