WO2013044743A1 - 通信腔体器件及其椭圆函数型低通滤波通路 - Google Patents
通信腔体器件及其椭圆函数型低通滤波通路 Download PDFInfo
- Publication number
- WO2013044743A1 WO2013044743A1 PCT/CN2012/081598 CN2012081598W WO2013044743A1 WO 2013044743 A1 WO2013044743 A1 WO 2013044743A1 CN 2012081598 W CN2012081598 W CN 2012081598W WO 2013044743 A1 WO2013044743 A1 WO 2013044743A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pass filter
- fixed
- filter path
- type low
- function type
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/202—Coaxial filters
Definitions
- the invention relates to a communication cavity device for low-pass filtering a communication signal, in particular to an elliptic function type low-pass filter path.
- the market has proposed the combination of cable TV systems, video on demand systems, mobile communication systems, and WLAN systems. Because of the high isolation between the above systems, a high-performance low-pass filter is needed to implement the path of the cable television system and the video on demand system, and at the same time, it needs to have higher systems for mobile communication systems and WLANs. Degree of inhibition. Due to the limitation of its implementation, the traditional low-pass filter has low transition bandwidth and low out-of-band rejection, which cannot meet the market requirements, and needs to introduce a new implementation.
- the patent application CN201110247335.X filed on August 24, 2011 discloses an elliptical function low-pass filter path and a communication cavity device using the same, which adopts a unique structure of a conductor bar traversing a cavity, and can be in a transition zone. A higher out-of-band rejection is achieved in a wider case.
- it is not perfect. For example, with a passband of 0-1600MHz, the insertion loss is expected to be below 1.0dB, and the out-of-band rejection of the 1710-2700MHz band is expected to be above 40dB. It can be seen that the transition between the two bands is very narrow, relative The bandwidth is only 6.6%, but the insertion loss is small and the out-of-band rejection is high. To achieve these indicators, whether theoretical or actual, the aforementioned patents cannot meet this requirement.
- the primary object of the present invention is to overcome the above-mentioned deficiencies and to provide an elliptic function type low-pass filter path with unique structure, excellent electrical performance and satisfying the application of three-network fusion.
- Another object of the present invention is to provide a communication cavity device such as a combiner/duplexer/filter including the elliptic function type low pass filter path.
- the present invention adopts the following technical solutions:
- the elliptical function type low-pass filter path of the present invention comprises a phase-covered cavity and a cover plate, wherein the cavity is provided with a longitudinal cavity, and a connection port is formed on each side of the longitudinal direction of the cavity, the cavity A conductor bar for electrically connecting the two connection ports is disposed, and a fixed tuning disk electrically connected to the conductor bar is disposed above the conductor bar along the longitudinal direction of the conductor bar, corresponding to each fixed
- the tuning disks are each provided with an active tuning disk, each movable tuning disk being associated with a corresponding tuning screw passing through the cover plate, the fixed tuning disk and the active tuning disk being non-contacting for capacitive coupling.
- At least one of the fixed tuning disks is fixed on a dielectric plate and maintained in a relative position relationship with the conductor bar through a dielectric plate, and the fixed tuning disk is printed on the dielectric plate.
- a microstrip line electrically connected to a conductor bar.
- a fixed tuning disk corresponding to the conductor bar is fixed to the conductor bar, and the conductor bar is formed with a receiving portion for positioning and fixing the dielectric plate for the dielectric plate.
- the dielectric plate is connected to the receiving portion in two or similar ways:
- the bottom of the dielectric plate is provided with a channel, and a groove is defined on the receiving portion of the conductor bar, and the dielectric plate is matched with the groove of the receiving portion to achieve stable connection and positioning, and the medium plate is printed.
- One end of the microstrip line is electrically connected to the fixed tuning disk, and the other end is electrically connected to the receiving portion.
- the groove is disposed circumferentially around the conductor bar.
