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- Title
IMPEDANCE BANDWIDTH IMPROVEMENT OF BUILT IN ANTENNA BY NOVEL FEEDING STRUCTURE AT PRACTICAL MOBILE HANDSET.
- Authors
Kim, S. M.; Yang, C. Y.; Yang, W. G.
- Abstract
In this paper, we propose a wideband internal Planar Inverted-F Antenna (PIFA) by novel feeding structure at practical mobile handset. The proposed antenna by novel feeding structure shows 33.49% wideband impedance bandwidth, compared to 16.92% impedance bandwidth of normal feeding structure of PIFA. We explain novel feeding structure antenna by using equivalent circuit. The normal feeding structure of conventional PIFA has the inductive reactance structurally. To reduce its inductive reactance, a shunt inductive reactance using a novel feeding structure is added to normal feeding structure of conventional PIFA, structurally. So, reactance of PIFA is decreased and impedance bandwidth of PIFA is increased. The size of proposed antenna is 29:2 x 8:2 x 8:3mm³. As well as, the implemented antenna has a good radiation pattern and high antenna gains despite very small volume.
- Subjects
BROADBAND communication systems; ELECTRIC impedance; BANDWIDTHS; DIGITAL communications; MOBILE communication systems; ANTENNAS (Electronics)
- Publication
Progress in Electromagnetics Research C, 2012, Vol 32, p1
- ISSN
1937-8718
- Publication type
Article
- DOI
10.2528/pierc12070402