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

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,...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2014-01, Vol.24 (1), p.44-46
Hauptverfasser:	MOON, Byeong-Taek, MYUNG, Noh-Hoon
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Composite right/left-handed transmission line (CRLH TL) Electric, optical and optoelectronic circuits Electronic tubes, masers Electronics Exact sciences and technology Microwave circuits Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwave integrated circuits microwave oscillator Microwave oscillators Phase noise quality factor Resonant frequency resonator
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Beschreibung
Zusammenfassung:	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.
ISSN:	1531-1309 1558-1764
DOI:	10.1109/LMWC.2013.2287234