- a channel is arranged at the bottom of the dielectric plate, and a hole is defined in the receiving portion of the conductor bar, one end of the column member is welded to the channel of the dielectric plate, and the other end is matched with the hole of the receiving portion to achieve stability.
- the connection is positioned, and one end of the microstrip line printed on the medium plate is electrically connected to the fixed tuning disk, and the other end is electrically connected to the receiving portion through the column member.
- the hole position is a screw hole, and one end of the column member and the hole position is a stud.
- all of the fixed tuning disks maintain a relative positional relationship with the conductor bars in the same configuration.
- At least one of the fixed tuning disks is fixed on a cylindrical rod and maintained in a relative positional relationship and an electrical connection with the conductor bar through the cylindrical rod.
- a fixed tuning disk corresponding to the conductor bar is connected to the conductor bar, and the conductor bar is formed with a receiving portion for providing positioning and fixing the cylindrical rod for the cylindrical rod.
- the receiving portion defines a hole position, and one end of the cylindrical rod is fixed to the fixed tuning disk, and the other end cooperates with the hole position of the receiving portion to achieve stable connection positioning.
- the hole position is a screw hole, and one end of the columnar rod and the hole position is a stud.
- the fixed tuning disk is integrally formed with the cylindrical rod.
- all of the fixed tuning disks maintain the relative positional relationship with the conductor bars in the same structure.
- the above two embodiments may be used interchangeably.
- the above structure including the dielectric plate and the above structure including the columnar rod are simultaneously disposed in the same low-pass filter path, and wherein the dielectric plate is
- the combination with the receiving portion of the conductor bar can also flexibly adopt the various methods disclosed above.
- the communication cavity device such as the combiner/duplexer/filter of the present invention includes the above elliptic function low-pass filter path.
- the present invention has the following advantages:
- the elliptic function low-pass filter path of the present invention is based on a conventional sugar-gourd-shaped low-pass filter, and the low-impedance portion is replaced by a harmonic oscillator in series with an equivalent inductor-capacitor.
- the equivalent inductance of the resonator is realized by a microstrip line printed on the dielectric board or a cylindrical rod of a fixed tuning disk.
- the equivalent capacitance is realized by the gap coupling between the fixed tuning disk and the active tuning disk.
- the elliptic function low-pass filter path of the invention has the advantages of narrow transition band, small insertion loss, small standing wave ratio, high near-end out-of-band rejection, wide suppression band, and the like, thereby satisfying a narrow transition band and low insertion loss.
- Application scenarios with high suppression requirements In the two measured frequency bands of the transition band with a relative bandwidth of only 6.6% between 0-1600MHz and 1710-2700MHz, the insertion loss can be controlled below 1.0dB, and the out-of-band rejection can reach 40dB or more.
- the elliptical function type low-pass filter path of the invention has simple and compact components, is easy to process, and has low precision for processing and assembly, and is suitable for mass production.
- FIG. 1 is a schematic view showing the assembled structure of a preferred embodiment of the elliptic function type low pass filtering path of the present invention
- FIG. 2 is a schematic view showing an assembly relationship between a dielectric plate and its peripheral components according to the present invention
- Figure 3 is a schematic view showing the structure of the cover body of the present invention opposite to the cover body of Figure 1;
- FIG. 4 is a schematic view showing the assembly structure of another embodiment of the elliptic function type low-pass filter path of the present invention, wherein the cover body is omitted;
- Fig. 5 is a schematic view showing another assembly relationship between the dielectric plate of the present invention and its peripheral components.
- the low-pass filter path is formed in a metal cavity 11 and mainly includes a longitudinal shape formed in the metal cavity 11 .
- a long cavity 10 two connection ports 112, 114 located on both sides of the cavity 10 in the longitudinal direction and fixed on the cavity wall of the metal cavity 11, and a conductor bar 2, two of the conductor bars 2
- the terminals are directly connected to the inner conductors (not shown) of the two connection ports 112, 114, respectively, to effect transmission of signals between the two connection ports 112, 114.
