Design of Ferrite Differential Phase Shift Sections

Boyd, C.R.

doi:10.1109/mwsym.1975.1123346

Cited by 18 publications

(13 citation statements)

References 5 publications

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“…For "weak " and "strong" bias magnetic field the elements of the permeability tensor µ, µ a are well determined in [2].…”

Section: Permeability Tensormentioning

confidence: 99%

“…Then, owing to the relation (10) the total electric field is given by Assume that the ferrite guide is excited at the plane z = 0 by left hand circularly polarized LHCP wave described as superposition of two linearly polarized base waves. With this input wave the initial conditions at the input plane are given by E(z = 0) = e + = e 1 + je 2 and…”

Section: Operation Principlesmentioning

confidence: 99%

“…Although using ferrite transmission line model [1] and basing on the experimental experiences Boyd et al reviewed the principle of operation [2,3] and design relationship and construction of these devices [4,5], a satisfactory physical model describing clearly their operation properties has not been achieved yet. The purpose of this paper is an alternative approach using the coupled mode method [6] to the explanation of the operation principles of such ferrite structures.…”

Section: Introductionmentioning

confidence: 99%

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Propagation in a Ferrite Circular Waveguide Magnetized Through a Rotary Four-Pole Magnetic Field

Mazur¹,

Sędek²,

Mazur³

2007

PIER

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Abstract-The coupled mode approach is applied to the ferrite circular waveguide magnetized through a rotary four-pole transverse bias magnetic fields. The plausible mathematical model of the ferrite waves propagation in the guide is developed which includes gyromagnetic interaction of two orthogonal TE 11 isotropic modes. The importance of the birefringence effect in determining of phase shift and polarization phenomena are thereby demonstrated. As a result basic design consideration of the circular polarizer applied as a "half-wave plate" in rotary-field phase shifter are provided.

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“…For "weak " and "strong" bias magnetic field the elements of the permeability tensor µ, µ a are well determined in [2].…”

Section: Permeability Tensormentioning

confidence: 99%

Section: Operation Principlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Propagation in a Ferrite Circular Waveguide Magnetized Through a Rotary Four-Pole Magnetic Field

Mazur¹,

Sędek²,

Mazur³

2007

PIER

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show abstract

“…The phase shift section comprises of a metallised ferrite rod and a ferrite yoke placed over this rod. Each of these elements involves design considerations and in-depth trade-offs for achieving an optimum phase shifter design using mathematical formulae [2][3][4] . Advanced softwares are also being used to design and simulate the passive RF devices.…”

Section: Virtual Prototyping and Development Of Rotary Field Ferrite mentioning

confidence: 99%

Virtual Prototyping and Development of Rotary Field Ferrite Phase Shifter

Aggarwal

Matheru

2016

Def. Sc. Jl.

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Review of the virtual prototyping and physical development of the rotary field ferrite phase shifter is presented. A description of the basic principle of operation of the rotary field ferrite phase shifter has been given along with the key aspects about the design and virtual prototyping of various parts of the phase shifter viz ferrite rod, yoke, polarisers and matching section using HFSS and 3-D Maxwell softwares. Calibrated simulation performance of the phase shifters is presented and it shows good agreement with physical measurement results. Three prototypes and one hundred production capable phase shifter modules were fabricated, functionally tested and RF characterised. This is an indigenous development of the physical prototypes of rotary field class of ferrite phase shifters of C-band. This class of ferrite phase shifters finds application in phased array radars, such as battery level radar and weapon locating radar, because of its high phase accuracy and high power handling capability.

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“…Fixed nonreciprocal quarter-wave plates are located beyond both ends of the phase shifting region. These elements use a transverse fourpole magnetic bias field [5] to produce a frequency-dependent differential phase of approximately 90 degrees, and convert between linearly polarized waves at the device terminals and the circularly polarized waves needed in the phase shifting region. The nonreciprocal quarter-wave plates generate opposite senses of circular polarization in the phase shifting region for the two directions of propagation.…”

Section: Introductionmentioning

confidence: 99%

Duplexing Ferrite Reciprocal Phase Shifters

Boyd

2005

IEEE MTT-S International Microwave Symposium Digest, 2005.

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The basic structure of microwave ferrite reciprocal phase shifters of the Dual-Mode and Rotary-Field types can readily be adapted to incorporate the function of a circulator outside the phase shifting region. The circulator effect is realized in the form of orthogonal polarization of waves in the two directions of propagation in circular or square waveguide at the input of the device. A mode-separating waveguide junction is required to resolve these orthogonal modes into two single-mode waveguides.This paper presents specific implementations of duplexing ferrite reciprocal phase shifters, comments on the factors affecting the isolation of the equivalent-circuit circulator, and discusses possible advantages in antenna system applications.

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Design of Ferrite Differential Phase Shift Sections

Cited by 18 publications

References 5 publications

Propagation in a Ferrite Circular Waveguide Magnetized Through a Rotary Four-Pole Magnetic Field

Propagation in a Ferrite Circular Waveguide Magnetized Through a Rotary Four-Pole Magnetic Field

Virtual Prototyping and Development of Rotary Field Ferrite Phase Shifter

Duplexing Ferrite Reciprocal Phase Shifters

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