| 摘要 |
PURPOSE:To miniaturize a circuit, by connecting a part between the open terminals of two pairs of capacitors different from each other with 1/4 wavelength strip lines, and connecting strip lines for inputting/outputting to four connecting points among those capacitors and strip lines. CONSTITUTION:Short stubs 9 and 10 are connected to the connecting points of two capacitors 5 and 6, and 7 and 8 being connected in series, and the other ends of the capacitors 5 and 7, and 6 and 8 are connected with the 1/4 wavelength strip lines 11 and 12, and also, from those connected points, the strip lines 1-4 for inputting/outputting are drawn out. Since the wavelength of the strip lines 11 and 12 are lambda/4 length, and those parts are the same as before, the strip lines are compressed in such a way that they meander, thereby, intervals between the strip lines 1 and 4 and between 2 and 3 can be reduced. In such a way, it is possible to obtain a branch line type hybrid circuit miniaturized in a vertical and a horizontal directions.
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