低电平导频子系统的射频调制器设计

2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI:10.1109/AUSMS.2014.7017348

Raheleh Eslampanah, M. Pourakbar, Shabbir Ahmed, Jean-Michel Redouté, M. Faulkner

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引用次数: 1

摘要

本文提出了一种自适应双工器，利用对消代替滤波来获得足够的发射机(Tx)泄漏和接收机中的噪声隔离。通过引入低电平伪噪声(PN)导频信号来调节对消系数。为了将导频信号调制到射频，设计了一种简单的低载波馈通直接上变频混频器。该结构已在蓝宝石上硅(SOS) 250 nm气相色谱工艺中实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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RF modulator design for a low level pilot sub-system

This paper presents an adaptive duplexer using cancelling instead of filtering to obtain sufficient transmitter (Tx) leakage and noise isolation in the receiver. A low level pseudo-noise (PN) pilot signal is introduced in order to adjust the cancelling coefficients. To modulate the pilot signal to radio frequencies a straightforward direct up-conversion mixer with low carrier feedthrough has been designed. This structure has been implemented in the silicon-on-sapphire (SOS) 250 nm GC process.

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2014 1st Australian Microwave Symposium (AMS)

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