CN203166831U - Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier - Google Patents
Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier Download PDFInfo
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- CN203166831U CN203166831U CN 201320129035 CN201320129035U CN203166831U CN 203166831 U CN203166831 U CN 203166831U CN 201320129035 CN201320129035 CN 201320129035 CN 201320129035 U CN201320129035 U CN 201320129035U CN 203166831 U CN203166831 U CN 203166831U
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- 230000009977 dual effect Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a dual-polarization single-local oscillator single-output high-gain low-noise frequency demultiplier, which comprises a waveguide tube at the bottom end and a tuner connected with the upper end of the waveguide tube, wherein the tuner is provided with a casing, an integrated circuit board is arranged in the casing, and a horizontal probe for receiving a horizontal polarization signal and a vertical probe for receiving a vertical polarization signal are arranged in the waveguide tube; the integrated circuit board is provided with a phase modulation line, a preposed signal amplifier, a microstrip controller, a local oscillation mixer, an intermediate frequency amplifier, a frequency limiter and a precise voltage controller for adjusting the preposed signal amplifier and the microstrip controller; the horizontal probe and the vertical probe are in signal connection with a phase modulation line; the upper end of the shell is provided with an output for outputting signals. The utility model discloses use accurate voltage controller to carry out micro-control to voltage, its switching control precision is high, can be in the cable length of output to the loss of hectometer.
Description
Technical field
The utility model relates to a kind of lnb, and the single output of the single local oscillator of especially a kind of dual polarization high-gain low-noise frequency demultiplier belongs to communication frequency demultiplier technical field.
Background technology
The operation principle that satellite antenna receives satellite television is to utilize satellite antenna to collect faint satellite-signal, and this satellite-signal is reflexed to device at the lnb at disc-shaped antenna focus place.Then, lnb amplifies this concentrated signal, and rf frequency is down to intermediate frequency about 1GHz to 2GHz, is sent to indoor receiver or top box of digital machine via cable then.Receiver is selected with the channel that will watch in the signal, after the amplification demodulation is recovered to image and voice signal, and the broadcast program with regard to importing TV.
Along with the development of science and technology and life, the transmission of communication is also more and more universal, watches in the family that the ratio of satellite television is also more and more higher.Wherein, frequency demultiplier is to watch the essential device of satellite TV's TV, but its protection against noise anti-jamming capacity of frequency demultiplier product of the present output of C-band on the market more and more can not satisfy client's demand.
In addition, the frequency demultiplier product of C-band output must add weldering one fine copper wire when the front end signal enters amplifier on the market at present, to adjust phase place and noise, therefore, in case the welding personnel change will cause the welding quality instability.
Summary of the invention
The purpose of this utility model is in order to solve the defective of above-mentioned prior art, provides a kind of gain high, and noise is extremely low, the single output of the single local oscillator of the dual polarization high-gain low-noise frequency demultiplier that work is used during convenient many television identical.
The purpose of this utility model can reach by taking following technical scheme:
The single output of the single local oscillator of dual polarization high-gain low-noise frequency demultiplier, the waveguide tube and the tuner that links to each other with waveguide tube upper end that comprise the bottom, described tuner is provided with casing, be provided with surface-mounted integrated circuit in the described casing, it is characterized in that: be provided with in the described waveguide tube for the horizontal probe that receives the horizontal polarization signal with for the Vertrical probe that receives the perpendicular polarization signal; The accurate voltage controller that is provided with phase place modulation lines, signal preamplifier, little tape controller, lomix, intermediate frequency amplifier, frequency limitation device and is used for regulating signal preamplifier and little tape controller at described surface-mounted integrated circuit; Described horizontal probe is connected with phase place modulation lines signal with Vertrical probe; Described casing upper end is provided with a delivery that is used for output signal.
As a kind of preferred version, described phase place modulation lines has two, is respectively the first phase place modulation lines and the second phase place modulation lines; Described signal preamplifier has two, is respectively first preamplifier and second preamplifier; Described little tape controller has two, is respectively first little tape controller and second little tape controller; Described lomix has one; Described intermediate frequency amplifier has one; Described frequency limitation device has one; Described accurate voltage controller has one; Described horizontal probe, the first phase place modulation lines, first preamplifier and first little tape controller signal successively are connected; Described Vertrical probe, the second phase place modulation lines, second preamplifier and second little tape controller signal successively are connected; Described first little tape controller is connected with the lomix signal respectively with second little tape controller, and described lomix, intermediate frequency amplifier and frequency limitation device signal successively are connected; Described first preamplifier, first little tape controller, second preamplifier and second little tape controller link to each other with the accurate voltage controller respectively.
