Title :
Low profile array with integrated high impedance surfaces for high performance adaptive GNSS
Author_Institution :
Electromagn. & Radar Dept. (DEMR), ONERA - The French Aerosp. Lab., Toulouse, France
Abstract :
A compact and low profile array with integrated high impedance surfaces (HIS) is proposed in this paper. The array is comprised of 4 radiating cavities spaced 0.6 wavelength apart (center to center) and filled with dielectric material and two stacked patches. The HIS, which is made of a cavity and a FSS layer, is integrated between the radiating elements and minimizes the inter-element coupling. The presence of the HIS provides inter-element coupling levels below -30 dB. The coupling levels are -16 dB without HIS. The low inter-element coupling and low profile features of the antenna make the array an attractive solution for anti-jam adaptive GNSS applications.
Keywords :
antenna radiation patterns; dielectric materials; jamming; microstrip antenna arrays; satellite antennas; satellite navigation; FSS layer; Global Navigational Satellite Systems; HIS; compact array; dielectric material; high performance anti jam adaptive GNSS; integrated high impedance surfaces; inter element coupling minimization; low profile array; radiating cavities; stacked patches; Arrays; Cavity resonators; Couplings; Finite element analysis; Frequency selective surfaces; Global Positioning System; Surface impedance; GNSS; GPS; HIS; anti-jam; array; coupling reduction; low profile;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
