A frequency tunable super-regenerative oscillator for channel selective receivers

2011 IEEE Radio and Wireless Symposium Pub Date : 2011-03-07 DOI:10.1109/RWS.2011.5725455

Won‐Sang Yoon, Hun-Sung Lee, Heejong Lee, Jongsik Lim, Young-Sik Kim, Sang‐Min Han

引用次数: 3

Abstract

A frequency tunable super-regenerative oscillator (SRO) is proposed for channel selective receivers in short-range sensor networks. The SRO is designed with the voltage-controlled injection locked oscillator (VC-ILO) and an external quenching signal. A varactor diode is mounted on the resonator in order to achieve frequency tunability. From the experimental results, the proposed SRO has regenerated the output signal with excellent frequency selectivity from 2.41 to 2.50 GHz at tuning voltage of 0 V – 5 V. For injected On-Off Keying (OOK) modulated signal with a data rate of 50 kbps and sinusoidal quenching signal 200 kHz, the SRO has presented 10-MHz channel selectivity for ISM band of 2.41 – 2.50 GHz.

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一种用于信道选择接收机的频率可调超再生振荡器

提出了一种用于近程传感器网络信道选择接收机的频率可调超再生振荡器(SRO)。SRO采用压控注入锁定振荡器(VC-ILO)和外部淬火信号设计。为了实现频率可调性，在谐振器上安装了一个变容二极管。实验结果表明，该SRO在0 V ~ 5 V调谐电压下，能在2.41 ~ 2.50 GHz范围内再生出具有良好频率选择性的输出信号。对于数据速率为50 kbps、正弦淬火信号为200 kHz的注入开关键控(OOK)调制信号，SRO在2.41 ~ 2.50 GHz的ISM频段具有10 mhz的信道选择性。

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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2011 IEEE Radio and Wireless Symposium

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