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    • 5. 发明专利
    • Notch filter
    • NOTCH过滤器
    • JPS6178201A
    • 1986-04-21
    • JP19998584
    • 1984-09-25
    • Nippon Dengiyou Kosaku Kk
    • HATANAKA HIROSHI
    • H01P1/213H01P1/208H01P7/06
    • H01P1/2082
    • PURPOSE:To attain easy and simple constitution, manufacture and adjustment and excellent electric characteristic by providing a coupling loop to one short- circuit wall and providing an element respectively adjusting each resonance frequency of the H and V modes with different frequency to a cylindrical side wall. CONSTITUTION:One coupling loop 3 is provided to one short-circuit wall 2, and elements 5, 6 adjusting respectively each resonance frequency of the H and V mode having different frequency are provided to the cylindrical side wall 1. A circular waveguide cavity resonator is formed so that the in-tude inserting directions of the elements 5, 6 are at a right angle together and an angular difference of 45 deg. or 135 deg. is provided respectively with the loop face of the coupling loop 3. In exciting the circular waveguide cavity resonator with two waves having different frequency via a coaxial terminal 4 and the coupling loop 3, the electric fields EH and EV are made orthogonal together and also the magnetic fields are orthogonal together, then the H and V modes are resonated at the same time.
    • 目的:通过为一个短路壁提供耦合回路,并提供一个元件,分别将不同频率的H和V模式的每个谐振频率调整到圆柱形侧壁,从而实现简单,简单的结构,制造和调整以及优异的电气特性 。 构成:将一个耦合回路3提供给一个短路壁2,并且将分别调节具有不同频率的H和V模式的每个谐振频率的元件5,6提供给圆柱形侧壁1.圆形波导腔谐振器 形成为使得元件5,6的插入方向成一直线成直角,并且角度差为45度。 或135度 分别设置有耦合回路3的环面。在通过同轴端子4和耦合回路3激励具有不同频率的两个波形的圆形波导腔谐振器中,电场EH和EV被正交在一起,并且 磁场正交在一起,则H和V模式同时谐振。
    • 9. 发明专利
    • Millimeter wave band filter and method for increasing stop band attenuation thereof
    • MILLIMETER WAVE BAND FILTER AND METHOD FOR INCREASING STOP BAND AGTORATION WITHEROFOF
    • JP2014017695A
    • 2014-01-30
    • JP2012154326
    • 2012-07-10
    • Anritsu Corpアンリツ株式会社
    • KAWAMURA HISASHIOTANI AKIHITO
    • H01P1/208H01P1/207H01P1/212
    • H01P1/20H01P1/162H01P1/2082
    • PROBLEM TO BE SOLVED: To provide a millimeter wave band filter having no characteristic deterioration due to wavefront conversion, applying a high degree of freedom in design of a radio wave half mirror, having little loss due to space radiation, and being capable of increasing an attenuation of a stop band.SOLUTION: In a millimeter wave band filter, a waveguide in a waveguide tube 21 for transmitting electromagnetic waves in a prescribed frequency range within a millimeter wave band in a TE10 mode is provided with a resonator formed with a pair of radio wave half mirrors 40A and 40B, to selectively allow frequency components having a resonance frequency of the resonator as the center thereof to pass therethrough. In the waveguide between an end of the waveguide tube 21 and the radio wave half mirror 40A, a high-pass filter 30, which has a waveguide aperture narrowed to match its cutoff frequency to an upper limit of a stop band in a low-frequency side of a filter passband, is formed to increase an attenuation of the stop band in the low-frequency side. In addition, choke grooves 36 provided on an inner wall of the high-pass filter 30 form a band rejection filter 35 for preventing electromagnetic waves in a stop band in a high-frequency side from passing therethrough to increase an attenuation of the stop band in the high-frequency side.
    • 要解决的问题:为了提供一种由于波前转换而没有特性劣化的毫米波段滤波器,在由于空间辐射而具有很小损失的无线电波半反射镜的设计中施加高自由度,并且能够增加 阻带的衰减。解决方案:在毫米波段滤波器中,波导管21中用于以TE10模式在毫米波段内以规定频率范围传输电磁波的波导设置有形成有一对 无线电波半反射镜40A和40B,以选择性地允许具有作为其中心的谐振器的谐振频率的频率分量通过。 在波导管21的端部和无线电波半反射镜40A之间的波导中,具有波导孔径变窄以使其截止频率与低频中的阻带的上限相匹配的高通滤波器30 形成滤波器通带的一侧以增加低频侧的阻带的衰减。 此外,设置在高通滤波器30的内壁上的扼流槽36形成带阻滤波器35,用于防止高频侧的阻带中的电磁波通过,以增加阻带的衰减 高频侧。
    • 10. 发明专利
    • High-frequency module
    • 高频模块
    • JP2005217601A
    • 2005-08-11
    • JP2004019709
    • 2004-01-28
    • Tdk CorpTdk株式会社
    • FUKUNAGA TATSUYA
    • H01L23/12H01L23/04H01L23/552H01L23/66H01P1/208H01P5/08H01P5/107H01P5/18
    • H01P5/185H01L23/04H01L23/552H01L23/66H01L2924/16152H01L2924/1616H01P1/2082H01P1/2088
    • PROBLEM TO BE SOLVED: To provide a high-frequency module having less insertion loss. SOLUTION: The module is provided with a substrate 3 over which a ground electrode 11 is formed, and a high-frequency module component 2 which has a concave 8 for waveguide tube type waveguide formed on one face and is mounted on the substrate 3 with the one surface contacting on the ground electrode 11. H-surface coupling windows 14, 15 opening in the waveguide tube type waveguide A formed between the ground electrode 11 and the surface of the concave 8 is formed on the ground electrode 11. The substrate 3 is configured in such a way that TEM mode lines 12, 13 are formed on the other surface of the substrate 3, and penetration conductors 16, 17 for short-circuiting the TEM mode lines 12, 13 near the H-surface coupling windows 14, 15 in the ground electrode 11 are formed. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供具有较少插入损耗的高频模块。 解决方案:模块设置有形成有接地电极11的基板3和形成在一个面上并且安装在基板上的用于波导管型波导的凹部8的高频模块部件2 接地电极11上形成有形成在接地电极11和凹面8的表面之间的波导管型波导A中的H面连接窗14,15。 基板3以这样的方式配置,即在基板3的另一个表面上形成TEM模式线12,13,以及用于使H型表面耦合窗附近的TEM模式线12,13短路的穿透导体16,17 形成接地电极11中的14,15。 版权所有(C)2005,JPO&NCIPI