This paper presents an AM receiver implemented in a flexible a-IGZO TFT technology. The circuit consists of a four-stage cascode amplifier at the RF input, a detector based on a source follower, and a common-source circuit for the baseband amplification. The measured conversion gain is very flat against frequency and exceeds 15 dB for carrier frequencies ranging from 2 to 20 MHz, which covers a relevant portion of the shortwave radio band. The 3 dB-bandwidth of the baseband signal ranges from 400 Hz to 10 kHz: this is comparable to the so-called voice band and is suitable to low-rate data communications. Additionally, the AM receiver is tested in combination with two textile antennas. The flexible a-IGZO receiver successfully detected the baseband signal through the textile antennas, demonstrating for the first time wireless transmission for this class of technologies.
20 MHz carrier frequency AM receiver in flexible A-IGZO TFT technology with textile antennas (invited)
Salvatore G. A.;
2016-01-01
Abstract
This paper presents an AM receiver implemented in a flexible a-IGZO TFT technology. The circuit consists of a four-stage cascode amplifier at the RF input, a detector based on a source follower, and a common-source circuit for the baseband amplification. The measured conversion gain is very flat against frequency and exceeds 15 dB for carrier frequencies ranging from 2 to 20 MHz, which covers a relevant portion of the shortwave radio band. The 3 dB-bandwidth of the baseband signal ranges from 400 Hz to 10 kHz: this is comparable to the so-called voice band and is suitable to low-rate data communications. Additionally, the AM receiver is tested in combination with two textile antennas. The flexible a-IGZO receiver successfully detected the baseband signal through the textile antennas, demonstrating for the first time wireless transmission for this class of technologies.
I documenti in ARCA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
