A Tunable Dual-Band Miniaturized Monopole Antenna for Compact Wireless Devices

被引：18
|
作者：
Ouedraogo, Raoul O. [1 ]
Tang, Junyan [1 ]
Fuchi, Kazuko [2 ]
Rothwell, Edward J. [1 ]
Diaz, Alejandro R. [2 ]
Chahal, Prem [1 ]
机构：
[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Mech Engn, E Lansing, MI 48824 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2014年 / 13卷
关键词：
Broadband antennas; genetic algorithms; miniaturization; tunable circuits and devices; varactors; wireless communication;
D O I：
10.1109/LAWP.2014.2332752
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：
A technique for producing miniaturized tunable planar monopole antennas for wireless communication applications is introduced. Miniaturization is achieved by optimizing the geometry of a pixelated metallic patch surrounding the monopole antenna. Tuning of the antenna is implemented by varying the capacitance of a varactor diode loaded between the pixelated metallic patch and the ground plane. The result is an ultra-compact, dual band, folded monopole antenna that fits into a hemisphere of radius lambda(0)/20 at 2.1 GHz. Varying the capacitance of the varactor diode enables the two resonance frequencies to be tuned simultaneously, covering multiple frequency bands for different wireless applications. A prototype antenna has been fabricated and measured, confirming the feasibility of the proposed design.
引用
收藏
页码：1247 / 1250
页数：4
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