Journal ArticleDOI
Broadband microstrip junction circulators
D. Masse
- Vol. 56, Iss: 3, pp 352-353
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TLDR
In this paper, two microstrip junction circulators have been designed and built for a VSWR less than 1.25 and the maximun insertion loss is 0.4 dB at S-band and 0.6 dB at X-band.Abstract:
Two microstrip junction circulators have been designed and built. Bandwidths of 25 percent at S-band and 32 percent at X-band have been obtained for a VSWR less than 1.25. The maximun insertion loss is 0.4 dB at S-band and 0.6 dB at X-band.read more
Citations
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Journal ArticleDOI
Wide-Band Operation of Microstrip Circulators
Y.S. Wu,F.J. Rosenbaum +1 more
TL;DR: In this article, an analysis of the input impedance and an approximate equivalent circuit for the Y-junction circulator is presented, which shows the relationship between Bosma's equivalent circuit and that of Fay and Comstock.
Proceedings ArticleDOI
Wideband Operation of Microstrip Circulators
Y.S. Wu,F.J. Rosenbaum +1 more
TL;DR: Theoretical and experimental results as mentioned in this paper show that wide coupling lines and a smaller than usual disk radius can be used to obtain wideband operation in 3-port Y-junction microstrip circulators.
Journal ArticleDOI
The Frequency Behavior of Stripline Circulator Junctions
TL;DR: In this paper, the frequency dependence of the circulation equations for Y-junction stripline and microstrip circulators is investigated, and a new set of design curves is generated for the frequency-independent forms of circulation condition's roots for both below-and above-resonance cases.
Journal ArticleDOI
Design of Partial Height Ferrite Waveguide Circulators (Short Papers)
TL;DR: In this article, a design procedure for the widely used three-port waveguide circulator that has a partial height ferrite post in the junction region is presented, and the design formulas and curves are derived for two configurations of partial height circulators: one has a short circuit at one end, while the other has dielectric spacers at both ends.
Book
The Stripline Circulator: Theory and Practice
TL;DR: In this paper, a complex gyrator circuit of a Weakly Magnetized Junction Circulator (WMJC) is described, and the degree-2 Circulator Gap effects in Circulator Assemblies Suspended Planar Resonator Passband Frequencies of a Three-Port Junction in Immittance Plane Open Walls Spinwave Instability in Magnetic Insulators Frequency Doubling in Ferrites Second-Order Intermodulation in Magnetic insulators Temperature Stability of Magnetic Insulator Below the Kittel Line Third-Order intermodulation Products in Nonlinear Devices in Non Linear Devices
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
All-garnet-substrate microstrip circulators
TL;DR: In this article, a microstrip circulator fabricated on an all-garnet substrate is presented, which involves only evaporation of copper lines, disk, and ground plane on the substrate.
Proceedings ArticleDOI
Microwave integrated circulators
TL;DR: In this article, the results of several integrated circulators built in microstrip transmission line are presented, which are of the symmetric junction variety and utilize polycrystalline magnesium-manganese ferrites.