Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator
In this paper, a fully-integrated dual-mode X-band radar transceiver that supports Doppler radar and frequency modulated continuous wave (FMCW) radar is proposed. To remove large off-chip DC-blocking capacitors in the Doppler mode, the double-conversion technique and local oscillator (LO) chopping t...
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doaj-7bef80e11ce94e5ea5d2d8151e693f972021-03-30T04:06:27ZengIEEEIEEE Access2169-35362020-01-01815140315141410.1109/ACCESS.2020.30166899167189Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local OscillatorKeum-Won Ha0Jeong-Yun Lee1https://orcid.org/0000-0001-6586-4422Goo-Han Ko2https://orcid.org/0000-0002-6398-3644Young-Jin Kim3Jeong-Geun Kim4Donghyun Baek5https://orcid.org/0000-0003-0675-1115School of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaSchool of Electronics and Information Engineering, Korea Aerospace University, Seoul, South KoreaDepartment of Electronic Engineering, Kwangwoon University, Seoul, South KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaIn this paper, a fully-integrated dual-mode X-band radar transceiver that supports Doppler radar and frequency modulated continuous wave (FMCW) radar is proposed. To remove large off-chip DC-blocking capacitors in the Doppler mode, the double-conversion technique and local oscillator (LO) chopping technique are introduced. These techniques remove the DC offset and makes the transceiver more robust to the TX to RX leakage. In addition, they also improve the noise figure (NF) by filtering out 1/f noise of the analog baseband. The FMCW radar is realized using a direct-conversion receiver and a chirp generator. The chirp generator consists of a frequency sweep generator (FSG) and a fractional-N phase-locked loop (PLL). All the analog baseband components including a programable gain amplifiers (PGA) and 1/R<sup>4</sup> range compensation filters are integrated on the chip as well as a bandgap and low-dropout regulators. The operating frequency is from 9.7 to 12.3 GHz, which consumes 216 mW in Doppler mode and 201.6 mW in FMCW mode from a 1.2-V supply voltage. The maximum chirp bandwidth is 750 MHz and the maximum receiver gain is 76 dB with 6-dB gain step. The chip size of the transceiver is 7.68 mm<sup>2</sup> including all the pads.https://ieeexplore.ieee.org/document/9167189/CMOSX-bandfully-integrated transceiverDoppler radarFMCW radardual-mode radar |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Keum-Won Ha Jeong-Yun Lee Goo-Han Ko Young-Jin Kim Jeong-Geun Kim Donghyun Baek |
spellingShingle |
Keum-Won Ha Jeong-Yun Lee Goo-Han Ko Young-Jin Kim Jeong-Geun Kim Donghyun Baek Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator IEEE Access CMOS X-band fully-integrated transceiver Doppler radar FMCW radar dual-mode radar |
author_facet |
Keum-Won Ha Jeong-Yun Lee Goo-Han Ko Young-Jin Kim Jeong-Geun Kim Donghyun Baek |
author_sort |
Keum-Won Ha |
title |
Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator |
title_short |
Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator |
title_full |
Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator |
title_fullStr |
Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator |
title_full_unstemmed |
Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator |
title_sort |
fully integrated dual-mode x-band radar transceiver using configurable receiver and local oscillator |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
In this paper, a fully-integrated dual-mode X-band radar transceiver that supports Doppler radar and frequency modulated continuous wave (FMCW) radar is proposed. To remove large off-chip DC-blocking capacitors in the Doppler mode, the double-conversion technique and local oscillator (LO) chopping technique are introduced. These techniques remove the DC offset and makes the transceiver more robust to the TX to RX leakage. In addition, they also improve the noise figure (NF) by filtering out 1/f noise of the analog baseband. The FMCW radar is realized using a direct-conversion receiver and a chirp generator. The chirp generator consists of a frequency sweep generator (FSG) and a fractional-N phase-locked loop (PLL). All the analog baseband components including a programable gain amplifiers (PGA) and 1/R<sup>4</sup> range compensation filters are integrated on the chip as well as a bandgap and low-dropout regulators. The operating frequency is from 9.7 to 12.3 GHz, which consumes 216 mW in Doppler mode and 201.6 mW in FMCW mode from a 1.2-V supply voltage. The maximum chirp bandwidth is 750 MHz and the maximum receiver gain is 76 dB with 6-dB gain step. The chip size of the transceiver is 7.68 mm<sup>2</sup> including all the pads. |
topic |
CMOS X-band fully-integrated transceiver Doppler radar FMCW radar dual-mode radar |
url |
https://ieeexplore.ieee.org/document/9167189/ |
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1724182311060111360 |