Reflectarray antenna for breast cancer detection and biomedical applications

Hasan, Khaled; Hadidy, Mohamed El; Morsi, Hisham

doi:10.1109/mecap.2016.7790123

Cited by 3 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These reflectors allow realizing low profile antennas and improve radiation patterns while preserving their (a) (b) (c) Figure 19. Ultrawideband planar antennas: (a) elliptical monopole antenna with reflector (60 × 60 mm 2 ) [56], (b) bowtie antenna with high impedance surface (HIS) [58], and (c) DR-cell and reflectarray antenna [59]. electromagnetic properties.…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

“…Figure 19(b) shows an example of this HIS reflector. Another similar technique is presented in [59] as can been seen in Figure 19(c). Hasan et al [59] designed a very directive reflectarray antenna (RA), which consists of two main parts: feeding part, which feeds cells of the RA on the reflection surface, and reflection surface that contains the unit-cell.…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

“…Another similar technique is presented in [59] as can been seen in Figure 19(c). Hasan et al [59] designed a very directive reflectarray antenna (RA), which consists of two main parts: feeding part, which feeds cells of the RA on the reflection surface, and reflection surface that contains the unit-cell. The design employs Double-Ring (DR) elements as a unit-cell for the reflection surface to resonate at 2.2 GHz aiming at high penetration for human body tissues and fat.…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

“…The radiated EM fields from the RA and horn antennas are applied to a women breast model, and the results of this study show that the RA provides much better performance than the horn antenna from the special scanning resolution, penetration depth (penetration depth in the case of RA is much larger than the penetration depth in the case of horn antenna) and the power loss distribution. [59], (b) penetration depth in the women breast model using a horn antenna [59], and, (c) penetration depth in the women breast model using a RA [59].…”

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

See 3 more Smart Citations

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

Borja¹,

Tirado‐Méndez²,

Jardon-Aguilar³

2018

PIER B

View full text Add to dashboard Cite

Abstract-In the last decades, microwave imaging has been a new area of research due to its many advantages over current imaging systems. Microwave imaging system is used for in-depth inspection of biological tissues. The test provides the identification of morphological changes in these biological tissues, as well as their locations. The emerging Ultra-Wideband (UWB) microwave imaging gives better result with the main advantage of using non-ionizing radiation. In these systems, antennas play a very important role, and as such, their optimization has become a very important topic because the device is placed close to the human body. Thus, many aspects are of great importance in the design of the antennas starting from the material with which it is constructed, its dimensions, operation bandwidth, human body influence on the antenna parameters, short-pulse propagation, etc. Recent research has shown several efforts in improving the electromagnetic sensors used in these systems, either as individual or array elements. In this paper, we provide an overview of the most relevant developments in the field of UWB high directivity sensors used in microwave imaging systems.

show abstract

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

Section: Uwb Antennas In Microwave Imaging Systemsmentioning

confidence: 99%

See 2 more Smart Citations

An Overview of Uwb Antennas for Microwave Imaging Systems for Cancer Detection Purposes

Borja¹,

Tirado‐Méndez²,

Jardon-Aguilar³

2018

PIER B

View full text Add to dashboard Cite

show abstract

“…However, in all cases, the system requires high efficiency, high gain, and compatibility to penetrate the human body [3]. To date, many UWB antennas for MWI breast imaging have been reported: compact planar UWB antenna [22], modified antipodal Vivaldi antenna [3], hemispherical antenna [17], reflectarray antenna [23], flexible monopole antenna [7], circular polarized radial line slot array antenna [24], and many more.…”

Section: Introductionmentioning

confidence: 99%

A Modified Compact Flexible Vivaldi Antenna Array Design for Microwave Breast Cancer Detection

2022

View full text Add to dashboard Cite

In this paper, a compact, flexible Vivaldi antenna is designed, and an array of nine identical antennas of this type is used as a microwave breast imaging model to detect cancerous tumors in the multilayers phantom model presented in this paper. The nine-antenna array is used to measure the backscattering signal of the breast phantom, where one antenna acts as a transmitter and the other eight antennas act as receivers of the scattered signals. Then, the second antenna is used as a transmitter and the other antennas as receivers, and so on till we have gone through all the antennas. These collected backscattered signals are used to reconstruct the image of the breast phantom using software called “Microwave Radar-based Imaging Toolbox (MERIT)”. From the reconstructed image, the tumor inside the breast model can be identified and located. Different tumor sizes in different locations are tested, and it is found that the locations can be determined irrespective of the tumor size. The proposed modified Vivaldi antenna has a very compact size of 25 × 20 × 0.1 mm3 and has a different geometry compared with conventional Vivaldi antennas. The first version of the antenna has two resonant frequencies at 4 and 9.4 GHz, and because we are interested more in the first band, where it gives us sufficient resolution, we have notched the second frequency by etching two slots in the ground plane of the antenna and adding two rectangular parasitic elements on the radiating side of the antenna. This technique is utilized to block the second frequency at 9.4 GHz, and, as a result, the bandwidth of the first resonant frequency is enhanced by 20% compared with the first design bandwidth. The modified antenna is fabricated on Polyimide flexible material 0.1 mm thick with a dielectric constant of 3.5 using a standard PCB manufacturing process. The measured performance of this antenna is compared with the simulated results using the commercially available simulation software Ansoft HFSS, and it is found that the measured results and the simulated results are in good agreement.

show abstract