Dual coupled X-band VCO using microstrip square multiple spiral resonator for composite metamaterials

Author

Kim, Yang-hyun ; Shin, Doosoub ; Ha, Sung-Jae ; Lee, Bok-Hyung ; Seo, Chulhun

Author_Institution

Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

1715

Lastpage

1718

Abstract

A novel voltage controlled oscillator (VCO) using the microstrip square multiple spiral resonator for reducing the phase noise of VCO. Compared with the conventional microstrip square spiral resonator, the microstrip square multiple spiral resonators has strong coupling between the microstrips of the line with the multiple spiral resonator, which makes for a high Q value of the resonator. The phase noise and the tuning range of the proposed VCO are -115.0 ~ -117.34 dBc/Hz at 100 kHz and 8.935 ~ 9.4 GHz. Transmission and reflection properties of metamaterials composed line and square spiral have been simulated and compared with conventional metamaterials. The center frequency and transmission bandwidth of metamaterials have been varied through tuning of spiral resonator.

Keywords

composite materials; metamaterials; microstrip resonators; phase noise; voltage-controlled oscillators; composite metamaterials; dual coupled X-Band VCO; frequency 100 kHz; frequency 9.4 GHz; microstrip square multiple spiral resonator; phase noise; voltage controlled oscillator; Acoustic reflection; Bandwidth; Couplings; Frequency; Metamaterials; Microstrip resonators; Phase noise; Spirals; Tuning; Voltage-controlled oscillators; Spiral ring resonator; VCO; coupling coefficient; metamaterials; microstrip square multiple spiral resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. APMC 2009. Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-2801-4

Electronic_ISBN

978-1-4244-2802-1

Type

conf

DOI

10.1109/APMC.2009.5384285

Filename

5384285