DUAL-BAND AND WIDE BAND TUNING ANTENNAS FOR MOBILE AND WIRELESS COMMUNICATIONS

被引：0
|
作者：
Elfergani, I. T. E. [1 ]
Abd-Alhameed, R. A. [1 ]
See, C. H. [1 ]
Hraga, H. I. [1 ]
Sadeghpour, T. [1 ]
Alhaddad, A. G. [1 ]
Excell, P. S. [2 ]
机构：
[1] Univ Bradford, Mobile & Satellite Commun Res Ctr, Bradford BD7 1DP, W Yorkshire, England
[2] Glyndwr Univ, Ctr Appl Internet Res, Wrexham LL11 2AW, Wales
来源：
PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON INTERNET TECHNOLOGIES AND APPLICATIONS (ITA 11) | 2011年
关键词：
PIFA antenna; slot antenna; varactor diode; compact antenna; mobile phone antenna; wireless communications; radiation pattern; SLOT ANTENNA; PIFA;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Two tunable PIFA antennas are presented. The first is a dual-band handset antenna with tuning introduced across the slot using either a lumped capacitor or a varactor diode. Suitable tunability is initially established and tested for two resonant frequencies by placing lumped capacitors in the range of 1.5 to 4 pF along the slot of the radiator. Good agreement is obtained between predicted and measured input return loss, gain and radiation pattern over the tuned frequency range. Secondly, by reducing the size of the first design, a wide band compact antenna with a tunable band response is proposed. The desirable performance of a wide frequency tuning band with this antenna is realized between 1.75 and 2.4 GHz by loading an embedded resonant slot with a varactor diode with equivalent capacitor range of 0.5 to 2.5 pF. Two software simulation packages were used for comparison purposes.
引用
收藏
页码：524 / 530
页数：7
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