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http://dx.doi.org/10.5515/KJKIEES.2008.19.4.477

A Design of Multi-Band Chip Antenna for Mobile Handsets  

Cho, In-Ho (Department of Electronic and Computer Engineering, Chonnam National University)
Jung, Jin-Woo (Department of Electronic and Computer Engineering, Chonnam National University)
Lee, Cheon-Hee (ACE Antenna Co., Ltd.)
Lee, Yong-Hee (ACE Antenna Co., Ltd.)
Lee, Hyeon-Jin (Department of Electrical and Electronics, DongKang College)
Lim, Yeong-Seog (Department of Electronic and Computer Engineering, Chonnam National University)
Publication Information
Abstract
The paper introduces mobile handset multi-band chip antenna to be used on meander line PIFA structure and parasite patch. The proposed antenna uses an FR-4 substrate. The top layer is consist of meander lines PIFA structure to implement GSM900 and is connected with each rad and meander line on the via-hole for maximize space efficiency. The middle layer is designed with the signal line and gap to implement a DCS and PCS bands, the bottom layer which is added to a parasite patch on the ground can be show an adjust of frequency and impedance character by the connection of the radiators of middle layer and coupling. The fabricated antenna with the dimension of $28{\times}6{\times}4\;mm^3$. The ground plane a dimension of $45{\times}90\;mm$, designed by a commercial software CST simulator. The experimental results show that the bandwidth for(VSWR<3) is 90($875{\sim}965$) MHz in GSM900 band operation and 380($1,670{\sim}2,050$) MHz in DCS, PCS band operation. The maximum gains of antenna are 0.25 dBi, 3.65 dBi and 3.3 dBi at resonance frequencies and it has omni-directional pattern practically.
Keywords
Meander Line Antenna; Planar Inverted-F Antenna(PIFA); Chip Antenna; Multiband Antenna;
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