A chip-size structure for continuous microwave irradiation by 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 structure for continuous microwave irradiation is proposed. It consists of the post-wall waveguide (or the substrate integrated waveguide) and a micro channel arranged among the metallic posts. In order to realize miniaturization, the 24.125 GHz band is utilized instead of the commonly used 2.45 GHz band. The validity of the proposed structure is examined numerically and experimentally with microwave power sources of about 1 W.