CN215119198U - Ultra-wideband general combiner - Google Patents
Ultra-wideband general combiner Download PDFInfo
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- CN215119198U CN215119198U CN202120824923.4U CN202120824923U CN215119198U CN 215119198 U CN215119198 U CN 215119198U CN 202120824923 U CN202120824923 U CN 202120824923U CN 215119198 U CN215119198 U CN 215119198U
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Abstract
The utility model discloses a general combiner of ultra wide band, the one end symmetry of main part is equipped with first signal transmission port and second signal transmission port, the other end of main part is equipped with closes way signal transmission port, one side fixedly connected with a plurality of inductors that keep gapped in the filtering intracavity and lie in the combiner main part, a plurality of condensers that keep gapped of opposite side fixedly connected with that lie in the combiner main part in the filtering intracavity, be used for lumped parameter circuit and distributed parameter circuit to combine together and constitute mixed microstrip circuit, be used for first signal transmission port and close way signal transmission port and constitute low pass filter through the filtering chamber, be used for second signal transmission port and close way signal transmission port and constitute high pass filter through the filtering chamber. The utility model discloses make general combiner of ultra wide band more be suitable for current full civilian communication frequency channel, solved current combiner expensive, huge, heavy, the insertion loss is big and the high technological problem of the production degree of difficulty, improved the price/performance ratio, improved market competition.
Description
Technical Field
The utility model belongs to the technical field of the combiner, especially, relate to a general combiner of ultra wide band.
Background
The cavity filter and the cavity combiner are widely used in the modern communication field, which allow useful signals to pass through a signal link to the maximum extent and inhibit useless signals to the maximum extent, meanwhile, the combiner can also carry out the splitting and combining of signals of different frequency bands, along with the rapid advance of the 5G technology, in order to achieve greater channel capacity, higher transmission rates, mobile communication systems are moving towards higher frequencies, in order to achieve coexistence with existing systems, combiners are required to meet wider bandwidth requirements, and thus, in the process of evolution of mobile communication systems, high-performance combiners are naturally required, and currently, most of the known radio-frequency signal combiners adopt an air cavity type structure, and the combiner or the shunt is carried out aiming at a plurality of single frequency segments, the air cavity type combiner is expensive, large, heavy, large in insertion loss and low in intermodulation difference, and radio frequency signals of most of the current civil mobile communication systems cannot be synthesized into a single-path signal.
Therefore, the design of the ultra-wideband general combiner becomes a technical problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a general combiner of ultra wide band to solve the problem mentioned in the above-mentioned background art.
For realizing the purpose of the above utility model, the technical scheme adopted is as follows:
an ultra-wideband general combiner comprises a combiner main body, wherein a filter cavity for signal transmission is formed in the combiner main body, a first signal transmission port and a second signal transmission port are symmetrically formed in one end of the combiner main body, a combiner signal transmission port is formed in the other end of the combiner main body, a cover plate for sealing is detachably connected to the combiner main body and is positioned above the filter cavity through screws, a plurality of inductors with gaps are fixedly connected to one side of the combiner main body in the filter cavity, a plurality of capacitors with gaps are fixedly connected to the other side of the combiner main body in the filter cavity, the inductors and the capacitors are separated through separation windows integrally connected to the filter cavity, and are used for combining a lumped parameter circuit and a distributed parameter circuit to form a mixed microstrip circuit, the first signal transmission port and the combined signal transmission port form a low-pass filter through the filter cavity, and the second signal transmission port and the combined signal transmission port form a high-pass filter through the filter cavity.
The utility model discloses further set up to: the capacitor is a chip high-Q capacitor and is arranged at equal intervals, and the inductor is a chip wire inductor.
The utility model discloses further set up to: and the signal input and output frequency band of the first signal transmission port is 490-960 MHz.
The utility model discloses further set up to: and the signal input and output frequency band of the second signal transmission port is 1427MHz-3800 MHz.
