Wideband and Unidirectional Folded Antenna for Heart Failure Detection System

Rezaeieh, S. Ahdi and Abbosh, A. M. (2014) Wideband and Unidirectional Folded Antenna for Heart Failure Detection System. IEEE Antennas and Wireless Propagation Letters, 13 844-847. doi:10.1109/LAWP.2014.2320495


Author Rezaeieh, S. Ahdi
Abbosh, A. M.
Title Wideband and Unidirectional Folded Antenna for Heart Failure Detection System
Journal name IEEE Antennas and Wireless Propagation Letters   Check publisher's open access policy
ISSN 1536-1225
1548-5757
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1109/LAWP.2014.2320495
Open Access Status Not yet assessed
Volume 13
Start page 844
End page 847
Total pages 4
Place of publication Piscataway, NJ United States
Publisher Institute of Electrical and Electronics Engineers
Language eng
Abstract A wideband folded antenna, which is specifically designed for an early heart failure detection system operating at the ultra-high frequency (UHF) band, is presented. The design procedure starts with a planar structure that includes a loop antenna, a dual monopole, and a loaded parasitic patch. To significantly reduce the size of the antenna and achieve directional radiation as needed for the intended application, the planar structure is folded to form a three-dimensional antenna with the dimensions, 0.1 lambda x 0.29 lambda x 0.09 lambda, where lambda is the wavelength at the lowest operating frequency. The final tested antenna achieves a peak gain of 4.2 dBi, front-to-back ratio of 7-13 dB and efficiency of more than 87% over 62% fractional bandwidth (560-1060 MHz) at 10-dB return-loss reference. The antenna in addition to a compact microwave transceiver and an adjustable platform are then used to build a monostatic-radar-based heart failure detection system. The system is tested on an artificial torso phantom to verify the potential of such a system in the early detection of heart failure. The used imaging algorithm and obtained promising results are reported in the letter.
Formatted abstract
 A wideband folded antenna, which is specifically designed for an early heart failure detection system operating at the ultra-high frequency (UHF) band, is presented. The design procedure starts with a planar structure that includes a loop antenna, a dual monopole, and a loaded parasitic patch. To significantly reduce the size of the antenna and achieve directional radiation as needed for the intended application, the planar structure is folded to form a three-dimensional antenna with the dimensions $0.1lambdatimes 0.29lambdatimes 0.09lambda$ , where $lambda$ is the wavelength at the lowest operating frequency. The final tested antenna achieves a peak gain of 4.2 dBi, front-to-back ratio of 7–13 dB and efficiency of more than 87% over 62% fractional bandwidth (560–1060 MHz) at 10-dB return-loss reference. The antenna in addition to a compact microwave transceiver and an adjustable platform are then used to build a monostatic-radar-based heart failure detection system. The system is tested on an artificial torso phantom to verify the potential of such a system in the early detection of heart failure. The used imaging algorithm and obtained promising results are reported in the letter
Keyword Loop antenna
Three dimensional antenna
Ultra high frequency (UHF) antenna
Unidirectional antenna
Microwave
Sensor
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Information Technology and Electrical Engineering Publications
 
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