CN201146505Y - 13 GHz PDH microwave transmitting and receiving equipment as well as outdoor unit thereof - Google Patents
13 GHz PDH microwave transmitting and receiving equipment as well as outdoor unit thereof Download PDFInfo
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- CN201146505Y CN201146505Y CNU2008200787731U CN200820078773U CN201146505Y CN 201146505 Y CN201146505 Y CN 201146505Y CN U2008200787731 U CNU2008200787731 U CN U2008200787731U CN 200820078773 U CN200820078773 U CN 200820078773U CN 201146505 Y CN201146505 Y CN 201146505Y
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Abstract
The utility model discloses a 13GHz PHD microwave transceiver and an outdoor unit thereof, comprising a transmit unit and a receiving unit. The transceiver comprises a plurality of cavities; the neighboring cavities are communicated with each other by grooves; a circuit module is arranged in the cavity. The circuit modules in different cavities are mutually and electrically connected by the grooves. The whole machine module decomposition takes the working frequency as the principle, puts the circuit modules of a local oscillator amplifying circuit, a frequency multiplier, a filter and a mixer on a printed board and utilizes the cavity to divide every unit circuit. The whole machine structure is simplified and the production cost and the modulation complexity are reduced, so the transceiver and the outdoor unit of the utility model are suitable for mass production.
Description
Technical field:
The utility model relates to a kind of digital microwave telecommunication technology, relates in particular to a kind of 13GHz PDH microwave transmitting and receiving equipment and outdoor unit thereof.
Background technology:
Digital microwave telecommunication itself is a kind of conventional art, but microwave circuit is owing to be not easy accurate emulation and difficult design, cause later stage factory test workload to increase, in line with the consideration that is easy to debug, usually circuit is divided into a plurality of parts by function, cause machine volume very large, complex structure, processing cost height.
Summary of the invention:
The purpose of this utility model provides 13GHz PDH microwave transmitting and receiving equipment and the outdoor unit thereof that a kind of structure is single, production cost is low, the accent survey is simple, be applicable to production in enormous quantities.
The purpose of this utility model is achieved through the following technical solutions:
The digital microwave transceiver of 13GHz PDH of the present utility model, comprise transmitter unit, receiving element, it is characterized in that, described transceiver comprises a plurality of cavitys, pass through the mutual UNICOM of groove between the adjacent cavity, be provided with circuit module in the described cavity, be electrically connected mutually by described groove between the circuit module in the different cavitys, described circuit module comprises one or more in the following circuit module:
Phase-locked loop circuit, voltage controlled oscillator, radio frequency amplifier, two frequency multiplier circuits, filter;
The length of this digital microwave telecommunication transceiver is smaller or equal to 136mm, and width is smaller or equal to 50mm.
The technical scheme that is provided by above-mentioned the utility model as can be seen, 13GHzPDH digital microwave transceiver described in the utility model, use a plurality of independently cavitys, communicate with one another by groove between the adjacent cavity, utilize cavity to cut apart each element circuit, the transceiver that several part of module of original needs are constituted is reduced to a single module, makes production cost and transfers the survey complexity to reduce greatly, is applicable to production in enormous quantities.
Description of drawings:
Fig. 1 is the theory diagram of the utility model 13GHz PDH microwave transmitting and receiving equipment;
Fig. 2 is the circuit cloth version schematic diagram of the utility model 13GHz PDH microwave transmitting and receiving equipment;
Fig. 3 is the structural representation of the specific embodiment of the mirror filter in the utility model;
Fig. 4 is the structural representation of the specific embodiment of the parallel coupling filter in the utility model.
Embodiment:
The utility model 13GHz PDH (the Plesiochronous DigitalHierarchy of plesiochronous digital system) digital microwave transceiver and outdoor unit thereof, its preferable embodiment comprises transmitter unit, receiving element as shown in Figure 1.Wherein, transmitter unit comprises sends out a local oscillator, high power amplifier, sends out a local oscillator and comprises voltage controlled oscillator, radio frequency amplifier, power divider, varactor doubler, analog line driver etc., sends out between local oscillator and the high power amplifier to be connected by microstrip line; Receiving element comprises receives local oscillator, frequency mixer, mirror filter, low noise amplifier, receive local oscillator and comprise voltage controlled oscillator, buffer amplifier, varactor doubler, amplifier, parallel coupling filter etc., receive between local oscillator and the frequency mixer and frequency mixer and low noise amplifier between be connected by microstrip line.
