Design and evaluation of medical microwave radiometer for measuring tissue temperature

被引：2
|
作者：
Ravi, Vidyalakshmi M. [1 ]
Akki, Rachana S. [1 ,2 ]
Sugumar, Sathyapriya [1 ]
Venkata, Krishnamurthy C. [3 ]
Arunachalam, Kavitha [1 ]
机构：
[1] IIT Madras, Dept Engn Design, Chennai, Tamil Nadu, India
[2] RV Coll Engn, Dept Elect & Instrumentat Engn, Bengaluru, Karnataka, India
[3] IIT Madras, Dept Phys, Chennai, Tamil Nadu, India
来源：
2019 URSI ASIA-PACIFIC RADIO SCIENCE CONFERENCE (AP-RASC) | 2019年
关键词：
microwave; radiometry; thermometry; tissue; OPTIMIZATION;
D O I：
10.23919/ursiap-rasc.2019.8738630
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：
Medical microwave radiometry is a passive non-invasive technique for measuring tissue temperature gradient in the human body. Design and evaluation of a medical microwave radiometer centered at 1.3 GHz with 330 MHz bandwidth is presented here. An active noise source with noise equivalent temperature of 303 K is used for temperature calibration. Radiometer characterization results are presented for matched load maintained at thermal steady state and hot spot in a tissue phantom. Radiometer measurements recorded using a dielectric loaded waveguide and substrate integrated waveguide (SIW) antenna with a slot demonstrated the ability to measure the temperature gradient at depth.
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页数：3
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