- a cover 12 is further disposed above the cavity 10 of the metal cavity 11, and the cover 12 is screwed and fixed to the cavity 11.
- the conductor bar 2 includes a body 21 having a small diameter and a plurality of receiving portions 223 and 224 having a relatively large diameter, and each of the receiving portions 223 and 224 is disposed at a certain distance.
- the receiving portions 223 and 224 are divided into two types, and the two types of receiving portions 223 and 224 are respectively used for mounting and fixing the tuning disk 3 in different structures. The following describes the two types of receiving parts 223, 224:
- the first receiving portion 223 is provided with a groove 220 disposed circumferentially around the conductor bar 2, and the groove 220 divides the receiving portion 223 itself into two axially opposite portions, thereby the two portions and the groove 220
- the mating relationship can be used to directly clamp the dielectric sheet 4 of the present invention.
- the second receiving portion 224 is provided with a hole 228 disposed deep in the radial direction of the conductor bar 2, the hole 228 being a screw hole for facilitating cooperation with the threaded component, and the present invention is disposed above the components Fix the tuning disk 3.
- a dielectric plate 4 as shown in FIG. 2 is disposed, the top of the dielectric plate 4 is welded and fixed to a fixed tuning disk 3, and the bottom of the dielectric plate 4 is provided with a longitudinal channel. 40, the end of the stroke of the channel 40 is semi-circular, whereby the dielectric plate 4 can be fitted with the first type of receiving portion 223, the circumferential wall of the channel 40 of the dielectric plate 4 and the groove of the receiving portion 223
- the 220 is tightly fitted to achieve a fixed mounting between the dielectric plate 4 and the conductor bars 2 to maintain a fixed relative positional relationship with each other.
- the dielectric board 4 is printed with a microstrip line 8 for the fixed tuning disk 3 and the receiving portion 223 (i.e., connected to the conductor bar 2), and the first of the dielectric plate 4 and the fixed tuning disk 3 and the conductor bar 2 When the receiving portions 223 are fixed, the microstrip lines 8 can function as equivalent inductances.
- a cylindrical rod 5 is provided, and one end of the cylindrical rod 5, that is, the bottom end thereof is designed as a stud 58, and the screw hole of the stud 58 and the second receiving portion 224 (ie, the hole position 228) is phase-locked, and the other end of the cylindrical rod 5, that is, the tip end thereof, is welded (or integrally formed) to a fixed tuning disk 3. Therefore, structurally, the fixed tuning disk 3 forms a fixed relative positional relationship with the conductor bar 2 through the positioning relationship of the cylindrical rod 5, and electrically, the fixed tuning disk 3 is also realized by the cylindrical rod 5. An electrical connection relationship with the conductor bar 2 (through the receiving portion 224).
- the cylindrical rod 5 here functions as an equivalent inductance.
- the height of the fixed tuning disk 3 at the top of the cylindrical rod 5 in the cavity 10 can be adjusted, thereby being compatible with the movable tuning disk 9 of the present invention. Tuning becomes a preparatory tuning tool.
- Each of the active tuning disks 9 is mounted in cooperation therewith, and capacitive coupling is achieved by reserving a gap between the fixed tuning disk 3 and the active tuning disk 9 to achieve an equivalent capacitance effect.
- a plurality of fixed tuning disks 3 corresponding to the cavity 10 are disposed on the cover body 12, and a plurality of corresponding screw holes are provided, and each screw hole corresponds to A tuning screw 120 is provided.
- One end of the tuning screw 120 is a nut exposed to the entire cavity 11, and the other end is provided with a cavity 10 deep into the cavity 11 to form a capacitive coupling with a fixed tuning disk 3 corresponding to a position.
- the movable tuning disk 9 can achieve the tuning effect of the low-pass filter path of the present invention by adjusting the position of the screw between any one of the tuning screw 120 and the screw hole of the cover 12.
- a fixed tuning disk 3 and a movable tuning disk 9 are formed which are mutually capacitively coupled, and have a radial area equal to each other and which coincide in the vertical direction but are never in contact with each other in order to achieve an optimum coupling effect.
- the fixed positional relationship and the electrical connection relationship between the fixed tuning discs 3 and the conductor bars 2 are realized by two structures, one of which is by means of the dielectric plate 4
- the matching positioning and the fixed clamping relationship with the first type of receiving portion 223 are realized, and the other is the positioning and fixing screw between the studs 58 of the cylindrical rod 5 and the screw holes 228 of the second receiving portion 224.
- the lock relationship is implemented.
- other manners of cooperation for maintaining the relative positional relationship between the fixed tuning disk 3 and the conductor bars 2 will be further disclosed.
- FIG. 4 another embodiment of the elliptic function type low-pass filter path of the present invention has a structure different from that of the previous embodiment, mainly in that the mounting structure between the partially fixed tuning disk 3 and the conductor bar 2 is different. Please refer to Figure 4 and Figure 5 for details.
- the second receiving portion 224 is provided on the conductor bar 2, but the receiving portion 224 is different from the specific mounting structure of the fixed tuning disk 3. Wherein, a part of the receiving portion maintains a relative positional relationship and an electrical connection relationship directly with the fixed tuning disk 3 through the columnar rod 5, and the other portion is kept opposite to the fixed tuning disk 3 by the support and electrical connection of the column member 6 and the dielectric plate 4. Positional relationship and electrical connection relationship.
- the dielectric plate 4 shown in Fig. 5 has a relatively short vertical height with respect to the dielectric plate 4 shown in Fig. 2 of the previous embodiment, the top of which is fixed with a fixed tuning disk 3, and the bottom is formed with a channel 40 and in the channel. 40 is welded to a column member 6, and the surface of the dielectric plate 4 is printed with microstrip lines 8 respectively connected to the fixed tuning disk 3 and the column member 6 at both ends, thereby fixing the tuning disk 3 and the dielectric plate 4 A fixed structural connection relationship is formed between the column members 6, and a fixed electrical connection relationship is formed between the fixed tuning disk 3, the microstrip line 8, and the column member 6. The non-welded end of the column member 6 is integrally formed with a stud 68.
- the stud 68 can be screwed with the screw hole of the second receiving portion 224 (ie, the hole position 228), thereby fixing the tuning.
- the disk 3, the dielectric plate 4, and the column member 6 all maintain a fixed relative positional relationship with the conductor bars 2 while maintaining an electrical connection relationship.
- the tuning effect can also be achieved by adjusting the position of the screw lock between the column member 6 and the receiving portion 224.
- the column member 6 of the present embodiment is similar to the columnar rod 5 of the previous embodiment, and the connection structure between the fixed tuning disk 3 and the conductor bar 2 different from the previous embodiment is adopted in this embodiment. It is a combination of two different connection structures in the previous embodiment, in which both the microstrip line 8 serves to function as an equivalent inductance and the column member 6 can be used for tuning. It is thus also possible to enlighten the mind of those skilled in the art that the relative positional relationship and electrical connection relationship between the fixed tuning disk 3 and the conductor bars 2 can be maintained by other means not limited by the above embodiments. E.g:
- the conductor bar 2 is provided only with the first type of receiving portion 223, and all of the fixed tuning disks 3 are realized only by the dielectric plate 4 and the conductor bars 2. The relative positional relationship is maintained.
- the conductor bars 2 are only provided with the second receiving portion 224, and all of the fixed tuning disks 3 are realized only by the cylindrical rod 5 and the conductor bars. The relative positional relationship between 2 is maintained.
- the conductor bar 2 is only provided with the second receiving portion 224, and all of the fixed tuning disks 3 are only in the second embodiment of the present invention.
