Design of a Dual-Band Frequency Reconfigurable Patch Antenna Based on Characteristic Modes

被引：14
|
作者：
Mahlaoui, Zakaria [1 ,2 ]
Antonino-Daviu, Eva [1 ]
Latif, Adnane [2 ]
Ferrando-Bataller, Miguel [1 ]
机构：
[1] Univ Politecn Valencia, Inst Telecomunicac & Aplicac Multimedia, E-46022 Valencia, Spain
[2] Cadi Ayyad Univ, Informat Technol & Modeling Lab, Natl Sch Appl Sci, Marrakech 40000, Morocco
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2019年 / 2019卷
关键词：
Design - Antenna grounds - Microwave antennas - Slot antennas - Varactors - Natural frequencies;
D O I：
10.1155/2019/4512532
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 frequency reconfigurable patch antenna design based on the characteristic mode analysis is presented. The antenna presents a reconfigurable lower band and a steady band at higher frequencies. A slot is etched on the ground plane of the antenna, where two varactor diodes are placed on each side of the slot in order to tune the lower band. The first resonant frequency shifts down by varying the reverse voltage of the varactor, whereas the second operating frequency keeps stable. The proposed antenna is designed to cover WLAN bands, offering a first band operating at 2GHz and a second band ranging from 5.3GHz to 5.8GHz. A prototype has been fabricated and measurements are provided, which validate the proposed analysis, method, and design procedure.
引用
收藏
页数：12
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