Design of Microwave Applicator with Plural Microchannels Using Post-Wall Waveguide

Microwave application technologies such as microwave heating, microwave assisted chemistry, etc. are of the innovative green technologies. In this paper, a chip-size microwave applicator with plural microchannels is designed at 24 GHz band. It consists of the post-wall waveguide and two or more micro channels arranged among the metallic posts. This applicator realizes microwave heating at different temperatures for the microchannels embedded in the separate places. The temperature-time profiles of the applicator are examined numerically. An experimental verification is performed with microwave power sources of about 0.7 W.