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

Volume

24

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

622

Lastpage

624

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);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2330502

Filename

6843360