Title :
Broadband Fabry-Perot type sub-wavelength profile antenna
Author :
Konstantinidis, Konstantinos ; Feresidis, Alexandros P. ; Hall, Peter S.
Author_Institution :
Sch. of Electron., Electr. & Syst. Eng., Univ. of Birmingham, Birmingham, UK
Abstract :
In this paper a new concept for designing subwavelength-profile and broadband high-gain leaky-wave antennas is presented. It is based on novel multi-layer periodic arrays for sub-wavelength Fabry-Perot leaky-wave antennas with enhanced bandwidth performance. Two double-layer periodic arrays of dissimilar dimensions are designed and optimized, each double-layer array consisting of an Artificial Magnetic Conductor (AMC) and a Partially Reflective Surface (PRS) printed on either side of a dielectric substrate. They are separated by subwavelength distances from a ground plane and from each other, creating two air cavities with a total profile less than λ/2. A broadband feeding mechanism is employed. Two antennas are proposed, simulated in CST Microwave Studio™, achieving high gain and broad bandwidth.
Keywords :
leaky wave antennas; magnetic devices; metamaterial antennas; periodic structures; artificial magnetic conductor; broadband Fabry-Perot antenna; high gain leaky wave antenna; multilayer periodic arrays; partially reflective surface; subwavelength profile antenna; Bandwidth; Broadband antennas; Broadband communication; Cavity resonators; Directive antennas; Reflection; Artificial magnetic conductor; Fabry-Perot cavity; Partially reflective surfaces;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
