Paper Abstract and Keywords |
Presentation |
2023-07-12 12:40
Novel digital-to-analog converter immune to asymmetric transition waveform distortion in bandpass delta-sigma modulators Takashi Maehata (SEI), Mizuki Motoyoshi (Shizuoka Institute of Science and Technology), Noriharu Suematsu (Tohoku University) SR2023-26 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In 5G and next-generation mobile communication systems, to achieve High-speed communication, massive multiple-input and multiple-output (MIMO) and carrier aggregation (CA) that use multiple transmitters have been introduced with a wideband modulation signal, which causes an increase in the size of the equipment, thereby requiring the need to reduce its size. To solve this issue, 1-bit band-pass delta-sigma modulation (1-bit BP-DSM) has focused on, which can output modulation signals directly from the digital section without using analog frequency converter and local oscillator. However, distortion due to asymmetric transition time waveforms (rising and falling waveforms) to the time axis in high-speed digital signals with a speed of several Gb/s causes a degradation of the adjacent leakage power ratio. Therefore, this paper proposes a novel 1-bit digital analog converter immune to the distortion, which causes no distortion, theoretically. We introduce the principle of their operation and the performance based on numerical calculations. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
delta-sigma modulator / bandpass / asymmetry / D/A converter / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 123, no. 109, SR2023-26, pp. 1-6, July 2023. |
Paper # |
SR2023-26 |
Date of Issue |
2023-07-05 (SR) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
SR2023-26 |
Conference Information |
Committee |
SeMI RCS RCC NS SR |
Conference Date |
2023-07-12 - 2023-07-14 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Osaka University Nakanoshima Center + Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Distributed Wireless Network, M2M (Machine-to-Machine),D2D (Device-to-Device),IoT(Internet of Things), etc |
Paper Information |
Registration To |
SR |
Conference Code |
2023-07-SeMI-RCS-RCC-NS-SR |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Novel digital-to-analog converter immune to asymmetric transition waveform distortion in bandpass delta-sigma modulators |
Sub Title (in English) |
|
Keyword(1) |
delta-sigma modulator |
Keyword(2) |
bandpass |
Keyword(3) |
asymmetry |
Keyword(4) |
D/A converter |
Keyword(5) |
|
Keyword(6) |
|
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Takashi Maehata |
1st Author's Affiliation |
Sumitomo Electric Industries Ltd. (SEI) |
2nd Author's Name |
Mizuki Motoyoshi |
2nd Author's Affiliation |
Shizuoka Institute of Science and Technology (Shizuoka Institute of Science and Technology) |
3rd Author's Name |
Noriharu Suematsu |
3rd Author's Affiliation |
Tohoku University (Tohoku University) |
4th Author's Name |
|
4th Author's Affiliation |
() |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2023-07-12 12:40:00 |
Presentation Time |
25 minutes |
Registration for |
SR |
Paper # |
SR2023-26 |
Volume (vol) |
vol.123 |
Number (no) |
no.109 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2023-07-05 (SR) |
|