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Journal Electromagnetic Waves and Electronic Systems №6 for 2015 г.
Article in number:
The frequency-selective devices on circular waveguides with two T-shaped ridges
Keywords: circular waveguide T-shaped ridge evanescent waveguide couple coefficients band-pass filter
Authors:
D.S. Gubsky - Ph. D. (Phys.-Math.), Associate Professor, Southern Federal University (Rostov-on-Don). E-mail: ds@sfedu.ru V.V. Zemlyakov - Ph. D. (Phys.-Math.), Associate Professor, Southern Federal University (Rostov-on-Don). E-mail: vvzem@yandex.ru D.V. Lonkina - Student, Southern Federal University (Rostov-on-Don). E-mail: lonkina.daria@yandex.ru G.P. Sinyavsky - Dr. Sc. (Phys.-Math.), Professor, Head of Department, Southern Federal University (Rostov-on-Don). E-mail: sinyavsky@sfedu.ru
Abstract:
The circular waveguiding structures with various irregularities and multilayered dielectric filling make a class of the devices which are widely used in the microwave equipment. The selective properties of the irregularities included in circular waveguides allow using them as basic elements for development of microwave devices. In this work the general approach to the synthesis of frequency-selective devices is considered. The way of initial approach receiving of a filter model which can be used for further characteristics optimization is described. As basic elements the volume resonators from pieces of circular waveguides with two metal T-shaped ridges are used. The results of calculation of cutoff frequencies of circular waveguides with two metal T-shaped ridges and couple coefficients for single evanescent waveguides are presented. The synthesis of the frequency-selective device is carried out and its S-parameters are calculated.
Pages: 27-32
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