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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-09-14
A Printed Log-Periodic Tree-Dipole Antenna (Plptda)
By
Shu Lin,

    Dr. Shu Lin

    Harbin Institute of Technology

    China

    Homepage

Shan Luan,

    Dr. Shan Luan

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Yudie Wang,

    Dr. Yudie Wang

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Xiao Luo,

    Dr. Xiao Luo

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Xue Han,

    Dr. Xue Han

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Xing-Qi Zhang,

    Dr. Xing-Qi Zhang

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Yu Tian,

    Dr. Yu Tian

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Xin-Yue Zhang

    Dr. Xin-Yue Zhang

    School of Electronics and Information Engineering

    Harbin Institute of Technology

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 21, 19-32, 2011
doi:10.2528/PIERM11080109 | Google Scholar

Abstract
A miniaturized printed log-periodic fractal dipole antenna is proposed. Tree fractal structure is introduced in an antenna design and evolves the traditional Euclidean log-periodic dipole array into the log-periodic second-iteration tree-dipole array (LPT2DA) for the first time. Main parameters and characteristics of the proposed antenna are discussed. A fabricated proof-of-concept prototype of the proposed antenna is etched on a FR4 substrate with a relative permittivity of 4.4 and volume of 490 mm × 245 mm × 1.5 mm. The impedance bandwidth (measured VSWR < 2) of the fabricated antenna with approximate 40% reduction of traditional log-periodic dipole antenna is from 0.37 to 3.55 GHz with a ratio of about 9.59 : 1. Both numerical and experimental results show that the proposed antenna has stable directional radiation patterns and apparently miniaturized effect, which are suitable for various ultra-wideband applications.
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Citation
Shu Lin, Shan Luan, Yudie Wang, Xiao Luo, Xue Han, Xing-Qi Zhang, Yu Tian, and Xin-Yue Zhang, "A Printed Log-Periodic Tree-Dipole Antenna (Plptda)," Progress In Electromagnetics Research M, Vol. 21, 19-32, 2011.
doi:10.2528/PIERM11080109
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