What is it about?
A novel wideband high-gain antenna array with filtering response is presented. The proposed array consists of four Yagi antenna elements and one feeding network, which could realize signal filtering, power splitting as well as impedance transforming characteristics simultaneously. The operating mechanism is analyzed and the detailed design procedure is presented. For demonstration, a 2×2 array is designed at the center frequency of 3.0GHz with the measured fractional bandwidth of 73.3%.
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Why is it important?
Compared with the conventional array, the proposed filtering array shows high suppression in the stopband, good selectivity at passband edges and flat antenna gain in the passband. Simulated and measured results provide a good verification for the theoretical concepts.
Perspectives
In this paper, a wideband filtering antenna array is presented by employing the novel feeding network which has the functions of power division and signal filtering. The fabricated filtering array with the FBW of 73.3% also demonstrates wide and deep out-of-band suppression, sharp band-edge characteristic and flat antenna gain in the passband. The detailed design procedures are also presented, which can be helpful to design the wideband filtering array adopting proposed structures.
Gaoya Dong
Beijing University of Posts and Telecommunications
Read the Original
This page is a summary of: Wideband filtering Yagi antenna array, Journal of Electromagnetic Waves and Applications, August 2018, Taylor & Francis,
DOI: 10.1080/09205071.2018.1515039.
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