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The BLIXER a Wideband Balun-LNA-IQ-Mixer Topology
提出一种将I/Q混频器与噪声消除balun-LNA合并的宽带拓扑结构
18dB转换增益, 5.5dB噪声系数(500MHz-7GHz), IIP2 +32dBm, IIP3 +3dBm, 16mW功耗@1.2V
宽带LNAI/Q混频器噪声消除软件定义无线电零中频
▸合并I/Q电流交换混频器与噪声消除balun-LNA
▸通过低阻抗节点实现高带宽而不使用电感
▸采用25%占空比LO波形降低IF滤波后的DC压降
Abstract
er , IEEE ,
Domine M. W. Leenaerts , Fellow, IEEE, and Bram Nauta , Fellow, IEEE
Abstract—This paper proposes to merge an I/Q current-com-
mutating mixer with a noise-canceling balun-LNA. T o realize a
high bandwidth, the real part of the impedance of all RF nodes
is kept low, and the voltage gain is not created at RF but in
baseband where capacitive loading is no problem. Thus a high
RF bandwidth is achieved without using inductors for bandwidth
extension. By using an I/Q mixer with 25% duty-cy