Dual‐band balanced coupler with wideband common‐mode suppression | Zendy

Feng Wenjie | Zendy; Duan Xiwen | Zendy; Shi Yongrong | Zendy; Shi Suyang | Zendy

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Dual‐band balanced coupler with wideband common‐mode suppression

Author(s) -

Feng Wenjie,

Duan Xiwen,

Shi Yongrong,

Shi Suyang

Publication year - 2020

Publication title -

international journal of rf and microwave computer‐aided engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 39

eISSN - 1099-047X

pISSN - 1096-4290

DOI - 10.1002/mmce.22077

Subject(s) - broadband , rat race coupler , hybrid coupler , microstrip , common mode signal , wideband , power dividers and directional couplers , multi band device , transmission line , electrical impedance , electronic engineering , physics , topology (electrical circuits) , electrical engineering , optoelectronics , optics , engineering , transmission (telecommunications) , antenna (radio) , analog signal

A novel compact dual‐band balanced coupler with differential‐mode power division, broadband common‐mode, and common‐to‐differential‐mode conversion suppression is proposed. In these double‐functionality balanced‐coupler architectures, double‐sided parallel‐strip line 180° phase inverters are used to realize the broadband common‐mode rejection. Moreover, the frequency is tunable by changing the characteristic impedance of the transmission line. For practical verification, a balanced couplers ( ε r = 2.65, h = 0.5 mm, tan( δ D ) = 0.003) operation at 0.9/1.8 GHz is constructed in microstrip technology and tested.

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