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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1521
Simulation Measurement for Detection of the Breast Tumors
by Using Ultra-Wideband Radar-Based Microwave Technique
Ali Recai Celik1
1Doctor, Dicle University Electrical and Electronics Engineering Department, Turkey
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - It is known that early detection of the breast
tumors increases the success rate in the treatment of cancer.
Therefore, a number of diagnostic methods have been
developed to detect tumors that are small in size and deep in
location. As well as the positive aspects of each methods, there
are also some negative aspects. For this reason, works for the
development of new methods are ongoing. Using of the
microwaves for detection of thebreastcancertumorshasbeen
a subject of intense research in recent years. Because, there
are significant differences in the electrical properties of the
malignant breast tumors and normal breast tissue in the
microwave frequencies. Byusingthesedifferences, anyone can
have knowledge about theexistence, dimensionandpositionof
the tumor. There are many methodsthatmicrowavesareused,
and the most popular and successful method is the ultra-
wideband radar-based method. In this method, the breast is
illuminated with ultra-wideband microwave signals and the
scattering parameters (S11) of the reflected signals from the
breast are recorded. The differences of thereflectedsignals for
tumorous and non-tumorous cases indicate the presence of
tumor. In this paper, a hemi-spherical breast phantom that
consisted low relative permittivity and conductivity material
to represent the healthy tissue and high relative permittivity
and conductivity material to represent the malignant breast
tumor is formed by usingHigh FrequencyStructuralSimulator
software (HFSS). An ultra-wideband and directional antenna
that designed before is used for the simulation measurements.
According to simulated results, S11 values increase when the
tumor-mimicking object is present. Also, S11 increases as the
antenna gets close to the object.
Key Words: Breast cancer, Microwave techniques, HFSS,
Ultra-wideband, Radar-based.
1. INTRODUCTION
The detection of the breast cancer at the early stages
provides decreasing the rates of death from this disease [1].
It is known that the tumor tissue occurs when malignant
cells multiply uncontrolled. Then,itmayspreadtoother part
of the body and prevent them from functioning. For this
reason, detecting the malignant tumors when they are small
in size and deep in location is very critical for the successful
treatment. There are many breast tumors detecting
techniques such as X-ray mammography, magnetic
resonance imaging, ultrasound technique and digital
tomosynthesis [2,3].
Although these methods are very importantandeffective,
but they don’t meet the ideal requirements which can be
summarized as low health hazard, sensitivity to malignant
tumor, determining the disease at a medicable stage,
screening as fast as possible and involving minimal
discomfort [4]. Hence, researchers work to develop new
methods for breast cancer detection.
Because of the microwave signals are non-ionizing, and
microwave detection system is non-destructive, safer and
less expensive than existing methods, ultra-wideband
(UWB) radar-based microwave technique that proposed by
Hagness et al has been one of the emerging electromagnetic
methods last decades [5]. This technique is based on
determining the differences in electrical properties (relative
permittivity and conductivity) of malignant tumors and
healthy breast tissue [6].
In this method, the breast is illuminated with ultra-
wideband microwave signals. The lower frequency band
ensures enough penetration depth, and the higher band
provides sufficient resolution for the created images. Thus,
deeply buried and small size tumor can be detected based on
the lower and higher frequency of the UWB bands [7].
UWB radar-based microwave technique is classified as
monostatic, bistatic and multistatic systems according to the
measurement configurations. The representative view of a
monostatic measurement is showninFigure1asanexample.
In this measurement type, the same antenna is used to send
and receive the signals, and target is positioned for
illumination.
Fig -1: Example of a monostatic measurement [8]
2. SIMULATION MEASUREMENT
2.1 UWB Directional Antenna
In this study, the using of the monostatic measurement
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1522
configuration is preferred and the system is developed by
using High Frequency Structural Simulator (HFSS) software.
HFSS is based on full-wave finite elements method and
widely used in the analysis of electromagnetic structures is
utilized [9]. The key component of the UWB radar-based
microwave technique is the antenna that is used to radiate
and receive the UWB pulses. This system requires compact,
UWB, stable and high directive antennas as their radiating
and receiving sensors [10].
