Scattering of electromagnetic waves by a wall-section impedance discontinuity in a rectangular waveguide

1995 ◽  
Vol 38 (10) ◽  
pp. 706-713
Author(s):  
V. A. Neganov ◽  
V. Yu. Sovetkin
Keyword(s):  
Rectangular Waveguide ◽  
Electromagnetic Waves ◽  
Impedance Discontinuity

ELECTROMAGNETIC WAVES RADIATION INTO THE SPACE OVER A SPHERE BY A SLOT IN THE END-WALL OF A SEMI-INFINITE RECTANGULAR WAVEGUIDE

2013 ◽  
Vol 46 ◽  
pp. 139-158 ◽  
Author(s):  
Sergey L. Berdnik ◽  
Yuriy M. Penkin ◽  
Victor A. Katrich ◽  
Mikhail V. Nesterenko ◽  
Victor I. Kijko
Keyword(s):  
Rectangular Waveguide ◽  
Electromagnetic Waves ◽  
End Wall

ELECTROMAGNETIC WAVES SCATTERING AND RADIATION BY VIBRATOR-SLOT STRUCTURE IN A RECTANGULAR WAVEGUIDE

2012 ◽  
Vol 24 ◽  
pp. 69-84 ◽  
Author(s):  
Mikhail V. Nesterenko ◽  
Victor A. Katrich ◽  
Dmitriy Yu. Penkin ◽  
Sergey L. Berdnik ◽  
Victor I. Kijko
Keyword(s):  
Rectangular Waveguide ◽  
Electromagnetic Waves ◽  
Slot Structure ◽  
Scattering And Radiation

Solution of the Helmholtz equation for electromagnetic waves in an annular (segmented-annular) rectangular waveguide

2021 ◽  
Author(s):  
D.V. Semenov ◽  
D.S. Gudilin
Keyword(s):  
Electromagnetic Field ◽  
Helmholtz Equation ◽  
Rectangular Waveguide ◽  
Electromagnetic Waves ◽  
Point Of View ◽  
Practical Significance ◽  
Large Radius ◽  
Computing Systems ◽  
Bending Radius ◽  
Analytical Expressions

Formulation of the problem. When designing waveguides, spatial solutions are often in demand. However, from a methodological (including educational) point of view, mostly linear-extended structures with various sectional shapes are considered. The aim of this work is to consider a waveguide as a structure composed of segments bent in a plane with a certain radius. On the other hand, this solution is common for a plane-oriented waveguide path and, in the case of an infinitely large radius, converges to a solution for a straight waveguide. Practical significance. The presented solution of the Helmholtz equation for electromagnetic waves in an annular (segmentedannular) waveguide can be considered as a methodological basis for calculating a spatially oriented rectangular waveguide path. A step-by-step solution of the Helmholtz equation for a bent rectangular waveguide is presented; a methodology for determining the parameters of the electromagnetic field in a bent homogeneous waveguide is given. Expressions are derived for determining the parameters of the electromagnetic field components for waves of type E and H. General solutions are obtained that converge at an infinitely large bending radius to harmonic functions characteristic of solutions as applied to rectilinear waveguides. This technique can be applied both for analytical evaluation or numerical calculation and spatial modeling of waveguide parameters, and for designing the waveguide path as a whole. The presence of relatively simple analytical expressions greatly facilitates the task of analyzing and optimizing the waveguide path and building software and computing systems for their assessment, modeling and development.

scholarly journals Excitation Analysis of Transverse Electric Mode Rectangular Waveguide

2020 ◽  
Vol 20 (1) ◽  
pp. 1
Author(s):  
M. Reza Hidayat ◽  
Mohamad Hamzah Zamzam ◽  
Salita Ulitia Prini
Keyword(s):  
Insertion Loss ◽  
Rectangular Waveguide ◽  
Electromagnetic Waves ◽  
Return Loss ◽  
Bandpass Filter ◽  
Frequency Range ◽  
A Value ◽  
Observation Process ◽  
Wireless Broadband ◽  
Loss Parameter

A waveguide is a transmission medium in the form of a pipe and is made from a single conductor. A waveguide has the function of delivering electromagnetic waves with a frequency of 300 MHz - 300 GHz and is able to direct the waves in a particular direction. In its development, a waveguide can be used as a filter. A filter consists of several circuits designed to pass signals that are generated at a specific frequency and attenuate undesired signals. One type of filter that can pass a signal in a particular frequency range and block signals that are not included in that frequency range is a bandpass filter. In this article, we study a rationing analysis on rectangular waveguide using TEmn mode followed by an implementation of a bandpass filter in the frequency range of 3.3-3.5 GHz for S-Band Wireless Broadband and Fixed Satellite. The observation process is done by shifting the position of the connector (power supply) as much as five times the shift to get the results as desired. Based on the analysis of the simulation process using Ansoft HFSS software, it is observed that the optimized results of the rectangular waveguide mode TE10 were obtained at a distance between connectors of 30 mm with a cut-off frequency of 3.3 GHz, the value of the return loss parameter of -34.442 dB and an insertion loss of -0.039 dB. Whereas, the optimized TE20 mode can be obtained at a distance of 70 mm between connectors, with a cut-off frequency of 3.5 GHz, the value of the return loss parameter of -28.718 dB and an insertion loss of -0.045. The measurement of TE10 mode in our Vector Network Analyzer (VNA) shows a cut-off frequency of 3.2 GHz, with a value of the return loss of -18.73 dB and an insertion loss of -2.70 dB. Meanwhile, a measurement of TE20 mode results in a cut-off frequency of 3.2 GHz, with a value of the return loss of -5.89 dB and an insertion loss of -4.31 dB.

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