CN201562742U - High-power broadband 3dB bridge - Google Patents
High-power broadband 3dB bridge Download PDFInfo
- Publication number
- CN201562742U CN201562742U CN2009203139966U CN200920313996U CN201562742U CN 201562742 U CN201562742 U CN 201562742U CN 2009203139966 U CN2009203139966 U CN 2009203139966U CN 200920313996 U CN200920313996 U CN 200920313996U CN 201562742 U CN201562742 U CN 201562742U
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- electric bridge
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Abstract
A high-power broadband 3dB bridge comprises an upper metal earthing plate, a lower metal earthing plate, a first coupling plate, a second coupling plate and a plurality of connecting components. The upper metal earthing plate and the lower metal earthing plate are mutually connected via a metal support post and opposite to each other in an up and down parallel manner; the first coupling plate and the second coupling plate are connected via an insulating support post to form an up and down parallel stacked structure with a certain spacing, the first coupling plate and the second coupling plate are fixed between the upper metal earthing plate and the lower metal earthing plate and respectively provided with an opening end, a sealed end and two parallel sides, the first coupling plate and the second coupling plate are U-shaped metal sheets and in mirror image arrangement along a perpendicular face, and the two parallel sides of the first coupling plate relatively overlap the two parallel sides of the second coupling plate; and the plurality of connecting components are electrically connected with the opening ends of the first coupling plate and the second coupling plate. With the U-shaped metal sheets, the bridge realizes larger power capacity relative to conventional PCB plates or cables, and by adjusting sizes of the U-shaped metal sheets and distances between the metal sheets and the upper metal earthing plate and the lower metal earthing plate, the bridge can realize phase shifting of 90+-3 degrees in all-band frequency of 460-860MHz and coupling coefficient of 3+-0.5dB with standing-wave ratio smaller than 1.1.
Description
Technical field
The utility model relates to the 3dB electric bridge, particularly a kind of high-power wideband 3dB electric bridge.
Background technology
Along with the development of broadband terrestrial DTV, in order to transmit more TV programme, frequency bandwidth requires increasing, from several MHz at initial stage to tens MHz hundreds of MHz frequency bandwidth till now.Simultaneously, in order to avoid disturbing, different frequencies is adopted in various places, and this has just had new requirement to antenna.High power television transmitting station in the past, most of batswing tab horizontally polarized omnidirectional antenna that adopts, this antenna adopt batswing tab oscillator quadrature 90 degree, and phase phasic difference 90 degree between while two groups of batswing tabs are to form horizontal polarization omnidirectional radiation ripple.
The batwing antenna unit itself is a kind of wideband structural, realize that omnidirectional radiation then is subjected to the restriction of phase shifter.As application number is the integrated horizontally polarized omnidirectional antenna of 200720169917.X, just is subjected to the restriction of phase shifter, in the 460MHz-860MHz frequency range, can only be divided into several frequency ranges and realize, has restricted the broadband character of batwing antenna unit greatly.Present 3dB electric bridge all adopts the pcb board material, and power capacity is less, and loss is big, and phase bandwidth is narrow simultaneously, can not satisfy the broadband requirement.
The utility model content
Main purpose of the present utility model is to overcome that 3dB electric bridge power capacity is little in the technology, loss is big, and the shortcoming of narrow bandwidth etc. provides a kind of high-power wideband 3dB electric bridge that can be used for broadband batswing tab horizontally polarized omnidirectional antenna.
This uses the following technical scheme of novel employing: a kind of high-power wideband 3dB electric bridge comprises
Last metal ground plate and following metal ground plate, it interconnects by the metallic support post and is parallel up and down relative;
First coupling plate and second coupling plate, it connects into tool parallel layers stack structure up and down at regular intervals by insulation support body, and be fixed between the upper and lower ground plate, first coupling plate and second coupling plate be have an openend, the U-shaped sheet metal of a blind end and two parallel sides, first coupling plate and second coupling are arranged to arrange along the vertical plane mirror image, and make two parallel sides overlapping relatively; And
Several connectors are electrically connected with first coupling plate and the second coupling plate openend respectively.
Further, the spacing between the described first U-shaped sheet metal and the second U-shaped sheet metal is 3-10mm.
Further, the thickness of described first, second U-shaped sheet metal is 0.2-3mm.
Further, the length of two overlapping parallel sides of described U-shaped sheet metal is 0.5 times of free space wavelength of centre frequency.
Further, described insulation support body comprises a plastic sleeve and a plastic screw, and described U-shaped sheet metal two parallel sides cooperate described insulation support body to be provided with circular hole, cooperates this insulation support body to be provided with through hole on the described upper and lower metal ground plate.
Further, described U-shaped sheet metal openend cooperates described connector to be provided with perforate, and described metal ground plate down cooperates described connector to be provided with connecting hole.
