Operation of the Ferrite Junction Circulator

Fay, C.E.; Comstock, R. L.

doi:10.1109/tmtt.1965.1125923

Cited by 394 publications

(116 citation statements)

References 8 publications

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“…The wave equation, equation (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15), will be solved by a·ssuming that · Ez(r, ¢) = R(r) ~ (¢) (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) where R(r) is a function of r alone, and ~(¢) depends only upon cp. This approach is the standard "s~paration of variables" technique.…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

“…Substituting.Ez = R~ into the wave equation yields (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) or by division .·by R~/r and rearrang~ment,…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

“…Since the left side of equation (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)) is a function of r alone and the. right side is dependent only upon cp, both sides must be equal to a constant, caileq the separation constant.…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

“…right side is dependent only upon cp, both sides must be equal to a constant, caileq the separation constant. For convenience, t~is constant will be taken as n 2 , so that two·· ordinary differential equations, one in r and one in cp, are pro~uced from equation (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19). .…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

“…~3 of equation (2-34). Also, ·experiment (Fay and Comstock, 1965) shows that circulator operation· ·requires that two split modes, +n and -n, for some n, must predominate in the internal £ield distribution of the circulator.…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

See 4 more Smart Citations

Design Considerations in the Production of Stripline Ferrite Circulators.

Kaufman¹,

Taylor²

1970

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Section: Solution Of the Wave Equationmentioning

confidence: 99%

“…Substituting.Ez = R~ into the wave equation yields (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) or by division .·by R~/r and rearrang~ment,…”

Section: Solution Of the Wave Equationmentioning

confidence: 99%

Section: Solution Of the Wave Equationmentioning

confidence: 99%

Section: Solution Of the Wave Equationmentioning

confidence: 99%

Section: Solution Of the Wave Equationmentioning

confidence: 99%

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Design Considerations in the Production of Stripline Ferrite Circulators.

Kaufman¹,

Taylor²

1970

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Ferrite Circulators

Yung¹,

Wang²,

Chen³

2005

Encyclopedia of RF and Microwave Engineering

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The circulator is one of the elementary building blocks in radiofrequency and microwave circuits. It is used extensively in making basic devices for communications and radar systems. The latter are often used in broadband and high‐power rating systems at microwave and millimeter‐wave frequencies. It is, however, seldom found in consumer products because some of its functions can be performed by simpler and cheaper alternatives. However, interest in circulators has been revitalized with the emergence of mobile communications in recent years. As more and more users are accustomed to the freedom provided by cellular phones, communication without the constraint of an attached wire is considered as natural as breathing air. In addressing the ever‐increasing public demands, numerous wireless systems have been launched and more are coming. The most notable ones are wireless local‐area network, wireless local subscriber loops, and other high‐bit‐rate yet low‐error‐rate systems of data transmission. For these systems, the overlooked circulator enjoys a competitive edge as most active switches could not deliver the needed power rating and bandwidth at a reasonable price, especially those in the ultra high frequency band and beyond.

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Electromagnetic Materials

Choudhury

Singh

2005

Encyclopedia of RF and Microwave Engineering

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This article describes the electromagnetic properties of the medium or material in which the process of electromagnetics takes place. The introductory part discusses the evolution of electromagnetics based on theories and experiments by the pioneering scientists. The following portions of the article deal with the different types of materials, including isotropic dielectrics, conductors, semiconductors, superconductors, anisotropic dielectrics, and electrooptic materials. The fundamentals of magnetic materials are described in slightly greater detail, explaining the mechanisms of magnetization and special materials such as ferrites. Bianisotropic materials and their constitutive equations are also discussed. Here the focus is on some of the fundamental aspects of the constitutive characterization of bianisotropic media. The last two sections describe the basics and important applications of the phenomena of magnetostriction and piezoelectricity.

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Operation of the Ferrite Junction Circulator

Cited by 394 publications

References 8 publications

Design Considerations in the Production of Stripline Ferrite Circulators.

Design Considerations in the Production of Stripline Ferrite Circulators.

Ferrite Circulators

Electromagnetic Materials

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