An Annular Switchable Antenna For WiFi, WiMax, WLAN & UWB Frequency Range Applications
An Annular Switchable Antenna For WiFi, WiMax, WLAN & UWB Frequency Range Applications
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适用于 WiFi、WiMax、WLAN 的环形可切换天线
DOI：
10.1109/caps52117.2021.9730725
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Nitin Gupta
中科院分区：
文献类型：
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作者：
Jai Mangal;Nitin Gupta
本文考虑设计一种紧凑的可切换天线，用于使用四个环形贴片的超宽带频率范围应用。通过在天线上贴片处放置和移除环形贴片，对16个测试用例进行了分析。天线是由基板FR4环氧树脂制成的。天线的上贴片和接地面采用铜质材料设计。天线尺寸设置为34mm×30mm×1.6mm。本文介绍了部分接地的概念，它对获得更宽的- 10 dB带宽非常有用。天线带宽为- 10dB，范围为2ghz ~ 12ghz。在2.9 GHz谐振频率下，天线的反射系数为- 25.94 dB。该天线在10.6 GHz频率下的峰值增益可达7.09 dBi。该天线的辐射效率为97.25%。研究结果表明，将环形贴片全部贴到天线上，可以增加贴片的导通长度，从而使天线在较低频率下也能获得良好的反射系数。这使得天线适用于广泛的频带范围。
This paper contemplates designing of a compact switchable antenna for ultra-wideband frequency range applications using four annular patches. A total of sixteen test cases were analyzed in this paper by placing and removing annular patches at the upper patch of the antenna. The antenna is made of substrate called FR4 epoxy. The upper patch and ground plane of the antenna are designed using copper material. The antenna dimensions were set to be 34mm×30mm×1.6mm. This paper introduces the concept of partial ground which is very useful in attaining wider −10 dB bandwidth. The proposed antenna attains the −10dB bandwidth ranging from 2 GHz to 12 GHz. The antenna achieves a reflection coefficient of −25.94 dB at the frequency of resonance of 2.9 GHz. This presented antenna can achieve a peak gain of 7.09 dBi at the frequency of 10.6 GHz. The antenna achieves a radiation efficiency of 97.25%. This work points out that when all the annular patches were attached to the antenna the conduction length of the patch increased because of which the antenna can attain a good reflection coefficient even at a lower frequency. This makes the antenna workable for a wide range of frequency bands.