CN201490308U - Ultra wideband tri-frequency combiner - Google Patents
Ultra wideband tri-frequency combiner Download PDFInfo
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- CN201490308U CN201490308U CN2009201435768U CN200920143576U CN201490308U CN 201490308 U CN201490308 U CN 201490308U CN 2009201435768 U CN2009201435768 U CN 2009201435768U CN 200920143576 U CN200920143576 U CN 200920143576U CN 201490308 U CN201490308 U CN 201490308U
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Abstract
The utility model discloses an ultra wideband tri-frequency combiner which comprises a box body, a first input port, a second input port, a third input port, a combining port and a cover plate. The first input port, the second input port and the third input port are respectively installed on one side of the box body, and the combining port is installed on the other side of the box body; three cavities are arranged inside the box body, i.e. a first cavity between the first input port and the combining port, a second cavity between the second input port and the combining port and a third cavity between the third input port and the combining port, a plurality of resonance rods are respectively arranged in the first cavity and the second cavity in sequence, a tuning screw rod is respectively arranged between every two adjacent resonance rods in the first cavity and the second cavity, a strip-shaped groove is formed at the front end of the third cavity, and a plurality of abreast tooth spaces are arranged at the rear end of the third cavity. The mutual isolation between the radio-frequency signal channels is realized by using the unique method; and due to the improved structure, the utility model has the advantages of small insertion loss, large power capacity, high isolation between the channels, etc.
Description
Technical field:
The utility model relates to a kind of treatment facility that is used for closing between the second generation, the third generation and the 4th generation communication system road, relates in particular to the ultra broadband tri-frequency combiner.
Background technology:
Along with developing rapidly of mobile communication, the application mode of multisystem colocation site, common antenna feeder resource obtains the favor of increasing operator.Can reach shared resource by these modes, reduce the effect of system equipment cost.In the 2G/3G/4G co-space feedback system, the tri-frequency combiner microwave device that is absolutely necessary, it mainly acts on is that signal to different system carries out a deciliter road, saves feeder cable and chute to reach, and avoids repeating to build tower, simplified system and the purpose that reduces cost.In addition, the power supply of equipment realizes by radio frequency cable on the base station towers, so the mixer that is connected in series with feeder cable also will have logical galvanic function.
Tri-frequency combiner is four port microwave devices, comprise three tunnel radiofrequency signal paths, wherein: two-way radiofrequency signal path is made up of band pass filter, article two, the channel range of the band pass filter in the radiofrequency signal path adapts to the frequency range setting of the two paths of signals on the road of closing, and other one tunnel radiofrequency signal path is made up of a biobelt resistance filter.During work, the signal of importing from public port ANT shunts to port PO RT1, port PO RT2 or port PO RT3 according to frequency range, on the contrary, also the signal from port PO RT1, port PO RT2 and port PO RT3 input can be closed road output through port ANT.
The radio frequency signal frequency scope of 2G/3G/4G co-space feedback system is 700MHz-2200MHz, 2400MHz-2500MHz and 5800MHz-5900MHz, realize the working band of ultra broadband like this, present most of ultra broadband mixer product adopts dielectric substrate, with the form realization of microstrip circuit.The shortcoming of the product of this version is that volume is big, power capacity is little, and the passive intermodulation index depends on the characteristic of dielectric substrate material greatly, is difficult to control in batch process.
Summary of the invention:
The purpose of this utility model is to provide a kind of ultra broadband tri-frequency combiner, makes its miniaturization, and have insert that loss is little, power capacity big and DC feedback path and radiofrequency signal path between effect such as isolation strip height.
The technical solution adopted in the utility model:
The ultra broadband tri-frequency combiner, comprise box body, first input end mouth, second input port, the 3rd input port, close road port, cover plate, it is characterized in that: box body one side is equipped with first input end mouth, second input port, the 3rd input port, and the box body opposite side is equipped with and closes road port; Box body inside has three cavitys, be respectively the first input end mouth, close first cavity between the road port, second input port, close second cavity between the road port, the 3rd input port, close the 3rd cavity between the road port, all be arranged with some resonant rods in first, second cavity in turn, be equipped with tuning screw rod between per two adjacent resonant rods in first, second cavity, the 3rd cavity front end is a bar-shaped trough, there are a plurality of teeth groove side by side the rear end, the impedance conversion line is installed in the described bar-shaped trough, and the teeth groove sidewall is provided with some tuning posts and stretches in the teeth groove; Described first input end mouth, second input port, the 3rd input port, close road port and all be connected by direct coupling inductance with cavity interior resonance bar or impedance conversion line, described direct coupling inductance is distributed constant formula inductance; The box body upper end is fixed with cover plate, and some tuning screw rods are installed on the cover plate.
