Electromagnetic waves · 2005 · 12 citations · 1 references
EngineeringComputational EngineeringElectrical EngineeringAntennasComputational ElectromagneticsMicrowave EngineeringMicrostrip CircuitsMicrowave AntennasMicrowave Device SimulationMicrowave ResonatorsResonance In CircuitsResonant CircuitsMicrostrip ResonatorsMicrowave ModelingResonanceResonance FrequenciesResonant FrequencyResonator ModelingSeries ResonanceSeries Resonant Circuits
In this paper a novel method of generation of ultralow 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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