A Novel Approach for Changing Bandwidth of FSS Filter Using Gradual Circumferential Variation of Loaded Elements

摘要

A novel approach for varying bandwidth of Frequency Selective Surface (FSS) microwave niters has been discussed. The filter studied comprised of four-legged-loaded elements FSS filter. The unit cell of a conventional loaded element FSS filter contains only a single loaded element. The novel approach requires the unit cell to contain multiple loaded elements. The circumferences of the loaded elements of the unit cell are altered utilizing a factor named circumferential variability, d. The simulation results show that the bandwidth can be appreciably varied by changing the value of d.