A Flexible UWB Elliptical Slot Antenna with a Tuning Uneven U-shape Stub on LCP for Microwave Tumor Detection

In recent years, pulsed microwave imaging in the gigahertz range has been suggested as a promising complementing methodology to the currently existing detection and imaging techniques. This technique is based on significant electrical contrast between the cancerous and healthy breast tissue in the microwave range. In this paper, we investigate tumor detection capabilities of the CPW-fed elliptical slot antenna with a tuning uneven U-shape stub on flexible liquid crystal polymer (LCP) in the UWB Microwave range of frequencies. This topology features excellent capabilities to detect tumors of different sizes and orientations and could potentially revolutionize the detection of ultra-small tumors through the use of antenna-array conformal diagnostic "pouches".