Title :
An omnidirectional planar microstrip antenna
Author :
Bancroft, Randy ; Bateman, Blaine
Author_Institution :
Centurion Wireless Technol., Westminster, CO, USA
Abstract :
A new omnidirectional printed planar microstrip antenna is described. The radiation pattern of this antenna is analyzed numerically with the finite-difference time-domain (FDTD) method and compared with measurement. The length of the antenna can be scaled to increase or decrease gain. The driving point is unbalanced and may be fed directly with a coaxial cable. The impedance at the driving point of the antenna can be varied by adjusting the width of the radiating elements W2 to provide a match.
Keywords :
antenna feeds; antenna radiation patterns; coaxial cables; finite difference time-domain analysis; microstrip antennas; FDTD; antenna fed; antenna length; coaxial cable; driving point impedance; finite-difference time-domain method; omnidirectional printed planar microstrip antenna; radiating element; radiation pattern; Antenna measurements; Antenna radiation patterns; Coaxial cables; Dielectric materials; Finite difference methods; Geometry; Impedance; Microstrip antennas; Pattern analysis; Time domain analysis; 65; Microstrip antenna; omnidirectional; printed antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.832338
