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    • 2. 发明授权
    • Microwave harmonic absorption filter
    • 微波谐波吸收滤波器
    • US4060778A
    • 1977-11-29
    • US704211
    • 1976-07-12
    • Ibrahim El HefniKenneth A. GreenDonald C. Cloutier
    • Ibrahim El HefniKenneth A. GreenDonald C. Cloutier
    • H01P1/209H01P1/20H01P1/16H01P1/22H01P1/26
    • H01P1/209
    • A microwave harmonic absorption filter is disclosed which has an extended single mode pass-band ranging over one or more octaves as well as enhanced attenuation in the stop-band. This filter has a primary, rectangular waveguide having one or more ridges on the inner surfaces of its elongated wall members. Secondary waveguides are provided on the outer surfaces of these wall members and these secondary waveguides serve to diminish propagation of microwave energy in the stop-band. Apertures extend through the wall members of the primary, ridged, rectangular waveguide so that microwave energy within the range of frequencies of the stop-band can be transmitted from the primary waveguide into the secondary waveguides.
    • 公开了一种微波谐波吸收滤波器,其具有范围超过一个或多个八度的扩展单模通带以及阻带中的增强的衰减。 该过滤器具有在其细长壁构件的内表面上具有一个或多个脊的主要矩形波导。 次级波导设置在这些壁构件的外表面上,并且这些次级波导用于减少阻带中的微波能量的传播。 孔径延伸通过主要的脊状矩形波导的壁构件,使得阻带的频率范围内的微波能量可以从初级波导传输到次级波导中。