一种低相位噪声的毫米波压控振荡器  

A Low Phase Noise Millimeter Wave Voltage Controlled Oscillator

作　　者：刘武广[1] 王增双 Liu Wuguang;Wang Zengshuang(The 29^(th)Research Institute,CETC,Chengdu 610036,China;The 13^(th)Research Institute,CETC,Shijiazhuang 050051,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036 [2]中国电子科技集团公司第十三研究所,石家庄050051

出　　处：《半导体技术》2021年第9期686-689,743,共5页Semiconductor Technology

摘　　要：基于推推振荡器结构设计了一种低相位噪声的毫米波压控振荡器,相比传统采用直接振荡和倍频实现的振荡器,该振荡器具有体积小、相位噪声低及电路简单等优点。振荡器中的谐振电路采用多级串联谐振,电感采用微带线的形式,提高了谐振器的品质因数,进而降低了振荡器的相位噪声,且在谐振电路通过微带耦合方式实现了基频输出。基于GaAs异质结双极晶体管(HBT)工艺对振荡器进行了设计和流片,芯片尺寸为1.8 mm×1.4 mm。在5 V工作电压和0~13 V调谐电压条件下,振荡器的输出频率为42.1~46.2 GHz,电流为120 mA,输出功率为1 dBm, 1/2次谐波抑制大于15 dB,相位噪声为-60 dBc/Hz@10 kHz、-85 dBc/Hz@100 kHz和-105 dBc/Hz@1 MHz。A millimeter wave voltage controlled oscillator(VCO) with low phase noise was designed based on the structure of the push-push oscillator.Compared with the conventional oscillation using direct oscillation and frequency doubling, it has the advantages of small size, low phase noise and simple circuit and so on.The resonant circuit of the oscillator with multi-stage series resonance and the inductor with the form of microstrip line improve the quality factor of the resonator and reduce the phase noise of the oscillator.In the resonant circuit, the fundamental frequency output was realized by microstrip coupling.The oscillator was designed and fabricated based on GaAs heterojunction bipolar transistor(HBT) technology.And the chip size is 1.8 mm×1.4 mm.Under the operating voltage of 5 V and tuning voltage range of 0-13 V,the output frequency of the oscillator is 42.1-46.2 GHz, the current is 120 mA,the output power is 1 dBm, the 1/2 harmonic suppression is more than 15 dB,and the phase noises are-60 dBc/Hz@10 kHz,-85 dBc/Hz@100 kHz and-105 dBc/Hz@1 MHz.

关 键 词：推推振荡器 低相位噪声 毫米波 异质结双极晶体管(HBT) 单片微波集成电路(MMIC) 

分 类 号：TN43[电子电信—微电子学与固体电子学] TN752