Reducing resonant length of sidewall-inclined slots in a rectangular waveguide

✍ Scribed by Abbas Ali Heidari; Keyvan Forooraghi; Mohammad Hakkak

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 120 KB
• Volume: 37
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.10876

✦ Synopsis

Abstract

In this paper, the admittance characteristics of a dielectric filled inclined slot in the narrow wall of a rectangular waveguide have been calculated. By enforcing the continuity of the tangential magnetic field through the slot aperture, an integral equation with the tangential electric field in the slot as the unknown is obtained. An entire domain method of moments (MoM) is used to solve the integral equation. Numerical results show that the slot can resonate without penetrating onto the top and bottom broad walls of the waveguide. It has also been shown that the resonant frequency (length) and the resonant conductance of the slot depend on the dielectric constant of the material filling the slot. The computed results are shown to be in good agreement with those obtained by HP‐HFSS. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 222–226, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10876