Design and realization of a new compact branch-line coupler using defected ground structure

@article{Wang2008DesignAR,
  title={Design and realization of a new compact branch-line coupler using defected ground structure},
  author={Huaming Wang and Xueguang Liu and Wenfeng Cai and Hongfang Cao},
  journal={2008 9th International Conference on Solid-State and Integrated-Circuit Technology},
  year={2008},
  pages={1376-1379}
}
A new compact branch-line directional coupler is proposed combined the T-model branch line coupler with defected ground structure (DGS). Using transmission theory, the parameter selection limit about the T-Model equivalent structure is discussed firstly. Then a T-model branch line coupler with DGS is proposed and optimum designed with simulation software… CONTINUE READING