Design of Low Phase-Noise Oscillator Based on a Hairpin-Shaped Resonator Using Composite Right/Left-Handed Transmission Line

Author

Byeong-Taek Moon ; Noh-Hoon Myung

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

Volume

24

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

44

Lastpage

46

Abstract

In this letter, a low phase-noise microwave oscillator based on a hairpin-shaped resonator (HSR) using a composite right/left-handed transmission line (CRLH TL) is proposed. The proposed HSR consists of the conventional transmission line (CTL) and the CRLH TL. In order to obtain the high- Q factor, an electric field is concentrated on the CRLH TL, and then the CRLH TL provides a low loss due to a slow wave effect. The proposed HSR has a very compact size of 0.105 λ_g ×0.19 λ_g. An oscillator based on the HSR was designed, fabricated and measured. At the oscillation frequency of 4.95 GHz, the measured phase noise is -120.5 dBc/Hz at 100 kHz offset with 4.93 dBm output power.

Keywords

metamaterials; microwave oscillators; resonators; transmission line theory; CRLH TL; CTL; HSR; composite right/left-handed transmission line; conventional transmission line; electric field; frequency 100 kHz; frequency 4.95 GHz; hairpin-shaped resonator; high-Q factor; low phase-noise microwave oscillator; low phase-noise oscillator design; Microwave circuits; Microwave integrated circuits; Microwave oscillators; Phase noise; Resonant frequency; Composite right/left-handed transmission line (CRLH TL); microwave oscillator; phase noise; quality factor; resonator;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2287234

Filename

6658963