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SLOTTED SPHERICAL ANTENNA WITH A MULTI-ELEMENT DIAPHRAGM IN THE WAVEGUIDE

By S. L. Berdnik, V. A. Katrich, V. I. Kijko, M. V. Nesterenko, and Y. M. Penkin

Full Article PDF (391 KB)

Abstract:
A problem of electromagnetic wave radiation by narrow slots cut in an end wall of a semi-infinite waveguide section into space above a perfectly conducting sphere is solved in a strict self-consistent formulation by the generalized method of induced magnetomotive forces (MMF). Inside the waveguide section, a reentrant cavity formed by the volume between a slotted diaphragm and the waveguide end wall is located. The waveguide is operating in the frequency range of a single-mode regime. The electrodynamic characteristics of this radiating system with the spherical screen of resonant dimensions are investigated numerically and ex-perimentally. The possibility to develop the spherical antennas with a narrow-band frequency, energy, and spatial characteristics is substantiated.

Citation:
S. L. Berdnik, V. A. Katrich, V. I. Kijko, M. V. Nesterenko, and Y. M. Penkin, "Slotted Spherical Antenna with a Multi-Element Diaphragm in the Waveguide," Progress In Electromagnetics Research M, Vol. 95, 1-12, 2020.
doi:10.2528/PIERM20050806
http://www.jpier.org/pierm/pier.php?paper=20050806

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