A Compact Fractal-Shaped Antenna for Ultrawideband and Bluetooth Wireless Systems With WLAN Rejection Functionality

被引：32

作者：

Gorai, Abhik ^{[1
]}

Pal, Manimala ^{[2
]}

Ghatak, Rowdra ^{[3
]}

机构：

[1] KIIT Univ, Sch Elect Engn, Bhubaneswar 751024, Orissa, India

[2] NFET, Radio Engn & Antenna Lab, Dept Elect & Commun Engn, NSHM Knowledge Campus Durgapur, Durgapur 713212, India

[3] Natl Inst Technol Durgapur, Microwave & Antenna Res Lab, Dept Elect & Commun Engn, Durgapur 713209, India

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

关键词：

Modified meandered stub; quadratic Koch fractal; quasi-self-complementary; ultrawideband (UWB) antenna; PRINTED MONOPOLE ANTENNA; WIDE-BAND ANTENNA; BANDWIDTH ENHANCEMENT; UWB ANTENNA; SINGLE; SLOTS;

D O I：

10.1109/LAWP.2017.2702208

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 compact planar quasi-self-complementary antenna is presented for ultrawideband applications. The antenna also radiates at Bluetooth frequency band centered at 2.4 GHz and exhibits band rejection at 5.5 GHz. A Koch fractal boundary is embedded over the hexagonal-shaped radiator to improve the input impedance matching of the antenna at higher frequencies. An arc-shaped protruded ground plane is incorporated to match the input impedance of the antenna at lower frequencies. A modified meandered-shaped stub is introduced to resonate at Bluetooth frequency band. The property of band rejection is achieved by etching a quadratic fractal slot on the radiator. Overall size of the antenna is 18.5 x 39 mm(2). The antenna shows almost a constant group delay with a deviation of 1 ns throughout the operational bandwidth and also has a stable radiation pattern. An equivalent circuit is also developed for the proposed antenna. The results obtained from circuit model, electromagnetic simulation, and measurement are in good agreement.

引用

页码：2163 / 2166

页数：4

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