scholarly journals Microwave Breast Phantom Measurement System With Compact Side Slotted Directional Antenna

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 5321-5330 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
Md. Zulfiker Mahmud ◽  
Norbahiah Misran ◽  
Jun-Ichi Takada ◽  
Mengu Cho
Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2962 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
Md. Samsuzzaman ◽  
Md. Tarikul Islam ◽  
Salehin Kibria ◽  
Mandeep Jit Singh

Microwave breast imaging has been reported as having the most potential to become an alternative or additional tool to the existing X-ray mammography technique for detecting breast tumors. Microwave antenna sensor performance plays a significant role in microwave imaging system applications because the image quality is mostly affected by the microwave antenna sensor array properties like the number of antenna sensors in the array and the size of the antenna sensors. In this paper, a new system for successful early detection of a breast tumor using a balanced slotted antipodal Vivaldi Antenna (BSAVA) sensor is presented. The designed antenna sensor has an overall dimension of 0.401λ × 0.401λ × 0.016λ at the first resonant frequency and operates between 3.01 to 11 GHz under 10 dB. The radiating fins are modified by etching three slots on both fins which increases the operating bandwidth, directionality of radiation pattern, gain and efficiency. The antenna sensor performance of both the frequency domain and time domain scenarios and high-fidelity factor with NFD is also investigated. The antenna sensor can send and receive short electromagnetic pulses in the near field with low loss, little distortion and highly directionality. A realistic homogenous breast phantom is fabricated, and a breast phantom measurement system is developed where a two antennas sensor is placed on the breast model rotated by a mechanical scanner. The tumor response was investigated by analyzing the backscattering signals and successful image construction proves that the proposed microwave antenna sensor can be a suitable candidate for a high-resolution microwave breast imaging system.


2020 ◽  
Vol 18 (11) ◽  
pp. 806-810
Author(s):  
Praveen Kumar Rao ◽  
Alok Kumar Patel ◽  
Rajan Mishra

A compact microwave breast imaging (MBI) Omni-directional antenna applications has been proposed. As a primary health observation, the built antenna is inexpensive and has no health risk. Two antenna designs have been used together with the viable signal processing technology to identify the tumor available in breast phantom. At the 3.3 GHz frequency band, the electric length of the antenna is 0.22 λ × 0.176 λ × 0.0088 λ antenna has been offering the bandwidth is 40.6%.


Diagnostics ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 61 ◽  
Author(s):  
Tomas Rydholm ◽  
Andreas Fhager ◽  
Mikael Persson ◽  
Shireen Geimer ◽  
Paul Meaney

A breast phantom developed at the Supelec Institute was interrogated to study its suitability for microwave tomography measurements. A microwave measurement system based on 16 monopole antennas and a vector network analyzer was used to study how the S-parameters are influenced by insertion of the phantom. The phantom is a 3D-printed structure consisting of plastic shells that can be filled with tissue mimicking liquids. The phantom was filled with different liquids and tested with the measurement system to determine whether the plastic has any effects on the recovered images or not. Measurements of the phantom when it is filled with the same liquid as the surrounding coupling medium are of particular interest. In this case, the phantom plastic has a substantial effects on the measurements which ultimately detracts from the desired images.


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