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Radio Physics and Radio Astronomy

ISSN Print: 2152-274X
ISSN Online: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v2.i2.90
pages 163-169

DIFFRACTION OF THE H10 WAVEGUIDE MODE ON A TRANSVERSE SLOT CUT THROUGH THE WIDER WALL OF A RECTANGULAR WAVEGUIDE WITH A LOCALIZED DIELECTRIC INSERT

L. P. Yatsuk
V. Karazin National University of Kharkov, 4, Svoboda Square, Kharkov 61077, Ukraine
D. Y. Penkin
Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166, Ukraine

ABSTRACT

The H10 mode is scattered from a narrow transverse slot placed over a finite-length dielectric insert completely filling the cross-section of a rectangular waveguide. The magnetic field induced by the slot in the dielectric, directly beneath the slot, is found with the use of the eigenwave technique and the tensorial Green function. Power parameters of the slotted waveguide radiator are determined. Correctness of the mathematical model constructed is confirmed by comparison of the model-based test computations with the results obtained with a commercial simulation code. A possibility has been discovered of ensuring a close to unity radiation efficiency from the slot.