Title :
Dual-band VCO using composite right/left-handed transmission line and tunable negative resistance based on pin diode
Author :
Choi, Jaewon ; Seo, Chulhun
Author_Institution :
School of Electronic Engineering, Soongsil University, Sangdo-dong, Dongjak-ku, Seoul 156-743 Korea
Abstract :
In this paper, the dual-band voltage-controlled oscillator (VCO) using the composite right/left-handed (CRLH) transmission line (TL) and the tunable negative resistance based on the pin diode is presented. It is demonstrated that the CRLH TL can lead to metamaterial transmission line with the dual-band tuning. The dual-band of the CRLH TL is achieved by the frequency offset and the phase slope of the CRLH TL. The tunable negative resistance based on the pin diode has been used to operate the dual-band of VCO. The phase noise of VCO is -108.34 ~ -106.67 dBc/Hz @ 100 kHz in the tuning range, 2.423 ~ 2.597 GHz for the forward bias of the pin diode, whereas that of VCO is -114.16 ~ -113.33 dBc/Hz @ 100 kHz in the tuning range, 5.137 ~ 5.354 GHz for the reverse bias of the pin diode.
Keywords :
metamaterials; p-i-n diodes; phase noise; transmission lines; voltage-controlled oscillators; composite right/left-handed transmission line; dual-band tuning; dual-band voltage-controlled oscillator; frequency 100 kHz; frequency 2.597 GHz to 2.423 GHz; frequency 5.354 GHz to 5.137 GHz; metamaterial transmission line; phase noise; pin diode; reverse bias; tunable negative resistance; Capacitance; Dual band; Frequency; Inductance; Metamaterials; Power transmission lines; Shunt (electrical); Transmission lines; Tuning; Voltage-controlled oscillators; Dual-band VCO; composite right/left-handed transmission line; metamaterial; phase noise; tunable negative resistance;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633148
