Summary
International Symposium on Antennas and Propagation
2008
Session Number:4C32
Session:
Number:4C32-5
A PIFA driven structure with Tab-monopole loading for Laptop Applications
Su-Mei Shen, I-Fong Chen, Chia-Mei Peng,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
Nowadays, the Laptop is attractive, lightweight, and curvy. There is a remarkable trend towards the development of integrated antenna for laptop. Recently, more and more requirements of Wireless Wide Area Network (WWAN) functions are set on the laptop. The operating bands are: CDMA (824-894 MHz), GSM (880-960 MHz), DCS (1710-1880 MHz), PCS (1850-1990 MHz) and WCDMA (1920-2170 MHz).But, the situations are that the physical space for antenna is limited and it will impact the bandwidth of antenna. Designing an integrated antenna for a laptop with multi-band operation is not straightforward. In particular it is difficult to satisfy the bandwidth requirement for the respective communication bands. Another complication arises when the antenna has to operate in the close proximity to metallic objects. In this literature, a novel penta-band PIFA driven structure with Tab-monopole loading was presented [1]. It was implemented by using metal copper slice. The Tab-monopole loading structure is for bandwidth enhancement in upper operating band [2-5]. The function of slot-trace in Tab-monopole is for lower resonant frequency [6]. This antenna combines omni-directional, broad bandwidth, simple impedance matching to the feed line and low profile in an easy to fabricate structure. Details of the design considerations of the proposed designs and the experimental results of constructed prototype are presented and discussed.