CN203415671U - Low-intermodulation high-power one-to-two power divider - Google Patents
Low-intermodulation high-power one-to-two power divider Download PDFInfo
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- CN203415671U CN203415671U CN201320488413.XU CN201320488413U CN203415671U CN 203415671 U CN203415671 U CN 203415671U CN 201320488413 U CN201320488413 U CN 201320488413U CN 203415671 U CN203415671 U CN 203415671U
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Abstract
The utility model relates to a power divider, especially a low-intermodulation high-power one-to-two power divider for wireless communication systems of various frequency bands. The low-intermodulation high-power one-to-two power divider comprises a cavity and a cover plate matching the cavity, a strip line, a medium plate, and a connector; the cavity has one input end and two output ends; the input end and the output ends are connected through the strip line; the strip line is arranged right in the middle of the cavity; and the two strip lines are arranged opposite to each other in a mirror image manner, and the upper surface of the two strip lines and the lower surface of the two strip lines are respectively provided with the medium plate; the medium plate covers about 2 / 3 of space of the entire cavity; and an isolation resistor crosses between the adjacent nodes of the two strip lines. The low-intermodulation high-power one-to-two power divider, after the right design and calculation, only 3 segments of air strip line are used to achieve the one-to-two power division; the low-intermodulation high-power one-to-two power divider is simple in structure, small in volume, low in cost, fewer in production procedure, great in manufacturability, good in standing-wave ratio, isolation degree, extremely low in insertion loss, extremely low in three order intermodulation value, high in power, and wide in frequency range, and can effectively solve the problems of the micro-strip power divider intermodulation index difference and low power capacity.
Description
Technical field
The utility model relates to a kind of microwave receiving technology, power divider structure, espespecially a kind of low intermodulation high power broadband two power splitters for various frequency range wireless communication systems.
Background technology
In communication apparatus, power splitter has a very wide range of applications, for example, in phased array radar system, transmitter power is assigned in each transmitter unit and go, and in reality, often a certain power need to be assigned in each branch circuit by a certain percentage.Power splitter is of a great variety, and common power splitter has transformer type, microstrip-type or strip line formula, waveguide type and ferrite type, and they respectively have pluses and minuses and use occasion.At present, in the reception and transmission of mobile communication microwave, often run into signal is divided into two and is sent to the situation of two receiving equipments, at this moment, will use one-to-two power splitter.In existing mobile communication technology, conventional power splitter has two kinds of microstrip power divider and medium power splitters, but it all exists the problems such as intermodulation index error and power capacity are low to some extent.Therefore, design a simple in structurely, cost is low, has good standing-wave ratio, isolation, utmost point filter with low insertion loss, extremely low third order intermodulation value, and high power, the power splitter of wide frequency range is necessary.
In addition, limited due to band resource in wireless communication system while therefore transmitting two or more carrier wave in passage of system, just likely produces intermodulation product simultaneously.These intermodulation products can't detect in emission system, because they are well below thermal noise level, can not have influence on the quality transmitting.But, once these faint intermodulation products are coupled in receiver, fall into reception frequency range, will be considerably beyond the thermal noise of receiver minimum tolerance limit, and greatly reduce the sensitivity of receiver, thus affect the work of whole communication system, when serious, can make whole system in paralysis.Having had many cases is both at home and abroad because of third order intermodulation, to cause the system failure.
Summary of the invention
In order to address the above problem, the utility model aims to provide a kind of microwave receiving technology, power divider structure, espespecially a kind of low intermodulation high power broadband two power splitters for various frequency range wireless communication systems.
Realize above-mentioned purpose, the technical solution used in the present invention is: a kind of low intermodulation high power broadband two power splitters, comprise cavity and the cover plate matching with it, described cavity has an input joint and two output end connectors, in described input joint and output end connector, be provided with conductor, input joint is connected by strip line with output end connector, it is characterized in that: described strip line is unsettled to be arranged in the middle of cavity, described strip line is two, and to be the bending of three joint sides corrugated, and the relative mirror image of two strip lines is equipped; Between the adjacent node of described two strip lines, all cross-over connection has isolation resistance; Between described two strip lines, be provided with two dielectric-slabs, the two ends of described strip line are welded on respectively in the conductor in input and output end connector.
Secondly, two described output end connectors are positioned at the same side of cavity, and described input joint is positioned at the opposite side relative with output end connector.
In addition, it is the hole of 1.5-3mm that described joint inner wire axial centre has diameter, and it is the hole of 1-2mm that there is diameter side, and the conductor thickness layer in described joint has 6-8mm after pruning.
Moreover, the metallic conductor thin slice that described two strip lines are electroplate.
Secondly, described dielectric-slab accounts for 2/3rds of whole cavity space.
In addition, described dielectric-slab one side has circular hole, in described circular hole, is provided with isolation resistance.
Moreover the cover plate that described cavity matches with it, is provided with straight trough on heart line of symmetry therein, and straight trough is near between output one end.
