Bandwidth enhancement of PIFA ...

Bandwidth enhancement of PIFA loaded with very high permittivity material using FDTDBandwidth Enhancement of PIFA Loaded with Very High Permittivity Material Using FDTD
*Terry Kin-chung Lo and Yeongming Hwang City University of Hong Kong Kowloon, Hong Kong.

Abstract Bandwidth enhancement on a miniature PIFA antenna is demonstrated in this paper. The miniature PIFA antenna consists of multilayers of very high permittivity materials ( E , > 35). A 75% reduction in size has been accomplished as compared to that of the conventional PIFA. The achieved antenna gain is 7 dBi and the bandwidth is 5.7%. 1. Introduction
The objective of this study is to investigate the bandwidth enhancement on a planar inverted-F antenna (PIFA) loaded with very high permittivity materials ( E > 35). The PIFA belongs to a class of planar printed-circuit antennas. They are compact, low profile and s