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A miniaturized directional antenna for microwave breast imaging applications

Published online by Cambridge University Press:  25 September 2017

Md Zulfiker Mahmud ,
Mohammad Tariqul Islam ,
Md Naimur Rahman Open the ORCID record for Md Naimur Rahman [Opens in a new window] ,
Touhidul Alam  and
Md Samsuzzaman
Md Zulfiker Mahmud*
Affiliation:
Department of Electrical Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Mohammad Tariqul Islam
Affiliation:
Department of Electrical Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Md Naimur Rahman
Affiliation:
Department of Electrical Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Touhidul Alam
Affiliation:
Department of Electrical Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Md Samsuzzaman
Affiliation:
Department of Computer and Communication Engineering, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh
*
Corresponding author: M.Z. Mahmud Email: zulfikerm@siswa.ukm.edu.my
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Abstract

A novel compact directional antenna with improved gain is proposed for microwave breast imaging (MBI) applications. The radiating fins are modified by etching several slots to make the antenna compact and enhance antenna performance in terms of bandwidth, gain, efficiency, and directivity. Several parameters are studied and optimized to frequency from 3.1 to 6.5 GHz, which is typically used in the breast imaging system. The electrical length of the antenna is 0.39λ × 0.46λ × 0.01λ at the lower frequency band. The result shows that the antenna exhibits −10 dB impedance bandwidth of 4.3 GHz (2.7–7 GHz) with directional radiation pattern. The peak gain of the proposed prototype is 7.8 dBi and fractional bandwidth is 92%. The time domain results show that the fidelity factor for face to face is 0.92 and for side by side is 0.62, which prove the directivity and lower distortion of the signal. The proposed prototype is successfully simulated, fabricated, and measured.

Keywords

Antenna designModeling and measurementsBiomedical applications
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 10 , December 2017 , pp. 2013 - 2018
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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References

REFERENCES

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