⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种面向软件定义无线电（SDR）的宽调谐可重构CMOS模拟基带IC。通过设计可编程的Gm-C滤波器，实现了截止频率、阶数和选择性的灵活配置，以支持多种无线通信标准。
Although software-defined radio (SDR) transceivers that operate with many current and future wireless systems (i.e., cellular, WLAN, WPAN, broadcast and GPS standards) have been extensively developed [1-2], demands for even more flexibility, small area and low power consumption have been increasing for portable applications. One of the key building blocks for SDR transceivers is an analog baseband, in which the filter characteristics such as cut-off frequency, selectivity, filter-order, pass-band ripple and stop-band ripple should be changed to meet specific application requirements. Conventional filters with analog tuning schemes are small in area and have low power consumption, but their tuning range is limited; it is usually designed to compensate for process variations, especially with low supply voltages. Filters configured in an array have a certain level of flexibility, but the die
Masaki Kitsunezuka, Shinichi Hori, Tadashi Maeda
NEC, Kanagawa, Japan