A novel MICS chirp FSK receiver front-end

This paper presents a new receiver front-end for Chirp FSK MICS system dedicated to medical implantable devices. The receiver uses MICS band at 402-405 MHz. Chirped FSK pulses are used to encode the binary data. This enables non coherent FSK demodulator which simplifies the receiver architecture. Th...

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Bibliographic Details
Main Authors: Bettaieb, Mouna, Trabelsi, Hatem, Masmoudi, Mohamed
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Chirp
Chirp FSK
Frequency shift keying
Microwave integrated circuits
MICS receiver
Mixers
Receivers
Wireless communication
wireless implantable medical device
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Summary:This paper presents a new receiver front-end for Chirp FSK MICS system dedicated to medical implantable devices. The receiver uses MICS band at 402-405 MHz. Chirped FSK pulses are used to encode the binary data. This enables non coherent FSK demodulator which simplifies the receiver architecture. The receiver is designed to communicate a maximum data rate of 100 Kbps. The various blocks parameters of the receiver are simulated and optimized to meet receiver specifications. The receiver realizes a sensitivity of −93 dBm, a voltage gain of 29 dB and a NF of 5.5 dB. Linearity is also evaluated and the receiver IIP3 is equal to −12.6 dBm. After the down conversion mixer, a variable bandwidth low pass filter, with 40-300 MHz control range, passes the desired channel signal while eliminating in-band interference and thus lowering the sensitivity of the receiver.
ISSN:2575-1328
DOI:10.1109/ICEMIS.2017.8272971