The utility model discloses further set up to: the filtering cavity adopts a low-pass sheet and high-pass coupling type filtering structure.
The utility model discloses further set up to: the combiner comprises a combiner body and a first signal transmission port, wherein the combiner body is provided with a first signal transmission port and a second signal transmission port, the combiner body is provided with a second signal transmission port, the first signal transmission port and the second signal transmission port are respectively connected with a combiner signal transmission port, and the combiner signal transmission port is connected with a combiner signal transmission port.
The utility model discloses further set up to: auxiliary square holes and auxiliary strip-shaped holes convenient for wiring and mounting are symmetrically formed in the auxiliary lug plates.
The utility model discloses further set up to: the first signal transmission port, the second signal transmission port and the combiner signal transmission port are detachably connected with the combiner main body through fixing seats arranged at two ends of the combiner main body, and the fixing seats are fixedly connected with the combiner main body through screws.
The utility model discloses further set up to: and a character indication mark is embedded and carved on one side of the cover plate, which is deviated from the combiner main body.
To sum up, compared with the prior art, the utility model discloses a general combiner of ultra wide band, the one end symmetry of combiner main part is equipped with first signal transmission port and second signal transmission port, the other end of combiner main part is equipped with closes way signal transmission port, in the filtering intracavity and lie in a plurality of inductors that keep gapped of one side fixedly connected with of combiner main part, in the filtering intracavity and lie in a plurality of condensers that keep gapped of the opposite side fixedly connected with of combiner main part, a mixed microstrip circuit for lumped parameter circuit and distribution parameter circuit combine together and constitute, a low pass filter is constituteed through the filtering chamber with closing signal transmission port for second signal transmission port and closing signal transmission port constitute high pass filter through the filtering chamber. Through the arrangement, the ultra-wideband general combiner is more suitable for the existing civil communication frequency band, the cost performance is improved, and the market competitiveness is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an ultra-wideband general combiner provided in this embodiment;
fig. 2 is a schematic diagram of a front view structure of an ultra-wideband general combiner provided in this embodiment;
fig. 3 is a schematic diagram of an internal structure of an ultra-wideband general combiner provided in this embodiment.
Reference numerals: 1. a combiner main body; 11. an auxiliary ear plate; 12. auxiliary square holes; 13. auxiliary strip-shaped holes; 14. a fixed seat; 2. a filter cavity; 3. a second signal transmission port; 4. a first signal transmission port; 5. a combined signal transmission port; 6. a cover plate; 61. character indication marks; 7. a capacitor; 8. an inductor; 9. a partition window.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.
An ultra-wideband general combiner is disclosed, as shown in fig. 1-3, comprising a combiner body 1 with a filter cavity 2 for signal transmission therein, one end of the combiner body 1 is symmetrically provided with a first signal transmission port 4 and a second signal transmission port 3, the other end of the combiner body 1 is provided with a combiner signal transmission port 5, a cover plate 6 for sealing is detachably connected on the combiner body 1 and above the filter cavity 2 through screws, a plurality of inductors 8 keeping gaps are fixedly connected in the filter cavity 2 and at one side of the combiner body 1, a plurality of capacitors 7 keeping gaps are fixedly connected in the filter cavity 2 and at the other side of the combiner body 1, the inductors 8 and the capacitors 7 are separated through a separation window 9 integrally connected in the filter cavity 2, and are used for combining a lumped parameter circuit and a distributed parameter circuit to form a hybrid microstrip circuit, the first signal transmission port 4 and the combined signal transmission port 5 form a low-pass filter through the filter cavity 2, and the second signal transmission port 3 and the combined signal transmission port 5 form a high-pass filter through the filter cavity 2.
In the specific implementation process, the capacitor 7 is a chip high-Q capacitor and is arranged with equal gaps, the inductor 8 is a chip wire inductor, and it should be noted that the Q value and the D value of the capacitor are as follows: q is a quality factor, D is a loss angle factor, also called TAN & loss angle, Q is equivalent to the reciprocal of D, therefore, Q is in inverse relation, Q is a main parameter for measuring the capacitor, and the higher Q is, the lower the loss is, the higher the efficiency is.
