-
公开(公告)号：US6031434A
公开(公告)日：2000-02-29
申请号：US156245
申请日：1998-09-18
CPC分类号： H01P1/2131
摘要： An ortho mode transducer (OMT)/multiplexer assembly having a corrugated junction and a coaxial dual mode waveguide resonator disposed around a central cylindrical waveguide. The corrugated junction diplexes signals, the higher frequencies passing through the central cylindrical waveguide and the lower frequencies passing through the coaxial dual mode resonator. Apertures in the dual mode resonator couple to an exit port and extract a first polarization from the lower frequencies passing through the dual mode resonator. The assembly may include a second aperture in the dual mode resonator for extracting a second polarization in a manner similar to the operation of the first aperture.
摘要翻译： 一种具有波纹结的正交模式换能器（OMT）/多路复用器组件和围绕中心圆柱形波导设置的同轴双模波导谐振器。 波纹结双绞线信号，通过中心圆柱形波导的较高频率和穿过同轴双模谐振器的较低频率。 双模谐振器中的孔耦合到出口并从通过双模谐振器的较低频率提取第一极化。 组件可以包括双模谐振器中的第二孔，用于以类似于第一孔的操作的方式提取第二极化。
-
2.发明授权Coupling mechanism for and filter using TE011 and TE01&dgr; mode resonators 有权使用TE011和TE01delta模式谐振器的耦合机制和滤波器公开(公告)号：US06304160B1
公开(公告)日：2001-10-16
申请号：US09304458
申请日：1999-05-03
申请人： Keith N. Loi , Paul J. Tatomir
发明人： Keith N. Loi , Paul J. Tatomir
IPC分类号： H01P120
摘要： A cavity-coupled microwave filter that uses TE011 and TE01&dgr; mode resonators. The cavity-coupled microwave filter includes an input port, a first resonator having a first opening, wherein the first opening receives electromagnetic energy from the input port, a second resonator having a second opening, wherein the second opening receives electromagnetic energy from the input port and wherein the first resonator and the second resonator are electromagnetically coupled. The cavity-coupled microwave filter further includes an output port, a third resonator having a third opening, wherein the third opening transfers electromagnetic energy to the output port and wherein the second resonator and the third resonator are electromagnetically coupled and a fourth resonator having a fourth opening, wherein the fourth opening transfers electromagnetic energy to the output port and wherein the third resonator and the fourth resonator are electromagnetically coupled. By using both positive and negative coupling between resonators and filter ports, both high side and low side transmission poles are created, thereby yielding a bandpass filter.
摘要翻译： 使用TE011和TE01delta模式谐振器的腔耦合微波滤波器。 空腔耦合微波滤波器包括输入端口，具有第一开口的第一谐振器，其中第一开口从输入端口接收电磁能量，第二谐振器具有第二开口，其中第二开口从输入端口接收电磁能量 并且其中所述第一谐振器和所述第二谐振器是电磁耦合的。 腔耦合微波滤波器还包括输出端口，具有第三开口的第三谐振器，其中第三开口将电磁能量传递到输出端口，并且其中第二谐振器和第三谐振器是电磁耦合的，并且第四谐振器具有第四开口 其中所述第四开口将电磁能量传递到所述输出端口，并且其中所述第三谐振器和所述第四谐振器是电磁耦合的。 通过使用谐振器和滤波器端口之间的正耦合和负耦合，产生高侧和低侧传输极，从而产生带通滤波器。
-
3.发明授权Microwave waveguide filter having rectangular cavities, and method for its fabrication 失效具有矩形腔的微波波导滤波器及其制造方法公开(公告)号：US06657521B2
公开(公告)日：2003-12-02
申请号：US10132949
申请日：2002-04-26
申请人： Paul J. Tatomir , James M. Barker , Keith N. Loi , Richard L. Bennett , Louis W. Hendrick , Rolf Kich
发明人： Paul J. Tatomir , James M. Barker , Keith N. Loi , Richard L. Bennett , Louis W. Hendrick , Rolf Kich
IPC分类号： H01P710
摘要： A microwave waveguide filter includes a main-line cavity structure with a group of at least two rectangular main-line cavities arrayed along a main propagation path and including a first main-line cavity and a second main-line cavity. Each main-line cavity includes a sidewall, and each pair of adjacent main-line cavities has a common transverse wall transverse to the main propagation path and a main-line aperture in the common transverse wall. A rectangular first feedback cavity is in microwave communication with each of the first main-line cavity and the second main-line cavity through the respective sidewall of the first main-line cavity and the second main-line cavity. There is a first-cavity feedback aperture between the first feedback cavity and the first main-line cavity, and a second-cavity feedback aperture between the first feedback cavity and the second main-line cavity. There may be additional feedback cavities as well.
