...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 0.5-to-3 GHz Software-Defined Radio Receiver Using Discrete-Time RF Signal Processing
【24h】

A 0.5-to-3 GHz Software-Defined Radio Receiver Using Discrete-Time RF Signal Processing

机译：使用离散射频信号处理的0.5至3 GHz软件定义无线电接收机

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A software-defined radio (SDR) wireless receiver leveraging discrete-time (DT) RF signal processing is introduced. The proposed DT signal processor, which applies switched capacitor techniques to radio frequencies, achieves harmonic rejection, image rejection, and frequency translation simultaneously. A frequency tunable high-Q 2nd-order bandpass input impedance is synthesized by the DT RF signal processor, which enhances the front-end interference rejection and frequency selectivity. A proof-of-concept SDR receiver prototype, including a 65 nm LP CMOS chip and a custom designed board, is presented. The highly programmable chip allows independent control of individual block parameters and bias operating points for optimum performance under various signal scenarios. The 0.5-to-3 GHz SDR receiver achieves out-of-band IIP3 > 11 dBm, IIP2 > 46 dBm, uncalibrated 3rd and 5th order harmonic rejection exceeding 46 dB and 51 dB, respectively, and can handle up to $-$5 dBm blockers with less than 5 dB degradation in signal-to-noise ratio (SNR) when the blocker offset frequency is 10 times the signal bandwidth irrespective of the center frequency.
机译：引入了利用离散时间（DT）RF信号处理的软件定义无线电（SDR）无线接收器。提议的DT信号处理器将开关电容器技术应用于射频，同时实现了谐波抑制，镜像抑制和频率转换。 DT RF信号处理器合成了频率可调的高Q 2阶带通输入阻抗，从而增强了前端干扰抑制能力和频率选择性。提出了概念验证的SDR接收器原型，其中包括65 nm LP CMOS芯片和定制设计的板。高度可编程的芯片允许独立控制各个模块参数和偏置工作点，以在各种信号情况下实现最佳性能。 0.5至3 GHz SDR接收机的带外IIP3> 11 dBm，IIP2> 46 dBm，未经校准的三阶和五阶谐波抑制分别超过46 dB和51 dB，并且可以处理高达$-$ 5 dBm当阻塞器偏移频率是信号带宽的10倍时，无论中心频率如何，信噪比（SNR）降级小于5 dB的阻塞器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号