Open AccessUniplanar Millimeter-Wave Log-Periodic Dipole Array Antenna Fed by Coplanar Waveguide
Author(s) -
Guohua Zhai,
Yong Cheng,
Qiuyan Yin,
Shouzheng Zhu,
Jianjun Gao
Publication year - 2013
Publication title -
international journal of antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 37
eISSN - 1687-5877
pISSN - 1687-5869
DOI - 10.1155/2013/430618
Subject(s) - coplanar waveguide , dipole antenna , balun , optoelectronics , monolithic microwave integrated circuit , coaxial antenna , return loss , antenna (radio) , extremely high frequency , antenna measurement , materials science , wideband , electrical engineering , electronic engineering , physics , engineering , optics , telecommunications , microwave , amplifier , cmos
A uniplanar millimeter-wave broadband printed log-periodic dipole array (PLPDA) antenna fed by coplanar waveguide (CPW) is introduced. This proposed structure consists of several active dipole elements, feeding lines, parallel coupled line, and the CPW, which are etched on a single metallic layer of the substrate. The parallel coupled line can be optimized to act as a transformer between the CPW and the PLPDA antenna. Meanwhile, this transform performs the task of a balun to achieve a wideband, low cost, low loss, simple directional antenna. The uniplanar nature makes the antenna suitable to be integrated into modern printed communication circuits, especially the monolithic millimeter-wave integrated circuits (MMIC). The antenna has been carefully examined and measured to present the return loss, far-field patterns, and antenna gain
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