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公开(公告)号：US12040524B2
公开(公告)日：2024-07-16
申请号：US17706080
申请日：2022-03-28
发明人： Kimmo Kalervo Karhu
CPC分类号： H01P1/208 , H01P1/2053 , H01P1/207
摘要： An apparatus comprising: at least one cavity filter element wherein the cavity filter element comprises a first support, a second support distinct from the first support, and a coupling element supported by the first support and the second support. In some examples, there is a series of cavity filter elements. In some examples, the cavity filter element(s) are part of a cavity filter.
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公开(公告)号：US12040523B2
公开(公告)日：2024-07-16
申请号：US17600848
申请日：2020-04-03
发明人： Shouli Jia , Lipeng Nie , Yunpeng Bai , Hongjun Zhao
摘要： Example embodiments of the present disclosure provide a resonator (100) and a filter (500). The resonator (100) comprises a capacitance metal sheet (110), an inductance metal sheet (120) and a mounting metal sheet (130). The capacitance metal sheet (110) is configured to generate capacitance of the resonator (100) with a top surface (202) of a metal cavity (200) for housing the resonator (100). The inductance metal sheet (120) is configured to generate inductance of the resonator (100), which is connected to the capacitance metal sheet (110) and extends to a bottom surface (204) of the metal cavity (200). The mounting metal sheet (130) is connected to the inductance metal sheet (120) and configured to mount the resonator (100) in the metal cavity (200). The example embodiments of the present disclosure can implement a resonator and a filter with high performance, small size and low cost.
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公开(公告)号：US20240213641A1
公开(公告)日：2024-06-27
申请号：US18380903
申请日：2023-10-17
发明人： Fanghai XU
摘要： A multi-mode cavity filter includes: a metal cavity formed into a hollow shape; and a plurality of resonators supported in suspension within the metal cavity and not contacting with an inner wall of the metal cavity. The plurality of resonators includes: a first resonator configured to generate a first resonant frequency; and a second resonator electrically connected to the first resonator and configured to generate a second resonant frequency. The second resonator includes a plurality of resonance plates. A first number of the second resonant frequency is associated with a second number of the plurality of resonance plates.
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4.发明公开公开(公告)号：US20240030575A1
公开(公告)日：2024-01-25
申请号：US18478858
申请日：2023-09-29
IPC分类号： H01P1/213 , H01P1/207 , H01P3/12 , H04W88/08 , H05K1/11 , H05K1/18 , H05K3/34 , H01P1/208 , H01P11/00
CPC分类号： H01P1/2138 , H01P1/207 , H01P3/121 , H04W88/08 , H05K1/115 , H05K1/18 , H05K3/3494 , H01P1/2088 , H01P11/007 , H05K2201/09985 , H05K2201/015 , H05K2201/037 , H05K2201/09609
摘要： System, apparatuses and methods are disclosed which relate to the use of substrate integrated waveguide technology in front-end modules. An example circuit card assembly for use as a cellular base station front-end is disclosed which includes at least one component printed circuit board (PCB) layer having front-end module hardware components and at least one filter PCB layer including at least one substrate integrated waveguide (SIW) filter.
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5.发明授权公开(公告)号：US11837789B2
公开(公告)日：2023-12-05
申请号：US17599144
申请日：2020-04-10
发明人： Martin Da Silveira , Neil McGowan , Andrew McNair , Weigang Zeng , Chunyun Jian , Martin Ethier , Francis Marion , Zhen Hong Wang
CPC分类号： H01Q21/061 , H01P1/207 , H01P1/213 , H01P7/06 , H01Q1/246 , H01Q1/523 , H01Q1/526 , H01Q3/267
摘要： According to one aspect, an integrated antenna and filter unit, IAFU, is provided. The IAFU includes a filter portion including at least one filter configured to filter RF signals to generate filtered RF signals and a plurality of filter pins configured to output filtered RF signals, and an antenna portion securable to the filter portion where the antenna portion includes a PCB including a plurality of conductor traces each mateable with a corresponding one of the plurality of filter pins to electrically couple the plurality of filter pins directly to corresponding ones of the plurality of conductor traces on the PCB, and a plurality of antennas securable to the PCB where the plurality of antennas are electrically coupled to the plurality of conductor traces.
