摘要
提出了一种应用于K波段的下变频双平衡微波混频器,电路基于吉尔伯特结构并集合了两个片上巴伦转换器,获得了良好的转换增益、较高的线性度和较低的功率。电路实现基于0.25μm GaAs赝配高电子迁移率晶体管(pHEMT)工艺,并采用ADS软件完成的电路设计及版图EM仿真。仿真结果表明,在电源电压为5 V、本振信号输入功率为0 dBm时,混频器工作在中心频率24 GHz时的转换增益为7.2 dBm,P1dB为6 dBm,混频器的最大输出功率为8 dBm,芯片面积为0.9 mm^2。
In this paper,a down-conversion double-balanced microwave mixer for K-band is proposed. The circuit is based on the Gilbert structure and combines two on-chip Balun converters to obtain better conversion gain,higher linearity and lower power. The circuit is implemented with a 0. 25 μm GaAs pseudomorphic high electron mobility transistor（ pHEMT） process,and uses Keysight ADS software to complete the circuit design and layout EM simulation. The simulation results show that the conversion gain of the mixer in the 24 GHz band is 7. 2 dBm and the P1dB is 6 dBm when the power supply voltage is 5 V and the input power of the local oscillator is 0 d Bm,and the maximum input power is 8 dBm. The chip area is only 0. 9 mm^2.
作者
李罡
余凯
李思臻
章国豪
周正轩
刘祖华
Li Gang;Yu kai;Li Sizhen;Zhang Guohao;Zhou Zhengxuan;Liu Zuhua(School of Information Engineering,Guangdong University of Technology,Guangzhou 510006,China;Guangzhou Suiyuan Microelectronic Technology Co.,Ltd.,Guangzhou 510006,China)
出处
《信息技术与网络安全》
2018年第5期97-101,共5页
Information Technology and Network Security
基金
国家自然科学基金项目(61404032)
国家自然科学基金项目(61574049)
