Aims:
This study aimed to focus on the detection of early-stage breast tumor and its location.
Background:
Breast Cancer is the disease with the highest rate of progression and mortality among women. Due to breast cancer/tumors, the risk of mortality for women has risen exponentially. Between 2006 and 2010, women died from carcinoma at a rate of 123.8 cases per lakh, well ahead of the 2020 deadline for breast cancer. This problem may be also overcome by early identification of the tumor using different detection procedures like X-ray mammography, computerized tomography, ultrasound imaging technique, positron emission tomography (PET), magnetic resonance imaging (MRI), and microwave imaging [1]-[5]. Researchers have carried out multiple studies in these areas.
Objective:
To detect early-stage breast tumor and its location using SAR analysis.
Methods:
The major dielectrical difference between cancerous breast tissues and normal tissues in this technique is the microwave frequency range. The term Specific absorption rate (SAR) describes the amount of energy that is absorbed (W/Kg) in the breast tissue. This segment illustrates the usefulness of diagnosing the tumor position in the breast by means of maximum SAR value coordinates. Changes in breast and tumor size are important for the risk of diagnosis. The power absorbed in connecting with a normal breast and a tumor breast is measured and equivalent for different breast masses. The maximum SAR is also analyzed at distinct tumor locations at various frequency ranges.
Results:
It is observed that max SAR coordinates are very close to the actual tumor location. So, the maximal value of SAR coordinates indicates the existence of tumor in the breast phantom.
Conclusion:
The simulated data above strongly suggests that the Max SAR values were higher in the breast phantom with tumor as compared to the breast without tumor. With different tumor radius (3 mm and 5 mm) analyzed with different resonant frequencies like 3GHz, 4GHz, and 5GHz at actual tumor locations of (0, 0, 35).
Even though a model representing the real properties of breast tissue is required to assess the validation of any imaging process, so the real-time development of equivalent breast phantom and its execution is needed.
This paper describes design and measurement results of RF modules intended for a proposed spaceborne multimedia Ka-Band multiple-beam transmit phased array antenna. The developed modules include a four-beam RF Control Module (CM) for amplitude and phase shaping, a Solid State. Power Amplifier Module (SSPAM) for power amplification as well as a Radiating Module (RM). The CM is realised on a multilayer LTCC substrate with customdesigned 6-bit phaseshifter MMICs and 5-bit attenuator MMICs. The SSPAM is realised on thin-film substrates with GaAs MMIC amplifiers. The modules were designed to meet the electrical, mechanical and thermal requirements of the proposed antenna. Using the developed modules, a subarray demonstrator consisting of four radiating patches was reat ked. The measurement results show that specified key performance parameters are met and prove the feasibility of the antenna concept.These activities are co-funded by the European Space Agency (ESA) in the frame of the ARTES 3 Multimedia Programme. 4 520 27 (each containing 6 CM
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