Title :
Equivalent circuit of a quadraxial feed for ultra-wide bandwidth quadruple-ridged flared horn antennas
Author :
Beukman, Theunis S. ; Meyer, Petrie ; Maaskant, Rob ; Ivashina, Marianna V.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., Stellenbosch, South Africa
Abstract :
An equivalent circuit model of a quadraxial feed for ultra-wide bandwidth quadruple-ridged flared horn (QRFH) antennas is presented. The circuit is synthesised by only 3 unknowns and achieves an accurate input impedance for a wide range of dimensions. This model allows fast synthesis of optimal feeding designs that would ensure the excitation of the fundamental mode at the input of Pa QRFH.
Keywords :
antenna feeds; equivalent circuits; horn antennas; ultra wideband antennas; QRFH antennas; equivalent circuit model; optimal feeding designs; quadraxial feed; quadruple-ridged flared horn antennas; ultra-wide bandwidth horn antennas; Antenna feeds; Bandwidth; Electromagnetic waveguides; Equivalent circuits; Impedance; Integrated circuit modeling; equivalent circuits; quadruple-ridged waveguides; ultra wideband antennas; waveguide transitions;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
