Wideband VCO with triple tuned circuits in C-Ku band

被引：5
|
作者：
Tsuru, M [1 ]
Kawakami, K [1 ]
Tajima, K [1 ]
机构：
[1] Mitsubishi Electr Corp, Kamakura, Kanagawa 2478501, Japan
来源：
2005 IEEE MTT-S International Microwave Symposium, Vols 1-4 | 2005年
关键词：
Voltage Controlled Oscillators; tunable circuits and devices; varactors; flip-chip devices; broadband communication; radar applications;
D O I：
10.1109/MWSYM.2005.1517038
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes a wide-band Voltage Controlled Oscillator (VCO) with the triple oscillation bandwidth and a better flatness of the phase noise in the oscillation bandwidth using triple varactor-tuned circuits. Altering capacitances of varactor diodes connected to every ports of a HBT in the same direction, the oscillation bandwidth of more than 1.5 octaves has been obtained. A fabricated VCO employing the triple-tuned circuits and a GaAs HBT has covered 1.56 octaves bandwidth achieving the phase noise of -114.9 dBc/Hz +/- 2.9 dB at 1 MHz offset from the carrier and the output power of 3.4 dBm +/- 2 dB in C-Ku band.
引用
收藏
页码：1685 / 1688
页数：4
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