Abstract
Electric vehicles are becoming popular due to environmental concern and reduction in battery costs. Several charging methods are being investigated including microwave wireless charging. Design of low profile, planar transmission lines and antenna with high power handling capacity forms the backbone of microwave charging of electric vehicles. Unconventional substrates including coir provide good scope for designing planar structures with high power handling capacity. A novel low cost microstrip antenna and transmission line using Coir Phenol formaldehyde composite as a dielectric substrate is proposed. This is expected to be simple, easy-to-produce and inexpensive. The prototypes are designed, fabricated and measured for resonance frequency of 2.45GHz. The microwave parameters including ’S’ matrix and gain are simulated using electromagnetic simulator HFSS. Experimental results employing VNA E5080A showed good consonance with simulated results in the frequency range 900MHz to 4.0GHz. Encouraging terminal voltage is obtained at 2.45GHz making this substrate a potential candidate for vehicle charging applications.
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