@article{oai:kitami-it.repo.nii.ac.jp:00006375,
 author = {柴田, 孝次 and 品田, 雄治},
 issue = {1},
 journal = {北見工業大学研究報告},
 month = {Nov},
 note = {application/pdf, This paper describes the necessary condition to widen the bandwidth of coupling in a two-wire line directional coupler with nonuniform coupling.　In addition， we have shown by numerical example that it is possible to design a two-wire line directional coupler with wide band coupling.　　It is assumed that the coupling coefficient is arbitrarily nonuniform in the direction of transmission line，and is represented by the Fourier series. By dividing the Fourier series of coupling coefficients into four groups， physical meaning in widening frequency characteristics of coupling becomes clear.　0n the basis of this method， necessary distributions of coupling are derived，and numerical examples of design are shown in the cases where the Fourier series components are taken by several terms.},
 pages = {73--89},
 title = {不均一結合二線条方向性結合器の解析},
 volume = {7},
 year = {1975}
}