BANDWIDTH ENHANCEMENT OF LTE/WWAN PRINTED MOBILE PHONE ANTENNA USING SLOTTED GROUND STRUCTURE

被引：46

作者：

Chen, Z. ^{[2
]}

Ban, Y. -L. ^{[1
]}

Chen, J. -H. ^{[1
]}

Li, J. L. -W. ^{[1
]}

Wu, Y. -J. ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Inst Electromagnet, Chengdu 611731, Sichuan, Peoples R China

[2] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Sichuan, Peoples R China

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2012年 / 129卷

关键词：

MONOPOLE ANTENNA; LAPTOP COMPUTER; BAND; CAPACITOR; PLANE; STRIP;

D O I：

10.2528/PIER12061203

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, a coupled-fed planar printed antenna mounted on the compact no-ground portion of the system circuit board of a mobile phone with a low profile of 10 mm is proposed and studied. The presented antenna is formed by a double-branch feeding strip, a shorted coupling strip with two open-ended loops of different lengths, and a slotted ground structure consisting of two monopole slots, yet it has a size only 15 x 50 mm(2) Two wide operating bandwidths of 698-960 MHz and 1710-2690 MHz can be achieved by these radiating strips, which provide multiple resonant modes at about 750, 1000, 1750, 2300 and 2900 MHz. In addition, with the presence of the two narrow slots and a chip inductor (L = 1.5 nH), in this study, the printed antenna can lead to much widened bandwidths in both the antenna's lower and upper bands to cover LTE700/G5M850/900 and DCS1800/PCS1900/UMTS2100/LTE2300/2500, respectively. Good radiation efficiency and antenna gain for frequencies over the desired operating bands are obtained. Detailed design considerations of the proposed antenna are described, and both experimental and simulated results are also presented and discussed.

引用

页码：469 / 483

页数：15

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