RF Filter Synthesis Based on Passively Coupled N-Path Resonators
RF Filter Synthesis Based on Passively Coupled N-Path Resonators
复制标题
基于无源耦合 N 路谐振器的射频滤波器合成
DOI：
10.1109/jssc.2019.2923561
复制
发表时间：
2019
影响因子：
5.4
通讯作者：
H. Hashemi
中科院分区：
文献类型：
--
作者：
Pingyue Song;H. Hashemi
<inline-formula><tex-math notation="LaTeX">${N}$</tex-math></inline-formula>路径电路，由一个开关电容器阵列驱动的非重叠时钟，已被用来创建射频带通和带阻滤波器。本文介绍了一种射频带通滤波器的综合方法，该方法利用多个无源耦合的<inline-formula><tex-math notation="LaTeX">${N}$</tex-math></inline-formula>通道谐振器来实现具有传输零点的更有选择性的传递函数。设计细节和测量结果的概念验证滤波器原型与0.8-1.1 GHz的可调带通频率实现在65 nm CMOS工艺。
<inline-formula> <tex-math notation="LaTeX">${N}$ </tex-math></inline-formula>-path circuits, consisting of an array of switched capacitors driven with non-overlapping clocks, have been used to create radio frequency bandpass and band-stop filters. This paper covers a synthesizing methodology of RF bandpass filters (BPFs) that uses multiple passively coupled <inline-formula> <tex-math notation="LaTeX">${N}$ </tex-math></inline-formula>-path resonators to realize a more selective transfer function with transmission zeros. Design details and measurement results of a proof-of-concept filter prototype with a 0.8–1.1-GHz tunable bandpass frequency realized in a 65-nm CMOS technology are presented.