- the specific mating structure of the column member 6 and the dielectric plate 4 achieves the retention of the relative positional relationship with the conductor bars 2.
- the elliptic function low-pass filter path of the present invention has the characteristics of simple structure, flexible implementation, excellent electrical performance, and the like, and the measured bandwidth of the transition band is only 6.6% of the two measured frequency bands of 0-1600 MHz and 1710-2700 MHz.
- the insertion loss can be controlled below 1.0 dB, and the out-of-band rejection can reach 40 dB or more.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims (15)
- 一种椭圆函数型低通滤波通路,包括相盖装的腔体与盖板,所述腔体设有纵长型空腔,于空腔纵长方向两侧分别形成有连接端口,空腔内设有用于实现两个连接端口的电性连接的导体棒,其特征在于:沿该导体棒纵长方向、在所述导体棒上方设有若干与该导体棒电性连接的固定调谐盘,对应每个固定调谐盘均设有活动调谐盘,每个活动调谐盘与穿过所述盖板的一个相应的调谐螺杆相连设,固定调谐盘与活动调谐盘之间互不接触以便容性耦合。
- 根据权利要求1所述的椭圆函数型低通滤波通路,其特征在于,至少一个所述的固定调谐盘,固定在介质板上并通过介质板与所述导体棒保持相对位置关系,介质板上印制有使该固定调谐盘和导体棒电性连接的微带线。
- 根据权利要求2所述的椭圆函数型低通滤波通路,其特征在于,对应该通过介质板与导体棒相固定的固定调谐盘,所述导体棒上形成有承接部,该承接部用于为介质板提供定位并固定所述介质板。
- 根据权利要求3所述的椭圆函数型低通滤波通路,其特征在于,所述介质板底部设有槽道,所述导体棒的承接部上定义有凹槽,介质板以其槽道与承接部的凹槽相配合实现稳固连接定位,介质板上印制的微带线一端与所述固定调谐盘电性连接,另一端与所述承接部电性连接。
- 根据权利要求4所述的椭圆函数型低通滤波通路,其特征在于,所述凹槽为环绕所述导体棒的周向设置。
- 根据权利要求3所述的椭圆函数型低通滤波通路,其特征在于,所述介质板底部设有槽道,所述导体棒的承接部上定义有孔位,一柱状件一端与介质板的槽道相焊接,另一端与承接部的孔位相配合实现稳固连接定位,介质板上印制的微带线一端与所述固定调谐盘电性连接,另一端通过所述柱状件与所述承接部电性连接。
- 根据权利要求6所述的椭圆函数型低通滤波通路,其特征在于,所述孔位为螺孔,所述柱状件与孔位配合的一端为螺柱。
- 根据权利要求2至7中任意一项所述的椭圆函数型低通滤波通路,其特征在于,所有的固定调谐盘均以相同的结构与所述导体棒保持相对位置关系。
- 根据权利要求1至7中任意一项所述的椭圆函数型低通滤波通路,其特征在于,至少一个所述的固定调谐盘,固定在柱状杆上并通过柱状杆与所述导体棒保持相对位置关系和电性连接。
- 根据权利要求9所述的椭圆函数型低通滤波通路,其特征在于,对应该通过柱状杆与所述导体棒相连接的固定调谐盘,所述导体棒上形成有承接部,该承接部用于为柱状杆提供定位并固定所述柱状杆。
- 根据权利要求10所述的椭圆函数型低通滤波通路,其特征在于,所述承接部定义有孔位,所述柱状杆一端与所述固定调谐盘相固设,另一端与承接部的孔位相配合实现稳固连接定位。
- 根据权利要求11所述的椭圆函数型低通滤波通路,其特征在于,所述孔位为螺孔,所述柱状杆与孔位配合的一端为螺柱。
- 根据权利要求11所述的椭圆型函数低通滤波通路,其特征在于,所述固定调谐盘与所述柱状杆一体成型。
- 当权利要求9仅引用权利要求1时,根据该种情况下的权利要求9至13中任意一项所述的椭圆型函数低通滤波通路,其特征在于,所有的固定调谐盘均以相同的结构与所述导体棒保持相对位置关系。
- 一种合路器/双工器/滤波器,其特征在于,其包含如权利要求1至14中任意一项所述的椭圆函数型低通滤波通路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112014007024A BR112014007024A2 (pt) | 2011-09-27 | 2012-09-19 | componente de cavidade de comunicação e caminho de filtro passa baixo com função elíptica do mesmo |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110297529.0A CN102412433B (zh) | 2011-09-27 | 2011-09-27 | 通信腔体器件及其椭圆函数型低通滤波通路 |