摘要翻译： 微波波导滤波器包括主线腔结构，其具有沿着主传播路径排列并且包括第一主线腔和第二主线腔的至少两个矩形主线腔的组。 每个主线腔包括侧壁，并且每对相邻的主线腔具有横向于主传播路径的公共横向壁和在公共横向壁中的主线孔。 矩形的第一反馈空腔通过第一主线腔和第二主线腔的相应侧壁与第一主线腔和第二主线腔中的每一个微波连通。 在第一反馈空腔和第一主线腔之间存在第一腔反馈孔，以及在第一反馈空腔和第二主管腔之间的第二腔反馈孔。 也可能有额外的反馈腔。
-
4.发明授权Coupling mechanism with moving support member for TE.sub.011 and TE.sub.01.delta. resonators 有权用于TE011和TE01三角谐振器的移动支撑构件的耦合机构
公开(公告)号：US6150907A
公开(公告)日：2000-11-21
申请号：US304328
申请日：1999-05-03
申请人： Keith N. Loi , Paul J. Tatomir
发明人： Keith N. Loi , Paul J. Tatomir
摘要： The present invention is directed to improved coupling mechanisms for TE.sub.011 and TE.sub.01.delta. mode resonators. In one embodiment, the coupling mechanism provides an adjustable connection for transferring electromagnetic energy from a first resonator to a second resonator. Once the resonators are coupled, the coupling mechanism is adapted to allow adjustment of the magnitude and/or the phase of the electromagnetic energy while preserving the electromagnetic connection between the resonators. In another embodiment, the coupling mechanism provides a connection of the resonators using a waveguide. By varying the connection of the resonators with respect to the waveguide, positive relative coupling and/or negative relative coupling of the electromagnetic energy transferred between the waveguide and the resonators is provided.
摘要翻译： 本发明涉及改进TE011和TE01三角形共振器的耦合机制。 在一个实施例中，耦合机构提供用于将电磁能从第一谐振器传递到第二谐振器的可调连接。 一旦共振器被耦合，耦合机构适于允许调整电磁能量的大小和/或相位，同时保持谐振器之间的电磁连接。 在另一个实施例中，耦合机构使用波导提供谐振器的连接。 通过改变谐振器相对于波导的连接，提供了在波导和谐振器之间传递的电磁能的正相对耦合和/或负相对耦合。
-
5.发明授权Microwave filter having cascaded subfilters with preset electrical responses 失效具有预置电响应的级联子滤波器的微波滤波器
公开(公告)号：US6046658A
公开(公告)日：2000-04-04
申请号：US153121
申请日：1998-09-15
申请人： Paul J. Tatomir , Keith N. Loi , Louis W. Hendrick
发明人： Paul J. Tatomir , Keith N. Loi , Louis W. Hendrick
IPC分类号： H01P1/208
CPC分类号： H01P1/208
摘要： A microwave filter has first and second subfilters. Each subfilter has at least one single mode resonator and a preset electrical response. The second subfilter is cascaded to the first subfilter by coupling one of the at least one single mode resonator of the first subfilter to one of the at least one single mode resonator of the second subfilter. The microwave filter has an overall transfer function dependent upon the selection of the first and second subfilters from a plurality of subfilters having different preset electrical responses.
摘要翻译： 微波过滤器具有第一和第二子过滤器。 每个子滤波器具有至少一个单模谐振器和预设的电响应。 第二子滤波器通过将第一子滤波器的至少一个单模谐振器中的一个耦合到第二子滤波器的至少一个单模谐振器中的一个而级联到第一子滤波器。 微波滤波器具有取决于从具有不同预设电响应的多个子滤波器中选择第一和第二子滤波器的总传递函数。
-
公开(公告)号：US6118356A
公开(公告)日：2000-09-12
申请号：US154488
申请日：1998-09-16
CPC分类号： H01P7/06
摘要： A plurality of end caps engagable with a microwave cavity each have an underside configured differently to cause the microwave cavity to have different electrical responses depending on which end cap engages the microwave cavity. A microwave device includes a cylindrical cavity and an end cap movable within the cavity to change its axial position within the cavity thereby varying the volume and the electrical response of the cavity.
摘要翻译： 与微波空腔可接合的多个端盖各自具有不同的配置，以使微波腔具有不同的电响应，取决于哪个端盖接合微波腔。 微波装置包括圆柱形空腔和可在空腔内移动的端盖，以改变腔内的轴向位置，从而改变空腔的体积和电响应。
-
公开(公告)号：US5760667A
公开(公告)日：1998-06-02
申请号：US501595
申请日：1995-07-12
CPC分类号： H01P1/208
摘要： A bandpass filter having 4-degrees of freedom includes a plurality of resonant cavities having respective Qs where at least one of the Qs is different. A plurality of main couplings couple successive resonant cavities to establish a main signal path that provides a first degree of freedom for controlling the shape of the filter's frequency response over its passband. A plurality of bridge couplings couple pairs of the resonant cavities so that the cavities are connected in a canonical circuit topology. The bridge couplings provide second and third degrees of freedom for controlling the sharpness of the frequency response 's transition between its passband and stopband and controlling the linearity of its phase, respectively. The cavities' non-uniform Qs provide a fourth degree of freedom for controlling the amplitude of the filter's frequency response in the passband so that the amplitude is within a predetermined tolerance of a desired passband shape.
