Title :
A novel FM/FSK based receiver front-end for MedRadio spectrum in 401–406 MHz band
Author :
Srivastava, Abhishek ; Chatterjee, Baibhab ; Anavangot, Vineeth ; Baghini, Maryam Shojaei
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
A novel receiver front-end is proposed for FM/FSK modulated signal, which is transmitted from a body worn device in the MedRadio spectrum of 401-406 MHz. The front-end comprises a low noise amplifier (LNA), a zero crossing detector (ZCD) and a frequency to digital converter (FDC). The proposed architecture offers direct digitization of the input signal and is immune to LO leakage and problem of image frequencies. Designed in 180 nm mixed mode CMOS technology, the worst case post layout simulation results show a sensitivity of -80 dBm at 200 kbps for FSK modulated input with only 990 μW power consumption.
Keywords :
CMOS integrated circuits; UHF amplifiers; UHF oscillators; body area networks; frequency shift keying; low noise amplifiers; radio receivers; radio spectrum management; 180 nm mixed mode CMOS technology; FDC; FM based receiver front-end; FM modulated signal; FSK based receiver front-end; FSK modulated signal; LNA; LO leakage; MedRadio spectrum; ZCD; body worn device; direct input signal digitization; frequency 401 MHz to 406 MHz; frequency-to-digital converter; low noise amplifier; power 990 muW; power consumption; worst case post layout simulation; zero crossing detector; CMOS integrated circuits; Frequency shift keying; Gain; Layout; Noise; Receivers;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168748
