Open AccessDesign of compact dual‐mode dual‐band filtering power divider with high selectivity
Author(s) -
Cai Chuantao,
Wang Jianpeng,
Deng Yijing,
Li JiaLin
Publication year - 2015
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.2015.1750
Subject(s) - multi band device , power dividers and directional couplers , resonator , wilkinson power divider , frequency divider , current divider , resistor , topology (electrical circuits) , electronic engineering , power (physics) , dual (grammatical number) , division (mathematics) , transmission (telecommunications) , mode (computer interface) , engineering , electrical engineering , computer science , physics , mathematics , voltage , art , literature , quantum mechanics , antenna (radio) , operating system , arithmetic
A new design method for a compact dual‐mode dual‐band filtering power divider is proposed. To achieve two transmission poles in both of the two passbands, the odd‐ and even‐mode resonant properties of the dual‐mode resonator are employed in the design. By symmetrically locating four dual‐mode resonators at both sides of the main transmission line and choosing the proper output topology, the introduced circuit can successfully realise the dual‐band power division and filtering selectivity property. Two resistors are utilised to achieve good in‐band isolation performance of the filtering power divider. For demonstration, a dual‐band filtering power divider with two passbands centred at 2.2 and 2.7 GHz was designed and measured. Simulated and measured results are provided which show a good agreement.