CN201556694U - Multilayer medium directional coupler - Google Patents
Multilayer medium directional coupler Download PDFInfo
- Publication number
- CN201556694U CN201556694U CN2009202471070U CN200920247107U CN201556694U CN 201556694 U CN201556694 U CN 201556694U CN 2009202471070 U CN2009202471070 U CN 2009202471070U CN 200920247107 U CN200920247107 U CN 200920247107U CN 201556694 U CN201556694 U CN 201556694U
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- layer
- metal tape
- coupling
- directional coupler
- dielectric layer
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Abstract
The utility model relates to a multilayer medium directional coupler which belongs to the technical field of radio frequency and microwave signal transmission, and comprises an upper medium layer, a middle medium layer and a lower medium layer which are laminated in turn, a transmission metal strap, one or two main coupling metal straps which are arranged on one side or two sides of the transmission metal strap, an auxiliary coupling metal strap and a grounding metal layer, wherein the transmission metal strap and the main coupling metal strap are arranged on the upper surface of the lower medium layer, the lower surface of the lower medium layer is provided with the grounding metal layer, the auxiliary coupling metal strap is arranged on the upper surface of the middle medium layer, the upper surface of the upper medium layer is provided with the grounding metal layer, and the grounding metal layer of the lower surface of the lower medium surface is communicated with the grounding metal layer on the upper surface of the upper medium layer. The multilayer medium directional coupler has the characteristics of high coupling directionality, excellent coupling flatness and big bearing power, and can achieve double-circuit bidirectional coupling, and has small volume and convenient installation and use.
Description
Technical field
The utility model belongs to radio frequency and microwave signal transmission technique field, the particularly design of directional coupler.
Background technology
Directional coupler is the multiport parts that the separating part transmission signals is used to monitor.Be used widely at radio frequency and microwave regime.High performance directional coupler wants that cube is little, little to the loss of transmission signals, the flatness of coupled signal and directivity will be got well and enough power capacities will be arranged.
Existing directional coupler mostly is the microstrip coupler of single-dielectric-layer greatly.Because microstrip directional coupler is by the narrow limit coupling of major-minor microstrip line, it is very weak to be coupled, and coupled section length hour can't realize stronger coupling.The length of strap line be generally the operating frequency wavelength 10%～25% between.In HF and VHF frequency range, the directional coupler operation wavelength is the rice magnitude, calculates according to 10% wavelength, and coupled section length is also in the decimetre magnitude, thereby the size lossy of directional coupler is big.Especially when the degree of coupling requirement of directional coupler is more weak (as 40dB), the directivity of microstrip directional coupler is difficult to reach instructions for use.
Summary of the invention
The purpose of this utility model is for overcoming the prior art weak point, design a kind of multilayer dielectricity directional coupler, have coupling directivity height, the coupling flatness is good, load power big, can also realize that two-path bidirectional coupling and volume urinate in the characteristics of installing and using.
A kind of multilayer dielectricity directional coupler of the utility model design, it is characterized in that, this directional coupler comprises last dielectric layer, medium layer and the following dielectric layer that stacks gradually, and transmission metal tape, is positioned at one of these transport tape one or both sides or two main coupling metal tapes, auxiliary coupling metal tape and ground metal layer; Wherein, transmission metal tape and main coupling metal tape be positioned at dielectric layer down above, ground metal layer is set below the following dielectric layer, auxiliary coupling metal tape be positioned at the medium layer above, ground metal layer is set above the last dielectric layer; Ground metal layer below the following dielectric layer is connected with the ground metal layer above the last dielectric layer.
Characteristics of the present utility model and beneficial effect:
1, adopt auxilliary coupling metal tape adjusting function index, effectively regulate directional coupler the degree of coupling, improve its directivity.
2, the auxilliary coupling metal tape of Cai Yonging only is the unsteady metal tape line of one deck, need not to be connected with main strap generation circuit with transport tape.
3, the length of strap only is 1% magnitude of operation wavelength, effectively reduces the volume of directional coupler and reduces cost of manufacture.
4, also can adopt two-way strap coupled transfer signal simultaneously, realize the function of two-path bidirectional directional coupler.
Description of drawings
Fig. 1 is the utility model directional coupler general structure longitudinal sectional view.
Fig. 2 is embodiment 1 structural representation of the utility model layer dielectric.
Fig. 3 is embodiment 2 structural representations of the utility model layer dielectric.
Fig. 4 is embodiment 1 structural representation of the utility model layer dielectric.
Embodiment
Reaching embodiment with reference to the accompanying drawings is described in detail as follows to the utility model:
A kind of multilayer dielectricity directional coupler of the utility model design, its structure as shown in Figure 1, this directional coupler comprises the last dielectric layer 1 that stacks gradually, medium layer 2 and following dielectric layer 3, article one, transmit metal tape 4, be positioned at one or two main coupling metal tapes 5 of these transport tape one or both sides, article one, auxiliary coupling metal tape 6, and ground metal layer 7, wherein, transmission metal tape 4 and main coupling metal tape 5 be positioned at dielectric layer 3 down above, ground metal layer 7 is set below the following dielectric layer 3, auxiliary coupling metal tape 6 be positioned at medium layer 2 above, above the last dielectric layer 1 ground metal layer is set; Ground metal layer below the following dielectric layer 3 and last dielectric layer 1 top ground metal layer is connected.
The structure of a kind of embodiment that transmits the main coupling of metal tape 4 and metal tape 5 of the present utility model as shown in Figure 2, wherein transmit metal tape 4 and be arranged on down the middle part of dielectric layer 3 upper surfaces, main coupling metal tape 5 is arranged on a side of transmission metal tape, and the two ends of transmission metal tape 4 are respectively signal input port 41 and signal output port 42; Main coupling metal tape 5 is respectively forward coupling port 51 and reverse coupled port 52 for two ends.
The structure of the embodiment of another kind of transmission metal tape 4 of the present utility model and two main coupling metal tapes 5 as shown in Figure 3, wherein transmit metal tape 4 and be arranged on down the middle part of dielectric layer 3 upper surfaces, the two ends of transmission metal tape 4 are respectively signal input port 41 and signal output port 42; Article two, main coupling metal tape 5 is arranged on the both sides of transport tape; Every main coupling metal tape 5 two ends are respectively forward coupling port 51 and reverse coupled port 52.
The example structure of auxiliary coupling metal tape 6 of the present utility model assists coupling metal tape 6 for being arranged on one section metal tape of medium layer 2 upper surface as shown in Figure 4.
Embodiment of the present utility model can adopt two single faces to apply the copper circuit printed panel and a two-sided deposited copper circuit printed panel is made, wherein a two-sided deposited copper circuit printed panel surface makes transmission metal tape 4 and main coupling metal tape 5, another surperficial copper foil layer is as ground metal layer 7, and intermediate medium is following dielectric layer 3; A single face applies the copper circuit printed panel as medium layer 2, and its surperficial copper foil layer is made auxiliary coupling metal tape 6; Another piece single face applies the copper circuit printed panel directly as last dielectric layer 1 and ground metal layer.Laminate after three blocks of plates are made and be integral, and upper and lower two-layer ground metal layer is communicated with get final product.
Claims (4)
1. multilayer dielectricity directional coupler, it is characterized in that this directional coupler comprises the last dielectric layer, medium layer and the following dielectric layer that stack gradually, transmission metal tape, be positioned at one of these transport tape one or both sides or two main coupling metal tapes, auxiliary coupling metal tape and ground metal layer; Wherein, transmission metal tape and main coupling metal tape be positioned at dielectric layer down above, ground metal layer is set below the following dielectric layer, auxiliary coupling metal tape be positioned at the medium layer above, ground metal layer is set above the last dielectric layer; Ground metal layer below the following dielectric layer is connected with the ground metal layer above the last dielectric layer.
2. multilayer dielectricity directional coupler according to claim 1, it is characterized in that, described transmission metal tape is arranged on down the middle part of dielectric layer upper surface, a described main coupling metal tape is arranged on a side of transmission metal tape, and the two ends of transmission metal tape are respectively signal input port and signal output port; The two ends of main coupling metal tape are respectively forward coupling port and reverse coupled port.
3. multilayer dielectricity directional coupler according to claim 1 is characterized in that described transmission metal tape is arranged on down the middle part of dielectric layer upper surface, and the two ends of transmission metal tape are respectively signal input port and signal output port; Described two main coupling metal tapes are arranged on the both sides of transmission metal tape; Every main coupling metal tape two ends are respectively forward coupling port and reverse coupled port.
4. as multilayer dielectricity directional coupler as described in the claim 1,2 or 3, it is characterized in that described auxiliary coupling metal tape is the one section metal tape that is arranged on medium layer upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471070U CN201556694U (en) | 2009-11-20 | 2009-11-20 | Multilayer medium directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471070U CN201556694U (en) | 2009-11-20 | 2009-11-20 | Multilayer medium directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556694U true CN201556694U (en) | 2010-08-18 |
Family
ID=42616383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202471070U Expired - Fee Related CN201556694U (en) | 2009-11-20 | 2009-11-20 | Multilayer medium directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556694U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938486A (en) * | 2012-11-19 | 2013-02-20 | 南京国博电子有限公司 | Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge |
| CN103311630A (en) * | 2012-12-29 | 2013-09-18 | 南京理工大学 | C-waveband ultra-wideband multi-octave miniature directional coupler |
| WO2018039898A1 (en) * | 2016-08-30 | 2018-03-08 | 海能达通信股份有限公司 | Radio transmitter and miniaturized directional coupler thereof |
-
2009
- 2009-11-20 CN CN2009202471070U patent/CN201556694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938486A (en) * | 2012-11-19 | 2013-02-20 | 南京国博电子有限公司 | Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge |
| CN103311630A (en) * | 2012-12-29 | 2013-09-18 | 南京理工大学 | C-waveband ultra-wideband multi-octave miniature directional coupler |
| WO2018039898A1 (en) * | 2016-08-30 | 2018-03-08 | 海能达通信股份有限公司 | Radio transmitter and miniaturized directional coupler thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUNWAVE COMMUNICATIONS CO., LTD. Free format text: FORMER OWNER: BEIJING RFA TECHNOLOGY CO., LTD. Effective date: 20120620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100080 HAIDIAN, BEIJING TO: 311153 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120620 Address after: 311153, Zhejiang, Hangzhou, Binjiang District Torch Road, No. 581 three-dimensional building (High-tech Zone) Patentee after: Sunwave Communication Co., Ltd. Address before: 100080, Beijing, Haidian District, north of information base on the ground, No. 5, ground Brilliant International Center, room 422, room 4 Patentee before: Beijing RFA Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20161120 |