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Microwave Conference Proceedings, 1993. APMC '93., 1993 Asia-Pacific

Date 18-21 Oct. 1993

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  • APMC '93 - 1993 Asia-Pacific Microwave Conference Proceedings [front matter]

    Publication Year: 1993, Page(s):0_1 - III
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    Freely Available from IEEE
  • Depolarization properties of a chiral coated dielectric cylinder with application to RCS reduction

    Publication Year: 1993, Page(s):10-5 - 10-8 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The depolarization properties of the electromagnetic wave scattered from a chiral coated dielectric cylinder are extensively studied. Electric fields inside and outside the circular cylinder are expanded in terms of vector wave functions to obtain the scattered field. Cross- and co-polarized echo widths and one of the normalized Stokes parameters of the scattered wave are computed for the incident... View full abstract»

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  • Coupling of RF current to magnetostatic forward volume wave modes in straight edge resonators

    Publication Year: 1993, Page(s):10-33 - 10-36 vol.2
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    The coupling of RF current in a strip transducer to magnetostatic forward volume wave modes in a one-port straight edge resonator is discussed in terms of input impedance. As results, the coupling strength is proportional to the operating frequency and some material parameters, such as saturation magnetization (Ms), YIG film thickness and the inversion of linewidth (/ΔH). Further analyses de... View full abstract»

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  • Analysis of multilayered periodic structures with anisotropic media

    Publication Year: 1993, Page(s):10-41 - 10-44 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    An analytical method is presented for the plane wave scattering by periodic structures by using the extended spectral domain approach (ESDA). The effect of the finite metallization thickness of the periodic gratings can be taken into consideration, and the structures with multilayered anisotropic media can be treated easily. Accuracy and efficiency of the method is demonstrated by numerical comput... View full abstract»

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  • Reflection of magnetostatic surface waves by a metal half-plane

    Publication Year: 1993, Page(s):10-21 - 10-24 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    Reflection of magnetostatic surface wave (MSSW) from a metal half-plane on the surface of an yttrium iron garnet (YIG) film grown on a gadolinium gallium garnet (GGG) substrate is investigated using the full Maxwell's equations. The GGG substrate is backed with a ground plane. The problem is formulated as a Fourier integral in terms of the surface current density on the metal plate. Expansion of b... View full abstract»

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  • Analysis of slot lines on ferrite substrate by the integral kernel expansion method

    Publication Year: 1993, Page(s):10-17 - 10-20 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    A slot line on a normally magnetized ferrite substrate has been analyzed, since this structure is expected to provide potential applications for nonreciprocal devices. Firstly, a dual integral equation for two tangential components of electric fields in the slot is derived and then the kernel expansion technique is applied to solve the equation. The dispersion relation obtained shows discontinuous... View full abstract»

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  • Frequency limits of MSSW in the film with two magnetic layers

    Publication Year: 1993, Page(s):10-29 - 10-32 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    The equations of the upper and the lower frequency limits of MSSW in a film with two magnetic layers have been given. The curves of limit varying with M01/M02 and the transfer points have been shown View full abstract»

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  • Large absorption effect of metal gratings

    Publication Year: 1993, Page(s):10-49 - 10-52 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    The scattering of plane wave by a metal grating is rigorously analyzed by incorporating the finite conductivity of metal strips as the imaginary part of a complex dielectric constant. The distributions of field within the metal strips are determined and the absorption of energy by the grating is evaluated. Numerical results are given to illustrate the effect of structure parameters, particularly f... View full abstract»

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  • A novel approach for analyzing the electromagnetic reflection from stratified anisotropic media

    Publication Year: 1993, Page(s):10-9 - 10-12 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    The authors present an analysis of plane-wave reflection from stratified anisotropic lossy media. To this end, an equivalent-transmission-line-circuit model is adopted in the frequency- and time-domain analysis. The reflection properties of graphite/epoxy, boron/epoxy, Kevlar/epoxy and their hybrid laminated composites are investigated in detail View full abstract»

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  • Numerical analysis of high-permittivity dielectric waveguide with periodic structure

    Publication Year: 1993, Page(s):10-37 - 10-40 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    The cylindrical dielectric waveguide with a periodically varying radius has been analyzed numerically. The leakage characteristics of the lowest TE-type wave are investigated for the high-permittivity cores. It is shown that the large leakage does not take place in the waveguide with high-permittivity core and the characteristics are influenced by the second lowest TE-type wave View full abstract»

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  • On the analysis of boxed planar lines with gyroelectric substrates

    Publication Year: 1993, Page(s):10-1 - 10-4 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    The spectral domain approach is used to analyze boxed microstrip lines and finlines in multilayered lossy substrates with gyroelectric properties. A method to obtain the spectral dyadic Green's function is reported. Asymptotic techniques are used to enhance convergence of the spectral series. The root searching process is improved using the properties of the analytical complex functions View full abstract»

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  • Directive antenna radiators and grating couplers based on grounded dielectric slab guide with finite periodic scatterers

    Publication Year: 1993, Page(s):10-45 - 10-48 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    The problem of scattering of open grounded dielectric slab's natural modes from a finite number of cylindrical screens is considered. The correct solution allowing one to calculate the conversion coefficients of eigen modes and radiated field pattern with any desired accuracy is derived. It is proposed that the considered structures be applied to the design of compact highly directive radiators in... View full abstract»

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  • An integral kernel expansion approach to analysis of reflection of magnetostatic surface waves by a microstrip

    Publication Year: 1993, Page(s):10-25 - 10-28 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    Reflection of magnetostatic surface waves (MSSWs) by an infinitely thin, perfectly conducting microstrip line on a ferrite substrate is analyzed using the integral kernel expansion method. With the help of the Fourier transform, an integral equation for the current density on the strip is derived. The integral kernel of the equation is expanded in terms of orthogonal polynomials to obtain a kind o... View full abstract»

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  • On the thickness effect of the ferrite substrate in the microstrip line

    Publication Year: 1993, Page(s):10-13 - 10-16 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    The thickness effect of the ferrite substrate on the strip line has been studied both theoretically and experimentally. It is found that the second edge guided mode significantly depends on the thickness of the substrate, on the other hand the magnetostatic wave modes with the large wave number strongly depend on the thickness of the substrate. Finally, their theoretical result has been confirmed ... View full abstract»

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