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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-05-09
Improved Spurious Free Performance of Multi-Layer Multipermittivity Dielectric Resonator in MIC Environment
By
Raghvendra Kumar Chaudhary,

    Prof. Raghvendra Kumar Chaudhary

    Department of Electronics Engineering

    IIT(ISM) Dhanbad

    India

    Homepage

Vishwa V. Mishra,

    Dr. Vishwa V. Mishra

    Department of Electrical Engineering

    Indian Institute of Technology Kanpur

    India

    Homepage

Kumar Vaibhav Srivastava,

    Professor Kumar Vaibhav Srivastava

    Indian Institute of Technology

    India

    Homepage

Animesh Biswas

    Dr. Animesh Biswas

    Department of Electrical Engineering

    Indian Institute of Technology Kanpur

    India

    Homepage

Progress In Electromagnetics Research B, Vol. 30, 135-156, 2011
doi:10.2528/PIERB11032908 | Google Scholar

Abstract
In this paper, a novel approach has been suggested to obtain an improved spurious-free window for dielectric resonator in microwave integrated circuit environment. In microwave integrated circuit environment, the dielectric resonator placed on a thin dielectric substrate gets located asymmetrically with respect to its shielding enclosure. A reduced separation in frequencies (mode separation) is one of a consequence of this asymmetry that may become a cause of spurious modes. This adverse influence of asymmetry is sought to be compensated by proposing a multi-layer multi-permittivity dielectric resonator structure with several layers of differing permittivity. The suggested approach takes advantage of the fact that the mode separation of a dielectric resonator configuration can be correlated to relevant resonance mode fields. By perturbing the resonance mode fields through the suggested multi-layer multi-permittivity approach, the adverse influence of asymmetry is found to reduce considerably over a comparative conventional ring dielectric resonator in microwave integrated circuit configuration. Still more improvement in mode separation are shown when the shape of the multi-layer multi-permittivity ring dielectric resonator is further modified, suggesting a scope for optimization in present approach.
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Citation
Raghvendra Kumar Chaudhary, Vishwa V. Mishra, Kumar Vaibhav Srivastava, and Animesh Biswas, "Improved Spurious Free Performance of Multi-Layer Multipermittivity Dielectric Resonator in MIC Environment," Progress In Electromagnetics Research B, Vol. 30, 135-156, 2011.
doi:10.2528/PIERB11032908
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