Open AccessFrequency‐selectable dual‐band Wilkinson divider/combiner
Author(s) -
Chongcheawchamnan Mitchai,
Julrat Sakol,
Shafique Mohammad Farhan,
Robertson Ian D.
Publication year - 2013
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0113
Subject(s) - wilkinson power divider , multi band device , dual (grammatical number) , frequency divider , current divider , power dividers and directional couplers , electronic engineering , computer science , physics , telecommunications , electrical engineering , engineering , art , antenna (radio) , literature
A technique for realising a compact frequency‐selectable dual‐band Wilkinson divider/combiner is presented in this study. To provide a frequency‐selection function, the band‐pass transmission‐line transformer (TLT) in a dual‐band device is replaced with a tuneable band‐reject TLT. To realise this tuneable device, a variable capacitively loaded spur‐line filter is proposed for its compact size. The theory based on an ideal transmission‐line circuit is developed to provide a design procedure. The proposed circuits are demonstrated with simulated and measured results of a Wilkinson divider/combiner fabricated on FR4 substrate.