As a kind of preferred version, described casing and surface-mounted integrated circuit are provided with the first straight grooving and the second straight grooving, the described first phase place modulation lines and first signal preamplifier are positioned at the first straight grooving, and the described second phase place modulation lines and second signal preamplifier are positioned at the second straight grooving.
As a kind of preferred version, the lateral wall of described waveguide tube is provided with first scale.
As a kind of preferred version, the roof of described tuner is provided with second scale.
As a kind of preferred version, described lomix is that local oscillating frequency is the frequency mixer of 5750Mhz.
The utility model has following beneficial effect with respect to prior art:
1, the utility model uses the accurate voltage controller that voltage is carried out micro-control, and its switching controls precision is high, can grow in the cable of output hundred meters lossless.
2, the utility model all adopts the grooving mode to exempt the weldering fine copper wire on casing and surface-mounted integrated circuit, overcome the quality instability that causes because of the welding personnel change, and enhance productivity and stability and the consistency of quality parameter, saved manual soldering, and uniformity in product performance is improved.
Description of drawings
Fig. 1 is the single output of the single local oscillator of dual polarization of the present utility model high-gain low-noise frequency demultiplier perspective view.
Fig. 2 is the single output of the single local oscillator of dual polarization of the present utility model high-gain low-noise frequency demultiplier planar structure schematic diagram.
Fig. 3 is the single output of the single local oscillator of dual polarization of the present utility model high-gain low-noise frequency demultiplier schematic block circuit diagram.
Embodiment
Embodiment 1:
As depicted in figs. 1 and 2, the single output of the single local oscillator of the dual polarization of present embodiment high-gain low-noise frequency demultiplier comprises the waveguide tube 1 and the tuner 2 that links to each other with waveguide tube 1 upper end of bottom, and described tuner 2 is provided with casing 3, is provided with surface-mounted integrated circuit 4 in the described casing 3; Described casing 1 upper end is provided with a delivery 5 that is used for output signal; Described casing 1 and surface-mounted integrated circuit 4 are provided with the first straight grooving 6 and the second straight grooving 7; The lateral wall of described waveguide tube 1 is provided with first scale 8; The roof of described tuner 2 is provided with second scale 9.
As shown in Figures 2 and 3, be provided with horizontal probe 101 and Vertrical probe 102 in the described waveguide tube 1, be provided with the first phase place modulation lines 401, the second phase place modulation lines 402, first signal preamplifier 403, second signal preamplifier 404, first little tape controller 405, second little tape controller 406, lomix 407, intermediate frequency amplifier 408, frequency limitation device 409 and accurate voltage controller 410 at described surface-mounted integrated circuit 4; Described horizontal probe 101, the first phase place modulation lines 401, first preamplifier 403 and first little tape controller 405 signal successively are connected; Described Vertrical probe 102, the second phase place modulation lines 402, second preamplifier 404 and second little tape controller 406 signal successively are connected; Described first little tape controller 405 is connected with lomix 407 signals respectively with second little tape controller 406, and described lomix 407, intermediate frequency amplifier 408 and frequency limitation device 409 signal successively are connected; Described first preamplifier 403, first little tape controller 405, second preamplifier 404 and second little tape controller 406 link to each other with accurate voltage controller 410 respectively; The described first phase place modulation lines 401 and first signal preamplifier 403 are positioned at the first straight grooving 6, and the described second phase place modulation lines 402 and second signal preamplifier 404 are positioned at the second straight grooving 7.
Wherein, described lomix 407 is that local oscillating frequency is the frequency mixer of 5750Mhz.
