Title :
Properties of NRD-guide and H-guide higher-order modes: physical and nonphysical ranges
Author :
Di Nallo, C. ; Frezza, F. ; Galli, A. ; Lampariello, P. ; Oliner, A.A.
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
Abstract :
New interesting modal properties are presented for the waveguiding structure constituted by a rectangular-section dielectric rod sandwiched between parallel conducting plates, which can represent either a non-radiative dielectric (NRD) guide or an H guide. A rigorous quantitative analysis of the dispersion properties indicates that higher-order modes can show different anomalous behaviors, as geometrical and electromagnetic parameters vary. A discussion of the physical nature of the waves related to complex wavenumbers allows us to illuminate the performance differences between NRD and H guides, as regards certain previously unexplored leakage effects.<>
Keywords :
dielectric-loaded waveguides; waveguide theory; H-guide; NRD-guide; complex wavenumbers; dispersion properties; electromagnetic parameters; geometrical parameters; higher-order modes; leakage effects; nonradiative dielectric guide; parallel conducting plates; rectangular-section dielectric rod; waveguiding structure; Dielectrics; Electromagnetic analysis;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335435
