CN201134491Y - Probe converting microstrip to wave-guide, amplifier and digital microwave outdoor unit - Google Patents
Probe converting microstrip to wave-guide, amplifier and digital microwave outdoor unit Download PDFInfo
- Publication number
- CN201134491Y CN201134491Y CNU200720173686XU CN200720173686U CN201134491Y CN 201134491 Y CN201134491 Y CN 201134491Y CN U200720173686X U CNU200720173686X U CN U200720173686XU CN 200720173686 U CN200720173686 U CN 200720173686U CN 201134491 Y CN201134491 Y CN 201134491Y
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- waveguide
- probe
- circuit
- little band
- optical waveguide
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Abstract
The utility model discloses a micro-strip waveguide probe, an amplifier and a digital microwave outdoor unit. The micro-strip waveguide probe is a rectangular sheet with side length of 0.9-1.1 millimeters, micro-strip line is connected with guide wave via the probe, the cross section of the waveguide is a rectangle, wherein one side of the rectangle is provided with an opening of 1.5-2.5 millimeters, the micro-strip line is connected with the micro-strip waveguide probe via the opening, and the distance between the micro-strip waveguide probe and the long side of the rectangle is between 1.0-1.2 millimeters. A PDH digital microwave outdoor unit with 18 GHz comprises a high power amplifier, a low noise amplifier and a radio frequency local ossification unit, wherein each circuit of the radio frequency local ossification unit is disposed in an individual cavity structure. The micro-strip waveguide probe, amplifier and digital microwave outdoor unit have strong electro magnetic interference resistant capacity and electromagnetic compatibility and simple and compact structure.
Description
Technical field
The utility model relates to a kind of digital microwave telecommunication unit, and relating in particular to a kind of little band changes optical waveguide probe and amplifier and digital microwave outdoor unit.
Background technology
In digital microwave telecommunication, often need to be connected between microstrip line and the waveguide.
In the prior art, the transformational structure complexity between microstrip line and the waveguide, inconvenient debugging.
Summary of the invention
The purpose of this utility model provides a kind of little band changes optical waveguide probe and little band commentaries on classics waveguide wire and high power amplifier and low noise amplifier and digital microwave outdoor unit.
The purpose of this utility model is achieved through the following technical solutions:
Little band of the present utility model changes optical waveguide probe, and this probe is rectangular tab, and the length of side of described rectangular tab is the 0.9-1.1 millimeter.
Little band of the present utility model changes waveguide wire, comprise microstrip line, waveguide, described microstrip line changes optical waveguide probe with waveguide by above-mentioned little band and is connected, described little band changes optical waveguide probe and is embedded in the described waveguide, the cross section of described waveguide is a rectangle, one side of described rectangle has opening, and described little band changes optical waveguide probe and is connected with described microstrip line by described opening.
High power amplifier of the present utility model comprises that high power amplifies chip, comprises that also above-mentioned little band changes waveguide wire, and described little band changes waveguide wire and comprises microstrip line, waveguide, and an end of described microstrip line amplifies chip with described high power and is connected; The other end changes optical waveguide probe by above-mentioned little band and is connected with described waveguide.
Low noise amplifier of the present utility model comprises that low noise amplifies chip, comprises that also above-mentioned little band changes waveguide wire, and described little band changes waveguide wire and comprises microstrip line, waveguide, and an end of described microstrip line amplifies chip with described low noise and is connected; The other end changes optical waveguide probe by above-mentioned little band and is connected with described waveguide.
Digital microwave outdoor unit of the present utility model comprises above-mentioned high power amplifier and above-mentioned low noise amplifier, also comprises the radio-frequency (RF) local oscillator unit.
The technical scheme that is provided by above-mentioned the utility model as can be seen, little band described in the utility model changes optical waveguide probe and high power amplifier and low noise amplifier and digital microwave outdoor unit, because it is rectangular tab that little band changes optical waveguide probe, the length of side of rectangular tab is the 0.9-1.1 millimeter; Microstrip line changes optical waveguide probe with waveguide by above-mentioned little band and is connected.Have easy to connect, simple in structure, the advantage that is easy to debug.
Description of drawings
Fig. 1 is the structural representation that the little band of the utility model changes optical waveguide probe;
Fig. 2 is the structural representation of the utility model high power amplifier;
Fig. 3 is the structural representation of the utility model low noise amplifier;
Fig. 4 is the structural representation of the utility model digital microwave outdoor unit;
Fig. 5 is the structural representation of radio-frequency (RF) local oscillator unit in the utility model.
Embodiment
Little band of the present utility model changes optical waveguide probe, its preferable embodiment as shown in Figure 1, this probe 2 be a rectangular tab, the length of side of rectangular tab is the 0.9-1.1 millimeter, can be 0.9,1.0,1.1 millimeter etc., also can be size of other needs.This probe 2 can be square, also can be for rectangle etc.
Little band of the present utility model changes waveguide wire, and its preferable embodiment comprises microstrip line 3, waveguide 1 as shown in Figure 1, and microstrip line 3 changes optical waveguide probe 2 with waveguide 1 by above-mentioned little band and is connected.
The cross section of waveguide 1 can be rectangle, one side rectangle have an opening 4, little band changes optical waveguide probe 2 and is embedded in the waveguide 1, one side little band changes optical waveguide probe 2 being connected with microstrip line 3 by opening 4 towards opening 4.
The distance that little band changes the rectangular long limit of optical waveguide probe 2 distances is the 1.0-1.2 millimeter, can be 1.0,1.1,1.2 millimeters, also can be other size as required.
Little band commentaries on classics optical waveguide probe is 3.8 millimeters apart from the distance of waveguide short face.
High power amplifier of the present utility model, its preferable embodiment comprise that high power amplifies chip 5 as shown in Figure 2, also comprise microstrip line 3, waveguide 1 among Fig. 1, and an end of microstrip line 3 amplifies chip 5 with high power and is connected; The other end changes optical waveguide probe 2 with little band and is connected.
Low noise amplifier of the present utility model, its preferable embodiment comprise that low noise amplifies chip 6 as shown in Figure 3, also comprise microstrip line 3, waveguide 1 among Fig. 1, and an end of microstrip line 3 amplifies chip 5 with low noise and is connected; The other end changes optical waveguide probe 2 with little band and is connected.
Digital microwave outdoor unit of the present utility model, its preferable embodiment comprise above-mentioned high power amplifier (high power amplifier) and low noise amplifier (LNA) as shown in Figure 4, also comprise the radio-frequency (RF) local oscillator unit, comprise sending out local oscillator and receiving local oscillator.
As shown in Figure 5, the radio-frequency (RF) local oscillator unit comprises digital PLL circuit, voltage-controlled oscillator circuit, first radio frequency amplifying circuit, frequency multiplier circuit, rf filtering circuit, second radio frequency amplifying circuit, and each circuit is in respectively among the independent cavity body structure.
Specific embodiment is an example with 18GHz PDH (Plesiochronous Digital Hierarchy PDH (Pseudo-synchronous Digital Hierarchy)) digital microwave radio frequency outdoor unit:
Referring to Fig. 4, the signal that comes from indoor unit at first passes through control unit; Link to each other with intermediate frequency unit after treatment; Intermediate frequency unit will be received and dispatched intermediate frequency separately.Sending out intermediate frequency directly is modulated on the local oscillator; Sending out local oscillation signal launches through too high power amplifier, duplexer, waveguide, antenna.18GHz digital microwave signal from antenna receives enters LNA through duplexer, enters frequency mixer then and receives the local oscillation signal mixing, and the receipts intermediate frequency that mixing is come out enters intermediate frequency unit, enters indoor unit through control unit then.
Referring to Fig. 2, the High Power Amplifier Unit of digital microwave outdoor unit, the emission frequency signal from a local oscillator is come behind high power amplifier chip 5, enters waveguide 1 through little band commentaries on classics optical waveguide probe 2 again and launches.
Referring to Fig. 3, the low noise amplifier unit of digital microwave outdoor unit, the digital microwave signal that receives from antenna enters The low noise amplifier chip 6 from waveguide 1 through little band commentaries on classics optical waveguide probe 2, enter frequency mixer through mirror filter then, carry out mixing with the receipts local oscillation signal, the receipts intermediate-freuqncy signal that mixing is come out enters intermediate frequency unit through intermediate frequency amplifier.
18GHz digital microwave unit adopts WR42 (the being BJ220) waveguide of standard to transmit, and the length in the cross section of WR42 waveguide is 10.668mm, and wide is 4.318mm.Little band change optical waveguide probe length and wide be respectively 1mm, the center of little band commentaries on classics optical waveguide probe and the center on the long limit of waveguide are on a horizontal line, little band commentaries on classics optical waveguide probe is 1.1mm apart from the distance on the long limit of waveguide, and little band commentaries on classics optical waveguide probe links to each other with radio-frequency devices by little band radio frequency line of 50 ohm.Opened an opening that 2mm is wide in the heart in the long limit of waveguide, so that allow 50 ohm radio frequency microstrip line pass through, the base material that microstrip circuit adopted is the thick sheet material of 0.3mm.
The structure that the little band of 18GHz digital microwave changes optical waveguide probe, can comprise three layers: the upper strata is the cavity of the containment device of aluminium matter, and the centre is the micro belt board of welding device, and lower floor is the cover plate of aluminium matter.The wave-guide cavity wave degree of depth of upper strata cavity is 3.8mm.In the long limit of wave-guide cavity wave, have a groove that 2mm is wide, 1mm is dark in the heart, so that allow 50 ohm radio frequency microstrip line pass through.
The radio-frequency (RF) local oscillator unit of 18GHz PDH digital microwave outdoor unit, comprise digital PLL circuit, voltage-controlled oscillator circuit, first radio frequency amplifying circuit, N frequency multiplier circuit, rf filtering circuit, second radio frequency amplifying circuit, described circuit is linked in sequence, described each circuit is in respectively among the independent cavity body structure, interconnects by little groove between each cavity.Specifically be that digital PLL circuit links to each other with voltage-controlled oscillator circuit by little groove; Voltage-controlled oscillator circuit links to each other with first radio frequency amplifying circuit by little groove; First radio frequency amplifying circuit links to each other with N frequency multiplier circuit by little groove; The frequency multiplier circuit links to each other with the radio-frequency filter circuit by little groove; The radio-frequency filter circuit links to each other with second radio frequency amplifier by little groove.Make the ability of circuit anti-electromagnetic interference capability, electromagnetic compatibility strengthen; And structure is simpler, compacter.
Wherein, the N frequency multiplier circuit can be two frequency multiplier circuits, trebling circuit, quadruplicated frequency circuit etc.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.
Claims (10)
1, a kind of little band changes optical waveguide probe, it is characterized in that, this probe is rectangular tab, and the length of side of described rectangular tab is the 0.9-1.1 millimeter.
2, little band according to claim 1 changes optical waveguide probe, it is characterized in that, this probe is square, and the described foursquare length of side is 1 millimeter.
3, a kind of little band changes waveguide wire, comprise microstrip line, waveguide, it is characterized in that, described microstrip line changes optical waveguide probe with waveguide by claim 1 or 2 described little bands and is connected, described little band changes optical waveguide probe and is embedded in the described waveguide, the cross section of described waveguide is a rectangle, one side described rectangle have an opening, described little band changes optical waveguide probe and is connected with described microstrip line by described opening.
4, little band according to claim 3 changes waveguide wire, it is characterized in that, the cross section of described waveguide is a rectangle, described opening is opened the center on described rectangular long limit, the width of described opening is the 1.5-2.5 millimeter, and the distance that described little band changes the described rectangular long limit of optical waveguide probe distance is the 1.0-1.2 millimeter.
5, little band according to claim 3 changes waveguide wire, it is characterized in that, the distance that described little band changes the short circuit face of the described waveguide of optical waveguide probe distance is 3.8 millimeters.
6, a kind of high power amplifier, comprise that high power amplifies chip, it is characterized in that, comprise that also claim 3,4 or 5 described little bands change waveguide wire, described little band changes waveguide wire and comprises microstrip line, waveguide, and an end of described microstrip line amplifies chip with described high power and is connected; The other end changes optical waveguide probe by claim 1 or 2 described little bands and is connected with described waveguide.
7, a kind of low noise amplifier, comprise that low noise amplifies chip, it is characterized in that, comprise that also claim 3,4 or 5 described little bands change waveguide wire, described little band changes waveguide wire and comprises microstrip line, waveguide, and an end of described microstrip line amplifies chip with described low noise and is connected; The other end changes optical waveguide probe by claim 1 or 2 described little bands and is connected with described waveguide.
8, a kind of digital microwave outdoor unit, it is characterized in that, comprise described high power amplifier of claim 6 and the described low noise amplifier of claim 7, described high power amplifier and low noise amplifier are located at respectively on the transmitter unit and receiving element of described digital microwave outdoor unit.
9, digital microwave outdoor unit according to claim 8, it is characterized in that, also comprise the radio-frequency (RF) local oscillator unit, described radio-frequency (RF) local oscillator unit comprises digital PLL circuit, voltage-controlled oscillator circuit, first radio frequency amplifying circuit, frequency multiplier circuit, rf filtering circuit, second radio frequency amplifying circuit, described each circuit is in respectively among the independent cavity body structure, and connects successively in the following order by the little groove between the described independent cavity body structure:
Digital PLL circuit--voltage-controlled oscillator circuit--first radio frequency amplifying circuit--frequency multiplier circuit--rf filtering circuit--second radio frequency amplifying circuit.
10, digital microwave outdoor unit according to claim 8 is characterized in that, this outdoor unit is a 18GHz PDH digital microwave radio frequency unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173686XU CN201134491Y (en) | 2007-10-18 | 2007-10-18 | Probe converting microstrip to wave-guide, amplifier and digital microwave outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173686XU CN201134491Y (en) | 2007-10-18 | 2007-10-18 | Probe converting microstrip to wave-guide, amplifier and digital microwave outdoor unit |
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| Publication Number | Publication Date |
|---|---|
| CN201134491Y true CN201134491Y (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720173686XU Expired - Fee Related CN201134491Y (en) | 2007-10-18 | 2007-10-18 | Probe converting microstrip to wave-guide, amplifier and digital microwave outdoor unit |
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| CN (1) | CN201134491Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079340A1 (en) * | 2010-12-16 | 2012-06-21 | 中兴通讯股份有限公司 | Interface conversion device and microwave communication equipment |
| CN109884562A (en) * | 2019-03-29 | 2019-06-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Difference magnetic field detection module and magnet field probe |
| CN109884561A (en) * | 2019-03-29 | 2019-06-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Magnetic field detection module and magnet field probe |
| CN110095656A (en) * | 2019-05-27 | 2019-08-06 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Detecting module and probe |
| CN110261756A (en) * | 2019-05-31 | 2019-09-20 | 惠州市德赛西威汽车电子股份有限公司 | The transformational structure of millimetre-wave radar circuit board radio frequency testing |
-
2007
- 2007-10-18 CN CNU200720173686XU patent/CN201134491Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079340A1 (en) * | 2010-12-16 | 2012-06-21 | 中兴通讯股份有限公司 | Interface conversion device and microwave communication equipment |
| CN109884562A (en) * | 2019-03-29 | 2019-06-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Difference magnetic field detection module and magnet field probe |
| CN109884561A (en) * | 2019-03-29 | 2019-06-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Magnetic field detection module and magnet field probe |
| CN110095656A (en) * | 2019-05-27 | 2019-08-06 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Detecting module and probe |
| CN110261756A (en) * | 2019-05-31 | 2019-09-20 | 惠州市德赛西威汽车电子股份有限公司 | The transformational structure of millimetre-wave radar circuit board radio frequency testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20121018 |