Open Access
Subscription Access
Open Access
Subscription Access
An Approach To A Narrow Beam Antenna For Microwave Scanning Of Stroke Affected Brain Cells
Subscribe/Renew Journal
The purpose of this study was to reduce the beamwidth of broadside quarter-wave dipole array antenna which has been proposed to scan the stroke affected brain model. Since the inhomogeneities in complex permittivity in different cells in human brain is of the order of millimeter range, the beamwidth of the scanning signal should be as narrow as possible in the near field region of the transmitting system to achieve resolution required for medical purpose. Two different techniques have been undertaken here for the curtailment of beamwidth of near field pattern of broadside quarter-wave dipole array antenna. In the first method, beamwidth of the interrogating wave is studied for different values of transmitting frequency of the system from 2.4 GHz to 8 GHz keeping the number of array element fixed that results in reduction of beamwidth with increase in frequency. In the 2ndapproach, decrease of beamwidth is observed with increase in the number of array elements when the transmitting signal frequency is kept constant at 5 GHz.
Keywords
Brain Stroke, Dipole Array Antenna, Microwave, Beamwidth, Field Pattern, Complex Permittivity.
User
Subscription
Login to verify subscription
Font Size
Information
- S. Y. Semenov and D. R. Corfield, “Microwave Tomography for Brain Imaging: Feasibility Assessment for Stroke Detection,” International Journal of Antennas and Propagation, vol. 2008, Article ID254830,2008.
- R. Scapaticci, L. Di Donato, I. Catapano, and L. Crocco, “A feasibility study on microwave imaging f o r brain stroke monitoring,” Progress In Electromagnetics Research B, Vol.40, 305-324, 2012.
- S. Semenov, “Microwave tomography: review of the progress towards clinical applications,” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 367, issue 1900, pp. 3021-3042, 2009.
- A.N. Datta& B. Bandyopadhyay, “ An Improved SIRTStyle Reconstruction Algorithm for Microwave
- VOL. Tomography” IEEE Transactions on Biomedical Engineering, BME-32, NO. 9, September 1985, pp.
- -723.
- S. Y. Semenov and D. R. Corfield, “Microwave Tomography for Brain Imaging: Feasibility Assessment for Stroke Detection,” International Journal of Antennas and Propagation, vol. 2008, Article ID 254830, 2008.
- E.Bilgin, A. Yapar, A.Aygun, I.Akduman, “Analysis of Matching Media Effect on Microwave Brain Stroke Imaging via a Spherically Symmetrical Head Model,” Czech Republic, July 6-9, 2015.
- K. Purkait& S. Mandal, “Multiview Microwave Tomography of Biological Body”, RTCSP National Conferrance, Electron, Vol-3, March -2011.
- S. MANDAL and K. PURKAIT,”A Modified Exact Reconstruction Algorithm for Microwave Tomography forDetection of Disease in Human Body”. ITJS,Vol – 18,F11,pp-82-92 January, 2011.
- Edward C. Jordan, Keith G. Balmain “ElectromagnetiWaves and Radiating Systems”, Prentics-Hall ElectricalEngineering Series, William L. Everitt Editor, EnglewooCliffs, New Jersey. (P: 317 to 331, & Chapter 11)
- N.Irishina, A. Torrente, “Brain Stroke Detection by Microwaves Using Prior Information from Clinical Databases,” Madrid, Spain, 2013.
- Lange’s Handbook of Chemistry, 10th ed. Section 5, pp- 5.118
Abstract Views: 530
PDF Views: 7