A 863-870-Mhz spread-spectrum direct conversion receiver design for wireless sensor

• Published in: International Conference on Design and Test of Integrated Systems in Nanoscale Technology, 2006. DTIS 2006 pp. 205 - 208
• Main Authors: Trabelsi, H., Bouzid, G.H., Jaballi, Y., Bouzid, L., Derbel, F., Masmoudi, M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2006
• Subjects: Frequency modulation; Frequency shift keying; Gain; Low pass filters; Low-noise amplifiers; Mixers; Noise figure; Spread spectrum communication; Transceivers; Wireless sensor networks
• ISBN: 0780397266; 9780780397262
• DOI: 10.1109/DTIS.2006.1708682

This paper presents simulation results of the receiver section of a frequency-hopped spread-spectrum transceiver operating in the 863-870 MHz European band for wireless sensor applications. The receiver is designed for binary frequency-shift keying (BFSK) modulation, communicating a maximum data rate of 20 kb/s. The receiver combines a low-noise amplifier with down conversion mixer, a low-pass channel-select filter and a limiter. The various blocks parameters of the receiver like noise figure, gain and IIP3 are simulated and optimized to meet receiver specifications. The receiver simulations show 51.1 dB conversion gain, -7 dBm IIP3, -15 dB return loss (S 11 ) and 10 dB NF