High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers

Akira FUJIMAKI; Yoshinori NISHIDO; Akito SEKIYA

doi:10.1093/ietele/e89-c.2.113

High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers

Akira FUJIMAKI, Yoshinori NISHIDO, Akito SEKIYA

Full Text Views

0

Cite this

Summary :

We describe three types of software-defined-radio (SDR) receivers based on superconducting technologies. The superconducting analog bandpass filters are essential for all types of the receivers. Another key component is an analog-to-digital converters (ADCs), which are required to have high resolution with a broad band width. The complementary Δ ADC based on the single-flux-quantum circuit is a promising candidate for the SDR receivers because it has a practical nature together with above-mentioned requirements. The experimentally obtained signal-to-noise ratio (SNR) and sensitivity, which are closely related to the resolution, are 34 dB and 20 µA for a quarter of the full-scale input with a band width of about 20 MHz. If we use the optimum decimation filter, the ADC is expected to have the SNR of 82 dB and the sensitivity of 300 nA. These values meet the requirements of the easiest type of the SDR receiver. After new fabrication process has been introduced and the architecture of the ADC has been improved, all types of recievers could be realized based on superconductors.

Publication: IEICE TRANSACTIONS on Electronics Vol.E89-C No.2 pp.113-118

Publication Date: 2006/02/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1093/ietele/e89-c.2.113

Type of Manuscript: Special Section INVITED PAPER (Special Section on Superconducting High-frequency Devices)

Category

Cite this

Copy

Akira FUJIMAKI, Yoshinori NISHIDO, Akito SEKIYA, "High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers" in IEICE TRANSACTIONS on Electronics, vol. E89-C, no. 2, pp. 113-118, February 2006, doi: 10.1093/ietele/e89-c.2.113.
Abstract: We describe three types of software-defined-radio (SDR) receivers based on superconducting technologies. The superconducting analog bandpass filters are essential for all types of the receivers. Another key component is an analog-to-digital converters (ADCs), which are required to have high resolution with a broad band width. The complementary Δ ADC based on the single-flux-quantum circuit is a promising candidate for the SDR receivers because it has a practical nature together with above-mentioned requirements. The experimentally obtained signal-to-noise ratio (SNR) and sensitivity, which are closely related to the resolution, are 34 dB and 20 µA for a quarter of the full-scale input with a band width of about 20 MHz. If we use the optimum decimation filter, the ADC is expected to have the SNR of 82 dB and the sensitivity of 300 nA. These values meet the requirements of the easiest type of the SDR receiver. After new fabrication process has been introduced and the architecture of the ADC has been improved, all types of recievers could be realized based on superconductors.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e89-c.2.113/_p

Copy

@ARTICLE{e89-c_2_113,
author={Akira FUJIMAKI, Yoshinori NISHIDO, Akito SEKIYA, },
journal={IEICE TRANSACTIONS on Electronics},
title={High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers},
year={2006},
volume={E89-C},
number={2},
pages={113-118},
abstract={We describe three types of software-defined-radio (SDR) receivers based on superconducting technologies. The superconducting analog bandpass filters are essential for all types of the receivers. Another key component is an analog-to-digital converters (ADCs), which are required to have high resolution with a broad band width. The complementary Δ ADC based on the single-flux-quantum circuit is a promising candidate for the SDR receivers because it has a practical nature together with above-mentioned requirements. The experimentally obtained signal-to-noise ratio (SNR) and sensitivity, which are closely related to the resolution, are 34 dB and 20 µA for a quarter of the full-scale input with a band width of about 20 MHz. If we use the optimum decimation filter, the ADC is expected to have the SNR of 82 dB and the sensitivity of 300 nA. These values meet the requirements of the easiest type of the SDR receiver. After new fabrication process has been introduced and the architecture of the ADC has been improved, all types of recievers could be realized based on superconductors.},
keywords={},
doi={10.1093/ietele/e89-c.2.113},
ISSN={1745-1353},
month={February},}

Copy

TY - JOUR
TI - High-Resolution Analog-to-Digital Converters toward Software-Defined-Radio Receivers
T2 - IEICE TRANSACTIONS on Electronics
SP - 113
EP - 118
AU - Akira FUJIMAKI
AU - Yoshinori NISHIDO
AU - Akito SEKIYA
PY - 2006
DO - 10.1093/ietele/e89-c.2.113
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E89-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2006
AB - We describe three types of software-defined-radio (SDR) receivers based on superconducting technologies. The superconducting analog bandpass filters are essential for all types of the receivers. Another key component is an analog-to-digital converters (ADCs), which are required to have high resolution with a broad band width. The complementary Δ ADC based on the single-flux-quantum circuit is a promising candidate for the SDR receivers because it has a practical nature together with above-mentioned requirements. The experimentally obtained signal-to-noise ratio (SNR) and sensitivity, which are closely related to the resolution, are 34 dB and 20 µA for a quarter of the full-scale input with a band width of about 20 MHz. If we use the optimum decimation filter, the ADC is expected to have the SNR of 82 dB and the sensitivity of 300 nA. These values meet the requirements of the easiest type of the SDR receiver. After new fabrication process has been introduced and the architecture of the ADC has been improved, all types of recievers could be realized based on superconductors.
ER -