Near-Field Microwave Distribution Measurement With a Point Detector Base on Thermoacoustic Effect

被引:23
作者
Ding, Wenzheng [1 ]
Ji, Zhong [1 ]
Ye, Fanghao [1 ]
Lou, Cunguang [1 ]
Xing, Da [1 ]
机构
[1] S China Normal Univ, Inst Laser Life Sci, MOE Key Lab Laser Life Sci, Guangzhou 510631, Guangdong, Peoples R China
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
Antenna debugging; near-field microwave measurement; point detector; thermoacoustic (TA) effect; ultrasound; BREAST-CANCER DETECTION; DOMAIN RECONSTRUCTION; TOMOGRAPHY;
D O I
10.1109/TMTT.2015.2470253
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
We described a method to measure near-field microwave intensity by employing a point detector based on thermoacoustic effect, and have succeeded in achieving microwave field distribution of a rectangular waveguide. Furthermore, the obtained microwave radiant energy distribution was employed to obtain the microwave absorption coefficient distribution. Finally, the present measurement method was used to debug the radiation of the high-power microwave antenna, demonstrating its possible application in microwave power detection.
引用
收藏
页码:3272 / 3276
页数:5
相关论文
共 21 条
[1]   Spectroscopic thermoacoustic imaging of water and fat composition [J].
Bauer, Daniel R. ;
Wang, Xiong ;
Vollin, Jeff ;
Xin, Hao ;
Witte, Russell S. .
APPLIED PHYSICS LETTERS, 2012, 101 (03)
[2]   The dielectric relaxation of water between 0°C and 35°C [J].
Buchner, R ;
Barthel, J ;
Stauber, J .
CHEMICAL PHYSICS LETTERS, 1999, 306 (1-2) :57-63
[3]   Thermoacoustic resonance effect and circuit modelling of biological tissue [J].
Gao, Fei ;
Zheng, Yuanjin ;
Feng, Xiaohua ;
Ohl, Claus-Dieter .
APPLIED PHYSICS LETTERS, 2013, 102 (06)
[4]   Microwave-acoustic phasoscopy for tissue characterization [J].
Gao, Fei ;
Zheng, Yuanjin ;
Wang, Dongfang .
APPLIED PHYSICS LETTERS, 2012, 101 (04)
[5]   Multifrequency microwave-induced thermal acoustic imaging for breast cancer detection [J].
Guo, Bin ;
Li, Jian ;
Zrnuda, Henry ;
Sheplak, Mark .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2007, 54 (11) :2000-2010
[6]   Quantitative thermoacoustic tomography: Recovery of conductivity maps of heterogeneous media [J].
Huang, Lin ;
Yao, Lei ;
Liu, Lixin ;
Rong, Jian ;
Jiang, Huabei .
APPLIED PHYSICS LETTERS, 2012, 101 (24)
[7]   Thermoacoustic computed tomography-technical considerations [J].
Kruger, RA ;
Reinecke, DR ;
Kruger, GA .
MEDICAL PHYSICS, 1999, 26 (09) :1832-1837
[8]   Ultrashort Microwave-Induced Thermoacoustic Imaging: A Breakthrough in Excitation Efficiency and Spatial Resolution [J].
Lou, Cunguang ;
Yang, Sihua ;
Ji, Zhong ;
Chen, Qun ;
Xing, Da .
PHYSICAL REVIEW LETTERS, 2012, 109 (21)
[9]   Effect of excitation pulse width on thermoacoustic signal characteristics and the corresponding algorithm for optimization of imaging resolution [J].
Lou, Cunguang ;
Nie, Liming ;
Xu, Dong .
JOURNAL OF APPLIED PHYSICS, 2011, 110 (08)
[10]   Micromachined thermocouple microwave detector by commercial CMOS fabrication [J].
Milanovic, V ;
Gaitan, M ;
Zaghloul, ME .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (05) :550-553