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Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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MINIATURIZED CIRCULARLY-POLARIZED ANTENNA USING TAPERED MEANDER-LINE STRUCTURE

By J.-F. Li, B.-H. Sun, H.-J. Zhou, and Q.-Z. Liu

Full Article PDF (391 KB)

Abstract:
A novel miniaturized circularly-polarized antenna is presented. By using tapered meander-line structure, the designed antenna has a size reduction rate of 96% compared with a traditional turnstile dipole antenna. The unequal lengths of the two meanderline dipoles are properly adjusted to achieve a circularly polarized radiation. Furthermore, the impedance matching is effectively realized by a lumped matching network. A prototype of the antenna with a size of 64 × 64mm2 has been implemented and tested. Good agreement is achieved between the simulated results and the measured results, which shows that the axial ratio is less than 3.0 dB and the VSWR less than 2.0:1 in the frequency range of 450 ± 1.5 MHz.

Citation:
J.-F. Li, B.-H. Sun, H.-J. Zhou, and Q.-Z. Liu, " miniaturized circularly - polarized antenna using tapered meander - line structure ," Progress In Electromagnetics Research, Vol. 78, 321-328, 2008.
doi:10.2528/PIER07090801
http://www.jpier.org/PIER/pier.php?paper=07090801

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