It can be understood that specific functions of the chip-type high-Q capacitor and the chip-type line inductor in this embodiment can be obtained by those skilled in the art according to the prior art, and details of the structure and the operation principle of the chip-type high-Q capacitor and the chip-type line inductor are not described herein.
Further, the signal input/output frequency band of the first signal transmission port 4 is 490MHz-960 MHz.
Further, the signal input/output frequency band of the second signal transmission port 3 is 1427MHz-3800 MHz.
In the present embodiment, the filter cavity 2 adopts a low-pass filter and a high-pass coupled filter structure.
In this embodiment, a first signal transmission port 4 and a second signal transmission port 3 are connected with a corresponding system of filter cavities 2 in a direct coupling manner, a combined signal transmission port 5 connects all signal filter cavities 2 together through a common shaft to synthesize a signal output, the first signal transmission port 4 is a low-frequency port with a frequency band of 490MHz to 960MHz, and is directly coupled with a matched inductor 8, and the second signal transmission port 3 is a high-frequency port with a frequency band of 1427MHz to 3800MHz, and is inductively coupled with a matched inductor 7, so that signal transmission is realized, and the technical problems of high cost, large size, heavy weight, large insertion loss and high production difficulty of the existing combiner are solved.
In this embodiment, a hybrid microstrip circuit structure combining a lumped parameter circuit and a distributed parameter circuit is adopted to implement the dual-wideband combiner, the lumped parameter element has a plurality of chip line inductors and chip high-Q capacitors, and the distributed parameter circuit adopts an LC circuit.
The working principle of the combiner is as follows: the mixed microstrip circuit between the first signal transmission port 4 and the combined signal transmission port 5 forms a low-pass filter with frequency covering 490-960 MHz; the mixed high-pass circuit between the second signal transmission port 3 and the combined signal transmission port 5 forms a high-pass filter with the frequency covering the frequency range of 1427MHz-3800MHz, and the radio-frequency signal with the frequency falling in the frequency range of 490MHz-960MHz entering from the first signal transmission port 4 can only be output from the combined signal transmission port 5 but cannot reach the second signal transmission port 3; the radio frequency signal with frequency falling in the 1427MHz-3800MHz band entering from the second signal transmission port 3 can only be output from the combined signal transmission port 5, but cannot reach the first signal transmission port 4, otherwise, the first signal transmission port 4 and the second signal transmission port 3 are mutually isolated, in order to correct the deviation of the electrical index caused by the error of the strip sheet and the circuit element, the isolation can be realized by using a medium open-circuit inductor on the strip transmission line or at the element connection part, or gradually thickening or thinning, thereby playing a role in fine adjustment.
In the specific implementation process, two ends of the combiner main body 1 are fixedly connected with auxiliary ear plates 11 for fixing and installing the ultra-wideband general combiner through screws, and the auxiliary ear plates 11 are located on one sides of the first signal transmission port 4, the second signal transmission port 3 and the combiner signal transmission port 5.
Furthermore, the auxiliary lug plate 11 is symmetrically provided with an auxiliary square hole 12 and an auxiliary strip-shaped hole 13 for facilitating wiring and installation.
Wherein, first signal transmission port 4, second signal transmission port 3 and close way signal transmission port 5 all can dismantle with combiner main part 1 through fixing base 14 of locating combiner main part 1 both ends and be connected, and fixing base 14 passes through screw and combiner main part 1 fixed connection to this improves structure flexibility and price/performance ratio.
Wherein, a character indication mark 61 is embedded on one side of the cover plate 6 departing from the combiner main body 1.