摘要翻译： 具有4自由度的带通滤波器包括多个谐振腔，其具有各自的Qs，其中Q中的至少一个不同。 多个主联接器将连续的谐振腔耦合以建立主信号路径，其提供用于在其通带上控制滤波器的频率响应的形状的第一自由度。 多个桥接器耦合成对的谐振腔，使得腔以规范电路拓扑连接。 桥耦合提供了第二和第三自由度，用于控制频率响应在其通带和阻带之间的转变的锐度，并分别控制其相位的线性度。 空腔的不均匀Qs提供了第四自由度来控制滤波器在通带中的频率响应的幅度，使得振幅在预期的通带宽度范围内。
-
8.发明授权
公开(公告)号：US5534881A
公开(公告)日：1996-07-09
申请号：US298630
申请日：1994-08-31
CPC分类号： H01P1/2138 , H01P1/208
摘要： A microwave cavity filter (30, 30A) is formed of a section of waveguide (36, 114) terminated by end walls (38, 40, 44, 166, 168, 176) to form cavities (32, 34, 32A, 34A) wherein ridges (100, 102, 118, 120) are disposed longitudinally within a cavity and extend from the cavity wall partway to a central region (104, 124) of the cavity. In a preferred embodiment of the invention, the ridges are disposed symmetrically about a central plane (144), each ridge having a first component (106, 122) perpendicular to the central plane and a second component (108, 126) parallel to the central plane. A cross-sectional shape of a filter cavity may approximate a semicircle wherein one wall section (88, 130) of the filter cavity is disposed within a diametric plane (216) of the cavity. The end walls of the cavities may be constructed as iris plates with apertures (82, 182, 184, 186, 190) for coupling energy of selected modes of electromagnetic resonance within the respective cavities. Each cavity supports two orthogonal modes wherein, within the region, between the parallel second components of the two ridges, the electromagnetic fields of a first mode are parallel to the central plane and the electromagnetic fields of the second mode are perpendicular to the central plane. Mode coupling screws (80, 156) may be provided for coupling of energy between the modes within a cavity. The ridging of the waveguide sections of the cavity reduces the low frequency cut-off, thereby enabling the cavities to be constructed with smaller dimensions to facilitate their emplacement within satellite communication systems.
摘要翻译： 微波空腔滤波器（30,30A）由一部分由端壁（38,40,44,166,168,176）端接的波导（36,114）形成，以形成空腔（32,34,32A，34A） 其中脊（100,102,118,120）纵向设置在空腔内并且从空腔壁的中途部分延伸到空腔的中心区域（104,124）。 在本发明的优选实施例中，脊围绕中心平面（144）对称设置，每个脊具有垂直于中心平面的第一部件（106,122）和与中心平面平行的第二部件（108,126） 飞机 过滤器空腔的横截面形状可以近似半圆形，其中过滤腔的一个壁部分（88,130）设置在空腔的直径平面（216）内。 空腔的端壁可以被构造为具有孔（82,182,184,186,190）的虹膜，用于将选定的电磁谐振模式的能量耦合在相应的空腔内。 每个腔支持两个正交模式，其中在该区域内，在两个脊的平行的第二组件之间，第一模式的电磁场平行于中心平面，并且第二模式的电磁场垂直于中心平面。 可以提供模式联接螺钉（80,156）以在空腔内的模式之间耦合能量。 空腔的波导部分的波纹减少了低频截止，从而使空腔能够被构造成较小的尺寸以便于它们在卫星通信系统内的安置。
-
公开(公告)号：US5699029A
公开(公告)日：1997-12-16
申请号：US637967
申请日：1996-04-30
CPC分类号： H01P1/208
摘要： A high performance bandpass filter is produced by adding one or more "simultaneous couplings" to a conventional resonant cavity filter. A "simultaneous coupling" is created when a filter's input or output signal, normally coupled to a filter's first or last cavity respectively, is coupled to one or more other cavities. Each simultaneous coupling causes a finite-frequency insertion loss pole to be created, which produces a quasi-elliptic frequency response on its side of the passband. These poles may be placed on the left and/or right sides of the passband, so that both symmetric and asymmetric quasi-elliptic frequency responses are realizable. A diplexer constructed from two such bandpass filters has the extremely sharp selectivity provided by two asymmetric bandpass filters, thus providing a high degree of receive/transmit isolation.
摘要翻译： 通过向常规谐振腔滤波器增加一个或多个“同时耦合”来产生高性能带通滤波器。 当通常耦合到过滤器的第一或最后空腔的过滤器的输入或输出信号耦合到一个或多个其它空腔时，产生“同时耦合”。 每个同时耦合导致产生有限频率插入损耗极，其在通带侧产生准椭圆频率响应。 这些极点可以放置在通带的左侧和/或右侧，使得对称和非对称准椭圆频率响应都可以实现。 由两个这样的带通滤波器构成的双工器具有由两个非对称带通滤波器提供的非常尖锐的选择性，从而提供高度的接收/发射隔离度。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.028 秒)
