CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters

CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters

This paper describes a high-speed CORDIC-based digital outphasing modulator. Fixed-point Matlab model of the outphasing modulator is developed to evaluate the system performance and define the circuit design parameters. Design issues such as signal quantization error, delay mismatch, and phase overf...

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Main Authors: Dixian Zhao, Pingyang He
Format: Article
Language:English
Published: Hindawi-Wiley 2018-01-01
Series:Wireless Communications and Mobile Computing
Online Access:http://dx.doi.org/10.1155/2018/7216870
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spelling doaj-e65232e1df3b45b2971a7ce0b0d609782020-11-24T20:49:03ZengHindawi-WileyWireless Communications and Mobile Computing1530-86691530-86772018-01-01201810.1155/2018/72168707216870CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave TransmittersDixian Zhao0Pingyang He1National Mobile Communication Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing 211189, ChinaNational Mobile Communication Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing 211189, ChinaThis paper describes a high-speed CORDIC-based digital outphasing modulator. Fixed-point Matlab model of the outphasing modulator is developed to evaluate the system performance and define the circuit design parameters. Design issues such as signal quantization error, delay mismatch, and phase overflowing are addressed to enable hardware implementation. The complete outphasing modulator is fully custom designed in 40 nm CMOS, which can be integrated in a millimeter-wave outphasing transmitter to enhance the system average efficiency. Tested with 10.56 Gb/s 64-QAM, this work achieves an EVM of 3.2% and fulfils the IEEE 802.11ad spectral mask requirements.http://dx.doi.org/10.1155/2018/7216870
collection DOAJ
language English
format Article
sources DOAJ
author Dixian Zhao
Pingyang He
spellingShingle Dixian Zhao
Pingyang He
CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
Wireless Communications and Mobile Computing
author_facet Dixian Zhao
Pingyang He
author_sort Dixian Zhao
title CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
title_short CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
title_full CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
title_fullStr CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
title_full_unstemmed CORDIC-Based Multi-Gb/s Digital Outphasing Modulator for Highly Efficient Millimeter-Wave Transmitters
title_sort cordic-based multi-gb/s digital outphasing modulator for highly efficient millimeter-wave transmitters
publisher Hindawi-Wiley
series Wireless Communications and Mobile Computing
issn 1530-8669
1530-8677
publishDate 2018-01-01
description This paper describes a high-speed CORDIC-based digital outphasing modulator. Fixed-point Matlab model of the outphasing modulator is developed to evaluate the system performance and define the circuit design parameters. Design issues such as signal quantization error, delay mismatch, and phase overflowing are addressed to enable hardware implementation. The complete outphasing modulator is fully custom designed in 40 nm CMOS, which can be integrated in a millimeter-wave outphasing transmitter to enhance the system average efficiency. Tested with 10.56 Gb/s 64-QAM, this work achieves an EVM of 3.2% and fulfils the IEEE 802.11ad spectral mask requirements.
url http://dx.doi.org/10.1155/2018/7216870
work_keys_str_mv AT dixianzhao cordicbasedmultigbsdigitaloutphasingmodulatorforhighlyefficientmillimeterwavetransmitters
AT pingyanghe cordicbasedmultigbsdigitaloutphasingmodulatorforhighlyefficientmillimeterwavetransmitters
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