| 摘要 |
PURPOSE:To obtain two signals with a different 180 deg. phase at a high frequency band by providing a primary side exciting electrode having the length of an 1/2 wavelength, a pair of output electrodes having 1/4 wavelength to induce two signals with a different 180 deg. phase, an earth electrode and a pull-out electrode, on a substrate. CONSTITUTION:At the rear surface side surface of a substrate 11, a primary side exciting electrode 12 and an input line 13 having the length of the 1/2 wavelength of a working frequency are formed. At the front surface side surface of the substrate 11, a pair of output electrodes 14 and 15 having the length of an 1/4 wavelength, an earth electrode 16 and a pair of pull-out electrodes 17 and 18 are formed. The pair of output electrodes 14 and 15 is linked electromagnetically with the exciting electrode 12 by being formed to the condition opposite to the each half of the right and left of the exciting electrode 12 at the rear surface side. The earth electrode 16 is formed along 3 sides of the substrate 11 and connected to outside edges 14a and 15a of the output electrodes 14 and 15. Respective pull-out electrodes 17 and 18 are connected to the input of respective amplifiers A2 and A3 of a push pull amplifier. Thus, two RF signals having a different 180 deg. phase can be supplied to both amplifiers A2 and A3.
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