As shown in Figure 3, the single output of the single local oscillator of the dual polarization of present embodiment high-gain low-noise frequency demultiplier operation principle is as follows:
Horizontal probe 101, Vertrical probe 102 receive horizontal polarization signal and perpendicular polarization signal simultaneously, and the horizontal polarization signal is through the first phase place modulation lines 401, first preamplifier 403 and first little tape controller 405, and amplifying signal is to suitable scope; Meanwhile, the perpendicular polarization signal is through the first phase place modulation lines 402, first preamplifier 404 and first little tape controller 406, and amplifying signal is to suitable scope; The horizontal polarization signal that amplifies and perpendicular polarization signal are exported by delivery 5 through lomix 407, intermediate frequency amplifier 408 and frequency limitation device 409 more simultaneously.Wherein, accurate voltage controller 410 can be regulated the voltage of first preamplifier 403, first little tape controller 405, second preamplifier 404 and second little tape controller 406.
The above; it only is the utility model preferred embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in scope disclosed in the utility model; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all belonged to protection range of the present utility model.
Claims (6)
1. the single local oscillator list of dual polarization is exported the high-gain low-noise frequency demultiplier, the waveguide tube (1) and the tuner (2) that links to each other with waveguide tube (1) upper end that comprise the bottom, described tuner (2) is provided with casing (3), be provided with surface-mounted integrated circuit (4) in the described casing (3), it is characterized in that: be provided with in the described waveguide tube (1) for the horizontal probe that receives the horizontal polarization signal with for the Vertrical probe that receives the perpendicular polarization signal; The accurate voltage controller that is provided with phase place modulation lines, signal preamplifier, little tape controller, lomix, intermediate frequency amplifier, frequency limitation device and is used for regulating signal preamplifier and little tape controller at described surface-mounted integrated circuit (4); Described horizontal probe is connected with phase place modulation lines signal with Vertrical probe; Described casing (1) upper end is provided with a delivery (5) that is used for output signal.
2. the single local oscillator list of dual polarization according to claim 1 is exported the high-gain low-noise frequency demultiplier, and it is characterized in that: described phase place modulation lines has two, is respectively the first phase place modulation lines and the second phase place modulation lines; Described signal preamplifier has two, is respectively first preamplifier and second preamplifier; Described little tape controller has two, is respectively first little tape controller and second little tape controller; Described lomix has one; Described intermediate frequency amplifier has one; Described frequency limitation device has one; Described accurate voltage controller has one; Described horizontal probe, the first phase place modulation lines, first preamplifier and first little tape controller signal successively are connected; Described Vertrical probe, the second phase place modulation lines, second preamplifier and second little tape controller signal successively are connected; Described first little tape controller is connected with the lomix signal respectively with second little tape controller, and described lomix, intermediate frequency amplifier and frequency limitation device signal successively are connected; Described first preamplifier, first little tape controller, second preamplifier and second little tape controller link to each other with the accurate voltage controller respectively.
3. the single local oscillator list of dual polarization according to claim 2 is exported the high-gain low-noise frequency demultiplier, it is characterized in that: described casing (3) and surface-mounted integrated circuit (4) are provided with the first straight grooving (6) and the second straight grooving (7), the described first phase place modulation lines and first signal preamplifier are positioned at the first straight grooving (6), and the described second phase place modulation lines and second signal preamplifier are positioned at the second straight grooving (7).
4. according to the single output of the single local oscillator of each described dual polarization of claim 1-3 high-gain low-noise frequency demultiplier, it is characterized in that: the lateral wall of described waveguide tube (1) is provided with first scale (8).
5. according to the single output of the single local oscillator of each described dual polarization of claim 1-3 high-gain low-noise frequency demultiplier, it is characterized in that: the roof of described tuner (2) is provided with second scale (9).
6. according to the single output of the single local oscillator of each described dual polarization of claim 1-3 high-gain low-noise frequency demultiplier, it is characterized in that: described lomix is that local oscillating frequency is the frequency mixer of 5750Mhz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129035 CN203166831U (en) | 2013-03-20 | 2013-03-20 | Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129035 CN203166831U (en) | 2013-03-20 | 2013-03-20 | Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier |
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| Publication Number | Publication Date |
|---|---|
| CN203166831U true CN203166831U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129035 Expired - Lifetime CN203166831U (en) | 2013-03-20 | 2013-03-20 | Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736155A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel high clutter reduction S frequency range tuners |
-
2013
- 2013-03-20 CN CN 201320129035 patent/CN203166831U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736155A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel high clutter reduction S frequency range tuners |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |