The search functionality is under construction.
The search functionality is under construction.

Novel Co-planar Waveguide (CPW)-Fed Small Antenna with Circular Polarization

Jaehyurk CHOI, Sungjoon LIM

  • Full Text Views

    0

  • Cite this

Summary :

A planar circularly-polarized (CP) small antenna is proposed. To obtain a low profile configuration, a co-planar waveguide (CPW) structure is employed. Circular polarization is achieved using a curved stub that generates current distribution in a direction orthogonal to the current distribution from the patch. Using meander lines and a series gap capacitance, a 70% size reduction is achieved compared to a half-wavelength resonant antenna. To the best of the authors' knowledge, the proposed antenna is the smallest CP antenna using CPW technology. The measured 3 dB axial ratio bandwidth is 8.3% from 3.83 GHz to 4.16 GHz, and a 1.6 dBic gain and 89% efficiency are achieved.

Publication
IEICE TRANSACTIONS on Communications Vol.E94-B No.7 pp.2141-2144
Publication Date
2011/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E94.B.2141
Type of Manuscript
LETTER
Category
Antennas and Propagation

Authors

Keyword