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公开(公告)号：US20230344102A1
公开(公告)日：2023-10-26
申请号：US18341974
申请日：2023-06-27
发明人： Junfeng LU , Xinming LIU , Yuan ZHANG , Shuangfei WANG
摘要： A signal transceiver apparatus includes a base having a first cavity and a second cavity. A first interface and a first filter circuit are in the first cavity. The first filter circuit is connected to the first interface. The first filter circuit is configured to transmit a signal of a first frequency band. A second interface, a third interface, and a second filter circuit are in the second cavity. The second filter circuit is connected to the second interface. The second filter circuit is configured to transmit a signal of a second frequency band. A connecting component includes a first end in the first cavity connected to the first filter circuit, a third end in the second cavity connected to the second filter circuit, and a second end connected to the third interface. The connecting component is configured to transmit signals of the first and the second frequency bands.
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公开(公告)号：US11764451B2
公开(公告)日：2023-09-19
申请号：US17152800
申请日：2021-01-20
发明人： Jenn-Hwan Tarng , Nai-Chen Liu , Yin-Kai Lin , Tsung-Han Lee , Chao-Wei Chang
摘要： A waveguide structure includes a dielectric layer, a plurality of circuit layers, a plurality of insulation layers, and a conductor connection layer. The dielectric layer has an opening. The circuit layers are disposed on the dielectric layer. The insulation layers and the circuit layers are alternately stacked. The conductor connection layer covers an outer wall of the opening in a direction perpendicular to the circuit layers and connects at least two circuit layers on two opposite sides of the opening. At least the conductor connection layer and a part of the circuit layers define an air cavity for transmitting signals at a position corresponding to the opening.
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公开(公告)号：US20230282953A1
公开(公告)日：2023-09-07
申请号：US18174965
申请日：2023-02-27
申请人： TDK CORPORATION
摘要： A filter device includes a ground conductor layer, at least one through hole electrically connected to the ground conductor layer, a first resonator conductor layer and a second resonator conductor layer arranged to sandwich the at least one through hole, and a stack. The first resonator conductor layer extends in a first direction becoming away from the at least one through hole, i.e., the −X direction. The second resonator conductor layer extends in a second direction becoming away from the at least one through hole, i.e., the X direction.
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公开(公告)号：US20190238109A1
公开(公告)日：2019-08-01
申请号：US16373025
申请日：2019-04-02
发明人： Matthew A. Morgan
CPC分类号： H03H7/06 , H01F38/14 , H01F2038/143 , H01P1/201 , H01P1/207 , H03H7/38 , H03H7/42 , H03H7/46
摘要： Reflectionless low-pass, high-pass, band-pass, band-stop, all-pass, all-stop, and multi-band filters, as well as a method for designing such filters is disclosed, along with a method of enhancing the performance of such filters through the use of unmatched sub-networks to realize an optimal frequency response, such as the Chebyshev equal-ripple response. These filters preferably function by absorbing the stop-band portion of the spectrum rather than reflecting it back to the source, which has significant advantages in many different applications. The unmatched sub-networks preferably offer additional degrees of freedom by which element values can be assigned to realize improved cutoff sharpness, stop-band rejection, or other measures of performance.
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10.发明申请公开(公告)号：US20190057945A1
公开(公告)日：2019-02-21
申请号：US16071693
申请日：2017-01-18
CPC分类号： H01L23/66 , H01L2223/6633 , H01L2223/6683 , H01P1/207 , H01P3/121 , H01P3/123 , H01P5/024 , H01P11/002 , H01Q1/2283 , H01Q13/02 , H01Q13/10
摘要： The present invention relates to a transition arrangement (100) comprising a transition between a substrate integrated waveguide, SIW, (20) of a circuit arrangement and a waveguide and/or antenna structure (10). It comprises a first conducting plate (1) and a second conducting plate (2). The SIW (20) is arranged on said first conducting plate, and an impedance matching structure (4) is connected to the second conducting plate. For a transition between the SIW (20) and the waveguide structure, the impedance matching structure (4) is extended with an open circuit λg/4 stub (5) for inverting the impedance to effectively provide a short-circuit connection, thereby electromagnetically coupling the EM-field between the SIW and the impedance matching structure (4), which is so arranged that, when the first and second conducting plates are interconnected, or merely assembled in a contactless manner in the case of gap structures, the open circuit λg/4 stub (5) is disposed above the SIW without any galvanic contact between the SIW and the impedance matching structure (4) and between the SIW (20) and the λg/4 stub (5), providing a planar, contactless transition.
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