Title :
Linear and circular polarized electrically small antennas based on the employment of metamaterial-inspired sub-wavelength resonators
Author :
Bilotti, Filiberto ; Barbuto, Mirko ; Di Palma, L. ; Ramaccia, D. ; Toscano, Alessandro ; Vegni, L.
Author_Institution :
Dept. of Eng., Roma Tre Univ., Rome, Italy
Abstract :
In this contribution, we present the design of efficient electrically small apertures loaded with metamaterial-inspired sub-wavelength resonators. The employment of omega and modified protractor resonators enables efficient radiation and automatic impedance matching, without increasing the physical dimensions of the aperture. This phenomenon is applied to the design of several microwave components, some of which are presented in the paper: a. linearly-polarized open-ended waveguides and horn antennas and b. linear-to-circular polarization transformers. The results are supported by proper numerical simulations and measurements.
Keywords :
antenna radiation patterns; aperture antennas; horn antennas; impedance matching; metamaterial antennas; microwave resonators; numerical analysis; transformers; automatic impedance matching; circular polarized electrically small aperture antenna design; horn antennas; linear polarized electrically small aperture antenna design; linear-to-circular polarization transformers; linearly-polarized open-ended waveguides; metamaterial-inspired subwavelength resonators; microwave components; modified protractor resonators; numerical simulations; omega; Antennas; Magnetic materials; Magnetic resonance; Metamaterials; electrically small antennas; linear-to-circular polarization transformer; metamaterial-inspired resonators;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
