Proceedings ArticleDOI
A new high-power, dual-band, E-plane, ferrite circulator
Hadi Razavipour,Gholamreza Askari,Faezeh Fesharaki,Hamid Mirmohammad-Sadeghi +3 more
- pp 20-25
TLDR
In this article, the design, simulation and enhancing performance of a new structure for X-band high power, low loss, low bias, triangular-ferrite waveguide circulator is presented.Abstract:
The design, simulation and enhancing performance of a new structure for X-band high-power, low-loss, low-bias, triangular-ferrite waveguide circulator is presented. Dual circulation property is obtained by triangular shape of ferrite post. The effects of circulator's structure parameters, such as ferrite parameters and magnetic DC bias, on isolation, insertion loss and return loss of circulator are discussed. 20dB return loss, 20dB isolation and 0.1 dB insertion loss in dual frequency in X-band (8.2 Ghz & 10.4 Ghz) with only a magnetic bias of 10 Oe are obtained from CST Microwave Studio and Ansoft HFSS simulations which have good agreement to each other and shows remarkable response of those type of circulators.read more
Citations
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Journal ArticleDOI
New Concept Validation of Low-Loss Dual-Band Stripline Circulator
TL;DR: A new design methodology of dual-band stripline circulator for wireless communications applications based on studying both fundamental and upper resonant modes within ferrite disks is proposed.
Proceedings ArticleDOI
Design of X-band H-plane waveguide Y-junction circulator
Xueling Li,En Li,Gaofeng Guo +2 more
TL;DR: In this article, a three-port H-plane waveguide Y-junction circulator with two partial height ferrite posts in the junction region was proposed for microwave measurement.
Journal ArticleDOI
Dual-Band Ferrite Circulators Operating on Weak Field Conditions: Design Methodology and Bandwidths’ Improvement
Vincent Olivier,Laure Huitema,Bertrand Lenoir,Hamza Turki,Christophe Breuil,Philippe Pouliguen,Thierry Monediere +6 more
TL;DR: In this article, the fundamental and upper eigenmodes of a ferrite cavity were used to demonstrate a dual-band stripline circulator with weak field operation for increasing circulation bandwidths.
Proceedings ArticleDOI
Methodology to develop a low-loss dual-band stripline circulator
TL;DR: In this paper, a dual-band stripline circulator was developed by studying resonant modes within ferrite disks, and it was shown that it is possible to couple simultaneously both fundamental and upper modes in order to obtain a circulation's operation at two distinct frequency bands.
Mode charts of E-plane circulators
TL;DR: In this paper, the aspect ratio of the gyromagnetic resonator and susceptance slope parameter of the junction are discussed in the case of the evanescent E-plane junction loaded by H-plane open HE/sub 11.5/ gyromagnetic resonators.
References
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The Dielectric Microwave Resonator
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TL;DR: In this paper, a frequency equation of first and second-order approximations was derived in terms of the dimensions and the anisotropic dielectric constant,??, for rectangular parallelepiped resonators.
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An efficient finite element solution of inhomogeneous anisotropic and lossy dielectric waveguides
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TL;DR: In this paper, an efficient finite element method is presented for the full wave analysis of dielectric waveguides with arbitrary shape cross section, inhomogeneity, transverse-anisotropy, and significant loss (or gain).
Journal ArticleDOI
General Field Theory Treatment of H-Plane Waveguide Junction Circulators
TL;DR: In this article, an exact field theory treatment for the waveguide junction circulators is presented, being dependent on neither the geometrical symmetry of the junction nor the number of ports.
Journal ArticleDOI
An alternative approach to FD-TD analysis of magnetized ferrites
W.K. Gwarek,A. Moryc +1 more
TL;DR: In this paper, a new approach to the finite difference-time domain (FD-TD) analysis of magnetized ferrites is presented, where an equivalent lumped circuit of an FD-TD cell filled with such a medium is developed.