An all-metallic multi-layered parallel-plate slot array antenna operated in the 60-GHz band with wide impedance bandwidth and high-gain characteristics is proposed. The $16\. {\times }\. 16$ -slot antenna is composed of $2\. https://safeersappliancers.shop/product-category/hotpoint-hue61k-s-electric-ceramic-cooker-black-60cm/