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This paper presents, design and simulation of a Tunable Ring Resonator (TRR). The resonance frequency of the resonator can be tuned by varying the bias voltage of varactor diode. This resonator can be tuned from 3.67 GHz to 4.34 GHz with approximately 7.5% of bandwidth and shows good return loss. The TRR structure has ease of frequent fabrication with accurate results. The proposed TRR can be used...
Transistor oscillators with planar micro strip resonators as frequency determining elements are widely used as stable sources for microwave systems because of their easier implementation, smaller size and lower cost. In this paper, two negative resistance oscillators are discussed using different micro strip resonators. First oscillator is designed using λg/2 resonator. Oscillator has measured output...
In the paper, a microwave oscillator and a voltage-controlled oscillator (VCO) are developed using the compact T-equivalent ring resonator and a wideband harmonic suppressed network. The compact T-equivalent ring resonator has a wide stopband to suppress the 2nd and 3rd harmonic of the oscillator. It also takes the advantage of easy extension to a tunable resonator, and then applies to implement a...
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