Title :
A 1.7–2.2 GHz Compact Low Phase-Noise VCO Using a Widely-Tuned SIW Resonator
Author :
Pourghorban Saghati, Ali ; Entesari, Kamran
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A 1.7-2.2 GHz low phase-noise voltage controlled oscillator (VCO) based on a widely-tuned substrate integrated waveguide (SIW) cavity resonator is presented. The frequency of the SIW resonator is tuned based on loading the cavity with three via posts and thus changing the field distribution inside the cavity. The widely-tunable SIW resonator is employed inside a reflective-type VCO structure resulting in a tuning range of 1.7-2.2 GHz ( ~ 26%) and a phase noise better than -109 dBc/Hz at a 100 kHz offset over the entire tuning range.
Keywords :
UHF oscillators; cavity resonators; circuit tuning; phase noise; substrate integrated waveguides; vias; voltage-controlled oscillators; SIW resonator frequency; compact low-phase-noise VCO; field distribution; frequency 1.7 GHz to 2.2 GHz; via posts; voltage controlled oscillator; widely-tuned SIW cavity resonator; widely-tuned substrate integrated waveguide cavity resonator; Cavity resonators; Frequency measurement; Phase noise; Resonant frequency; Tuning; Voltage-controlled oscillators; Phase noise; substrate integrated waveguide (SIW); tunable resonator; voltage controlled oscillator (VCO);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2330502
