Journal ArticleDOI
Planar Triangular Resonators with Magnetic Walls
Joseph Helszajn,D.S. James +1 more
TLDR
In this paper, the field patterns in triangular planar resonators with magnetic boundary conditions are given by duality from the TE modes with electric boundaries, and the performance of a microstrip circulator using a triangular resonator is also described.Abstract:
This paper gives the field patterns in triangular planar resonators having no variation of the fields along the substrate thickness. The TM fields in such resonators with magnetic boundary conditions are obtained by duality from the TE modes with electric boundaries. The theoretical description includes the cutoff numbers of the first few modes. The radiation Q factor of fundamental microstrip resonators of this type was found experimentally to be higher than that associated with conventional disk resonators. The performance of a microstrip circulator using a triangular resonator is also described.read more
Citations
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Book
Tabu Search
Fred Glover,Manuel Laguna +1 more
TL;DR: This book explores the meta-heuristics approach called tabu search, which is dramatically changing the authors' ability to solve a host of problems that stretch over the realms of resource planning, telecommunications, VLSI design, financial analysis, scheduling, spaceplanning, energy distribution, molecular engineering, logistics, pattern classification, flexible manufacturing, waste management,mineral exploration, biomedical analysis, environmental conservation and scores of other problems.
Journal ArticleDOI
Theory and experiment of dual-mode microstrip triangular patch resonators and filters
Jia-Sheng Hong,Shuzhou Li +1 more
TL;DR: In this article, the authors report on the results of an investigation into dual-mode operation of microstrip triangular patch resonators and their applications for designing dualmode bandpass filters.
Journal ArticleDOI
Wide-band truncated tetrahedron dielectric resonator antenna excited by a coaxial probe
TL;DR: In this article, a truncated tetrahedron dielectric resonator antenna is examined numerically and experimentally for the impedance match and the radiation patterns of the antenna.
Journal ArticleDOI
Characteristics of the equilateral triangular patch antenna
TL;DR: The results of a comprehensive analysis of this antenna based on the cavity model with a coaxial feed source are given in this paper, and the theoretical formulas are given, and the characteristics obtained from them are presented, including radiation patterns, percentages of power radiated, total Q-factors, input impedances, and their variations with feed position.
Journal ArticleDOI
On the resonant frequencies of the triangular patch antenna
J. S. Dahele,Kai Lee +1 more
TL;DR: In this paper, the appropriate correction factor to use in the resonant frequency formula of an equilateral triangular patch antenna obtained from the cavity model with perfect magnetic walls is discussed, and the appropriate error correction factor for an EAF with a perfect magnetic wall is discussed.
References
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Journal ArticleDOI
Circular resonant structures in microstrip
TL;DR: In this paper, the mode patterns of circular disc resonant sections are analyzed and the radiation losses are expected to be small for the dominant mode, which would therefore have the highest Q value.
Journal ArticleDOI
Loss Considerations for Microstrip Resonators (Short Papers)
E. Belohoubek,E.J. Denlinger +1 more
TL;DR: In this paper, the influence of radiation losses on the Q of microstrip resonators is shown for a variety of frequencies, characteristic impedances, substrate materials, and thicknesses, especially for low-impedance lines and thick substrates with a low dielectric constant.
Journal ArticleDOI
Operation Modes of a Waveguide Y Circulator (Short Papers)
TL;DR: In this paper, the operation modes of a waveguide Y circulator with a circular and a triangular ferrite post were investigated both theoretically and experimentally, taking into account the field variation along the ferrite axis.
Journal ArticleDOI
Coupling Holes Between Resonant Cavities or Wave-Guides Evaluated in Terms of Volume Ratios
TL;DR: In this paper, a hole in a common wall is used to provide coupling between two resonant cavities (k=coefficient of coupling) or between two waveguides (x or b=normalized reactance or susceptance) between cavity and waveguide (p=loading power factor of cavity).
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Theory and experiment of dual-mode microstrip triangular patch resonators and filters
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