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    • 1. 发明申请
    • HYBRID NOTCH FILTER
    • 混合过滤器
    • WO1995015018A1
    • 1995-06-01
    • PCT/GB1994002582
    • 1994-11-24
    • FILTRONIC COMTEK PLCRHODES, John, DavidSLEIGH, Philip, David
    • FILTRONIC COMTEK PLC
    • H01P01/20
    • H01P1/20
    • A hybrid notch filter comprises an impedance inverter network connected across a two port filter network. In its simplest form, the impedance inverter network comprises impedance inverters of substantially 2ROOT 2 characteristic admittance connected between the input and output ports across which the two port filter network is connected, and impedance inverters of substantially unity characteristic admittance interconnecting the 2ROOT 2 characteristic admittance impedance inverters at their respective ends. The two port filter network may be a plurality of serially connected resonators and is connected across the output ports of the impedance inverter network. The hybrid notch filter may be formed into a switched hybrid notch filter by providing a switch between an adjacent pair of resonators in the filter network.
    • 混合陷波滤波器包括跨两端滤波器网络连接的阻抗逆变器网络。 阻抗逆变器网络以其最简单的形式包括连接在两端口滤波器网络所连接的输入和输出端口之间的基本上2ROOT 2特性导纳的阻抗逆变器,以及将2ROOT 2特性导纳阻抗互连的基本上单位特性导纳的阻抗变换器 逆变器在其各自的端部。 双端口滤波器网络可以是多个串联连接的谐振器,并且跨越阻抗逆变器网络的输出端口连接。 混合陷波滤波器可以通过在滤波器网络中的相邻谐振器对之间提供开关来形成开关混合陷波滤波器。
    • 2. 发明申请
    • ODD ORDER MESFET FREQUENCY MULTIPLIER
    • ODD订购MESFET频率乘法器
    • WO1997041613A1
    • 1997-11-06
    • PCT/US1997007224
    • 1997-04-29
    • RAYTHEON E-SYSTEMS, INC.
    • RAYTHEON E-SYSTEMS, INC.VON STEIN, Ofria, M.
    • H01P01/20
    • H03B19/14
    • An odd order MESFET frequency multiplier which outputs a desired odd harmonic of a fundamental tone. The frequency multiplier (100) includes a multiplier stage with a MESFET (16) having a harmonic response dependent upon a plurality of bias conditions (24, 26) and the input power level (28). The MESFET (16) includes a drain port (32) coupled to an output matching network (30) sized and configured for a predetermined load (27) at a selected output frequency. The output matching network (30) includes RF shorts (40, 42) for reflecting energy to the MESFET (16) from a plurality of undesired even harmonics. Coupled to the output matching circuit (30) is a bandpass filter (36) sized and configured for the predetermined load (27). The bandpass filter (36) includes RF shorts for reflecting energy to the MESFET (16) from a plurality of undesired odd harmonics, wherein the reflected energy from the undesired even harmonics and the undesired odd harmonics are combined at the MESFET (16) to provide additional energy at the desired odd harmonic.
    • 奇数阶MESFET倍频器,输出基音的期望奇次谐波。 倍频器(100)包括具有MESFET(16)的乘法器级,其具有取决于多个偏置条件(24,26)和输入功率电平(28)的谐波响应。 MESFET(16)包括连接到输出匹配网络(30)的排出端口(32),该输出匹配网络(30)以所选择的输出频率对预定负载(27)进行尺寸和配置。 输出匹配网络(30)包括用于从多个不期望的偶次谐波向MESFET(16)反射能量的RF短路(40,42)。 耦合到输出匹配电路(30)的是带通滤波器(36),其尺寸和构造用于预定负载(27)。 带通滤波器(36)包括用于从多个不期望的奇次谐波向MESFET(16)反射能量的RF短路,其中来自不需要的偶次谐波的反射能量和不期望的奇次谐波在MESFET(16)处组合以提供 在所需的奇次谐波处增加能量。
    • 3. 发明申请
    • DIELECTRIC RESONATOR LOADED CAVITY FILTER COUPLING MECHANISMS
    • 电介质谐振器负载腔滤波器耦合机制
    • WO1997031402A1
    • 1997-08-28
    • PCT/US1997001830
    • 1997-02-03
    • ALLEN TELECOM GROUP, INC.LIANG, Xiao-PengNUGENT, Jennifer, C.
    • ALLEN TELECOM GROUP, INC.
    • H01P01/20
    • H01P1/2084
    • A dielectric resonator loaded cavity filter (100) comprises a housing (101) having an exterior (102) and an interior (103), the housing interior (103) including at least two adjacent cavities (104) having dielectric resonators (112) mounted therein. A transverse partition (105) having a coupling window (106) separates the adjacent cavities (104). The coupling window (106) includes opposing sidewalls (107, 108). A conductive material coupling adjusting screw (109) extends from the housing exterior (102) and penetrates a first sidewall (107) and is adjustable from the housing exterior (102) to extend from the first sidewall (107) to the opposing second sidewall (108). Alternative embodiments include a coupling disk (503 in figs. 4, 5) being interposed between opposing sidewalls (504, 505) of the transverse partition (105), and a coupling strip (701 in figs. 6, 7) extending from a shoulder portion (704) of a second opposing sidewall (707).
