| 摘要 |
A microwave circuit having a transmission line, a conductor and a dielectric gripped therebetween is disclosed. In this case, stubs are provided on the transmission line in at least two positions, at least one of the stubs extends across the transmission line to the both sides thereof with different lengths, and the distance between adjacent stubs and the lengths thereof are so selected that the transmission line has a predetermined frequency band and attenuation characteristics.
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