By above-mentioned to description of the present utility model as can be known, compared with prior art, a kind of high-power wideband 3dB electric bridge of the present utility model has following beneficial effect: adopt the U-shaped sheet metal, can realize bigger power capacity than in the past pcb board material or cable; The radiofrequency signal of connector transmission is coupled by the spacing between two coupling plates, can realize broadband 3dB power division and 90 degree phase shifts; Adjust coupling plate size and and upper and lower metal ground plate between spacing can realize 460-860 full frequency band 90 ± 3 degree phase shift and 3 ± 0.5dB degrees of coupling, and voltage standing wave ratio is less than 1.1; Two the U-shaped sheet metal structure is simple, processing and manufacturing is easy, cost is low.
Description of drawings
Fig. 1 is a kind of high-power wideband 3dB electric bridge internal structure stereogram of the present utility model;
Fig. 2 is a kind of high-power wideband 3dB electric bridge internal structure vertical view of the present utility model;
Fig. 3 is the overall structure stereogram of a kind of high-power wideband 3dB electric bridge of the present utility model.
Embodiment
Below the utility model will be further described by embodiment.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of high-power wideband 3dB electric bridge comprises metal ground plate 10 and following metal ground plate 20, and it interconnects by metallic support post 30 and is parallel up and down relative; First coupling plate 40 and second coupling plate 50, it connects into tool parallel layers stack structure up and down at regular intervals by insulation support body 60, distance between the two is 3-10mm, first, second coupling plate 40,50 are and have an openend 41,51, one blind end 42,52 and two parallel sides 43,53 U-shaped sheet metal, thickness is 0.2-3mm, and be arranged to be spaced along the opposing dislocation of vertical plane openend, be positioned at, following metal ground plate 10, between 20, and make two parallel sides 43,53 is overlapping relatively, two overlapping parallel sides 43,53 total length is 0.5 times of free space wavelength of centre frequency, U-shaped sheet metal two parallel sides 43,53 coordinated insulation supporters 60 are provided with circular hole 431,531, on, following metal ground plate 10,20 coordinated insulation supporters 60 are provided with through hole 11,21, insulation support body 60 comprises plastic sleeve 61 and plastic support rods 62; Also include several connectors 70, openend 41,51 with first coupling plate 40 and second coupling plate 50 links to each other respectively, openend 41,51, be provided with perforate 411,511, following metal ground plate 20 cooperates perforate 411,511 to be provided with through hole 22, connector 70 is arranged in perforate 411,511 and through hole 22, makes the U-shaped sheet metal constitute with connector 70 and is electrically connected.
Under identical precondition, at 460MHz, 660MHz, 860MHz frequency band general 3dB electric bridge and the utility model are carried out test comparison respectively, obtain data such as following table 1, table 2, in the 460-860MHz frequency range, 3dB electric bridge phase place of the present utility model satisfies 90 ± 3 degree phase shift and 3 ± 0.5dB degrees of coupling, and voltage standing wave ratio is better than 1.2 conventional standing-wave ratios less than 1.1, and a kind of high-power wideband 3dB electric bridge with better machinery and electric property is provided.
Table 1 Comparative Examples test result
| Frequency | Phase place (degree) | The degree of coupling (dB) | Voltage standing wave ratio |
| 460MHz | 63.101 | 3.0680 | 1.4132 |
| 660MHz | 88.209 | 2.8860 | 1.0509 |
| 860MHz | 114.570 | 2.9310 | 1.3440 |
Table 2 the utility model test result
| Frequency | Phase place (degree) | The degree of coupling (dB) | Voltage standing wave ratio |
| 460MHz | 91.807 | 3.3130 | 1.0351 |
| 660MHz | 92.167 | 2.8260 | 1.0296 |
| 860MHz | 91.723 | 3.3690 | 1.0507 |
Above-mentioned only is an embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection range.
Claims (6)
1. a high-power wideband 3dB electric bridge is characterized in that: comprise
Last metal ground plate and following metal ground plate, it interconnects by the metallic support post and is parallel up and down relative;
First coupling plate and second coupling plate, it connects into tool parallel layers stack structure up and down at regular intervals by insulation support body, and be fixed between the upper and lower ground plate, first coupling plate and second coupling plate be have an openend, the U-shaped sheet metal of a blind end and two parallel sides, first coupling plate and second coupling are arranged to arrange along the vertical plane mirror image, and make two parallel sides overlapping relatively; And
Several connectors are electrically connected with first coupling plate and the second coupling plate openend respectively.
2. a kind of high-power wideband 3dB electric bridge as claimed in claim 1, it is characterized in that: the spacing between described first coupling plate and second coupling plate is 3-10mm.
3. a kind of high-power wideband 3dB electric bridge as claimed in claim 1, it is characterized in that: the thickness of described U-shaped sheet metal is 0.2-3mm.
4. a kind of high-power wideband 3dB electric bridge as claimed in claim 1 is characterized in that: the total length of two overlapping parallel sides of described U-shaped sheet metal is 0.5 times of free space wavelength of centre frequency.
