Low Cost Circularly Polarized Antenna for IoT Space Applications
Le Huy Trinh, Nguyen Vu Truong, Fabien Ferrero
Abstract
This work presents the use of a three-element radiating structure for circularly polarized Low-Power Wide Area Network (LP-WAN) communication with space. The proposed structure has a 72 mm × 72 mm × 12 mm compact size with Right-Handed Circular Polarization (RHCP) and a 120∘ wide beamwidth radiation pattern. Printed on low-cost FR4 Epoxy substrate, a feeding network circuit based on Quasi Lumped Quadrature Coupler (QLQC), it achieves a −0.6 dB insertion loss and a very compact size. The final structure has a 69% total efficiency and a 3.14 dBic realized gain.
Topics & Concepts
BeamwidthCircular polarizationTurnstile antennaAxial ratioOpticsRadiation patternAntenna (radio)Polarization (electrochemistry)Materials sciencePhysicsElectrical engineeringOptoelectronicsAntenna efficiencyEngineeringPhysical chemistryMicrostripChemistryAntenna Design and AnalysisEnergy Harvesting in Wireless NetworksIoT Networks and Protocols