Design of compact branch-line coupler with coupled resonators
Journal
2007 Asia-Pacific Microwave Conference
Pages
1375-1378
Date Issued
2007-12
Author(s)
Abstract
A compact branch-line coupler is proposed in this paper. The quarter-wavelength transmission lines are equivalent to the couplings between resonators. Thus, the conventional branch-line coupler can be transformed into a coupled-resonator network. With the proposed miniaturized resonators and coupling structure, the circuit size can be reduced by 50% and a 4% fractional bandwidth can be achieved.
SDGs
Type
conference paper