Described ultra broadband tri-frequency combiner is characterized in that: isolate mutually by metallic walls between described first cavity, second cavity, the 3rd cavity, metallic walls has window and passes through for coupling inductance near closing the road port place.
Described ultra broadband tri-frequency combiner is characterized in that: described resonant rod is that the upper end is the solid metal cylinder of disk or thick cylinder, and described resonant rod is fixed on first, second cavity bottom.
Described ultra broadband tri-frequency combiner is characterized in that: described impedance conversion line is a sheet metal, and described impedance conversion line vertically is installed in the 3rd cavity, fixes by the rear and front end, and the upper end is all left the space to cover plate, lower end to cavity bottom.
Described ultra broadband tri-frequency combiner is characterized in that: the number of the resonant rod in described first cavity is 4; The number of the resonant rod in described second cavity is 6; The number of the impedance conversion line in described the 3rd cavity is 1.
Described ultra broadband tri-frequency combiner is characterized in that: described tuning screw rod is installed on the cover board and is stretched in first, second cavity, and between per two the adjacent resonant rods in first, second cavity; Perforate screws togather in the teeth groove that stretches into the 3rd cavity on described tuning post and the teeth groove sidewall, and is positioned at a side of impedance conversion line.
Advantage of the present utility model:
The utility model utilizes unique mode with the ultra broadband tri-frequency combiner of the 700-2200MHz of biobelt resistance filter realization, has realized the mutual isolation between the radiofrequency signal path.The application of direct coupling inductance of distributed constant formula and capacitance, make and use product of the present utility model reduced volume greatly, and, the utility model has carried out layout to overall structure, and the improvement by structure has brought also that the insertion loss is little, power capacity big, interchannel isolation advantages of higher.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is the utility model resonant rod schematic diagram;
Fig. 3 is the utility model the 3rd cavity and internal structure schematic diagram thereof;
Embodiment:
Referring to Fig. 1-3:
The ultra broadband tri-frequency combiner, comprise box body 6, first input end mouth 1, second input port 2, the 3rd input port 3, close road port 4, cover plate 5, it is characterized in that: box body 6 one sides are equipped with first input end mouth 1, second input port 2, the 3rd input port 3, and box body 6 opposite sides are equipped with and close road port 4; Box body 6 inside have three cavitys, be respectively the first input end mouth, close first cavity between the road port, second input port, close second cavity between the road port, the 3rd input port, close the 3rd cavity between the road port, all be arranged with some resonant rods 7 in first, second cavity in turn, be equipped with in tuning screw rod 8, the three cavitys between per two adjacent resonant rods in first, second cavity impedance conversion line 9 is installed, impedance conversion line 9 sides are provided with some tuning posts 10; Described first input end mouth 1, second input port 2, the 3rd input port 3, close road port 4 and all be connected by direct coupling inductance with cavity interior resonance bar 7 or impedance conversion line 9, described direct coupling inductance is distributed constant formula inductance; Box body 6 upper ends are fixed with cover plate 5, and some tuning screw rods 8 are installed on the cover plate 5.
Isolate mutually by metallic walls between described first cavity, second cavity, the 3rd cavity, metallic walls has window and passes through for coupling inductance near closing the road port place.
Described resonant rod 7 is the solid metal cylinder of disk or thick cylinder for the upper end, and described resonant rod is fixed on first, second cavity bottom.
Described impedance conversion line 9 is a sheet metal, and described impedance conversion line vertically is installed in the 3rd cavity, fixes by the rear and front end, and the upper end is all left the space to cover plate, lower end to cavity bottom.
The number of the resonant rod 7 in described first cavity is 4; The number of the resonant rod 7 in described second cavity is 6; The number of the impedance conversion line 9 in described the 3rd cavity is 1.
Described tuning screw rod 8 is installed on the cover plate 5 and stretches in first, second cavity, and between per two the adjacent resonant rods 7 in first, second cavity; Described tuning post 10 passes box body 6 lateral walls and stretches in the 3rd cavity, and is positioned at a side of impedance conversion line 9.
The utility model ultra broadband tri-frequency combiner is mainly used in 2G, 3G and 4G signal is closed the road, specifically sees also shown in Figure 1.
Tri-frequency combiner integral body is a box body among Fig. 1, is made up of jointly box body, cover plate and connector.
The left side of box body is provided with the first port PO RT1, the second port PO RT2 and the 3rd port PO RT3, be respectively applied for the radiofrequency signal that receives 5800-5900MHz, 2400-2500MHz and 700-2200MHz, the right side of box body is provided with closes road port ANT, close road port ANT exportable first, second and the 3rd port (PORT1, PORT2 and the PORT3) radiofrequency signal after synthetic, or input signal shunts to first, second or the 3rd port.
