16-elements helical antenna system integration with a solar cell powered IoT collector
Type :
Conference paper
Publication Status :
Published
Access :
restrictedAccess
Abstract
An 868MHz-915MHz 16-elements helical wire antenna array design with a solar-cell integration is presented. Each element is designed to be omni-directional with the corresponding tuning stubs and ground substrate. This is shared with distributed solar cell array, powering 16- Internet of Things (loT) transceivers operating at multiple Industrial Scientific and Medical (ISM) bands. 370mmx400mm design including the antennas, solar cells, and the tuning stubs can generate 8-watts solar power under direct sun, charging Lithium batteries. 1.6-mm thick planner design with horizontal radiation pattern resulted in average -15dB return loss at 868 MHz without using any external matching elements.
Source :
2019 IEEE Conference on Antenna Measurements & Applications (CAMA)
Date :
2019
Publisher :
IEEE
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