Title :
Omnidirectional planar dipole array antenna
Author :
Wong, Kin-Lu ; Hsiao, Fu-Ren ; Chiou, Tzung-Wern
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A planar dipole array antenna having good omnidirectional radiation in the azimuthal plane is presented. The planar dipole array antenna comprises two 1 × 2 dipole arrays arranged back to back and separated by a narrow rectangular ground plane, and is easily constructed by printing on both sides of a dielectric substrate. Prototypes of the proposed antenna for WLAN operation in the 2.4 GHz band (2400-2484 MHz) were constructed and studied. Good omnidirectional radiation with gain variations less than 2 dBi in the azimuthal plane has been obtained, and the measured maximum antenna gain for operating frequencies across the 2.4 GHz band is about 5.0-6.1 dBi. Effects of the ground-plane width and the array spacing on the performance of the proposed antenna are also studied.
Keywords :
UHF antennas; antenna radiation patterns; dipole antenna arrays; planar antenna arrays; wireless LAN; 2.4 GHz; 2400 to 2484 MHz; 5.0 to 6.1 dB; WLAN operation; antenna prototype; array spacing; azimuthal plane; dielectric substrate; maximum antenna gain; narrow rectangular ground plane width; omnidirectional planar dipole array antenna; omnidirectional radiation; operating frequency; Antenna arrays; Antenna measurements; Azimuthal plane; Dielectric measurements; Dielectric substrates; Dipole antennas; Frequency measurement; Printing; Prototypes; Wireless LAN;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.823897
