Compact filtering power divider with extended stopband using out‐of‐phase feeding scheme | Zendy

Shen Guangxu | Zendy; Feng Wenjie | Zendy; Che Wenquan | Zendy

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Compact filtering power divider with extended stopband using out‐of‐phase feeding scheme

Author(s) -

Shen Guangxu,

Feng Wenjie,

Che Wenquan

Publication year - 2019

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2019.3077

Subject(s) - stopband , scheme (mathematics) , power dividers and directional couplers , power (physics) , phase (matter) , frequency divider , electronic engineering , control theory (sociology) , computer science , topology (electrical circuits) , materials science , electrical engineering , mathematics , physics , engineering , band pass filter , telecommunications , mathematical analysis , quantum mechanics , control (management) , artificial intelligence

A compact filtering power divider is proposed with very wide stopband suppression in this letter. First, the dual‐composite right‐ and left‐handed (D‐CRLH) resonator is employed, while one extended stopband can thus be achieved due to its inherently slow‐wave response. Secondly, one out‐of‐phase feeding scheme is introduced to realise D‐CRLH filtering power divider. By putting the input and output ports on the different sides of D‐CRLH resonators, the mismatching can be realised for the harmonics below 10 GHz and wide stopband suppression is obtained accordingly. For experimental verification, a compact filtering power divider is designed, fabricated, and measured. Wide stopband suppression is observed until 5 f 0 without using bandstop structures or complex coupling topology.

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