In the measurement, a planar monopole antenna which
was developed in [11] is used to perform the task of both
sending and receiving the microwave signals.Thisantennais
a modified square planar monopole antenna having broad
frequency range and high directivity properties, and it has
been proposed for using in UWB radar-based microwave
imaging. The design parameters and top view of the
fabricated antenna are shown in Figure 2.
The returnloss and radiationpatternresultsoftheantenna
are given in Figure 3 and 4, respectively. As it is shown from
these figures, the size of theproposedantennais50x40mm2.
It has broad frequency range between 3 and 8 GHz, and in
this frequency it has stable and directive radiation patterns.
2.2 Measurement Configuration
A simple hemi-spherical phantom structure with 6 cm
radius is created to mimic the breast tissue, and a spherical
structure with 5 mm radius is inserted in the phantom to
mimic the tumor by using the HFSS program. The dielectric
constants (εr) of the healthy breast tissue and tumor are 64
and 4.8, respectively, and the conductivity (σ) of the healthy
breast tissue and tumorare0.5S/mand11S/m,respectively,
for the constant 7 GHz frequency [12,13]. These values are
taken as the reference in this study.
The view of the measurement system having antenna and
simulated breast phantomwithtumorisgivenintheFigure5.
It is seen from this figure that the phantom is placed so that
the direction of the main radiation lobe of the antenna is as
perpendicular as to the phantom.
Fig -2: Design parameters of the used antenna [11]
Fig -3: Return loss of the used antenna
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1523
Fig -4: Radiation patterns of the used antenna
Fig -5: The view of the system when tumor is at the (x=20mm, y=20mm, z=20mm) points
3. RESULTS AND DISCUSSIONS
Since S11 and the reflection coefficient () are related to
each other according to the Equation 1, the smaller the
magnitude of S11, the larger the reflection becomes [14].
(1)
According to the simulated return loss (S11) results for
tumorous and non-tumoroussituations are giveninFigure6.
It is clearly seen that the reflection is higher when there is
tumor in the breast phantom. Furthermore, the antenna is
rotated around the phantom in order to scan at a 360 degree
angle.
In the Figure 6, also the S11 results are given for the
situations where the antenna is the closestandfarthesttothe
tumor. As expected, it is seen that reflection increases as the
antenna approaches to the tumor.
4. CONCLUSIONS
This paper has demonstratedthe performanceoftheultra-
wideband radar-based microwave technique for the
detection of the breast tumor by using HFSS software. A
simple simulation system including a hemi-spherical breast
phantom which has the similar electrical properties with the
breast fat and tumor has been designed to achieve purpose.
An UWB planar monopole antenna which is compactandhas
directional radiation pattern has been used in the simulation
measurements.
Based on the return loss results, it is concluded that the
reflection increases when the antenna gets close to the
tumor; it decreases when the antenna is away from the
tumor. Therefore, it can be said that the UWB radar-based
microwave technique for detecting the tumor tissue is a
successfulmethod,andthecompact,UWB,directiveantennas
are good choices for using in this system.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1524
Fig -6: Return loss results of tumorous and non-tumorous situation
REFERENCES
[1] World Health Organization. Available online:
http://www.who.int/cancer/breast_cancer_awareness/
en
[2] L. Wang, “Early Diagnosis of BreastCancer”,Sensors,vol.
17, pp. 1572, 2017.
[3] H., Rahman, H. Arshad, R., Mahmud, Z.R., Mahayuddin,
W. K., Obeidy, “A framework to visualize 3d breast
tumor using x-rayvisiontechniqueinmobileaugmented
reality”, Journal of Telecommunication, Electronic and
Computer Engineering, vol. 9(2-11), pp. 145–149,2017.
[4] J. P. Stang, W. T. Joines, Q.H. Liu, G. A. Ybarra, R. T.
George, M. Yuan and I. Leonhardt, “3D antenna array
design measurement results and image chamber
modeling”, in Conf. Rec. Antennas and Propagation
Society International Symposium, USA, 2009, pp. 3–6.
[5] S. C. Hagness, A. Taflove and J. E.Bridges, “Three-
dimensional FDTD analysis of a pulsed microwave
confocal system for breast cancerdetection: designofan
antenna-array element”,IEEETransactionsonAntennas
and Propagation vol. 47, pp. 783–791, 1999, doi:
10.1109/8.774131.
