volume | PIER Journals

2004-10-12

Loaded Microstrip Disk Resonator Exhibits Ultra-Low Frequency Resonance

Tapas Chakravarty,

Dr. Tapas Chakravarty

TCS Research

India

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Sushim Roy,

Dr. Sushim Roy

Department of Electronics & Telecommunication Engineering

Bengal Engineering college

India

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Salil Sanyal,

Dr. Salil Sanyal

Department of Electronics & Telecom Engineering

Jadavpur University

India

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Asok De

Professor Asok De

Department of Electronics & Communication Engineering

Ambedkar Institute for Advanced Communication Technology & Research

India

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, Vol. 50, 1-12, 2005

doi:10.2528/PIER04042601 | Google Scholar

Abstract

In this paper a novel method of generation of ultra-low resonance in a microstrip disk resonator is presented. The disk resonator is loaded with series L-C circuit across a selective location in the disk via a thin shorting pin. It is shown that in loaded disk resonator, the lowest resonance observed is in VHF range whereas the unloaded disk had a fundamental resonance at 1.76 GHz. This resonance is slightly offset from the series resonant frequency of L-C circuit. and it depends on the disk radius as well. Using IE3D, a commercial MoM solver, the said structure is simulated. The experimental results agree well with the simulated results. A closed form expression for computing the resonant frequency is given.

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Tapas Chakravarty, Sushim Roy, Salil Sanyal, and Asok De, "Loaded Microstrip Disk Resonator Exhibits Ultra-Low Frequency Resonance," , Vol. 50, 1-12, 2005.
doi:10.2528/PIER04042601

References

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