Journal
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume 62, Issue 10, Pages 2516-2525Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2015.2434956
Keywords
Average specific absorption rate (ASAR); biological tissues; breast cancer detection; dual-polarization; flexible antenna; single polarization; wideband antenna
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada
- Healthcare Support through Information Technology Enhancements
Ask authors/readers for more resources
Radar-based microwave imaging has been widely studied for breast cancer detection in recent times. Sensing dielectric property differences of tissues has been studied over a wide frequency band for this application. We design single-and dual-polarization antennas for wireless ultrawideband breast cancer detection systems using an inhomogeneous multilayer model of the human breast. Antennas made from flexible materials are more easily adapted to wearable applications. Miniaturized flexible monopole and spiral antennas on a 50-mu m Kapton polyimide are designed, using a high-frequency structure simulator, to be in contact with biological breast tissues. The proposed antennas are designed to operate in a frequency range of 2-4 GHz (with reflection coefficient (S-11) below -10 dB). Measurements show that the flexible antennas have good impedancematching when in different positions with different curvature around the breast. Our miniaturized flexible antennas are 20 mm x 20 mm. Furthermore, two flexible conformal 4x4 ultrawideband antenna arrays (single and dual polarization), in a format similar to that of a bra, were developed for a radar-based breast cancer detection system. By using a reflector for the arrays, the penetration of the propagated electromagnetic waves from the antennas into the breast can be improved by factors of 3.3 and 2.6, respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available