[6] E. C. Fear, X. Li, S. C. Hagness and M. A. Stuchly, “Confocal
microwave imaging for breast cancer detection:
localization of tumors in three dimensions”, IEEE
Transactions on Biomedical Engineering, vol. 49, pp.
812–822, 2002.
[7] X. Xiao, T. Kikkawa, “Influence of the organism interface
on the breast cancer detectionbyUWB”,AppliedSurface
Science, vol.255, pp. 597–599, 2008, doi:
10.1016/j.apsusc.2008.06.167.
[8] Bialkowski, M.E., Wang, Y. “UWB cylindrical microwave
imaging system employing virtual array antenna
concept for background effect removal”,Microwaveand
Optical Technology Letters, vol. 53(5), pp. 1100–1104,
2011.
[9] Ansys HFSS. 2014. Ansys Corporation,Canonsburg,USA.
[10] T. Hariyadi, Y. T., Huda, B. Mulyanti, “A small ultra-
wideband unidirectional microstrip antenna for
through-wall radar application”, Journal of
Telecommunication, Electronic and Computer
Engineering, vol. 8(1), pp. 25–28, 2016.
[11] A. R., Celik, “Meme tümörlerinin çok geniş bantlı radar
tabanlı mikrodalga yöntemiyle tespiti”, Ph. D. thesis,
Dicle University, Diyarbakir, Turkey, 2018.
[12] P.M., Meaney, K.D., Paulsen, A., Hartov, R.K., Crane, “An
active microwave imaging system for reconstruction of
2-D electrical propertydistributions”,IEEETransactions
on Biomedical Engineering, vol. 42, pp. 1017-1026,
1995.
[13] I.J., Craddock, R., Nilavalan, J., Leendertz, A., Preece, R.,
Benjamin, “Experimental investigation of real aperture
synthetically organised radar for breast cancer
detection”, IEEE on Antennas and Propagation Society
International Symposium, WashingtonDC,pp.179–182,
2005.
[14] C.A., Balanis, Antenna theory:analysisanddesign.Wiley,
New Jersey, USA, 2015.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1525
BIOGRAPHY
Ali R. Celik was born in Diyarbakır,
Turkey. He received the B.Sc. degree
from Gaziantep University, M.Sc.
degree from Sutcu Imam University,
and PhD degree from Dicle
University in Electrical and
Electronics Engineering .

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IRJET- Simulation Measurement for Detection of the Breast Tumors by using Ultra-Wideband Radar-Based Microwave Technique

  • 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1521 Simulation Measurement for Detection of the Breast Tumors by Using Ultra-Wideband Radar-Based Microwave Technique Ali Recai Celik1 1Doctor, Dicle University Electrical and Electronics Engineering Department, Turkey ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract - It is known that early detection of the breast tumors increases the success rate in the treatment of cancer. Therefore, a number of diagnostic methods have been developed to detect tumors that are small in size and deep in location. As well as the positive aspects of each methods, there are also some negative aspects. For this reason, works for the development of new methods are ongoing. Using of the microwaves for detection of thebreastcancertumorshasbeen a subject of intense research in recent years. Because, there are significant differences in the electrical properties of the malignant breast tumors and normal breast tissue in the microwave frequencies. Byusingthesedifferences, anyone can have knowledge about theexistence, dimensionandpositionof the tumor. There are many methodsthatmicrowavesareused, and the most popular and successful method is the ultra- wideband radar-based method. In this method, the breast is illuminated with ultra-wideband microwave signals and the scattering parameters (S11) of the reflected signals from the breast are recorded. The differences of thereflectedsignals for tumorous and non-tumorous cases indicate the presence of tumor. In this paper, a hemi-spherical breast phantom that consisted low relative permittivity and conductivity material to represent the healthy tissue and high relative permittivity and conductivity material to represent the malignant breast tumor is formed by usingHigh FrequencyStructuralSimulator software (HFSS). An ultra-wideband and directional antenna that designed before is used for the simulation measurements. According to simulated results, S11 values increase when the tumor-mimicking object is present. Also, S11 increases as the antenna gets close to the object. Key Words: Breast cancer, Microwave techniques, HFSS, Ultra-wideband, Radar-based. 1. INTRODUCTION The detection of the breast cancer at the early stages provides decreasing the rates of death from this disease [1]. It is known that the tumor tissue occurs when malignant cells multiply uncontrolled. Then,itmayspreadtoother part of the body and prevent them from functioning. For this reason, detecting the malignant tumors when they are small in size and deep in location is very critical for the successful treatment. There are many breast tumors detecting techniques such as X-ray mammography, magnetic resonance imaging, ultrasound technique and digital tomosynthesis [2,3]. Although these methods are very importantandeffective, but they don’t meet the ideal requirements which can be summarized as low health hazard, sensitivity to malignant tumor, determining the disease at a medicable stage, screening as fast as possible and involving minimal discomfort [4]. Hence, researchers work to develop new methods for breast cancer