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 with the sending and receiving intermediate frequency is separately sent out intermediate frequency and directly is modulated on the local oscillator; Sending out local oscillation signal launches through too high effect and duplexer.The 13GHz digital microwave signal that 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.
Wherein intermediate frequency unit comprises dielectric filter, and the centre frequency of dielectric filter is 13GHz.
As shown in Figure 2,13GHz PDH digital microwave digital microwave telecommunication transceiver comprises a plurality of cavitys, pass through the mutual UNICOM of groove between the adjacent cavity, be provided with circuit module in the described cavity, be electrically connected mutually by described groove between the circuit module in the different cavitys, can establish in the following circuit module one or more in each cavity: phase-locked loop circuit, voltage controlled oscillator, radio frequency amplifier, two frequency multiplier circuits, filter.
The length of this transceiver is smaller or equal to 136mm, and width is smaller or equal to 50mm.Comprise six cavitys, the length that can make digital microwave transceiver external dimensions is smaller or equal to 136mm, and width is smaller or equal to 50mm.
The left-half of cloth domain is a radiating portion of the present utility model, modulation signal (also comprising locking signal and latch voltage) enters from emission SMA seat 7, through voltage controlled oscillator (VCO) 8 and amplifier, ingoing power distributor 9, through behind the distributor 9 wherein one road signal be used to indicate lockin signal, another road signal enters varactor doubler 10 by amplifier, amplifies and varactor doubler 10 via one-level again, ingoing power driver 11 is launched through power amplifier 12 again.
The right half part of cloth domain is a receiving unit of the present utility model, the digital microwave signal that receives enters by receiving SMA seat 1, by two-stage low noise amplifier 2, mirror filter 3, arrive frequency mixer 4, the receipts intermediate-freuqncy signal that mixing is come out finally enters intermediate frequency unit by the MCX seat through intermediate-frequency filter and intermediate frequency amplifier again.
Receipts local oscillator wherein partly comprises voltage controlled oscillator 13, buffer amplifier, and varactor doubler 14 and parallel coupling filter 15 are linked in sequence.
Between the receipts local oscillator and receiving element in the utility model, and a local oscillator is connected by microstrip line with transmitter unit.
As shown in Figure 3, the mirror filter in the utility model, in the receiving system of digital microwave equipment, need be with the image signal filtering, to improve the noiseproof feature of receiving system.Mirror filter is made up of the microstrip line that is printed on the radio frequency sheet material.The microstrip line that comprises main line (main transmission line) 36 and four root termination open circuit is formed, and these four microstrip lines are respectively first support arm, 37, the second support arms, 38, the three support arms 39, and the 4th support arm 310.Wherein, first support arm 37 and second support arm 38 can be set in parallel in a side of main line 36, long and wide can be identical; The 3rd support arm 39 and the 4th support arm 310 can be set in parallel in the opposite side of main line 36, long and wide can be identical.Four microstrip lines can be vertical with main line 36, and first support arm 37 and the 3rd support arm 39 can overlap at the center line of vertical direction; Second support arm 38 and the 4th support arm 310 can overlap at the center line of vertical direction.Main transmission line is the microstrip line of 50 ohm of impedances.
In the specific embodiment of the mirror filter in the utility model, the width of main line 36 is about 0.50mm; The length of first support arm 37 and second support arm 38 is about 2.47mm; The width of first support arm 37 and second support arm 38 is about 0.30mm; The length of the 3rd support arm 39 and the 4th support arm 310 is about 4.48mm; The width of the 3rd support arm 39 and the 4th support arm 310 is about 0.30mm; Distance between distance between first support arm 37 and second support arm 38 and the 3rd support arm 39 and the 4th support arm 310 can be about 2.70mm.Also can set as required.
The above-mentioned base material that microstrip circuit adopted can be the thick radio frequency sheet material of 0.3mm, and its dielectric constant is 3.48 method/rice.
As shown in Figure 4, the parallel coupling filter in the utility model in the receiving system of digital microwave equipment, needs to be higher than the high-frequency signal filtering of required frequency, to improve performance of receiving system.Parallel coupling filter is made up of the 3 rank Coupled Miccrostrip Lines that are printed on the rf board, be coupled by parallel coupled line between two microstrip lines, comprise first main line 41, second main line 49 and seven microstrip lines compositions, these seven microstrip lines are respectively first detail 42, second detail, 43, the three details, 44, the four details 45, the 5th detail 46, the six details 47 and the 7th detail 48.Wherein first detail 42 and second detail 43 can be arranged on the both sides of first main line 41 and vertical with first main line 41, and width can be identical, and first detail 42 and second detail 43 center line in the horizontal direction can overlap.The 3rd detail 44 can be provided with perpendicular to second detail 43, and the 4th detail 45, the 5th detail 46, the 6th detail 47 can be parallel to the 3rd detail 44 and be crisscross arranged.The 6th detail 47 and the 7th detail 48 can be arranged on the both sides of second main line 49 and vertical with second main line 9, and width can be identical, and the 6th detail 47 and the 7th detail 48 can overlap at the center line of vertical direction.Main transmission line can be the microstrip line of 50 ohm of impedances.
The specific embodiment of the parallel coupling filter in the utility model, the width of first main line 41 is about 0.50mm; The width of first detail 42 and second detail 43 is about 0.25mm, and first detail, 42 length are about 2.80mm, about second detail, 43 length 1.45mm; The width of the 3rd detail 44, the 4th detail 45, the 5th detail 46 is respectively about 0.20mm, the 3rd detail 44 length are 3.00mm, the 4th detail 45 and the 5th detail 46 length are about 7.80mm, wherein, the coupling length of the 4th detail 45 and the 3rd detail 44 is about 3.00mm, the coupling length of the 5th detail 46 and the 4th detail 45 is about 4.80mm, and the coupling length of the 6th detail 47 and the 5th detail 46 is about 3.00mm; Distance between distance between distance between the 4th detail 45 and the 3rd detail 44, the 5th detail 46 and the 4th detail 45, the 6th detail 47 and the 5th detail 46 is about 0.20mm; The width of the 6th detail 47 and the 7th detail 48 is about 0.25mm, and the length of the 6th detail 47 is about 5.00mm, and the length of the 7th 48 joint is 2.80mm; The width of second main line 49 can be for about 0.40mm.Also can set as required.
The above-mentioned base material that microstrip circuit adopted can be the thick radio frequency sheet material of 0.3mm, and its dielectric constant is 3.48 method/rice.
The utility model 13GHz PDH digital microwave transceiver can be applied in the outdoor unit of digital microwave of 13GHz, also can be applied in other the digital microwave product, make structure simpler, compacter, volume is littler, also make production cost and accent survey complexity and reduce greatly, be applicable to production in enormous quantities.
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 (9)
1. the digital microwave transceiver of a 13GHz PDH, comprise transmitter unit, receiving element, it is characterized in that, described transceiver comprises a plurality of cavitys, pass through the mutual UNICOM of groove between the adjacent cavity, be provided with circuit module in the described cavity, be electrically connected mutually by described groove between the circuit module in the different cavitys, described circuit module comprises one or more in the following circuit module:
Phase-locked loop circuit, voltage controlled oscillator, radio frequency amplifier, two frequency multiplier circuits, filter;
The length of this digital microwave telecommunication transceiver is smaller or equal to 136mm, and width is smaller or equal to 50mm.
2. 13GHz PDH digital microwave transceiver according to claim 1, it is characterized in that, described transmitter unit comprises sends out local oscillator, high power amplifier, described local oscillator comprises voltage controlled oscillator, radio frequency amplifier, power divider, varactor doubler, analog line driver, is connected by microstrip line between described local oscillator and the high power amplifier.
3. 13GHz PDH digital microwave transceiver according to claim 1, it is characterized in that, described receiving element comprises receives local oscillator, frequency mixer, mirror filter, low noise amplifier, described receipts local oscillator comprises voltage controlled oscillator, buffer amplifier, varactor doubler, amplifier, parallel coupling filter, is connected by microstrip line between described receipts local oscillator and the described frequency mixer and between described frequency mixer and described mirror filter, the low noise amplifier.
4. according to claim 2 or 3 described 13GHz PDH digital microwave transceivers, it is characterized in that described transmitter unit and described receiving element are arranged on the same rf board, described rf board inside is divided into six cavitys.
5. 13GHz PDH digital microwave transceiver according to claim 3, it is characterized in that, described mirror filter comprises main line, be connected with the microstrip line of 4 root termination open circuit on the described main line, be respectively first support arm, second support arm, the 3rd support arm, the 4th support arm, wherein, described first support arm and second support arm are set in parallel in described main line one side; Described the 3rd support arm and the 4th support arm are set in parallel in the opposite side of described main line; The central lines of described first support arm and the 3rd quilt; The central lines of described second support arm and the 4th support arm.
6. 13GHz PDH digital microwave transceiver according to claim 5 is characterized in that described main line width is 0.50mm; The length of described first support arm and the second detail arm is respectively 2.47mm; The width of described first support arm and second support arm is respectively 0.30mm; The length of described the 3rd support arm and the 4th support arm is respectively 4.48mm; The width of described the 3rd support arm and the 4th support arm is respectively 0.30mm; Distance between distance between described first support arm and second support arm and described the 3rd support arm and the 4th support arm is respectively 2.70mm.
7. 13GHz PDH digital microwave transceiver according to claim 3, it is characterized in that, described parallel coupling filter is made up of 3 rank Coupled Miccrostrip Lines, comprise first main line, second main line and seven microstrip lines, described seven microstrip lines are respectively first detail, second detail, the 3rd detail, the 4th detail, the 5th detail, the 6th detail and the 7th detail, described first detail and second detail are separately positioned on the both sides of described first main line and vertical with first main line, and described first detail and second detail central lines in the horizontal direction; Described the 3rd detail is perpendicular to the described second detail setting; Described the 4th detail, the 5th detail, the 6th detail are parallel to described the 3rd detail respectively and are crisscross arranged; Described the 6th detail and the 7th detail are separately positioned on the both sides of described second main line and vertical with second main line, and described the 6th detail and the 7th detail are in the central lines of vertical direction.
8. 13GHz PDH digital microwave transceiver according to claim 7, it is characterized in that, the width of described first main line is 0.50mm, the width of described first detail and second detail is 0.25mm, the length of described first detail is 2.80mm, and the described second detail length is 1.45mm, and the width of described the 3rd detail, the 4th detail, the 5th detail is respectively 0.20mm, the length of described the 3rd detail is 3.00mm, and described the 4th detail and the 5th detail length are respectively 7.80mm; The coupling length of described the 4th detail and the 3rd detail is 3.00mm, the coupling length of described the 5th detail and the 4th detail is 4.80mm, the coupling length of described the 6th detail and the 5th detail is 3.00mm, distance between described the 4th detail and the 3rd detail, distance between the 5th detail and the 4th detail, distance between the 6th detail and the 5th detail is 0.20mm respectively, the width of described the 6th detail and the 7th detail is respectively 0.25mm, the length of described the 6th detail is 5.00mm, the length of described the 7th detail is 2.80mm, and the width of described second main line is 0.40mm.
9. the outdoor unit of a 13GHz PDH digital microwave, it is characterized in that, comprise each described 13GHz PDH digital microwave transceiver of claim 1 to 8, also comprise control unit, duplexer, intermediate frequency unit, described intermediate frequency unit comprises dielectric filter, and the centre frequency of described dielectric filter is 13GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200787731U CN201146505Y (en) | 2008-01-28 | 2008-01-28 | 13 GHz PDH microwave transmitting and receiving equipment as well as outdoor unit thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200787731U CN201146505Y (en) | 2008-01-28 | 2008-01-28 | 13 GHz PDH microwave transmitting and receiving equipment as well as outdoor unit thereof |
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| Publication Number | Publication Date |
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| CN201146505Y true CN201146505Y (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200787731U Expired - Fee Related CN201146505Y (en) | 2008-01-28 | 2008-01-28 | 13 GHz PDH microwave transmitting and receiving equipment as well as outdoor unit thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859787A (en) * | 2011-05-17 | 2013-01-02 | 华为技术有限公司 | microwave components |
| CN109120302A (en) * | 2018-10-12 | 2019-01-01 | 南京屹信航天科技有限公司 | A kind of miniaturization ku frequency range ODU module |
-
2008
- 2008-01-28 CN CNU2008200787731U patent/CN201146505Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859787A (en) * | 2011-05-17 | 2013-01-02 | 华为技术有限公司 | microwave components |
| CN102859787B (en) * | 2011-05-17 | 2015-03-11 | 华为技术有限公司 | Microwave module |
| US9301426B2 (en) | 2011-05-17 | 2016-03-29 | Huawei Technologies Co., Ltd. | Microwave module |
| CN109120302A (en) * | 2018-10-12 | 2019-01-01 | 南京屹信航天科技有限公司 | A kind of miniaturization ku frequency range ODU module |
| CN109120302B (en) * | 2018-10-12 | 2024-01-30 | 南京屹信航天科技有限公司 | Miniaturized ku frequency channel ODU module |
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| Date | Code | Title | Description |
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| 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: 20081105 Termination date: 20120128 |