Title :
Cylindrical high impedance surface aided horizontally polarised omnidirectional antenna
Author :
Sugiura, Shinya ; Iizuka, Hideo
Author_Institution :
Tokyo Univ. of Agric. & Technol., Tokyo, Japan
Abstract :
Cylindrical high impedance surface (HIS) structures and their E-plane omnidirectional antenna application are presented at the 2.0 GHz band. The diameter of the cylinder is 39.2 mm, when the φ-direction periodicity is chosen as three. The HIS, when illuminated by plane waves, not only reflects them in the direction of arrival with zero phase, but also transmits them in other directions to a comparable degree, which is caused by half-wavelength resonance of all of the patches. A dipole antenna element situated close to the HIS, the φ-direction periodicity of which is three, exhibits VSWR = 1.5 and an omnidirectional E-plane pattern at 2.14 GHz.
Keywords :
antenna radiation patterns; dipole antennas; omnidirectional antennas; φ-direction periodicity; E-plane omnidirectional antenna; HIS structure; cylindrical high impedance surface aided structure; dipole antenna element; direction of arrival; frequency 2.0 GHz; half-wavelength resonance; horizontally polarised omnidirectional antenna; omnidirectional E-plane pattern; plane waves; size 39.2 mm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.4523
