Title :
ENZ-based shortened horn antenna - an experimental study
Author :
Hrabar, Silvio ; Bonefacic, Davor ; Muha, Damir
Author_Institution :
Dept. of Wireless Commun., Univ. of Zagreb, Zagreb
Abstract :
Recent numerical study predicted phenomenon of a gain increase of a shortened horn antenna with the help of embedded double-thin-wire ENZ metamaterial slab. Here, we perform an experimental investigation of shortened horn antenna (length of which spans 52% of the length of optimal horn) with much simpler single-wire ENZ slab operated in 10 GHz band. Measurements revealed gain increase of more than 2 dB (comparing to the gain of a bare shortened horn) in 12% fractional bandwidth, with return loss better than -13 dB.
Keywords :
horn antennas; metamaterials; microwave antennas; wire antennas; ENZ metamaterial slab; double thin wire; epsilon-near-zero metamaterial slab; frequency 10 GHz; shortened horn antenna; Apertures; Frequency; Horn antennas; Metamaterials; Permittivity; Plasma measurements; Reflection; Slabs; Transmission line theory; Wires;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619853
