A frequency tunable super-regenerative oscillator for channel selective receivers

Author

Yoon, Won-Sang ; Lee, Hun-Sung ; Lee, Hee-Jong ; Lim, Jongsik ; Kim, Young-Sik ; Han, Sang-Min

Author_Institution

Commun. R&D Center, Samsung Thales, Seongnam, South Korea

fYear

2011

fDate

16-19 Jan. 2011

Firstpage

227

Lastpage

230

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.

Keywords

amplitude shift keying; injection locked oscillators; microwave receivers; varactors; voltage-controlled oscillators; ISM band; channel selective receivers; channel selectivity; external quenching signal; frequency 2.41 GHz to 2.5 GHz; frequency 200 kHz; frequency tunable super-regenerative oscillator; injected on-off keying modulated signal; short-range sensor networks; varactor diode; voltage 0 V to 5 V; voltage-controlled injection locked oscillator; Oscillators; Receivers; Resonant frequency; Tuning; Varactors; Voltage control; Super-regenerative oscillators; injection lock; quenching; super-regenerative receivers; varactor diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium (RWS), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4244-7687-9

Type

conf

DOI

10.1109/RWS.2011.5725455

Filename

5725455