A 65-nm CMOS fully integrated shock-wave antenna array with on-chip jitter and pulse-delay adjustment for millimeter-wave active imaging application

Nguyen Ngoc Mai Khanh, Masahiro Sasaki, Kunihiro Asada

研究成果: Article

2 引用 (Scopus)

抄録

This paper presents a 65-nm CMOS 8-antenna array transmitter operating in 117-130-GHz range for short range and portable millimeter-wave (mm-wave) active imaging applications. Each antenna element is a new on-chip antenna located on the top metal. By using onchip transformer, pulse output of each resistor-less mm-wave pulse generators (PG) are sent to each integrated antenna. To adjust pulse delays for the purpose of pulse beam-forming, a 7-bit digitally programmable delay circuit (DPDC) is added to each of PGs. Moreover, in order to dynamically adjust pulse delays among eight SW's outputs, we implemented onchip jitter and relative skew measuring circuit with 20-bit digital output to achieve cumulative distribution (CDF) and probability density (PDF) functions from which DPDC's input codes are decided to align eight antenna's output pulses. Two measured radiation peaks after relative skew alignment are obtained at (θ, φ) angles of (-56°; 0°) and (+56°; 0°). Measurement results shows that beam-forming angles of the fully integrated antenna array can be adjusted by digital input codes and by the on-chip skew adjustment circuit for active imaging applications.

元の言語English
ページ(範囲)2554-2562
ページ数9
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E94-A
発行部数12
DOI
出版物ステータスPublished - 2011 12
外部発表Yes

Fingerprint

Jitter
Antenna arrays
Millimeter waves
Shock waves
Antennas
Imaging techniques
Pulse transformers
Delay circuits
Pulse generators
Networks (circuits)
Resistors
Probability density function
Transmitters
Radiation
Metals

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

これを引用

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abstract = "This paper presents a 65-nm CMOS 8-antenna array transmitter operating in 117-130-GHz range for short range and portable millimeter-wave (mm-wave) active imaging applications. Each antenna element is a new on-chip antenna located on the top metal. By using onchip transformer, pulse output of each resistor-less mm-wave pulse generators (PG) are sent to each integrated antenna. To adjust pulse delays for the purpose of pulse beam-forming, a 7-bit digitally programmable delay circuit (DPDC) is added to each of PGs. Moreover, in order to dynamically adjust pulse delays among eight SW's outputs, we implemented onchip jitter and relative skew measuring circuit with 20-bit digital output to achieve cumulative distribution (CDF) and probability density (PDF) functions from which DPDC's input codes are decided to align eight antenna's output pulses. Two measured radiation peaks after relative skew alignment are obtained at (θ, φ) angles of (-56°; 0°) and (+56°; 0°). Measurement results shows that beam-forming angles of the fully integrated antenna array can be adjusted by digital input codes and by the on-chip skew adjustment circuit for active imaging applications.",
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AB - This paper presents a 65-nm CMOS 8-antenna array transmitter operating in 117-130-GHz range for short range and portable millimeter-wave (mm-wave) active imaging applications. Each antenna element is a new on-chip antenna located on the top metal. By using onchip transformer, pulse output of each resistor-less mm-wave pulse generators (PG) are sent to each integrated antenna. To adjust pulse delays for the purpose of pulse beam-forming, a 7-bit digitally programmable delay circuit (DPDC) is added to each of PGs. Moreover, in order to dynamically adjust pulse delays among eight SW's outputs, we implemented onchip jitter and relative skew measuring circuit with 20-bit digital output to achieve cumulative distribution (CDF) and probability density (PDF) functions from which DPDC's input codes are decided to align eight antenna's output pulses. Two measured radiation peaks after relative skew alignment are obtained at (θ, φ) angles of (-56°; 0°) and (+56°; 0°). Measurement results shows that beam-forming angles of the fully integrated antenna array can be adjusted by digital input codes and by the on-chip skew adjustment circuit for active imaging applications.

KW - Active imaging

KW - Beam-forming

KW - CMOS

KW - Integrated circuit

KW - Jitter measurement

KW - Millimeter-wave

KW - On-chip antenna array

KW - Wide-band

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