UWB Rectangular DRA Integrated with Reconfigurable Narrowband Antenna for Cognitive Radio Applications

被引：7
|
作者：
Abioghli, Mehdi [1 ]
Keshtkar, Asghar [2 ]
Naser-Moghadasi, Mohammad [1 ]
Ghalamkari, Behbod [1 ]
机构：
[1] Islamic Azad Univ, Sci & Res Branch, Dept Elect & Comp Engn, Tehran, Iran
[2] Imam Khomeini Int Univ, Dept Elect Engn, Ghazvin, Iran
来源：
IETE JOURNAL OF RESEARCH | 2021年 / 67卷 / 01期
关键词：
Cognitive radio (CR); Dielectric resonator antenna (DRA); Narrowband (NB) reconfigurable; Ultra-wideband (UWB);
D O I：
10.1080/03772063.2018.1530075
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 new ultra-wideband (UWB) dielectric resonator antenna (DRA) integrated with a reconfigurable narrowband (NB) antenna is designed and analyzed for cognitive radio (CR) applications. The UWB antenna consists of a rectangular dielectric resonator which is fed by a microstrip line. The NB antenna composes of a rectangular ring patch and three stubs which is fed by a microstrip line. The UWB and reconfigurable NB antennas provide 2:1 VSWR bandwidth from 3 to 11 GHz and from (3.25 to 3.7 GHz, 5.5 to 6.5 GHz, and 8 to 8.4 GHz), respectively. There is a reasonable isolation between the antennas. The narrowband recon?gurability is achieved by two p-i-n diode switches within the antenna structure. A prototype of the integrated antenna was fabricated and its performance was verified. The dimensions of the antenna are 65 mm x 40 mm x 6.5 mm. The antenna represents good radiation characteristics. Also, in order to reduce mutual coupling, the space between the ground planes is 10 mm.
引用
收藏
页码：139 / 147
页数：9
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