Contributors, July, 1968

Allen, J.L.; Battershall, B.W.; Block, A.; Bura, P.; Burke, T.F.; Caulton, M.; Daly, D.A.; Emmons, S.P.; Gelnovatch, V.G.; Hair, H.A.; Hoffman, W.F.; Johnson, K.M.; Jones, S.; Keister, F.Z.; Knight, S.P.; Mao, S.; Mehal, E.W.; Opp, F.L.; Pan, Wen; Roome, G.T.; Stinehelfer, H.E.; Taft, D.R.; Vendelin, G.D.; Wacker, R.W.; Webster, W.M.; Yuan, Shanshan

doi:10.1109/tmtt.1968.1126726

Cited by 2 publications

(1 citation statement)

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“…While several different technologies have emerged over the years, such as semiconductor, ferroelectric, and microelectromechanical systems devices, ferrite phase shifters are still recognized for their exceptional insertion loss and high power handling capabilities. [1][2][3][4][5][6] For operation at microwave frequencies, low loss ferrites such as yttrium garnets and lithium spinels require strong magnetic bias fields that can be realized with a combination of permanent magnets and current driven coils. The magnitude of the magnetic bias field necessary to operate a ferrite device at high frequency can be greatly reduced if an anisotropic material, such as hexagonal Z-or Y-type ferrite, is utilized.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of wave propagation in Y- and Z-type hexaferrites for high frequency applications

Wang

Geiler

Harris

et al. 2010

Journal of Applied Physics

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In this work, we present a numerical approach for simulating wave propagation in unbounded domains which combines discontinuous Galerkin methods with arbitrary high order time integration (ADER-DG) and a stabilized modification of perfectly matched layers (PML). Here, the ADER-DG method is applied to Bérenger's formulation of PML. The instabilities caused by the original PML formulation are treated by a fractional step method that allows to monitor whether waves are damped in PML region. In grid cells where waves are amplified by the PML, the contribution of damping terms is neglected and auxiliary variables are reset. Results of 2D simulations in acoustic media with constant and discontinuous material parameters are presented to illustrate the performance of the method.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of wave propagation in Y- and Z-type hexaferrites for high frequency applications

Wang

Geiler

Harris

et al. 2010

Journal of Applied Physics

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Magnetism in Microwave Devices

Ridrigue

1969

Journal of Applied Physics

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The functions of ferrite components in advanced microwave systems are briefly outlined, and the principal requirements described. The successful development of these sophisticated devices is the cumulative result of contributions from many areas of basic research and technology. As an example of the dependence of device performance on diverse efforts, the status and evolution of ferromagnetic digital phasers are reviewed. In this instance, materials research, ceramic technology, methods of numerical analysis, and the understanding of basic damping mechanisms have all contributed to the realization of practical devices. The application of ferrite devices to microwave integrated circuits is also outlined and some recent experimental results given. Other new trends in the field of microwave ferrite devices are briefly mentioned, as are areas most in need of further research.

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Contributors, July, 1968

Cited by 2 publications

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Numerical simulation of wave propagation in Y- and Z-type hexaferrites for high frequency applications

Numerical simulation of wave propagation in Y- and Z-type hexaferrites for high frequency applications

Magnetism in Microwave Devices

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