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31.发明公开
公开(公告)号：EP1875549A2
公开(公告)日：2008-01-09
申请号：EP06727950.5
申请日：2006-04-17
申请人： NXP B.V.
CPC分类号： H01P3/123 , H01P1/005 , H03D9/0641
摘要： The present invention provides a broadband waveguide mixer, comprising: a waveguide having a substantially v-shaped groove in its inner surface; a broadband antenna coupling in the V-groove; and mixing means for mixing signals received by the broadband antenna. The present invention further provides a high frequency electromagnetic wave receiver comprising the aforesaid broadband waveguide mixer. The broadband waveguide mixer and the high frequency electromagnetic wave receiver have the advantages of broad single mode operating frequency band, lower loss, lower noise, and they can be easily produced and assembled to lower cost.
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公开(公告)号：EP1000491A4
公开(公告)日：2001-09-05
申请号：EP98938061
申请日：1998-07-28
申请人： MERRIMAC IND INC
发明人： LOGOTHETIS JAMES J
CPC分类号： H04L27/2039 , H03D7/1408 , H03D9/0641
摘要： A double-balanced microwave biphase modulator circuit is provided with a first balun (9) for transforming the unbalanced RF input impedance to a balanced biode impedance and providing direct current ground return paths, and a second balun (11) for transforming the balanced diode impedance to the unbalanced RF output impedance and providing access for data input (12). The first balun (9) consists of a transmission line (1) attached from a coupled pair of transmission lines (2A, 2B) to ground. The second balun (11) consists of three pairs of coupled transmission lines (4A, 4B, 5A, 5B, 6A, 6B), in which the first two pairs of transmission lines (4A, 4B, 5A, 5B) are attached to a diode ring (10), to a data input filter (7), to a circuit ground, and to the third pair of transmission lines (6A, 6B).
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33.发明授权Low-noise-block downconverter for use with flat antenna receiving dual polarized electromagnetic waves 失效低噪音用于在平面天线为使用双极化电磁波Abwärtsumwandlerblock
公开(公告)号：EP0523770B1
公开(公告)日：1999-09-29
申请号：EP92201921.1
申请日：1992-06-29
发明人： Kanda, Minoru, Matsushita Elec. Works Ltd. , Komatsu, Mikio, Matsushita Elec. Works Ltd. , Ao, Naoki, Matsushita Elec. Works Ltd. , Masamoto, Kyoji, Matsushita Elec. Works Ltd. , Kimura, Yoshitaka, Matsushita Elec. Works Ltd.
CPC分类号： H03D9/0641 , H01Q1/247 , H01Q21/245 , H03D2200/0005
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34.发明公开
公开(公告)号：EP0906658A1
公开(公告)日：1999-04-07
申请号：EP97929173.0
申请日：1997-06-11
申请人： Italtel s.p.a.
发明人： PILONI, Marco , CATTANEO, Fulvio
CPC分类号： H03D9/0641
摘要： The following description concerns a subharmonic frequency converter for applications to millimetric radio waves. The circuit structure comprises a diplexer filter realized in thin film on alumina layer set up by a pass-band section for an incoming local oscillator signal LO/2 with subharmonic frequency, and a low pass section for a signal with intermediate frequency IF. The point common to both sections is connected to a gate of a low pass filter LPS realized in microstrip on a quartz layer letting making pass the subharmonic and blocking the fundamental. The other gate of the LPS filter is connected to a head of a pair of mixer diodes in GaAs put in antiparallel on the same quartz layer; the other head of the pair is connected to ground. The diodes are at the centre of a rectangular cavity closed on one side by a short-circuit plate and on the opposite communicating with a rectangular waveguide carrying a radiofrequency signal RF.
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公开(公告)号：EP0906657A1
公开(公告)日：1999-04-07
申请号：EP97928186.0
申请日：1997-06-11
申请人： Italtel s.p.a.
发明人： PILONI, Marco
CPC分类号： H03D9/0641
摘要： The following description regards a frequency converter (1) for applications on millimetric radio waves. The circuit structure comprises a diplexer filter realized in thin film on an alumina layer connected to a balun set up by a quartz plate on which two mixing diodes in GaAs have been mounted, placed in the centre of a rectangular cavity (2) closed on one side by a short circuit plate and on the opposite side communicating with a rectangular waveguide (4) transporting a radio frequency signal RF. On the upper side of the plate three parallel metallic bands have been put in the sense of the width of the cavity, between the bands the diodes are connected in series. The most external bands are welded to the walls of the cavity (2), the central one on the other hand is connected to the point common to both sections of the diplexing filter by means of a metallic strap in the air welded to a microstrip. The ports of the local oscillator signals LO and an intermediate frequency IF are set up by two connected coaxial connectors (7, 8) by means of glass-bead (5, 6) to respective microstrips of the diplexer filter.
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公开(公告)号：EP0721697A1
公开(公告)日：1996-07-17
申请号：EP95926956.0
申请日：1995-07-19
发明人： RUST, Stefan
CPC分类号： H03D9/0641 , H03D7/1408 , H03D2200/0023
摘要： The invention concerns a dwarf wave mixer realized by windowing and is characterized in that a coplanar lead (320) is produced in the plating (212) of the substrate (211), the coplanar lead (320) dividing the plating (212) into two parts; in that the coplanar lead (320) is guided out along the narrow sides of the waveguide (11, 12); in that the coplanar lead (320) is connected to each of the two parts via a first and second diode (41, 42), respectively; and in that at least two slotlines (51 - 54) are produced parallel to the broad sides of the waveguide (11, 12) in the plating (212).