The beneficial effects of the utility model are presented as: the utility model strip line is unsettled two corrugated strip lines of five joint sides bending that are arranged in cavity, and the relative mirror image of two strip lines is equipped; Between the adjacent node of described two strip lines, all cross-over connection has isolation resistance, 1/4 wavelength of frequency centered by the monolateral length of second section side's bending, and the 3rd joint and first segment increase successively; The utility model is according to Chebyshev's principle design, application three joint air strip lines are realized one-to-two merit and are divided, there is excellent passive intermodulation index, and power capacity greatly, extremely low Cha Damage, high and the wide frequency range of isolation, its frequency range, at 698-2700MHz, can solve the problems such as existing microstrip power divider and medium strip line power splitter intermodulation index error and power capacity are low effectively.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Accompanying drawing marking explanation:
1-cavity; 2-cover plate; 3-input joint; 4-output end connector; 5-strip line; 6-dielectric-slab; 7-circular hole; 8-isolation resistance; 9-straight trough.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
As shown in Figure 1, a kind of low intermodulation high power broadband two power splitters, the cover plate 2 that comprises cavity 1 and match with it, described cavity 1 has an input joint 3 and two output end connectors 4, in described input joint 3 and output end connector 4, be provided with conductor, input joint 3 is connected by strip line 5 with output end connector 4, it is characterized in that: described strip line 5 is unsettled to be arranged in the middle of cavity 1, described strip line 5 is two, and to be the bending of three joint sides corrugated, and the relative mirror image of two strip lines 5 is equipped; Between the adjacent node of described two strip lines 5, all cross-over connection has isolation resistance 8; 5 of described two strip lines are provided with two dielectric-slabs 6, and the two ends of described strip line 5 are welded on respectively in the conductor in input and output end connector 4.
Secondly, two described output end connectors 4 are positioned at the same side of cavity 1, and described input joint 3 is positioned at the opposite side relative with output end connector 4.
In addition, it is the hole of 1.5-3mm that described joint inner wire axial centre has diameter, and it is the hole of 1-2mm that there is diameter side, and the conductor thickness layer in described joint has 6-8mm after pruning.
Moreover, the metallic conductor thin slice that described two strip lines 5 are electroplate.
Secondly, described dielectric-slab 6 accounts for 2/3rds of whole cavity 1 space.
In addition, described dielectric-slab 6 one sides have circular hole 7, in described circular hole 7, are provided with isolation resistance 8.
Moreover the cover plate 2 that described cavity 1 matches with it, is provided with straight trough 9 on heart line of symmetry therein, and straight trough 9 is near between output one end.
A kind of air strip line one-to-two power splitter of the present utility model, comprise that its circuit adopts T2 red copper material, copper strips thickness 1.2mm, silver-plated thickness 5-10 μ m, the red copper material of T2 dispels the heat while being beneficial to power, by numeral, indicates the order of each intersection point in Fig. 1, the utility model comprises input, the first output road and the second output road, and the second output road is equipped with the first output road relative mirror image, by take first in Fig. 1, to export road be example below, describes one by one.
Two outputs are positioned at the same side of cavity 1, and input is positioned at the opposite side relative with output.The metallic conductor diaphragm of strip line 5 for adopting metal copper plate to make, its surface is coated with silver.Electroplate is conducive to signal and transmits, and reduces power loss, and input adopts rectangle copper strips, and its horizontal width is 1.2mm, and its vertical length is 3mm.
The first output road is divided into first segment, second section, the 3rd joint and output successively, parameter is respectively: first segment can be divided into 8 sections, and the width of each section of copper strips is 2.1mm, wherein, first paragraph level connection joint also extends to the right in the lower right corner of input, and its length is 1.85mm; The end that the head end of second segment connects first paragraph upwards holds 45° angle, and its horizontal length is 1.5mm; The head end of the 3rd section connects end the level of second segment and extends to the right, and its length is 14.00mm; The head end of the 4th section connects the end of the 3rd section and extends vertically downward, and its length is 10.60mm, and the head end of the 5th section connects end the level of the 4th section and extends left; The head end of the 6th section connects the end of the 5th section and extends vertically upward, and the head end of the 7th section connects end the level of the 6th section and extends left, and the head end of the 8th section connects the end of the 7th section and extends straight down.
Second section can be divided into 5 sections, and the width of each section of copper strips is different, wherein, and the end of the 8th section in the head end of the first paragraph connection first order, and extend vertically downward, width is 2.1mm; The head end of second segment connects end the level of first paragraph and extends to the right, and width is 1.5mm; The head end of the 3rd section connects the end of second segment and extends vertically downward, and length is 6.4mm; The head end of the 4th section connects end the level of the 3rd section and extends left; The head end of the 5th section connects the end of the 4th section and extends vertically downward, and width is 2.4mm.
The 3rd joint can be divided into 5 sections, and the width of each section of copper strips is 2.2mm, wherein, and the end of the 5th section in the head end of first paragraph connection second section, and extend vertically downward; The head end of second segment connects end the level of three sections and extends to the right; The head end of the 3rd section connects the end of second segment and extends vertically downward; The head end of the 4th section connects the end of the 3rd section and extends to upper left side, at an angle; The head end of the 5th section connects the end of the 4th section and extends vertically downward.