5. a kind of high-power wideband 3dB electric bridge as claimed in claim 1, it is characterized in that: described insulation support body comprises a plastic sleeve and a plastic screw, described U-shaped sheet metal two parallel sides cooperate described insulation support body to be provided with circular hole, cooperate this insulation support body to be provided with through hole on the described upper and lower metal ground plate.
6. a kind of high-power wideband 3dB electric bridge as claimed in claim 1, it is characterized in that: described U-shaped sheet metal openend cooperates described connector to be provided with perforate, and described metal ground plate down cooperates described connector to be provided with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203139966U CN201562742U (en) | 2009-11-03 | 2009-11-03 | High-power broadband 3dB bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203139966U CN201562742U (en) | 2009-11-03 | 2009-11-03 | High-power broadband 3dB bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562742U true CN201562742U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203139966U Expired - Fee Related CN201562742U (en) | 2009-11-03 | 2009-11-03 | High-power broadband 3dB bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562742U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474734A (en) * | 2013-08-20 | 2013-12-25 | 京信通信技术(广州)有限公司 | Electric bridge |
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
| CN103904404A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3 dB electric bridge with mutual interference portions |
| CN103904400A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3dB bridge |
| CN103915670A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | Same frequency combiner with double-loop 3dB electrical bridge |
| CN103915668A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | Same-frequency combiner |
| CN103915671A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | 3dB electrical bridge with rectangular insulation bar |
| CN104022331A (en) * | 2014-04-08 | 2014-09-03 | 蓝小玲 | Co-frequency combiner with F-type 3dB bridge |
| CN104022326A (en) * | 2014-04-08 | 2014-09-03 | 钟小茹 | Co-frequency combiner |
| CN104078738A (en) * | 2014-04-08 | 2014-10-01 | 钟小茹 | Same-frequency combiner with holes |
| CN105024128A (en) * | 2015-08-20 | 2015-11-04 | 宝玲 | 3dB bridge |
-
2009
- 2009-11-03 CN CN2009203139966U patent/CN201562742U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474734A (en) * | 2013-08-20 | 2013-12-25 | 京信通信技术(广州)有限公司 | Electric bridge |
| CN104022326B (en) * | 2014-04-08 | 2016-08-03 | 国网山东省电力公司烟台市牟平区供电公司 | A kind of same frequency combiner |
| CN103904402B (en) * | 2014-04-08 | 2018-05-29 | 东莞唯度电子科技服务有限公司 | A kind of same frequency combiner with rectangle declutcher control lever 3dB electric bridges |
| CN104078738A (en) * | 2014-04-08 | 2014-10-01 | 钟小茹 | Same-frequency combiner with holes |
| CN103915670A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | Same frequency combiner with double-loop 3dB electrical bridge |
| CN103915668A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | Same-frequency combiner |
| CN103915671A (en) * | 2014-04-08 | 2014-07-09 | 吴俊伟 | 3dB electrical bridge with rectangular insulation bar |
| CN104022331A (en) * | 2014-04-08 | 2014-09-03 | 蓝小玲 | Co-frequency combiner with F-type 3dB bridge |
| CN104022326A (en) * | 2014-04-08 | 2014-09-03 | 钟小茹 | Co-frequency combiner |
| CN103904400A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3dB bridge |
| CN103904404A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3 dB electric bridge with mutual interference portions |
| CN103904404B (en) * | 2014-04-08 | 2016-04-20 | 滨州医学院 | A kind of 3dB electric bridge with portion of disturbing mutually |
| CN104022331B (en) * | 2014-04-08 | 2016-03-16 | 深圳市正弦波测试技术有限公司 | A kind of same frequency combiner with F type 3dB electric bridge |
| CN103915668B (en) * | 2014-04-08 | 2016-06-29 | 重庆市凡普特光电科技有限责任公司 | A kind of same frequency combiner |
| CN104078738B (en) * | 2014-04-08 | 2016-06-29 | 重庆市凡普特光电科技有限责任公司 | A kind of same frequency combiner with hollow hole |
| CN103904402A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | Identical-frequency combiner of 3 dB electric bridge with rectangular disengaging levers |
| CN103915671B (en) * | 2014-04-08 | 2018-05-29 | 东莞唯度电子科技服务有限公司 | A kind of 3dB electric bridges with rectangle partition rod |
| CN103904400B (en) * | 2014-04-08 | 2017-12-15 | 徐玉玉 | A kind of 3dB electric bridges |
| CN105024128B (en) * | 2015-08-20 | 2017-11-24 | 南安市鑫灿品牌运营有限公司 | A kind of 3dB electric bridges |
| CN105024128A (en) * | 2015-08-20 | 2015-11-04 | 宝玲 | 3dB bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20151103 |
|
| EXPY | Termination of patent right or utility model |