To sum up, the utility model discloses following beneficial effect has: the utility model discloses a general combiner of ultra wide band, the one end symmetry of combiner main part 1 is equipped with first signal transmission port 4 and second signal transmission port 3, the other end of combiner main part 1 is equipped with closes way signal transmission port 5, can dismantle through the screw and be connected with the apron 6 that is used for sealing on combiner main part 1 and lie in 2 tops in filtering chamber, a plurality of inductor 8 that keep gapped of one side fixedly connected with that lie in combiner main part 1 in filtering chamber 2, a plurality of capacitors 7 that keep gapped of opposite side fixedly connected with that lie in combiner main part 1 in filtering chamber 2, filtering chamber 2 adopts low logical piece and high pass coupling formula filtering structure, promptly through this setting, make general combiner of ultra wide band more be suitable for current all civilian communication frequency channel, the cost performance is improved, market competition has been improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An ultra-wideband general combiner is characterized in that: the combiner comprises a combiner main body, wherein a filtering cavity for signal transmission is formed in the combiner main body, a first signal transmission port and a second signal transmission port are symmetrically formed in one end of the combiner main body, a combiner signal transmission port is formed in the other end of the combiner main body, a cover plate for sealing is detachably connected to the combiner main body and positioned above the filtering cavity through screws, a plurality of inductors keeping gaps are fixedly connected to one side of the combiner main body in the filtering cavity, a plurality of capacitors keeping gaps are fixedly connected to the other side of the combiner main body in the filtering cavity, the inductors and the capacitors are separated through separation windows integrally connected to the filtering cavity, a lumped parameter circuit and a distributed parameter circuit are combined to form a mixed microstrip circuit, and the first signal transmission port and the combiner signal transmission port form a low-pass filter through the filtering cavity, the second signal transmission port and the combined signal transmission port form a high-pass filter through the filter cavity.
2. The ultra-wideband general combiner of claim 1, wherein said capacitors are chip high Q capacitors and are arranged with equal gaps, and said inductors are chip line inductors.
3. The ultra-wideband general combiner of claim 1, wherein said first signal transmission port has a signal input and output frequency range of 490MHz-960 MHz.
4. The ultra-wideband general combiner of claim 1, wherein said second signal transmission port has a signal input/output frequency band of 1427MHz-3800 MHz.
5. The ultra-wideband general combiner of claim 1, wherein said filter cavity employs low pass and high pass coupled filter structures.
6. The ultra-wideband general combiner according to claim 1, wherein two ends of the combiner main body are fixedly connected with auxiliary ear plates for fixing and mounting the ultra-wideband general combiner through screws, and the auxiliary ear plates are located at one side of the first signal transmission port, the second signal transmission port and the combined signal transmission port.
7. The ultra-wideband general combiner of claim 6, wherein said auxiliary ear plate is symmetrically provided with auxiliary square holes and auxiliary strip-shaped holes for convenient wiring and installation.
8. The ultra-wideband general combiner according to claim 1, wherein the first signal transmission port, the second signal transmission port and the combined signal transmission port are detachably connected to the combiner main body through fixing seats provided at two ends of the combiner main body, and the fixing seats are fixedly connected to the combiner main body through screws.
9. The ultra-wideband general combiner of claim 1, wherein a side of said cover plate facing away from said combiner main body is embedded with a character indication mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120824923.4U CN215119198U (en) | 2021-04-21 | 2021-04-21 | Ultra-wideband general combiner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120824923.4U CN215119198U (en) | 2021-04-21 | 2021-04-21 | Ultra-wideband general combiner |
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| CN215119198U true CN215119198U (en) | 2021-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498459A (en) * | 2022-10-10 | 2022-12-20 | 人天通信集团有限公司 | Multi-path same-frequency combiner |
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2021
- 2021-04-21 CN CN202120824923.4U patent/CN215119198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498459A (en) * | 2022-10-10 | 2022-12-20 | 人天通信集团有限公司 | Multi-path same-frequency combiner |
| CN115498459B (en) * | 2022-10-10 | 2023-11-21 | 人天通信集团有限公司 | Multipath same-frequency combiner |
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