CN201110297529.0 | 2011-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013044743A1 true WO2013044743A1 (zh) | 2013-04-04 |
Family
ID=45914373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/081598 WO2013044743A1 (zh) | 2011-09-27 | 2012-09-19 | 通信腔体器件及其椭圆函数型低通滤波通路 |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102412433B (zh) |
BR (1) | BR112014007024A2 (zh) |
WO (1) | WO2013044743A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108054483A (zh) * | 2017-10-23 | 2018-05-18 | 四川天邑康和通信股份有限公司 | 一种可调节端口耦合结构及其在数字直放站腔体滤波器中的应用 |
CN113036354A (zh) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | 一种滤波器及通信设备 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102412433B (zh) * | 2011-09-27 | 2014-01-29 | 京信通信系统(中国)有限公司 | 通信腔体器件及其椭圆函数型低通滤波通路 |
CN102683779B (zh) * | 2012-05-18 | 2014-09-10 | 京信通信系统(中国)有限公司 | 通信腔体器件及其椭圆函数型高通滤波通路 |
CN103855447B (zh) * | 2012-11-29 | 2017-11-28 | 京信通信系统(中国)有限公司 | 腔体器件及其椭圆函数型低通滤波器 |
CN107508020B (zh) * | 2017-09-25 | 2019-11-29 | 江苏贝孚德通讯科技股份有限公司 | 谐振器及椭圆函数型低通滤波器 |
CN111384526A (zh) * | 2018-12-31 | 2020-07-07 | 深圳市大富科技股份有限公司 | 介质滤波器、通信设备、制备介质块及介质滤波器的方法 |
CN112599943B (zh) * | 2020-11-16 | 2022-02-11 | 武汉凡谷电子技术股份有限公司 | 一种新型冲压卷制低通及其加工工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101267219A (zh) * | 2007-03-12 | 2008-09-17 | 京信通信系统(中国)有限公司 | 超宽带双频合路器 |
CN101630766A (zh) * | 2009-07-23 | 2010-01-20 | 西安空间无线电技术研究所 | 反相位耦合椭圆函数螺旋滤波器 |
CN201773929U (zh) * | 2010-08-10 | 2011-03-23 | 合肥恒和通信有限公司 | 一种腔体二功分器 |
CN102412433A (zh) * | 2011-09-27 | 2012-04-11 | 京信通信系统(中国)有限公司 | 通信腔体器件及其椭圆函数型低通滤波通路 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100928915B1 (ko) * | 2005-03-26 | 2009-11-30 | 주식회사 케이엠더블유 | 저역통과필터 |
CN201134487Y (zh) * | 2007-12-27 | 2008-10-15 | 奥雷通光通讯设备(上海)有限公司 | 用于wimax通信系统的带阻滤波器 |
CN201829592U (zh) * | 2010-10-09 | 2011-05-11 | 摩比天线技术(深圳)有限公司 | 一种低通滤波器 |
CN202585690U (zh) * | 2011-09-27 | 2012-12-05 | 京信通信系统(中国)有限公司 | 通信腔体器件及其椭圆函数型低通滤波通路 |
-
2011
- 2011-09-27 CN CN201110297529.0A patent/CN102412433B/zh active Active
-
2012
- 2012-09-19 BR BR112014007024A patent/BR112014007024A2/pt active Search and Examination
- 2012-09-19 WO PCT/CN2012/081598 patent/WO2013044743A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101267219A (zh) * | 2007-03-12 | 2008-09-17 | 京信通信系统(中国)有限公司 | 超宽带双频合路器 |
