@article{oai:kitami-it.repo.nii.ac.jp:00006397,
 author = {SHIBATA, Koji and SHINADA, Yuji and MATSUMOTO, Akio},
 issue = {2},
 journal = {北見工業大学研究報告},
 month = {Jun},
 note = {application/pdf, It is the purpose of this paper to point out the general plurality of solutions in synthesizing asymmetric multi-element coupled-transmission-line directional coupler.  In this synthesis　method，the coupling coefficient of each element is determined on the basis of the analysis of F matrix by using the power division ratio between the two output ports. Applying this synthesis procedure to the asymmetric multi element coupled-transmission-line directional coupler(n≧4)，we have found the solution satisfying the given transmission characteristic has plurality，and the coupling coefficients calculated by this synthesis are tabulated for 3,4,5 and 6 elements coupler.},
 pages = {351--391},
 title = {On the Plurality of Solutions in Synthesizing Asymmetric Multi-Element Coupled-Transmission-Line Directional Couplers},
 volume = {7},
 year = {1976}
}