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    • 11. 依法登记的发明
    • Planar monolithic self-oscillating mixer
    • 平面单片自振荡器
    • USH832H
    • 1990-10-02
    • US408848
    • 1989-09-15
    • Samuel Dixon, Jr.
    • Samuel Dixon, Jr.
    • H01L23/66H03B7/14H03D9/06H04B1/26
    • H03B7/14H01L23/66H01L2924/0002H03D9/0633H04B1/26H01L2924/00
    • A planar monolithic self-oscillating mixer for millimeter wave applicationss formed on a gallium arsenide substrate. A via hole extends from the bottom surface to the top surface of the substrate. Metal is plated on the bottom surface of the substrate and in the via hole forming a heat sink. Above the heat sink are disposed three gallium arsenide layers--an N layer between two N.sup.+ layers. The top layer has a metal connection formed thereon. The gallium aresenide layers are epitaxially deposited using vapor phase techniques. Unwanted portions of these layers are mesa etched away. A radio frequency microstrip transmission line is disposed on the upper surface of the substrate. This transmission line is gap coupled to the Gunn diode and extends to one edge of the substrate. An intermediate frequency microstrip transmission line is connected to the metal connection on the top N.sup.+ layer. This line has a portion disposed on the upper surface of the substrate and extends to the opposite edge of the substrate. Included in the intermediate frequency transmission line is a low pass filter and a beam lead capacitor. A bias line disposed on the substrate extends from one side and is connected to the intermediate frequency transmission line between the beam lead capacitor and the low pass filter.
    • 13. 发明授权
    • Millimeter wave signal limiter having ferrite loaded slots in ground
plane of image guide
    • 毫米波信号限制器在图像引导器的接地平面中具有铁氧体加载槽
    • US4511865A
    • 1985-04-16
    • US581833
    • 1984-02-21
    • Samuel Dixon, Jr.
    • Samuel Dixon, Jr.
    • H01P1/23H03G11/00
    • H03G11/006H01P1/23
    • A millimeter wave planar slot excited image guide ferrite power limiter crising a length of dielectric transmission line or waveguide for millimeter wave frequencies located on a relatively thin conductive ground plane, forming thereby an image guide. The ground plane includes a plurality of selectively positioned slots along the length of the ground plane under the dielectric waveguide in which bodies of high anisotropy uniaxial barium ferrite material are placed and which collectively act as a passive ferrite power limiter when biased by an externally applied biasing magnetic field. A biasing magnetic field is provided by a pair of rare earth permanent magnets located along the sides of the image guide perpendicular to the orientation of the RF magnetic fields of the signal propagating down the dielectric waveguide. This leaves the top surface of the image dielectric guide accessible for other integrated circuit fabrication.
    • 一种毫米波平面槽激励图像引导铁氧体功率限制器,其包括位于相对薄的导电接地平面上的毫米波频率的介电传输线或波导的长度,从而形成图像引导件。 接地平面包括沿着介电波导下的接地平面的长度的多个选择性定位的槽,其中放置有高各向异性单轴钡铁氧体材料的主体,并且当通过外部施加的偏压偏置时它们共同作为被动铁氧体功率限制器 磁场。 偏置磁场由垂直于在介质波导下传播的信号的RF磁场的取向垂直于图像导向器的侧面的一对稀土永磁体提供。 这使得图像介质引导件的顶表面可用于其他集成电路制造。