A novel direct-conversion structure for non-contact vital sign detection system

被引：0
|
作者：
Long, Jiang [1 ]
Gu, Changzhan [1 ]
Tao, Yong [1 ]
Huangfu, Jiangtao [1 ]
Qiao, S. [2 ]
Cui, W. Z. [3 ]
Ma, W. [3 ]
Ran, Lixin [1 ]
机构：
[1] Zhejiang Univ, Dept Info Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ City Coll, Hangzhou 310027, Zhejiang, Peoples R China
[3] Xian Inst Space Radio Technol, Natl Key Lab Space Microwave Technol, Xian 710000, Peoples R China
来源：
ISAPE 2008: THE 8TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND EM THEORY, PROCEEDINGS, VOLS 1-3 | 2008年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, an analysis on non-contact vital sign detection system is presented. It is concluded that the null point and dc-offset are related, so that the associated problems can be solved. Based on this principle, a novel structure of direct-conversion transceiver, which contains a tuneable phase shifter, is proposed to achieve a better performance. Two sets of simulations are employed to demonstrate the new structure. With this structure, dc-offset and null point can be eliminated and it is very easy to reach the optimal detection.
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收藏
页码：1270 / +
页数：2
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