    • 介质谐振器加载的空腔滤波器(100)包括具有外部(102)和内部(103)的壳体(101),所述壳体内部(103)包括至少两个相邻的空腔(104),所述相邻空腔(104)安装有介电谐振器 在其中。 具有联接窗口(106)的横向隔板(105)分隔相邻的空腔(104)。 联接窗口(106)包括相对的侧壁(107,108)。 导电材料联接调节螺钉(109)从壳体外部(102)延伸并且穿过第一侧壁(107)并且可从壳体外部(102)调节以从第一侧壁(107)延伸到相对的第二侧壁 108)。 替代实施例包括插入在横向分隔件(105)的相对侧壁(504,505)之间的耦合盘(图4,5中的503)和从肩部延伸的连接条(图6,7中的701) 第二相对侧壁(707)的部分(704)。
    • 4. 发明申请
    • DUAL TM-MODE DIELECTRIC RESONATOR APPARATUS EQUIPPED WITH WINDOW FOR ELECTROMAGNETIC FIELD COUPLING, AND BAND-PASS FILTER APPARATUS EQUIPPED WITH THE DIELECTRIC RESONATOR APPARATUS
    • 配备有用于电磁场耦合的窗口的双TM型电介质谐振器装置和配备有介质谐振器装置的带通滤波器装置
    • WO1995020248A1
    • 1995-07-27
    • PCT/JP1995000067
    • 1995-01-24
    • MURATA MANUFACTURING CO., LTD.ANDO, MasamichiABE, Shuichi
    • MURATA MANUFACTURING CO., LTD.
    • H01P01/20
    • H01P1/2086H01P7/10Y10T29/49016
    • A dual TM-mode dielectric resonator apparatus comprises a dual TM-mode dielectric resonator consisting of two columnar TM-mode dielectric resonators (1) crossed inside a cavity (2); and a partition (3) of a window for electromagnetic coupling between an external apparatus and the dielectric resonator. The partition (3) is disposed on the side surface of the cavity (2) opposing the external apparatus and constituted by forming a first shield conductor (30a) on a first main plane (S1) of a dielectric sheet (50) and a second shield conductor (30b) on a second main plane (S2). The first shield conductor (30a) includes parallel slits (32) formed in parallel with the longitudinal direction of one of the TM mode dielectric resonators, while the second shield conductor (30b) includes slits (31) formed in a region substantially opposed to the first slits (32). Further, a plurality of such dual TM-mode dielectric resonator apparatuses described above are combined to form a bandpass filter. Accordingly, the degree of electromagnetic field coupling can be adjusted easily and precisely by adjusting the width of the first slits (31).
    • 双TM模介质谐振器装置包括由在腔(2)内交叉的两个柱状TM模介质谐振器(1)组成的双TM模介质谐振器。 以及外部设备和介质谐振器之间用于电磁耦合的窗口的隔板(3)。 分隔件(3)设置在与外部设备相对的空腔(2)的侧表面上,并且通过在电介质片(50)的第一主平面(S1)上形成第一屏蔽导体(30a)和第二屏蔽导体 屏蔽导体(30b)在第二主平面(S2)上。 第一屏蔽导体(30a)包括与TM模介质谐振器之一的纵向方向平行形成的平行狭缝(32),而第二屏蔽导体(30b)包括狭缝(31),该狭缝(31)形成在与 第一狭缝(32)。 此外,将上述多个这样的双TM模介质谐振器装置组合以形成带通滤波器。 因此,通过调整第一狭缝(31)的宽度,可以容易且精确地调整电磁场耦合度。
    • 5. 发明申请
    • HELICAL RESONATOR FILTER
    • 螺旋谐振滤波器
    • WO1982003499A1
    • 1982-10-14
    • PCT/US1982000183
    • 1982-02-22
    • MOTOROLA INC
    • MOTOROLA INCPOPOVSKI GEORGE NICOLASVIZMUELLER PETER
    • H01P01/20
    • H01P7/005
    • The present invention, by the use of a conductive coupling unit, increases the bandwidth beyond the maximum bandwidth afforded by a conventional helical resonator filter, without increasing its given physical size. The helical resonator filter (Figs. 1, 2 and 3) comprising two or more helical coils (16, 17) is provided with the conductive coupling element (12, 33) between the helical coils for modifying the filter bandwidth. The coupling element (12, 33) is a conductor and is positioned in the maximum of the electrical field at the open end (Fig. 1) of the helical coils or at the maximum of the magnetic field at the grounded end (Fig. 3) of the coils, for creating a controlled change incapacitive (electrical) or inductive (magnetic) coupling, respectively. A block (61 in Fig. 4) of suitable dielectric with grooves (62) for receiving the coupling element (12) and the ribs (81, 83 in Fig. 6) on the inside of a conductive cover (84) can be used to center the coupling element (12) and the whole filter assembly structure when the cover (84) is put in place (Fig. 5) and clamps the block (61) securely to the base of the filter. Additional coupling elements (12 or 33) can be used in a similar manner as above when additional helical coils (16, 17) are used in a filter.
