Journal ArticleDOI
1-M W Four-Port E-Plane Junction Circulator (Correspondence)
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TLDR
In this article, an S-band four-port E-plane waveguide junction circulator has been developed that has a power-handling capability of 1-MW peak and 1-kW average.Abstract:
An S-band four-port E-plane waveguide junction circulator has been developed that has a power-handling capability of 1-MW peak and 1-kW average. Improved ferrite materials and dielectric matching techniques have resulted in a device having a high-power insertion loss of 0.5 dB and a biasing magnetic field of 400 G. The E-plane configuration lends itself to a compact lightweight circulator design having a high-power capability greater than the H-plane configuration, since RF breakdown problems are alleviated by locating the ferrite in the region of minimum RF electric field. The final device requires approximately one-tenth the amount of ferrite and permanent magnet material used in comparable differential phase-shift circulators. The size and weight are reduced by a factor of approximately 5.read more
Citations
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Journal ArticleDOI
General Field Theory Treatment of E-Plane Waveguide Junction Circulators---Part I: Full-Height Ferrite Configuration
TL;DR: In this article, an exact field theory treatment for the N-port E-plane full-height ferrite rod junction circulators is presented, where field expressions are written in each region of the junction in the form of infinite modes, and point matching of the fields at the common boundaries is used to get a set of infinite nonhomogeneous equations in these mode amplitudes.
Journal ArticleDOI
An Annotated Bibliography of Microwave Circulators and Isolators: 1968-1975
TL;DR: A bibliography of microwave circulators and isolators from 1968 to 1975 is presented in this paper, where some observations on selected topics are made, such as microwave power and microwave power control.
Journal ArticleDOI
Equivalent Circuit Representation for the E-Plane Circulator
TL;DR: In this article, the resonator structure employed in an E-plane circulator may be described by a series-resonant circuit as opposed to a parallel circuit in the case of comparable H-plane devices, resulting in a change of the direction of circulation at the edges of the circulator passband.
Proceedings ArticleDOI
A new high-power, dual-band, E-plane, ferrite circulator
TL;DR: 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.
Journal ArticleDOI
A Compact $E$ -Plane Four-Port Junction Circulator
TL;DR: In this article, a four-port gyromagnetic resonator is proposed, which consists of an X-shape waveguide junction, two X-shaped ferrite disks with fillets, and several matching metal posts.
References
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Journal ArticleDOI
Operation of the Ferrite Junction Circulator
C.E. Fay,R.L. Comstock +1 more
TL;DR: In this article, a detailed field theory of the strip-line Y-junction circulator operating with n = 1 is presented, and experiments designed to confirm the validity of the rotating normal mode description of circulator action are presented; these include measurements of mode frequencies and electric field patterns.
Journal ArticleDOI
The Synthesis of Symmetrical Waveguide Circulators
TL;DR: In this paper, a method for synthesizing symmetrical waveguide circulators by adjusting the eigenvalues of the scattering matrix is described, particularly useful for the design of very compact circulators in the form of waveguide junctions containing ferrite obstacles.
Journal ArticleDOI
E-Plane 3-Port X-Band Waveguide Circulators (Correspondence)
L.E. Davis,S.R. Longley +1 more
TL;DR: In this paper, a very compact E-plane waveguide circulator was used to put in the dewar and a compromise may be necessary in choosing between a compact stripline circulator and a comparatively bulky H-plane circulator.
Proceedings ArticleDOI
A High Power, Y Junction, E-Plane Circulator
J.W. McGowan,W.H. Wright +1 more
TL;DR: In this article, a symmetrical E plane, Y junction circulator capable of handling in excess of 1/2 MW peak and 650W average power was developed for duplexer operatian at 9375 MHz.
Journal ArticleDOI
High-Power Y-Junction E-Plane Circulator (Correspondence)
W.H. Wright,J.W. McGowan +1 more