detection. Because of the microwave signals are non-ionizing, and microwave detection system is non-destructive, safer and less expensive than existing methods, ultra-wideband (UWB) radar-based microwave technique that proposed by Hagness et al has been one of the emerging electromagnetic methods last decades [5]. This technique is based on determining the differences in electrical properties (relative permittivity and conductivity) of malignant tumors and healthy breast tissue [6]. In this method, the breast is illuminated with ultra- wideband microwave signals. The lower frequency band ensures enough penetration depth, and the higher band provides sufficient resolution for the created images. Thus, deeply buried and small size tumor can be detected based on the lower and higher frequency of the UWB bands [7]. UWB radar-based microwave technique is classified as monostatic, bistatic and multistatic systems according to the measurement configurations. The representative view of a monostatic measurement is showninFigure1asanexample. In this measurement type, the same antenna is used to send and receive the signals, and target is positioned for illumination. Fig -1: Example of a monostatic measurement [8] 2. SIMULATION MEASUREMENT 2.1 UWB Directional Antenna In this study, the using of the monostatic measurement
  • 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1522 configuration is preferred and the system is developed by using High Frequency Structural Simulator (HFSS) software. HFSS is based on full-wave finite elements method and widely used in the analysis of electromagnetic structures is utilized [9]. The key component of the UWB radar-based microwave technique is the antenna that is used to radiate and receive the UWB pulses. This system requires compact, UWB, stable and high directive antennas as their radiating and receiving sensors [10]. In the measurement, a planar monopole antenna which was developed in [11] is used to perform the task of both sending and receiving the microwave signals.Thisantennais a modified square planar monopole antenna having broad frequency range and high directivity properties, and it has been proposed for using in UWB radar-based microwave imaging. The design parameters and top view of the fabricated antenna are shown in Figure 2. The returnloss and radiationpatternresultsoftheantenna are given in Figure 3 and 4, respectively. As it is shown from these figures, the size of theproposedantennais50x40mm2. It has broad frequency range between 3 and 8 GHz, and in this frequency it has stable and directive radiation patterns. 2.2 Measurement Configuration A simple hemi-spherical phantom structure with 6 cm radius is created to mimic the breast tissue, and a spherical structure with 5 mm radius is inserted in the phantom to mimic the tumor by using the HFSS program. The dielectric constants (εr) of the healthy breast tissue and tumor are 64 and 4.8, respectively, and the conductivity (σ) of the healthy breast tissue and tumorare0.5S/mand11S/m,respectively, for the constant 7 GHz frequency [12,13]. These values are taken as the reference in this study. The view of the measurement system having antenna and simulated breast phantomwithtumorisgivenintheFigure5. It is seen from this figure that the phantom is placed so that the direction of the main radiation lobe of the antenna is as perpendicular as to the phantom. Fig -2: Design parameters of the used antenna [11] Fig -3: Return loss of the used antenna
  • 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1523 Fig -4: Radiation patterns of the used antenna Fig -5: The view of the system when tumor is at the (x=20mm, y=20mm, z=20mm) points 3. RESULTS AND DISCUSSIONS Since S11 and the reflection coefficient () are related to each other according to the Equation 1, the smaller the magnitude of S11, the larger the reflection becomes [14]. (1) According to the simulated return loss (S11) results for tumorous and non-tumoroussituations are giveninFigure6. It is clearly seen that the reflection is higher when there is tumor in the breast phantom. Furthermore, the antenna is rotated around the phantom in order to scan at a 360 degree angle. In the Figure 6, also the S11 results are given for the situations where the antenna is the closestandfarthesttothe tumor. As expected, it is seen that reflection increases as the antenna approaches to the tumor. 4. CONCLUSIONS This paper has demonstratedthe performanceoftheultra- wideband radar-based microwave technique for the detection of the breast tumor by using HFSS software. A simple simulation system including a hemi-spherical breast phantom which has the similar electrical properties with the breast fat and tumor has been designed to achieve purpose. An UWB planar monopole antenna which is compactandhas directional radiation pattern has been used in the simulation measurements. Based on the return loss results, it is concluded that the reflection increases when the antenna gets close to the tumor; it decreases when the antenna is away from the tumor. Therefore, it can be said that the UWB radar-based microwave technique for detecting the tumor tissue is a successfulmethod,andthecompact,UWB,directiveantennas are good choices for using in this system.