Output can be divided into 2 sections, and the width of each section of copper strips is not identical, and wherein, the head end of first paragraph connects in the 3rd joint the end of the 5th section, and level extends to the right, and width is 2.8mm; The head end of second segment connects the end of first paragraph and extends vertically downward, and width is 1.5mm.It is equipped that the structure on the second tunnel and the structure of the first via are mirror image with the axis of input, do not repeat them here.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, the technical staff of the industry, under the inspiration of the technical program, can make some distortion and revise, any modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. one kind low intermodulation high power broadband two power splitters, comprise cavity and the cover plate matching with it, described cavity has an input joint and two output end connectors, in described input joint and output end connector, be provided with conductor, input joint is connected by strip line with output end connector, it is characterized in that: described strip line is unsettled to be arranged in the middle of cavity, described strip line is two, and to be the bending of three joint sides corrugated, and the relative mirror image of two strip lines is equipped; Between the adjacent node of described two strip lines, all cross-over connection has isolation resistance; Between described two strip lines, be provided with two dielectric-slabs, the two ends of described strip line are welded on respectively in the conductor in input and output end connector.
2. a kind of low intermodulation high power according to claim 1 broadband two power splitters, is characterized in that: two described output end connectors are positioned at the same side of cavity, and described input joint is positioned at the opposite side relative with output end connector.
3. a kind of low intermodulation high power according to claim 1 broadband two power splitters, it is characterized in that: it is the hole of 1.5-3mm that described joint inner wire axial centre has diameter, it is the hole of 1-2mm that there is diameter side, and the conductor thickness layer in described joint has 6-8mm after pruning.
4. a kind of low intermodulation high power according to claim 1 broadband two power splitters, is characterized in that: the metallic conductor thin slice that described two strip lines are electroplate.
5. a kind of low intermodulation high power according to claim 1 broadband two power splitters, is characterized in that: described dielectric-slab accounts for 2/3rds of whole cavity space.
6. a kind of low intermodulation high power according to claim 1 broadband two power splitters, is characterized in that: described dielectric-slab one side has circular hole, in described circular hole, is provided with isolation resistance.
7. a kind of low intermodulation high power according to claim 1 broadband two power splitters, is characterized in that: the cover plate that described cavity matches with it, on heart line of symmetry, be provided with straight trough therein, and straight trough is near between output one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488413.XU CN203415671U (en) | 2013-08-09 | 2013-08-09 | Low-intermodulation high-power one-to-two power divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488413.XU CN203415671U (en) | 2013-08-09 | 2013-08-09 | Low-intermodulation high-power one-to-two power divider |
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| CN203415671U true CN203415671U (en) | 2014-01-29 |
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| CN201320488413.XU Expired - Lifetime CN203415671U (en) | 2013-08-09 | 2013-08-09 | Low-intermodulation high-power one-to-two power divider |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854497A (en) * | 2019-10-21 | 2020-02-28 | 武汉滨湖电子有限责任公司 | P, L dual-waveband ultra-wideband air stripline power distribution network |
| CN111628260A (en) * | 2020-06-28 | 2020-09-04 | 中国电子科技集团公司第二十研究所 | Power distribution network with high power capacity |
| CN112436259A (en) * | 2019-08-26 | 2021-03-02 | 江苏久鑫铜业有限公司 | Air stripline Wilkinson power divider of miniaturized broadband |
-
2013
- 2013-08-09 CN CN201320488413.XU patent/CN203415671U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436259A (en) * | 2019-08-26 | 2021-03-02 | 江苏久鑫铜业有限公司 | Air stripline Wilkinson power divider of miniaturized broadband |
| CN110854497A (en) * | 2019-10-21 | 2020-02-28 | 武汉滨湖电子有限责任公司 | P, L dual-waveband ultra-wideband air stripline power distribution network |
| CN111628260A (en) * | 2020-06-28 | 2020-09-04 | 中国电子科技集团公司第二十研究所 | Power distribution network with high power capacity |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151130 Address after: Yuexiu District Guangzhou City, Guangdong province 510000 martyrs Road No. 81 Hongdu building A building 8L Patentee after: GUANGZHOU COMPASS ANTENNA DESIGN INSTITUTE Co.,Ltd. Address before: Shijie Town, Guangdong city of Dongguan province Zhengwen road 523000 No. 17 Patentee before: Li Zimeng |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510000 202A building, building 40, North Gate Road, Liwan District, Guangdong, Guangzhou Patentee after: GUANGZHOU COMPASS ANTENNA DESIGN INSTITUTE Co.,Ltd. Address before: Yuexiu District Guangzhou City, Guangdong province 510000 martyrs Road No. 81 Hongdu building A building 8L Patentee before: GUANGZHOU COMPASS ANTENNA DESIGN INSTITUTE Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510000 No. 5, Gongye 1st Road, Nansha street, Nansha District, Guangzhou, Guangdong (311, 3rd floor, main building) Patentee after: Guangzhou Sinan Technology Co.,Ltd. Address before: 510000 room 202a, complex building, No. 40, zhoumen North Road, Liwan District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU COMPASS ANTENNA DESIGN INSTITUTE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |