Performance analysis of circular patch antenna for breast cancer detection

Now a day wireless communication systems has becoming the master for the world. The reason behind is the major component called Antenna. Even though peoples have sophisticated life, they are suffered by several diseases. Especially women are suffered by breast cancer. In earlier days X-ray mammography technique has been applied to detect the breast cancer. But the major drawback in this technique is the ionizing radiation level from X-rays which leads to cell death, cell mutation and fetal damage within the body. So the Microwave Breast Imaging (MBI) technique has been implemented to get the information about breast tissues. It uses low power when compared to X-ray technique. But this technique also has the impediments which gets high reflection from the breast tissue. Hence to overcome this problem, a circular patch antenna has been designed using flexible FR-4 substrate with the radius of 14.5 mm. The proposed antenna is also gets combined with the skin model to get the cancer level within the body. Both the models get designed in Ansoft HFSS software over an operating frequency range of 2.5GHz. The results of the proposed antenna gets analyzed such as return loss, VSWR, gain, directivity which is achieved of about -21dB, 1.2, 4.404dB, 4.48dB. The current density parameter plays a wide role here since it only tells about the cancer level. Higher the current density parameter increases the visibility of the cancer. Here it is achieved of about 127 A/m². For this proposed antenna a miniaturization technique called Defected Ground Structure has been applied in the ground to improve the performance of the system.