octagon slot

A CPW -fed antenna is designed with octagonal shaped patch operating at a broadband millimeter-wave frequency from 24. nusa 118 slot 8 to 48. visa 228 slot 8 GHz for wireless 5G applications The antenna was design with dimensions of 20 × 20 × 1 6 mm3 are made with low cost FR4 loss free substrate with dielectric constant (εr) of 4 3 using the CST Microwave Studio software Simulated radiation pattern and return loss