    • 本发明通过使用导电耦合单元将带宽增加超过常规螺旋谐振器滤波器提供的最大带宽,而不增加其给定的物理尺寸。 包括两个或更多个螺旋线圈(16,17)的螺旋谐振器滤波器(图1,2和3)在螺旋线圈之间设置有用于修改滤波器带宽的导电耦合元件(12,33)。 耦合元件(12,33)是导体,并且位于螺旋线圈的开放端(图1)处的电场的最大值,或位于接地端处的磁场的最大值(图3 ),用于分别产生受控制的变化(电)或电感(磁)耦合。 可以使用具有用于接纳耦合元件(12)的槽(62)和导电盖(84)内部的肋(图8中的81,83)的合适电介质的块(图4中的61) 当盖(84)放置就位(图5)并将块(61)牢固地夹紧到过滤器的底部时,使联接元件(12)和整个过滤器组件结构居中。 当在过滤器中使用附加的螺旋线圈(16,17)时,附加的耦合元件(12或33)可以以与上述类似的方式使用。
    • 6. 发明申请
    • CERAMIC WAVEGUIDE FILTER WITH STACKED RESONATORS
    • 陶瓷波导滤波器与堆叠式谐振器
    • WO1997032354A1
    • 1997-09-04
    • PCT/US1997000164
    • 1997-01-03
    • MOTOROLA INC.
    • MOTOROLA INC.VANGALA, Reddy, R.
    • H01P01/20
    • H01P1/208
    • A high frequency ceramic waveguide bandpass filter (100) having: two or more waveguide resonators (102, 104, 106) stacked vertically, each adjacent waveguide resonator is coupled with a shunt capacitance, and includes: a plate of dielectric material having a top planar surface (108), a bottom planar surface (110), and four side surfaces (112, 114, 116 and 118); metallized receptacles (120 and 122) on the top planar surface (108) and the bottom planar surface (110), respectively, the metallized receptacles (120, 122) defining capacitive probes; a metallization layer on substantially all the surfaces of the resonators (102, 104, 106) with the exception of an unmetallized area (124, 126) surrounding the capacitive probes; and the resonators (102, 104, 106) having a conductive interface adapted to electrically connect to an adjacent resonator.
    • 一种高频陶瓷波导带通滤波器(100),其具有:垂直堆叠的两个或更多个波导谐振器(102,104,106),每个相邻的波导谐振器与分流电容耦合,并且包括:介电材料板,具有顶部平面 表面(108),底部平坦表面(110)和四个侧表面(112,114,116和118); 分别在顶部平坦表面(108)和底部平坦表面(110)上的金属化插座(120和122),金属化插座(120,122)限定电容式探针; 除了围绕电容探针的非金属化区域(124,126)之外的在谐振器(102,104,106)的基本上所有表面上的金属化层; 并且具有适于电连接到相邻谐振器的导电接口的谐振器(102,104,106)。
    • 8. 发明申请
    • MICROWAVE FILTER FABRICATION METHOD AND FILTERS THEREFROM
    • 微波过滤器制造方法及其过滤器
    • WO1992022101A1
    • 1992-12-10
    • PCT/US1992004510
    • 1992-05-29
    • CALIFORNIA AMPLIFIER
    • CALIFORNIA AMPLIFIERWEST, Laurice, J.RAVMOND, Joel, J.
    • H01P01/20
    • H01P1/205H01P11/007
    • A microwave filter (30) and method of fabrication is provided in which an integral housing (22) defining a cavity (23) is formed from a blank (20) cut from a conductive sheet. The blank is bent to form the housing. The resultant housing includes resonators, resonator taps, tuning holes and tap apertures. Capacitance tabs and coupling tabs are added to the housing for tuning of the filter. The tabs are adjusted by access through the tuning holes in the blank. The blank further defines stops which align the taps with lines of a microstrip circuit when the filter is installed therein and grounding tabs for grounding to the microstrip ground plane. The filter may be in comblike or interdigital configuration.
    • 提供一种微波过滤器(30)及其制造方法,其中,从由导电片切割的坯件(20)形成限定空腔(23)的一体式壳体(22)。 坯料弯曲形成外壳。 所得壳体包括谐振器,谐振器抽头,调谐孔和抽头孔。 将电容接头和联接接头添加到外壳中,以调谐过滤器。 通过通过空白中的调谐孔进行访问来调整凸片。 当过滤器安装在其中时,空白进一步定义了将抽头与微带电路的线对准的止动件,以及用于接地到微带接地平面的接地片。 过滤器可以是梳状或叉指配置。