Direct Digital RF Technology-Challenges for beyond Nyquist Frequency Range

研究成果: Conference contribution

抄録

Since the maximum operational frequency of digital RF based on A/D and D/A is Nyquist frequency, it has been difficult to apply digital RF concept to higher microwave frequency range. In this paper, direct digital RF technology is introduced to break this Nyquist limit. This technology utilizes the higher-order Nyquist Zones (beyond the Nyquist frequency range) and higher microwave frequency signal can be handled directly. Higher order direct RF undersampling architecture is introduced for receiver and a fabricated results of 28GHz-band receiver using 1GHz sampling clock will be shown. A 1-bit bandpass\mathbf\Delta\mathbf\Sigma modulator is introduced for transmitter which generates a 26GHz-band RF signal directly from 8Gbps 1-bit digital stream. In order to enhance the image signal level and SNR, RZ signaling and Manchester coding techniques are examined. This direct digital RF technology brings really digital rich microwave/MMW transceivers in future CMOS era.

本文言語English
ホスト出版物のタイトル2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781538659717
DOI
出版ステータスPublished - 2018 11 5
イベント2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018 - Melbourne, Australia
継続期間: 2018 8 152018 8 17

出版物シリーズ

名前2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018

Other

Other2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018
国/地域Australia
CityMelbourne
Period18/8/1518/8/17

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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