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1. 发明公开

EP0131754A3 Dual mode filters 失效
标题翻译：双模滤波器
公开(公告)号：EP0131754A3
公开(公告)日：1986-07-23
申请号：EP84106695
申请日：1984-06-12
申请人： TELETTRA Telefonia Elettronica e Radio S.p.A.
发明人： Brambilla, Enrico
IPC分类号： H01P01/208
CPC分类号： H01P1/2082
摘要： The coupling iris of each of "n" cavities of a dual-mode filter is now obtained in the outskirt of the cross-section wall in the immediate proximity of the longitudinal wall wherein a hole for the insertion of a coupling adjusting screw is recessed.

2. 发明公开

EP0250857A3 Microwave filter 失效
标题翻译：微波滤波器
公开(公告)号：EP0250857A3
公开(公告)日：1988-12-07
申请号：EP87107533
申请日：1987-05-23
申请人： ANT Nachrichtentechnik GmbH
发明人： Rosenberg, Uwe, Dipl.-Ing. , Wolk, Dieter, Dipl.-Ing.
IPC分类号： H01P01/208
CPC分类号： H01P1/2082

3. 发明公开

EP0176966A3 Bandpass filter with dielectric resonators 失效
标题翻译：带电介质谐振器的BANDPASS滤波器
公开(公告)号：EP0176966A3
公开(公告)日：1988-06-22
申请号：EP85112223
申请日：1985-09-26
申请人： NEC CORPORATION
发明人： Mizumura, Motoo c/o NEC Corporation , Sei, Hisasuke c/o NEC Corporation
IPC分类号： H01P01/208
CPC分类号： H01P1/2084
摘要： A bandpass filter in which a plurality of dielectric resonators (14 1 -14 5 ) are arranged in an array is disclosed. Two metallic posts (42. 44) each having a length which is substantially equal to a quarter of the wavelength of the fundamental frequency (center frequency of the bandpass filter) are arranged one between the dielectric resonator (14,) located at one end of the array and an input connector (22) and the other between the dielectric resonator (14 s ) located at the other end of the array and an output connector (24). This suppresses propagation of spurious modes, particularly propagation at a twice higher frequency than the fundamental frequency.

4. 发明公开

EP0104735A3 Electromagnetic filter with multiple resonant cavities 失效
标题翻译：具有多个谐振腔的电磁滤波器
公开(公告)号：EP0104735A3
公开(公告)日：1986-03-12
申请号：EP83304645
申请日：1983-08-11
申请人： Ford Aerospace & Communications Corporation
发明人： Fiedziuszko, Slawomir J.
IPC分类号： H01P01/208
CPC分类号： H01P1/2086
摘要： An electromagnetic cavity filter (10) is formed by at least two cavities (12) having electrically conductive walls (40,15). When more than two cavities (12) are employed, their midpoints do not have to be colinear; rather, it is sufficient that the angle formed by the midpoints of any three successively coupled cavities is an integral multiple of 90°. Thus, a folded "engine block" geometry can be realized such that the filter's input cavity (12) is proximate to the output cavity (12). This allows a canonic filter response. Each cavity (12) is the equivalent to two filter poles because two orthogonal modes of electromagnetic radiation can resonate therewith. Electrically nonadjacent modes of proximate cavities (12), as well as electrically adjacent modes, can be coupled, permitting elliptic filter functions. Electrically nonadjacent modes are coupled by means of an iris (30) opening between the two cavities (12). Electrically adjacent modes are coupled by means of an electrically conductive probe (22) penetrating each of the two cavities (12). A dielectric resonator (20) can be disposed within each cavity (12) to reduce the physical size of the cavity (12) while preserving its electrical characteristics.

5. 发明公开

EP0250858A3 Microwave filter with multiple coupled cavity resonators 失效
标题翻译：具有多个耦合孔谐振器的MICROWAVE滤波器
公开(公告)号：EP0250858A3
公开(公告)日：1988-12-07
申请号：EP87107534
申请日：1987-05-23
申请人： ANT Nachrichtentechnik GmbH
发明人： Rosenberg, Uwe, Dipl.-Ing. , Wolk, Dieter, Dipl.-Ing.
IPC分类号： H01P01/208
CPC分类号： H01P1/208

6. 发明公开

EP0188367A3 Triple mode dielectric loaded bandpass filters 失效
标题翻译：三重模式电介质负载滤波器
公开(公告)号：EP0188367A3
公开(公告)日：1988-07-06
申请号：EP86300203
申请日：1986-01-14
申请人： COM DEV LTD.
发明人： Tang, Wai-Cheung , Siu, David , Beggs, Bruce Cameron , Sferrazza, Joseph
IPC分类号： H01P01/208
CPC分类号： H01P1/2086
摘要： A triple mode dielectric loaded bandpass filter (28) has at least one cavity (30) resonating in three independent orthogonal modes. The triple mode cavity (30) can be mounted adjacent another cavity (32) which may be either a single, dual or triple mode cavity. Any reasonable number of cavities can be used as well as various arrangements of cavities. Inter-cavity coupling is achieved through an iris (34) having two separate apertures (36, 38) that together form a T-shape. The cavities are planar mounted. The fitter (28) is designed for use in the satellite communication industry and results in substantial savings in weight and size when compared to previous filters.

