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Rat Race 回路の研究（その3）外部補償によるRat Race回路の広帯域化 Broadbanding of the Rat Race Circuit by External Compensation 品田, 雄治 application/pdf The Rat Race circuit operates as a hybrid circuit at the center frequency， but as the frequency of operation becomes　discrepant from the　center　frequency，its　input immittance is no longer　real，but　contains　an　imaginary part which　leads　to　poor matching and to poor isolation. Such defects can be avoided by means of susceptance compensation or reactance compensation.　A practical method of　susceptance compensation can be realized in the form of shunt inductive susceptance，connected to each port of less self admittance. Another method will be by reactance compensation with series capacitance. There are other methods of broadbanding， e･g. by making the image immittance diagonany and by selecting the terminating immittance in accordance with the image immittance. These methods of broadbanding may be combined， leading to composite compensation techniques. 北見工業大学 1971-11 jpn departmental bulletin paper https://kitami-it.repo.nii.ac.jp/records/6274 北見工業大学研究報告 3 1 93 107 https://kitami-it.repo.nii.ac.jp/record/6274/files/3-1-9.pdf application/pdf 5.0 MB 2016-11-22