Sök bland våra professorer, lärare och övriga medarbetare
( Akademin för informationsteknologi )
Ultra Low Power Wake-Up Radio Using Envelope Detector and Transmission Line Voltage Transformer
Nilsson, Emil, Svensson, Christer
Artikel i tidskrift (Refereegranskat)
An ultra-low power wake-up radio receiver using no oscillators is described. The radio utilizes an envelope detector followed by a baseband amplifier and is fabricated in a 130-nm complementary metal-oxide-semiconductor process. The receiver is preceded by a passive radio-frequency voltage transformer, also providing 50 Omega antenna matching, fabricated as transmission lines on the FR4 chip carrier. A sensitivity of -47 dBm with 200 kb/s on-off keying modulation is measured at a current consumption of 2.3 mu A from a 1 V supply. No trimming is used. The receiver accepts a dBm continuous wave blocking signal, or modulated blockers 6 dB below the sensitivity limit, with no loss of sensitivity.
Nyckelord: Blocking signal; complementary metal-oxide-semiconductor (CMOS); envelope detector sensitivity; radio-frequency identification (RFID); ultra low power; wake-up radio; wireless sensor networks