← 返回 JSSC 论文列表JSSC 2006第11期RF & Wireless
5257-GHz 48-dB Image Rejection GaInPGaAs HBT Weaver Down-Converter Using LO Freq
采用Weaver架构的GaInP/GaAs HBT下变频器，实现48dB镜像抑制。
5.2GHz/5.7GHz RF频率下镜像抑制比48dB/44dB
Weaver架构GaInP/GaAs HBT镜像抑制下变频器频率四倍器
▸采用Weaver架构无需带通滤波器和正交网络
▸新型频率四倍器减少LO信号相位误差
▸使用复数混频技术分析镜像抑制机制
Abstract
A GaInP/GaAs heterojunction bipolar transistor
(HBT) down-converter using the Weaver architecture is demon-
strated in this paper. The Weaver system is a double-conversion
image rejection heterodyne system which requires no bandpass
filters in the signal path and no quadrature networks. The Weaver
down-converter has the image rejection ratios of 48 dB and 44 dB
when the RF frequency is 5.2 GHz and 5.7 GHz, respectively. A
new frequency quadrupler is employed in the down-converter to
generate the