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This paper presents a numerical study of the electromagnetic wave propagation in dielectric loaded circular quadruple-ridged waveguide (CQRW) by the edge element method. The variations of the cut-off wavelength and single-mode bandwidth with the ridge dimensions for different values of dielectric constant are studied in detail. The numerical results in this paper provide an extension to the design...
Firstly, the geometric model of novel pillowy groove guide was described. Secondly, the pillowy groove guide has been analyzed with method of moment. And the characteristic equation of pillowy groove guide has been gotten. At last, its dominant mode bandwidth properties has been obtained. And the bandwidth characteristics of its dominant mode along with the geometric dimensions a, d, c and the deformation...
A kind of asymmetric V ridge waveguide is presented. Variations of the cut-off wavelength, single-mode bandwidth with the ridge dimensions and the ridge position for different values of dielectric constant are investigated in detail. The field patterns of the dominant are presented. The correctness of the numerical results is verified. The results provide an extension to the existing design data for...
The V-shaped groove guide with arbitrary cross-section has been studied with method of moment. The cut-off and dispersion properties of the dominant mode have been obtained and discussed. It is of important values in theoretical studies and practical engineering applications of arbitrarily V-shaped groove guide for millimeter waves.
A kind of asymmetric elliptical ridge waveguide is presented. Variations of the cut-off wavelength, single-mode bandwidth with the ridge dimensions and the ridge position for different values of dielectric constant are investigated in detail. The field patterns of the dominant and the first higher mode are also presented. The correctness of the numerical results is verified. The results provide an...
The V-shaped groove guide with arbitrary inclination angle has been studied with method of moment. The single mode bandwidth properties has been obtained and discussed. It is of important values in theoretical studies and practical engineering applications of arbitrarily V-shaped groove guide for millimeter waves.
Using method of moment, the single mode bandwidth properties of arbitrarily trapezoidal groove waveguide is obtained and discussed. There is a minimum of bandwidth along with inclination angle. It is of important values in theoretical studies and practical engineering applications of arbitrarily trapezoidal groove guide for millimeter waves.
A kind of asymmetric V ridge waveguide is presented. Variations of the cut-off wavelength, single-mode bandwidth with the ridge dimensions and the ridge position for different values of dielectric constant are investigated in detail. The field patterns of the dominant are presented. The correctness of the numerical results is verified. The results provide an extension to the existing design data for...
microwave cavity with complicated structure dielectric and hollow center is investigated by mode matching method. By deducing eigen equation and calculating resonant frequencies of TM0 mode, main factors that influence resonant frequencies is studied. In addition, the resonant frequencies of TM0 mode is compared with commercial software (CST) results. The results show good agreement between computations...
In this paper, the mode matching method is used to analyze resonant characteristic of microwave resonant cavity loaded with complex structure dielectric in rubidium atomic frequency standard. By calculating the TE011 mode's resonant frequency and comparing with theoretical and simulation software (CST) results, the correctness of this method has been proved. Numerical results show that the resonant...
The scattering of target in dispersive soil is simulated under Gaussian pulse excitation. 2D PML perfectly matched layer (PML) absorbing boundary condition is proposed to truncate computation space for finite-element time-domain (FETD) in dispersive media. Numerical examples show that the proposed PML-FETD approach has small reflection errors and no late-time instability for simulations. The PML formulations...
A new kind of V-ridge waveguide is presented in this paper. The transmission problem is solved by edge element for the first time. The field patterns of the waveguide with single, double and triple V-ridge for different values of dielectric constant have been presented. Variations of the cutoff wavelength, single-mode bandwidth with the ridge dimensions for different values of dielectric constant...
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