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A new wide stopband and high gain quasi‐Yagi filtering antenna
Author(s) -
Zheng Licheng,
Zhai Huiqing,
Wei Zichun,
Ma Shaobo,
Shi Junhao
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31529
Subject(s) - stopband , antenna (radio) , balun , stripline , electronic engineering , electrical engineering , computer science , engineering , physics , band pass filter
In this letter, a new wide stopband and high gain Quasi‐Yagi filtering antenna is proposed. At the beginning of feeder line in the improved Balun filtering antenna, it is integrated with the stripline low‐pass filter that contributes to wide out‐of‐band suppression. The proposed filtering antenna works from 2.25 GHz to 2.55 GHz, with a maximum gain of 8dBi at 2.5 GHz. Moreover, it possesses a faster roll‐off rate from 2.55 GHz(8 dB) to 2.8 GHz (−20 dB ) and a better rejection up to 12 GHz(5 times of central frequency) outside the working band.