Summary
International Symposium on Antennas and Propagation
2006
Session Number:2A1b
Session:
Number:2A1b-3
Multiband Circular MSA with Half-ring Slots Fed by an L-Probe
Ridho Chayono, Yuichi Kimura, Misao Haneishi,
pp.1-5
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
A novel circular MSA with half-ring slots for multiband operation is presented in this paper. The patch is fed by an Lprobe due to its remarkable performance as a wideband impedance matching feeder. Four half-ring slots are assumed on the patch and hence five resonant frequencies are accomplished. The antenna performances are predicted by IE3D simulator based on the method of moments, and are confirmed by experiments. The antenna is manufactured on a double-layered PTFE substrate of which the patch is printed on the top layer and the L-probe is printed on the bottom one. Broadside radiation patterns and gain of 5.0-6.0 dBi are achieved for the entire observed modes. Good agreements are accomplished between measured and simulation results. Thus, the proposed antenna is well suited as an alternative model for a multiband planar antenna.