CN101630766A (zh) * | 2009-07-23 | 2010-01-20 | 西安空间无线电技术研究所 | 反相位耦合椭圆函数螺旋滤波器 |
CN201773929U (zh) * | 2010-08-10 | 2011-03-23 | 合肥恒和通信有限公司 | 一种腔体二功分器 |
CN102412433A (zh) * | 2011-09-27 | 2012-04-11 | 京信通信系统(中国)有限公司 | 通信腔体器件及其椭圆函数型低通滤波通路 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108054483A (zh) * | 2017-10-23 | 2018-05-18 | 四川天邑康和通信股份有限公司 | 一种可调节端口耦合结构及其在数字直放站腔体滤波器中的应用 |
CN113036354A (zh) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | 一种滤波器及通信设备 |
Also Published As
Publication number | Publication date |
---|---|
BR112014007024A2 (pt) | 2017-04-11 |
CN102412433B (zh) | 2014-01-29 |
CN102412433A (zh) | 2012-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013044743A1 (zh) | 通信腔体器件及其椭圆函数型低通滤波通路 | |
JP6676171B2 (ja) | フィルタおよびワイヤレスネットワークデバイス | |
CN203300776U (zh) | 通信腔体器件及其低通滤波通路 | |
WO2018107633A1 (zh) | 高性能带阻滤波器及其通信腔体器件 | |
EP3879622B1 (en) | In-line filter having mutually compensating inductive and capacitive coupling | |
US20100244982A1 (en) | Ultra wide-band dual-frequency combiner | |
EP3823090B1 (en) | Capacitive cross-coupling structure and cavity filter | |
KR102426072B1 (ko) | 캐비티 필터 | |
WO2021093456A1 (zh) | 合路器 | |
JPH01103001A (ja) | 誘電体フィルタ | |
WO2017015995A1 (zh) | 腔体滤波器、射频拉远设备、信号收发装置及双工器 | |
WO2008110040A1 (fr) | Combinateur à double fréquence | |
CN104900951A (zh) | 介质滤波器和通信设备 | |
WO2017113139A1 (zh) | 谐振杆组件、腔体滤波器及包括该腔体滤波器的通信设备 | |
CN107800008A (zh) | 同轴连接器及滤波器、射频器件 | |
WO2014117482A1 (zh) | 新型低通滤波通路及采用它的通信腔体器件 | |
WO2017113164A1 (zh) | 一种腔体滤波器及通信射频器件 | |
JPH0733001U (ja) | マイクロ波帯域フイルタ | |
CN101800347B (zh) | 腔体射频器件及其用于容性交叉耦合的飞杆 | |
WO2016106642A1 (zh) | 腔体滤波器、连接器、双工器以及射频拉远设备 | |
CN210111012U (zh) | 高通滤波器及具有其的通信腔体器件 | |
CN202585690U (zh) | 通信腔体器件及其椭圆函数型低通滤波通路 | |
WO2016106551A1 (zh) | 腔体滤波器及具有该腔体滤波器的射频拉远设备、信号收发装置和塔顶放大器 | |
CN213425159U (zh) | 一种空心电容耦合杆的同轴腔体滤波器 | |
CN209896221U (zh) | 一种侧向调节的滤波器结构 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12837159 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112014007024 Country of ref document: BR |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12837159 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 112014007024 Country of ref document: BR Kind code of ref document: A2 Effective date: 20140324 |