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37.发明公开Low-noise-block downconverter for use with flat antenna receiving dual polarized electromagnetic waves 失效低噪音在用于双极化的电磁波的平面天线使用Abwärtsumwandlerblock。
公开(公告)号：EP0523770A1
公开(公告)日：1993-01-20
申请号：EP92201921.1
申请日：1992-06-29
发明人： Kanda, Minoru, Matsushita Elec. Works Ltd. , Komatsu, Mikio, Matsushita Elec. Works Ltd. , Ao, Naoki, Matsushita Elec. Works Ltd. , Masamoto, Kyoji, Matsushita Elec. Works Ltd. , Kimura, Yoshitaka, Matsushita Elec. Works Ltd.
CPC分类号： H03D9/0641 , H01Q1/247 , H01Q21/245 , H03D2200/0005
摘要： A low-noise-block downconverter (LNB) for use with flat antennas receiving dual polarized electromagnetic waves includes a body case (11) mounted to rear side surface of the planar antenna, the body case having two wave guide input parts (14) corresponding to wave guide apertures of the antenna and enclosing a selective device alternatively allowing either one of two outputs corresponding to two different type polarized electromagnetic waves received. The LNB can be thereby made compact and minimized in thickness and weight.
摘要翻译： 用于与平面天线接收双极化电磁波使用的低噪声块下变频器（LNB）包括对应的主体壳体（11）安装到所述平面天线的后侧表面上，具有两个波导输入部件主体壳体（14） 波天线的导孔和包围可替代地允许要么两个输出对应于两个不同类型的偏振的电磁波中的一个接收的选择性设备。 的LNB由此可以制造得紧凑和在厚度和重量最小化。
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公开(公告)号：EP0511604A2
公开(公告)日：1992-11-04
申请号：EP92107072.8
申请日：1992-04-24
发明人： Tahim, Raghbir S.
IPC分类号： H01P1/213
CPC分类号： H03D9/0641 , H01P1/213 , H03D7/1408 , H03D2200/0017
摘要： A microwave mixer (10) is formed of three orthogonally oriented waveguides (12, 14, 16), each having a rectangular cross-section defined by a pair of opposed broad walls (46) and a pair of opposed sidewalls (48) wherein the ratio of cross-sectional dimensions typically is 2:1. The mixer includes an input coupling probe (22), a mixing region (30), and an output filter (24) disposed serially along a first of the waveguides. A second of the waveguides applies a reference LO signal via the probe to the mixing region, the mixing region employed in the preferred embodiment of the invention. A section of dielectric board (32) serves to support the diodes of the mixing region, components of the filter (24), and the probe in the first waveguide. The third waveguide applies an RF input signal to the mixing region via an input port (16) in a side of the first waveguide, and via an impedance matching taper (58) and a waveguide section of reduced height (62) which impedes egress of both an IF and an image signal produced in the mixing region by interaction of the LO and the RF signals. The filter (24) is located at the mixer IF output port (34) for reflecting an image-frequency signal back to the diodes of the mixing region for further interaction with the LO signal to generate additional IF signal in phase with the originally produced IF signal for additional power and a significantly higher signal-to-noise ratio.
摘要翻译： 微波混合器（10）由三个正交定向的波导（12,14,16）形成，每个波导具有由一对相对的宽壁（46）和一对相对的侧壁（48）限定的矩形横截面，其中 截面尺寸的比例通常为2:1。 混合器包括输入耦合探针（22），混合区（30）和沿第一波导串联设置的输出滤波器（24）。 第二个波导通过探针将参考LO信号施加到本发明的优选实施例中使用的混合区域的混合区域。 介电板（32）的一部分用于支撑混合区域的二极管，滤波器（24）的组件和第一波导中的探头。 第三波导通过第一波导侧的输入端口（16）和经由阻抗匹配锥度（58）和减小高度（62）的波导部分将RF输入信号施加到混合区域，该波导部分阻止出口 通过LO和RF信号的相互作用在混合区域中产生IF和图像信号。 滤波器（24）位于混频器IF输出端口（34）处，用于将图像频率信号反射回混合区域的二极管，以进一步与LO信号相互作用，以产生与原始产生的IF同相的附加IF信号 信号用于额外的功率和明显更高的信噪比。
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公开(公告)号：EP0443668A3
公开(公告)日：1991-11-13
申请号：EP91200312.6
申请日：1991-02-14
发明人： Volpicella, Nicola
CPC分类号： H03D9/0641 , H03D7/1408 , H03D7/16 , H03D7/18 , H03D9/0633 , H03D2200/0013
摘要： There is described an image rejection frequency converter comprising essentially a balun (DIV) used as a power divider for coupling a local oscillator signal to the ends of two frequency mixers (MIX1, MIX2). Said mixers (MIX1, MIX2) have ports to which arrive or from which come out intermediate radiofrequency signals (Fig. 1). The invention consists principally of integration of the power divider (DIV) and the mixers (MIX1, MIX2) in a planar structure based on a new concept provided in microstrip and in coplanar line.
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40.发明公开Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna 失效直接广播卫星接收机的低噪声块下变频器与平板天线集成
公开(公告)号：EP0348370A3
公开(公告)日：1990-02-28
申请号：EP89850194.5
申请日：1989-06-12
IPC分类号： H03D9/06
CPC分类号： H03D9/0641
摘要： A compact multi-layer flat antenna structure incorporating a low noise block down-converter on the power divider network layer of the antenna. RF circuit losses are reduced, and the antenna/receiver combination is made more compact, for flush mounting. The antenna/receiver combination finds particular utility in direct broadcast satellite (DBS) applications for single or dual orthogonal polarizations. The connection between the antenna and receiver may be implemented in stripline/ coplanar waveguide, or other known technologies such as microstrip, slotline, and finline.
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