79 GHz Active Array FMCW Radar System on Low-Cost FR-4 Substrates

被引：5
|
作者：
Kim, Jun-Seong [1 ]
Kim, Hyun-Jin [1 ]
Shin, Mingeon [1 ]
Park, Jae-Hyun [1 ]
Kwon, Oh-Yun [2 ]
Song, Reem [3 ]
Lee, Sungho [4 ]
Nam, Sangwook [5 ]
Kim, Byung-Sung [3 ]
机构：
[1] Sungkyunkwan Univ, Dept Elect & Comp Engn, Coll Informat & Commun Engn, Suwon 16419, South Korea
[2] Hyundai Motor Co, Res & Dev Div, Hwaseong 18279, South Korea
[3] Sungkyunkwan Univ, Coll Informat & Commun Engn, Suwon 16419, South Korea
[4] Korea Elect Technol Inst, SoC Platform Res Ctr, Gyeonggi 13488, South Korea
[5] Seoul Natl Univ, Inst New Media Commun, Coll Elect & Comp Engn, Seoul 08826, South Korea
来源：
IEEE ACCESS | 2020年 / 8卷
基金：
新加坡国家研究基金会;
关键词：
Radar; Substrates; Radar antennas; Microstrip antenna arrays; System-on-chip; Mixers; Adders; Multi-channel radar; active array; CMOS; millimeter-wave (mm-wave) packaging; FR-4; high ratio frequency multiplier; on-chip monopole feeder; ANTENNA-ARRAY; FREQUENCY;
D O I：
10.1109/ACCESS.2020.3039513
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This work, for the first time to our best knowledge, presents a W-band multi-channel frequency-modulated continuous-wave (FMCW) radar system on low-cost FR-4 substrates. A center-fed patch array antenna on an FR-4 substrate can achieve a maximum gain of 10.8 dBi. It is enabled by aperture coupled feeding using an on-chip feeder implemented on a CMOS radar transmitter (Tx) and receiver (Rx). The proposed radar system consists of one Tx and four Rx channels placed in the back cavity of a microstrip array antenna like an active array antenna system. Additionally, Tx and Rx chipsets include a wideband frequency multiplier with high multiplication ratio of 63, making it easy to distribute reference FMCW waveform synthesized at a very low frequency about 1.25 GHz for 79 GHz output using direct digital synthesis (DDS). Extending the number of channels and implementing various waveforms can be easily accomplished with very good phase noise. The functionality of the proposed radar system on low-cost substrates is confirmed by distance and angle measurements.
引用
收藏
页码：213854 / 213865
页数：12
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