7. 发明公开

EP0197653A3 Microwave bandpass filter including dielectric resonators 失效
标题翻译： MICROWAVE BANDPASS滤波器，包括电介质谐振器
公开(公告)号：EP0197653A3
公开(公告)日：1988-06-22
申请号：EP86301617
申请日：1986-03-06
申请人： NORTHERN TELECOM LIMITED
发明人： Syrett, Barry Albert , Kennard, Paul Alan
IPC分类号： H01P01/208 , H01P01/219
CPC分类号： H01P1/219 , H01P1/2084
摘要： 57 A dielectric resonator microwave bandpass filter includes a printed circuit board (40) supported within a cut-off waveguide (10, 12), with dielectric resonators (44) and coupling loops on an upper surface of the board and a well (42) beneath the board so that the resonators are well spaced from ground planes. Tuning screws (66) beneath the resonators, and coupling adjustment screws above the board adjacent to the coupling loops and between adjacent resonators, provide for adjustments to provide desired filter characteristics within a wide range. Isolators (30) within the waveguide have ports coupled to the resonators via microstrip transmission lines comprising conductive tracks on the board and ports coupled to coaxial connectors (28) in end walls of the waveguide. The waveguide is formed from a cast body (10) and a flat lid (12).

8. 发明申请

WO1996029754A1 DIELECTRIC RESONATOR FILTER 审中-公开
标题翻译：电介质谐振滤波器
公开(公告)号：WO1996029754A1
公开(公告)日：1996-09-26
申请号：PCT/US1996004043
申请日：1996-03-25
申请人： BARTLEY MACHINE & MANUFACTURING COMPANY, INC.
发明人： BARTLEY MACHINE & MANUFACTURING COMPANY, INC. , WENZEL, Robert, J. , ERLINGER, William, G. , MELLING, Peter , BARTLEY, Paul , BARTLEY, Lucy
IPC分类号： H01P01/208
CPC分类号： H01P11/007 , H01P1/2084
摘要： A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanisms provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.
摘要翻译：以磁偶极模式工作的介质谐振滤波器包括设置在多个介质谐振腔中的多个介质谐振器。多个耦合机构在电相邻介质谐振器腔的相应谐振器之间提供一个在线的耦合因子。至少一个交叉耦合器件提供非相邻介质谐振器腔的相应谐振器之间的交叉耦合。在线耦合因子和交叉耦合因子的幅度和符号提供介质谐振滤波器，为此可以提供期望的幅度和相位响应。

9. 发明申请

WO1995001658A1 TUNABLE RESONATOR FOR MICROWAVE OSCILLATORS AND FILTERS 审中-公开
标题翻译：微波振荡器和滤波器的谐振器
公开(公告)号：WO1995001658A1
公开(公告)日：1995-01-12
申请号：PCT/EP1994002154
申请日：1994-07-01
申请人： SIEMENS TELECOMUNICAZIONI S.P.A. , DE MARON, Lino , URCIUOLI, Riccardo
发明人： SIEMENS TELECOMUNICAZIONI S.P.A.
IPC分类号： H01P01/208
CPC分类号： H01P1/2084
摘要： Tunable resonator consisting of a cylindrical cavity containing a cylindrical dielectric resonator (DR) connected to a metal tuning screw by means of a cylindrical dielectric spacer placed between the screw and the DR and connected rigidly to the latter. The tuning screw penetrates into a hole made in axial direction in the upper wall of the cavity. Said wall exhibits on the edge of the hole a toroidal extension toward the interior of the cavity. As concerns tuning, starting from a condition in which resonance frequency fr of the resonator is minimal, i.e. when the DR is at the centre of the cavity, a rotation of the metal tuning screw which results in approach of the DR to the toroidal extension produces a significant increase in fr. There are also described microwave filters comprising multiple resonators which are the object of the present invention coupled together by means of irises.
摘要翻译：可调谐谐振器由包含圆柱形介质谐振器（DR）的圆柱形腔体组成，圆柱形介质谐振器（DR）通过设置在螺钉和DR之间的圆柱形电介质间隔件连接到金属调谐螺钉，并刚性连接到后者。调谐螺丝穿入在腔的上壁中沿轴向形成的孔中。所述壁在孔的边缘上呈现朝向空腔内部的环形延伸。关于调谐，从谐振器的谐振频率fr最小的条件开始，即当DR位于空腔的中心时，金属调谐螺钉的旋转导致DR接近环形延伸部，从而产生大幅度增加。还描述了包括多个谐振器的微波滤波器，这些谐振器是通过虹膜耦合在一起的本发明的目的。

10. 发明申请

WO1988001794A1 DUAL MODE WAVEGUIDE FILTER EMPLOYING COUPLING ELEMENT FOR ASYMMETRIC RESPONSE 审中-公开
标题翻译：采用不对称响应的双模式波形滤波器
公开(公告)号：WO1988001794A1
公开(公告)日：1988-03-10
申请号：PCT/US1987001858
申请日：1987-07-31
申请人： HUGHES AIRCRAFT COMPANY
发明人： HUGHES AIRCRAFT COMPANY , SCHWARTZ, Craig , HENDRICK, Louis , ELLIOTT, Joseph
IPC分类号： H01P01/208
CPC分类号： H01P1/2082
摘要： A dual mode circular-type waveguide filter (10) has a cylindrical waveguide body (12) separated by septums (16, 18) into a plurality of resonant waveguide cavities (22, 24, 26). Mutually orthogonal electromagnetic fields (37, 81) in adjacent cavities (24, 26) are electromagnetically coupled with each other by an internal coupling element (60) which is mounted on one of the septums (18) and extends into the adjacent cavities. The coupling element comprises an elongate, conductive wire which includes a first portion (62) extending into one of the cavities and forming a magnetic loop, and a second portion (64) extending into the adjacent cavity and forming an electric probe. The coupling element provides an asymmetrical stopband pole (72a) in the frequency response (70) of the filter.

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