Title :
Radiation pattern of an electrically long, sleeve choke-loaded monopole using magnetic and dielectric beads
Author :
Kennedy, Timothy F. ; Long, Stuart A. ; Williams, Jeffery T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Houston Univ., TX, USA
Abstract :
The radiation pattern of a sleeve choke-loaded monopole can be modified to resemble a quarter-wavelength monopole with small radii chokes with the addition of magnetic and dielectric beads. An electrically long monopole loaded with a sleeve choke and magnetic and dielectric beads is given. Magnetic and dielectric beads are placed adjacent to the sleeve choke. The return loss and radiation pattern for this structure were computed using Ansoft´s finite element package, HFSS.
Keywords :
antenna radiation patterns; dielectric-loaded antennas; finite element analysis; inductors; monopole antennas; Ansoft HFSS; dielectric beads; electrically long monopole; finite element package; magnetic beads; quarter-wavelength monopole; radiation pattern; return loss; sleeve choke-loaded monopole; small radii chokes; Antenna radiation patterns; Cables; Circuits; Dielectric losses; Finite element methods; Impedance; Inductors; Magnetic resonance; Packaging; Permittivity;
Conference_Titel :
Wireless Communication Technology, 2003. IEEE Topical Conference on
Print_ISBN :
0-7803-8196-3
DOI :
10.1109/WCT.2003.1321460
