Fluid-Driven Pattern Reconfigurable Antenna With Cavity-Backed Slot
Muhammad Usman Khan, Awab Muhammad, Adnan Nadeem, Ravi Kumar Arya, Prashant Chaudhary, R. Mittra · 2024
This work introduces a novel cavity-backed slot antenna design operating at 10 GHz, employing a shorted monopole as the feed mechanism. The cavity structure is realized by integrating PLA (Polylactic Acid) posts filled with liquid mercury, enabling dynamic beam steering capabilities. By selectively emptying sets of eleven consecutive PLA posts, the antenna achieves 360 -degree scan coverage without any degradation in scanning efficiency. Furthermore, to enhance the antenna’s directivity, cone structures are integrated at the upper and lower extremities of the cavity. Simulation results demonstrate that the proposed antenna achieves complete 360degree azimuth coverage with a directivity of 12 dBi. The proposed design is realizable and can be employed in various applications where beam steering is required such as communication and radar.