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.
| Original language | English |
|---|---|
| Pages (from-to) | 2554-2562 |
| Number of pages | 9 |
| Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| Volume | E94-A |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2011 Dec |
| Externally published | Yes |
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Keywords
- Active imaging
- Beam-forming
- CMOS
- Integrated circuit
- Jitter measurement
- Millimeter-wave
- On-chip antenna array
- Wide-band
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Graphics and Computer-Aided Design
- Applied Mathematics
- Signal Processing
Cite this
A 65-nm CMOS fully integrated shock-wave antenna array with on-chip jitter and pulse-delay adjustment for millimeter-wave active imaging application. / Mai Khanh, Nguyen Ngoc; Sasaki, Masahiro; Asada, Kunihiro.
In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E94-A, No. 12, 12.2011, p. 2554-2562.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A 65-nm CMOS fully integrated shock-wave antenna array with on-chip jitter and pulse-delay adjustment for millimeter-wave active imaging application
AU - Mai Khanh, Nguyen Ngoc
AU - Sasaki, Masahiro
AU - Asada, Kunihiro
PY - 2011/12
Y1 - 2011/12
N2 - 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.
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
UR - http://www.scopus.com/inward/record.url?scp=82655183059&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=82655183059&partnerID=8YFLogxK
U2 - 10.1587/transfun.E94.A.2554
DO - 10.1587/transfun.E94.A.2554
M3 - Article
VL - E94-A
SP - 2554
EP - 2562
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
SN - 0916-8508
IS - 12
ER -