Title :
Broadband omnidirectional metal-plate monopole antenna
Author :
Wong, Kin-Lu ; Su, Saou-Wen ; Tang, Chia-Lun
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A novel broad-band omnidirectional metal-plate monopole antenna is presented. The proposed antenna is a step-shaped metal-plate monopole, which is easily fabricated from bending a metal plate (a 0.2 mm thick brass sheet used in this study). The proposed antenna shows improved omnidirectional radiation for frequencies across a very wide operating bandwidth (frequency ratio about 1:3), compared to a corresponding planar monopole antenna. Details of the proposed antenna design are described, and the experimental performance of some prototypes is studied.
Keywords :
antenna radiation patterns; broadband antennas; directive antennas; monopole antennas; broadband omnidirectional antenna; metal-plate monopole antenna; omnidirectional radiation; Antenna feeds; Antenna radiation patterns; Azimuthal plane; Bandwidth; Broadband antennas; Directive antennas; Frequency; Prototypes; Receiving antennas; Surface impedance;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.838765
