Title :
Dyson conical Quad-Spiral Array for VLBI2010
Author :
Rivera-Lavado, Alejandro ; Llorente-Romano, Sergio ; Herraiz-Martinez, Francisco-Javier ; Garcia-Munoz, Luis-Enrique ; Lopez-Fernandez, Jose-Antonio ; Lopez-Perez, Jose-Antonio ; Tercero-Martinez, Felix ; Segovia-Vargas, Daniel
Author_Institution :
Dept. de Teor. de la Senal y Comun., Univ. Carlos III de Madrid, Leganés, Spain
Abstract :
A new topology that potentially can open new solutions for covering the new VLBI2010 configuration and its frequency bands associated is presented in this manuscript. In this approach a single band from 2 to 14 GHz is considered. A log-spiral antenna is printed on a conic surface. The whole structure is adjusted in order to obtain a pure circular polarization at broadside direction. An array of four elements is proposed for obtaining a dual-polarization feeder.
Keywords :
antenna arrays; broadband antennas; conical antennas; electromagnetic wave polarisation; spiral antennas; Dyson conical quad spiral array; VLBI2010; circular polarization; conic surface; dual polarization feeder; frequency 2 GHz to 14 GHz; log spiral antenna; Antenna radiation patterns; Arrays; Feeds; Polarization; Ultra wideband antennas; Ultrawideband antenna (UWB); spiral antenna;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6901700
