International Symposium on Antennas and Propagation
The Study of Different Impedance Meander Line for Planar Antenna Design
D. Misman, I. A. Salamat, M. F. Abdul Kadir, M. R. Che Rose, M. S. R. Mohd Shah, M. Z. A. Abd. Aziz, M. N. Husain, P.J Soh,
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Meander line technology allows designing antennas with a small size and provides wideband performance . Meander line antennas (MLA) are an interesting class of resonant antennas and they have been widely studied in order to reduce the size of the radiating elements in wire antennas: monopole, dipole and folded dipole type antennas . In meander line antennas, the wire is continuously folded to reduce the resonant length. Increasing the total wire length in antenna of fixed axial length lowers its resonant frequency. According to S. Best, when made to be resonant at the same frequency, the performance characteristics of these antennas are independently of the differences in their geometry or total wire length . Uniform U- MLA structures, the geometry are described to 3 parameters: the number of turns, and length of the horizontal and vertical section. For NU-MLA these are no tied values for the variables . In , compact frequency tunable planar meander line monopole antennas for mobile terminal applications are present. The operating frequency is the frequency where the reflection coefficients are less then -20 dB . The good return loss for antenna is less than -10 dB .