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Input Impedance Matching Method of Inverted L Antenna using thin Ferrite Film  

Lim, Gye-Jae (Dept. of Electronic Information & Communication Engineering in Kwandong Univ.)
Jung, Soo-Jin (Dept. of Electronic Information & Communication Engineering in Kwandong Univ.)
Choi, Jong-Kwon (Dept. of Electronic Information & Communication Engineering in Kwandong Univ.)
Publication Information
Resources Recycling / v.13, no.6, 2004 , pp. 26-30 More about this Journal
Abstract
Input impedance of the inverted L antenna which is modified from a monopole antenna varies to very high input impedance value when the ratio of vertical height to horizontal length is reduced. So its impedance matching becomes very difficult. In this paper, we analyzed the input impedance variation range depending on the ratio of vertical height to horizontal length in the normal and ferrite thin film added configuration for the input impedance control. For the exact analysis involving the permittivity, permeability and conductivity of ferrite material, FDTD numerical method is used.
Keywords
inverted L antenna; Ferrite thin film; FDTD numerical method;
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