可用於監測呼吸心跳之頻率調變連續波/單脈衝雷達

FMCW and monopulse radar for heart beat and respiration monitoring

葉烜瑋(Hsuan-Wei Yeh)

指導教授 ： 盧信嘉

國立臺灣大學/電機資訊學院/電子工程學研究所/碩士(2014年)

https://doi.org/10.6342/NTU.2014.01225

摘要

本論文是以TSMC 0.18μm CMOS製程，搭配兩種被動製程，分別為低溫共燒陶瓷(lowtemperatureco-firedceramic,LTCC)製程，以及玻璃基板積體被動元件(glass substrate integrated passive device, GIPD)製程，並利用覆晶技術(flip-chip)結合主被動製程來實現可用於監測呼吸心跳之頻率調變連續波/單脈衝雷達系統。
本文中將傳統FMCW單脈衝雷達系統和包含單邊帶混波器(single side band, SSBmixer)的單脈衝雷達系統在輸出、接收以及解調各步驟時的訊號做各種分析，以了解單邊帶混波器的鏡像斥拒比(image rejection ratio, IRR)對於系統解決零點問題(null point)的影響。
我們採用了傳統的雷達系統以及在雷達發射端改用單邊帶混波器的雷達系統兩種，藉以比較與改善雷達系統會發生的零點問題，並在接收端採取單脈衝雷達系統，藉以取得Sigma與Delta兩種訊號，如此不僅可以得到目標物體的速度與距離之外還可以量測目標物體與雷達系統的相對角度。

關鍵字

單脈衝雷達 ； 零點 ； 頻率調變連續波

並列摘要

In this thesis, a dual mode radar that includes frequency modulated continuous wave mode and monopulse radar mode for heart beat and respiration monitoring is fabricated by combining active and passive processes. The active process used is TSMC 0.18 μm CMOS and the two passive processes used are low temperature co-fired ceramic (LTCC) and glass substrate integrated passive device (GIPD). We used flip-chip interconnects to combine the T18 chips and these two kinds of substrates.
This thesis analyzes the output signal, the received signal and the demodulated signal for the traditional FMCW monopulse radar system and the monopulse radar system with a single side band mixer. The effect of image rejection ratio of the single side band mixer in solving the null point problem in CW radar is also analyzed.
To compare and reduce the null point problem of the CW radar system, we adopted the traditional radar system and the radar system with a single side band mixer in transmitting path. Sigma and Delta signals are also obtained by using the monopulse radar structure in the receiver path. So, we can not only obtaining the speed and the distance of the target, but measuring the direction of the target.

並列關鍵字

monopulse radar ； null point ； frequency modulated continuous wave (FMCW)

參考文獻

[1] Jri Lee, Yenlin Huang, Y. Chen, Hsinchia Lu, and Chiajung Chang, "A low-power fully integrated 60GHz transceiver system with OOK modulation and on-board antenna assembly," 2009 International Solid-State Circuits Conference, pp. 316-317, Feb. 2009.

[2] Jri Lee, Yi-An Li, Meng-Hsiung Hung, and Shih-Jou Huang, "A fully-integrated 77-GHz FMCW radar transceiver in 65-nm CMOS technology," IEEE Journal of Solid-State Circuits, vol. 45, no. 12, pp. 2746 - 2756, Dec. 2010.

[3] T.-Y.J. Kao, A.Y.-K. Chen, Yan Yan, Tze-Min Shen, and Jenshan Lin, " A flip-chip-packaged and fully integrated 60 GHz CMOS micro-radar sensor for heartbeat and mechanical vibration detections," 2012 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), pp. 443 - 446, June 2012.

[4] Che-Chung Kuo, Hsin-Chia Lu, Po-An Lin, Chen-Fang Tai, Yue-Ming Hsin, and Huei Wang, "A fully SiP integrated V-band butler matrix end-fire beam-switching transmitter using flip-chip assembled CMOS chips on LTCC," IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 5, pp. 1424 - 1436, May 2012.

[5] J.C. Lin, "Noninvasive microwave measurement of respiration," Proceedings of the IEEE, vol. 63, p. 1530, Oct. 1975.