Abstract
In this paper, we present a 0.18-μm CMOS fully integrated X-band shock wave generator (SWG) with an on-chip dipole antenna and a digitally programmable delay circuit (DPDC) for pulse beamformability in short-range and hand-held microwave active imaging applications. This chip includes a SWG, a 5-bit DPDC and an on-chip wideband meandering dipole antenna. By using an integrated transformer, output pulse of the SWG is sent to the on-chip meandering dipole antenna. The SWG operates based on damping conditions to produce a 0.4-V peak-to-peak (p-p) pulse amplitude at the antenna input terminals in HSPICE simulation. The DPDC is designed to adjust delays of shock-wave outputs for the purpose of steering beams in antenna array systems. The wide-band dipole antenna element designed in the meandering shape is located in the top metal of a 5-metal-layer 0.18-μm CMOS chip. By simulating in Momentum of ADS 2009, the minimum value of antenna's return loss, S 11, and antenna's bandwidth (BW) are -19.37 dB and 25.3 GHz, respectively. The measured return loss of a stand-alone integrated meandering dipole is from -26 dB to -10 dB with frequency range of 7.5-12 GHz. In measurements of the SWG with the integrated antenna, by using a 20-dB standard gain horn antenna placed at a 38-mm distance from the chip's surface, a 1.1-mVp-p shock wave with a 9-11-GHz frequency response is received. A measured 3-ps pulse delay resolution is also obtained. These results prove that our proposed circuit is suitable for the purpose of fully integrated pulse beam-forming system.
| Original language | English |
|---|---|
| Pages (from-to) | 627-634 |
| Number of pages | 8 |
| Journal | IEICE Transactions on Electronics |
| Volume | E94-C |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Apr |
| Externally published | Yes |
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Keywords
- Beam-forming
- CMOS
- Digitally programmable delay circuit
- Microwave
- On-chip antenna
- Shock wave
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
A 0.18-μm CMOS X-band shock wave generator with an on-chip dipole antenna and a digitally programmable delay circuit for pulse beam-formability. / Mai Khanh, Nguyen Ngoc; Sasaki, Masahiro; Asada, Kunihiro.
In: IEICE Transactions on Electronics, Vol. E94-C, No. 4, 04.2011, p. 627-634.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A 0.18-μm CMOS X-band shock wave generator with an on-chip dipole antenna and a digitally programmable delay circuit for pulse beam-formability
AU - Mai Khanh, Nguyen Ngoc
AU - Sasaki, Masahiro
AU - Asada, Kunihiro
PY - 2011/4
Y1 - 2011/4
N2 - In this paper, we present a 0.18-μm CMOS fully integrated X-band shock wave generator (SWG) with an on-chip dipole antenna and a digitally programmable delay circuit (DPDC) for pulse beamformability in short-range and hand-held microwave active imaging applications. This chip includes a SWG, a 5-bit DPDC and an on-chip wideband meandering dipole antenna. By using an integrated transformer, output pulse of the SWG is sent to the on-chip meandering dipole antenna. The SWG operates based on damping conditions to produce a 0.4-V peak-to-peak (p-p) pulse amplitude at the antenna input terminals in HSPICE simulation. The DPDC is designed to adjust delays of shock-wave outputs for the purpose of steering beams in antenna array systems. The wide-band dipole antenna element designed in the meandering shape is located in the top metal of a 5-metal-layer 0.18-μm CMOS chip. By simulating in Momentum of ADS 2009, the minimum value of antenna's return loss, S 11, and antenna's bandwidth (BW) are -19.37 dB and 25.3 GHz, respectively. The measured return loss of a stand-alone integrated meandering dipole is from -26 dB to -10 dB with frequency range of 7.5-12 GHz. In measurements of the SWG with the integrated antenna, by using a 20-dB standard gain horn antenna placed at a 38-mm distance from the chip's surface, a 1.1-mVp-p shock wave with a 9-11-GHz frequency response is received. A measured 3-ps pulse delay resolution is also obtained. These results prove that our proposed circuit is suitable for the purpose of fully integrated pulse beam-forming system.
AB - In this paper, we present a 0.18-μm CMOS fully integrated X-band shock wave generator (SWG) with an on-chip dipole antenna and a digitally programmable delay circuit (DPDC) for pulse beamformability in short-range and hand-held microwave active imaging applications. This chip includes a SWG, a 5-bit DPDC and an on-chip wideband meandering dipole antenna. By using an integrated transformer, output pulse of the SWG is sent to the on-chip meandering dipole antenna. The SWG operates based on damping conditions to produce a 0.4-V peak-to-peak (p-p) pulse amplitude at the antenna input terminals in HSPICE simulation. The DPDC is designed to adjust delays of shock-wave outputs for the purpose of steering beams in antenna array systems. The wide-band dipole antenna element designed in the meandering shape is located in the top metal of a 5-metal-layer 0.18-μm CMOS chip. By simulating in Momentum of ADS 2009, the minimum value of antenna's return loss, S 11, and antenna's bandwidth (BW) are -19.37 dB and 25.3 GHz, respectively. The measured return loss of a stand-alone integrated meandering dipole is from -26 dB to -10 dB with frequency range of 7.5-12 GHz. In measurements of the SWG with the integrated antenna, by using a 20-dB standard gain horn antenna placed at a 38-mm distance from the chip's surface, a 1.1-mVp-p shock wave with a 9-11-GHz frequency response is received. A measured 3-ps pulse delay resolution is also obtained. These results prove that our proposed circuit is suitable for the purpose of fully integrated pulse beam-forming system.
KW - Beam-forming
KW - CMOS
KW - Digitally programmable delay circuit
KW - Microwave
KW - On-chip antenna
KW - Shock wave
UR - http://www.scopus.com/inward/record.url?scp=79953299176&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953299176&partnerID=8YFLogxK
U2 - 10.1587/transele.E94.C.627
DO - 10.1587/transele.E94.C.627
M3 - Article
VL - E94-C
SP - 627
EP - 634
JO - IEICE Transactions on Electronics
JF - IEICE Transactions on Electronics
SN - 0916-8524
IS - 4
ER -