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In this article, an oscillator (OSC) in X-band with a double H-shape metamaterial resonator (DHMR) based on high-Q is proposed with metamaterial (MTM) structure to improve the phase noise and the output power. The proposed OSC has been exhibited low phase noise and high output power for good performance of the frequency synthesizer. The DHMR is designed to be high-Q at resonance frequency through...
A voltage-controlled oscillator (VCO) using tunable metamaterial transmission line based on varactor-loaded split-ring resonator (VLSRR) is presented to enhance the tuning range and reduce the phase noise. It is demonstrated that VLSRR coupled to microstrip line can lead to metamaterial transmission line with tuning capability. The negative effective permeability is provided by VLSRR in a narrow band...
The microstrip square open loop resonator has been employed to reduce the phase noise in the oscillator. The square open loop resonator has a large coupling coefficient value, which makes a high Q value, and has reduced the phase noise of the oscillator. This oscillator has presented the oscillation frequency of 5.84 GHz and the phase noise of -113.17 dBc/Hz at an offset frequency of 100 kHz. The...
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