  • 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1524 Fig -6: Return loss results of tumorous and non-tumorous situation REFERENCES [1] World Health Organization. Available online: http://www.who.int/cancer/breast_cancer_awareness/ en [2] L. Wang, “Early Diagnosis of BreastCancer”,Sensors,vol. 17, pp. 1572, 2017. [3] H., Rahman, H. Arshad, R., Mahmud, Z.R., Mahayuddin, W. K., Obeidy, “A framework to visualize 3d breast tumor using x-rayvisiontechniqueinmobileaugmented reality”, Journal of Telecommunication, Electronic and Computer Engineering, vol. 9(2-11), pp. 145–149,2017. [4] J. P. Stang, W. T. Joines, Q.H. Liu, G. A. Ybarra, R. T. George, M. Yuan and I. Leonhardt, “3D antenna array design measurement results and image chamber modeling”, in Conf. Rec. Antennas and Propagation Society International Symposium, USA, 2009, pp. 3–6. [5] S. C. Hagness, A. Taflove and J. E.Bridges, “Three- dimensional FDTD analysis of a pulsed microwave confocal system for breast cancerdetection: designofan antenna-array element”,IEEETransactionsonAntennas and Propagation vol. 47, pp. 783–791, 1999, doi: 10.1109/8.774131. [6] E. C. Fear, X. Li, S. C. Hagness and M. A. Stuchly, “Confocal microwave imaging for breast cancer detection: localization of tumors in three dimensions”, IEEE Transactions on Biomedical Engineering, vol. 49, pp. 812–822, 2002. [7] X. Xiao, T. Kikkawa, “Influence of the organism interface on the breast cancer detectionbyUWB”,AppliedSurface Science, vol.255, pp. 597–599, 2008, doi: 10.1016/j.apsusc.2008.06.167. [8] Bialkowski, M.E., Wang, Y. “UWB cylindrical microwave imaging system employing virtual array antenna concept for background effect removal”,Microwaveand Optical Technology Letters, vol. 53(5), pp. 1100–1104, 2011. [9] Ansys HFSS. 2014. Ansys Corporation,Canonsburg,USA. [10] T. Hariyadi, Y. T., Huda, B. Mulyanti, “A small ultra- wideband unidirectional microstrip antenna for through-wall radar application”, Journal of Telecommunication, Electronic and Computer Engineering, vol. 8(1), pp. 25–28, 2016. [11] A. R., Celik, “Meme tümörlerinin çok geniş bantlı radar tabanlı mikrodalga yöntemiyle tespiti”, Ph. D. thesis, Dicle University, Diyarbakir, Turkey, 2018. [12] P.M., Meaney, K.D., Paulsen, A., Hartov, R.K., Crane, “An active microwave imaging system for reconstruction of 2-D electrical propertydistributions”,IEEETransactions on Biomedical Engineering, vol. 42, pp. 1017-1026, 1995. [13] I.J., Craddock, R., Nilavalan, J., Leendertz, A., Preece, R., Benjamin, “Experimental investigation of real aperture synthetically organised radar for breast cancer detection”, IEEE on Antennas and Propagation Society International Symposium, WashingtonDC,pp.179–182, 2005. [14] C.A., Balanis, Antenna theory:analysisanddesign.Wiley, New Jersey, USA, 2015.
  • 5. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 11 | Nov 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1525 BIOGRAPHY Ali R. Celik was born in Diyarbakır, Turkey. He received the B.Sc. degree from Gaziantep University, M.Sc. degree from Sutcu Imam University, and PhD degree from Dicle University in Electrical and Electronics Engineering .