Integrated three radio frequency paths on the cavity, i.e. first radio frequency path, second radio frequency path and the 3rd radio frequency path, first radio frequency are by the first port PO RT1, directly coupling inductance and coaxial resonant cavity band pass filter resonant rod are formed; Second radio frequency is made up of the second port PO RT2, direct coupling inductance and coaxial resonant cavity band pass filter resonant rod; The 3rd radio frequency is made up of the 3rd port PO RT3, impedance conversion line; Close road port directly inductance coupling high connection successively.
Each coaxial resonant cavity band pass filter includes coaxial cavity and some resonant rods are formed, specifically referring to Fig. 2.
Comprise the impedance conversion line in the biobelt resistance filter, referring to Fig. 3.
Claims (6)
1. ultra broadband tri-frequency combiner, comprise box body, first input end mouth, second input port, the 3rd input port, close road port, cover plate, it is characterized in that: box body one side is equipped with first input end mouth, second input port, the 3rd input port, and the box body opposite side is equipped with and closes road port; Box body inside has three cavitys, be respectively the first input end mouth, close first cavity between the road port, second input port, close second cavity between the road port, the 3rd input port, close the 3rd cavity between the road port, all be arranged with some resonant rods in first, second cavity in turn, be equipped with tuning screw rod between per two adjacent resonant rods in first, second cavity, the 3rd cavity front end is a bar-shaped trough, there are a plurality of teeth groove side by side the rear end, the impedance conversion line is installed in the described bar-shaped trough, and the teeth groove sidewall is provided with some tuning posts and stretches in the teeth groove; Described first input end mouth, second input port, the 3rd input port, close road port and all be connected by direct coupling inductance with cavity interior resonance bar or impedance conversion line, described direct coupling inductance is distributed constant formula inductance; The box body upper end is fixed with cover plate, and some tuning screw rods are installed on the cover plate.
2. ultra broadband tri-frequency combiner according to claim 1 is characterized in that: isolate mutually by metallic walls between described first cavity, second cavity, the 3rd cavity, metallic walls has window and passes through for coupling inductance near closing the road port place.
3. ultra broadband tri-frequency combiner according to claim 1 is characterized in that: described resonant rod is that the upper end is the solid metal cylinder of disk or thick cylinder, and described resonant rod is fixed on first, second cavity bottom.
4. ultra broadband tri-frequency combiner according to claim 1, it is characterized in that: described impedance conversion line is a sheet metal, described impedance conversion line vertically is installed in the 3rd cavity, fixes by the rear and front end, and the upper end is all left the space to cover plate, lower end to cavity bottom.
5. ultra broadband tri-frequency combiner according to claim 1 is characterized in that: the number of the resonant rod in described first cavity is 4; The number of the resonant rod in described second cavity is 6; The number of the impedance conversion line in described the 3rd cavity is 1.
6. ultra broadband tri-frequency combiner according to claim 5 is characterized in that: described tuning screw rod is installed on the cover board and is stretched in first, second cavity, and between per two the adjacent resonant rods in first, second cavity; Perforate screws togather in the teeth groove that stretches into the 3rd cavity on described tuning post and the teeth groove sidewall, and is positioned at a side of impedance conversion line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201435768U CN201490308U (en) | 2009-03-30 | 2009-03-30 | Ultra wideband tri-frequency combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201435768U CN201490308U (en) | 2009-03-30 | 2009-03-30 | Ultra wideband tri-frequency combiner |
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| Publication Number | Publication Date |
|---|---|
| CN201490308U true CN201490308U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201435768U Expired - Fee Related CN201490308U (en) | 2009-03-30 | 2009-03-30 | Ultra wideband tri-frequency combiner |
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| CN (1) | CN201490308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172956A (en) * | 2017-11-16 | 2018-06-15 | 上海华为技术有限公司 | A kind of microwave combiner |
| WO2022141004A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Signal transceiving apparatus, feed structure, and antenna |
-
2009
- 2009-03-30 CN CN2009201435768U patent/CN201490308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172956A (en) * | 2017-11-16 | 2018-06-15 | 上海华为技术有限公司 | A kind of microwave combiner |
| WO2022141004A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Signal transceiving apparatus, feed structure, and antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Hauxia Microwave Electronic Co.,Ltd. Assignor: Huadong Photoelectric Technique Institute of Anhui Province Contract record no.: 2010340000097 Denomination of utility model: Ultra wideband tri-frequency combiner Granted publication date: 20100526 License type: Exclusive License Record date: 20100705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |