Title :
A woodpile EBG sectoral horn antenna
Author :
Weily, Andrew R. ; Esselle, Karu P. ; Sanders, Barry C. ; Bird, Trevor S.
Author_Institution :
Dept. of Electron., Macquarie Univ., Sydney, NSW, Australia
Abstract :
An H-plane sectoral horn antenna made from a woodpile electromagnetic bandgap (EBG) material is described. The electromagnetic confinement mechanism within the horn antenna relies wholly on the 3D EBG of the woodpile material, which is flared in the H-plane. The antenna has a typical sectoral horn pattern with a directional beam in one principal plane and a broader beam in the other. In a prototype antenna, a rectangular waveguide-to-EBG waveguide transition is used to deliver energy to the horn. Preliminary theoretical results on radiation patterns and impedance bandwidth of this antenna are described. The bandwidth of the antenna is almost equal to that of the defect waveguide.
Keywords :
antenna feeds; antenna radiation patterns; electric impedance; horn antennas; photonic band gap; waveguide transitions; 12.3 to 13.1 GHz; H-plane sectoral horn antenna; directional beam; impedance bandwidth; radiation patterns; rectangular waveguide; waveguide transition; woodpile EBG sectoral horn antenna; woodpile electromagnetic bandgap material; Antenna radiation patterns; Bandwidth; Directive antennas; Electromagnetic waveguides; Horn antennas; Metamaterials; Periodic structures; Prototypes; Rectangular waveguides; Waveguide transitions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552813
