Title :
Slot-coupled UWB circularly polarized patch antenna with matching reflector
Author :
Russo, I. ; Freidl, Philipp Franz ; Leitgeb, Erich
Author_Institution :
Inst. of Microwave & Photonic Eng., Graz Univ. of Technol., Graz, Austria
Abstract :
This paper describes the implementation of an UWB circular polarized antenna system based on a dual-polarized patch antenna in the frequency range of 3.5-4.5 GHz and an external quadrature hybrid. The dual-polarized patch antenna offers a broadband operation thanks to the cavity-backed square slot ring feeding technique. The quadrature hybrid provides a 90-degree phase shift between the input ports of the patch antenna over the targeted frequency range. Simulation and measurements show good UWB performances for the presented structure.
Keywords :
electromagnetic wave polarisation; microstrip antennas; ultra wideband antennas; 90-degree phase shift; broadband operation; cavity-backed square slot ring feeding technique; dual-polarized patch antenna; frequency 3.5 GHz to 4.5 GHz; matching reflector; slot-coupled UWB circularly polarized patch antenna; Antenna measurements; Bandwidth; Gain; Patch antennas; Polarization; Ultra wideband antennas; antenna design; circularly polarized patch antenna; ultra-wide-band (UWB);
Conference_Titel :
Telecommunications (ConTEL), 2013 12th International Conference on
Conference_Location :
Zagreb
Print_ISBN :
978-1-4673-5984-9
