PURPOSE: To stably obtain an excellent characteristic with good reproductivity in case of mass-production by forming a susceptance element by a conductor film pattern adhered closely to a dielectric plate.
CONSTITUTION: The dielectric plate 4 is provided in parallel with a guide axis of a circular waveguide 1 in the circular waveguide 1 and the susceptance element 5 is adhered closely to the dielectric plate 4 and made of a thin and long conductor film pattern at a right angle to the guide axis 2. That is, the susceptance element 5 in place of a conductor screw is made of the conductor film pattern adhered closely to the dielectric plate 4. Thus, the photo etching technology is applied and an excellent and stable characteristic is obtained at a low cost, supported contactless to the circular waveguide 1, with a low loss, the supporting structure is simplified and the weight is made light.
ASAO HIDEKI
ISODA YOJI
MIYAZAKI MORIYASU
| JPS5323249A | 1978-03-03 | |||
| JP53108842B | ||||
| JPS5838002A | 1983-03-05 |
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