Open AccessWideband and compact quasi‐Yagi antenna with bowtie‐shaped drivers
Author(s) -
Wang Hao,
Chen Yan,
Liu Fangshu,
Shi Xiaowei
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.2454
Subject(s) - wideband , return loss , microstrip antenna , stripline , broadband , bandwidth (computing) , microwave , microstrip , optics , antenna (radio) , physics , acoustics , electrical engineering , telecommunications , engineering
A wideband and compact end‐fire antenna with bowtie‐shape drivers is proposed. Based on a wideband microstrip‐to‐coplanar stripline transition and bowtie‐shaped drivers, a broadband impedance bandwidth of more than 75% (4.70–10.44 GHz) for return loss less than − 15 dB and a gain of 5.0–9.1 dBi are obtained. What is more, the front‐to‐back ratio over the frequency of interest is less than − 10 dB. The overall dimensions of the proposed antenna are only 30 × 24.24 mm 2 . A prototype is fabricated and measured. The simulated and measured results of the proposed antenna indicate that it is suitable for phased array and microwave imaging systems.