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Different approaches have been proposed to image the electrical properties of biological tissues. In electrical impedance tomography (EIT), electrical currents are either applied from the surface or induced magnetically inside the body. Surface electrodes or coils are used to acquire data for image reconstruction. There are two main strategies in EIT: applied current electrical impedance tomography (ACEIT) (

In this paper the radiation pattern on either side of the main beam, which is created by a standard microstrip patch antenna, is configured to correspond to a cosecant-squared curve. The 8×2 antenna array comprises eight pairs of radiating elements that are arranged in a symmetrical structure and excited through a single common feedline. Interaction of the fields generated by each pair of elements contribute towards the overall radiation characteristics. The proposed array is shown to exhibit an impedance bandwidth of 1.93 GHz from 9.97 to 11.90 GHz for S11 ≤-10 dB with a peak gain of 14.95 dBi. The antenna's radiation pattern follows a cosecant-squared curve over an angular range of ±60.91°. The compact antenna array has dimensions of 106×34×0.813 mm 3. These characteristics qualify the antenna for radar applications at the X-band frequency.