Title :
Antenna in the terahertz band for Radioastronomy applications
Author :
Andres-Garcia, B. ; Garcia-Munoz, L.E. ; Camara-Mayorga, I. ; Segovia-Vargas, D. ; Gusten, R.
Author_Institution :
Univ. Carlos III de Madrid, Leganes, Spain
Abstract :
A submillimeter ultra-wideband Tapered Slot Antenna (TSA) is presented. The operation frequency band goes from 0.6 THz to 2 THz, with symmetric radiation patterns from 0.9 THz to 1.8 THz. Good gaussicity levels are achieved (above 80%) and the substrate width limitation has been overcomed by the use of a dielectric wedge over a Gallium Arsenide wafer, where the photonic excitation is placed. With the designed TSA, a phased array with three elements is also presented, swhowing the radiated power in terms of the scanning angle.
Keywords :
Antenna radiation patterns; Broadband antennas; Dielectric substrates; Dipole antennas; Frequency; Gallium arsenide; Impedance; Phased arrays; Slot antennas; Structural beams;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
