CN108333788A - Radio frequency and infrared beams complex method and simulator - Google Patents
Radio frequency and infrared beams complex method and simulator Download PDFInfo
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- CN108333788A CN108333788A CN201810037244.5A CN201810037244A CN108333788A CN 108333788 A CN108333788 A CN 108333788A CN 201810037244 A CN201810037244 A CN 201810037244A CN 108333788 A CN108333788 A CN 108333788A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
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Abstract
The present invention provides a kind of radio frequencies and infrared beams complex method, utilize the radio frequency for cooperatively forming Shared aperture and infrared composite signal of offset-fed paraboloid and anti-infrared transmission frequency beam synthesizer, radio frequency compact feed is in paraboloidal focal point, feed signal is first again by parabolic reflector after the transmission of beam synthesizer, after the repeated optical system exit of infrared imaging radiation signal, the first reflection through beam synthesizer, then by parabolic reflector.The present invention discloses a kind of radio frequency and infrared beams composite analogy device, anti- infrared transmission frequency beam synthesizer is placed in offset-fed paraboloid near focal point, the transmission that radiofrequency signal passes through it, infrared relay optical system is emitted reflection of the infrared signal by it, the composite signal of formation is again by the reflection of offset-fed paraboloid, to form Shared aperture composite signal.
Description
Technical field
The present invention relates to simulation fields, and in particular, to radio frequency and infrared beams complex method and simulator.Especially
It is that the present invention relates to a kind of microwave, millimeter wave and infrared imaging wave beam complex method and simulators.
Background technology
Radio frequency and infrared composite signal simulator be carry out in the laboratory in radio frequency and the design of infrared combined guidance, verify,
The key of test and assessment.To meet compound, the main use deflation of two kinds of signals in the confined space on the five-axis flight table of laboratory
Field structure specifically reflects frequency infrared and anti-infrared transmission frequency two ways thoroughly to radio frequency and infrared being compounded with.One is utilizations
The metallic mesh transmission infrared signal for being open and filling on the paraboloid of revolution, metallic mesh and paraboloid of revolution reflecting surface are anti-simultaneously
Microwave signal is penetrated, infrared signal and microwave signal Shared aperture is compound.The shortcomings that this structure is：Metallic mesh infrared transmittivity
Generally below 50%, for simulation of infrared imaging device, infrared energy loss is larger, cannot be satisfied high compacting than simulation than
It asks；The diffraction reduction infrared imaging quality of metallic mesh.
Another kind is reflected infrared signal using the primary and secondary mirror of optics Cassegrain system, and microwave signal passes through secondary mirror
The reflection of lens and primary mirror.The shortcomings that this structure is：Due to blocking for secondary mirror, which is not suitable for red
The small detector of outer optical system exit pupil diameter；Since secondary mirror position there must be support construction, the corrugated of microwave signal can be introduced
Distortion；Clamping structure center opening will cause the loss of RF energy, edge diffraction that will influence corrugated quality.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of radio frequencies and infrared beams complex method and mould
Quasi- device.Especially, the object of the present invention is to provide a kind of wave beam composite analogy dresses for taking into account microwave X, Ku, Ka and infrared imaging
It sets, solves the problems, such as that rf broadband is compound with infrared imaging, it is applied widely.
According to a kind of radio frequency provided by the invention and infrared beams complex method, offset-fed paraboloid and anti-infrared transmission are utilized
The radio frequency for cooperatively forming Shared aperture of frequency beam synthesizer and infrared composite signal, radio frequency compact feed are in paraboloid
Focal point, for feed signal first after the transmission of beam synthesizer again by parabolic reflector, infrared imaging radiation signal is repeated
After optical system exit, the first reflection through beam synthesizer, then by parabolic reflector.
According to a kind of radio frequency provided by the invention and infrared beams composite analogy device, including：It is offset-fed paraboloid, anti-infrared
Transmit frequency beam synthesizer, infrared imaging component, relay optical system, radio frequency feedder, signal source；
Offset-fed paraboloid, radio frequency feedder and signal source form radio frequency goal systems；Radio frequency feedder is mounted on offset-fed paraboloid
Focal position, radio frequency feedder is connected with offset-fed paraboloid with holder；Signal source provides source signal, radio-frequency feed to radio frequency feedder
The radiofrequency signal that source is sent out according to source signal is reflected through anti-infrared transmission frequency beam synthesizer transmission directive offset-fed paraboloid；
Infrared imaging component, relay optical system form IR imaging target system；The focal length of relay optical system is inclined
Present paraboloid focal length 1~3 times；The repeated optical system of outgoing infrared signal of infrared imaging component reaches anti-infrared transmission frequency
Directive offset-fed paraboloid is reflected after beam synthesizer is reflected；
Anti- infrared transmission frequency beam synthesizer and horizontal direction slant setting, to reflect infrared signal and transmission radiofrequency signal
Mode infrared signal and radiofrequency signal are carried out it is once-combined.
Preferably, anti-infrared transmission frequency beam synthesizer is the multilayer dielectricity tablet for the inorganic and organic media for transmiting frequency,
Plate infrared Anti-reflective coating in surface；
Signal reflex after anti-infrared transmission frequency beam synthesizer is compound is reached complex detector end by offset-fed paraboloid；
The bore of offset-fed paraboloid is 2~3 times of radio-frequency probe bore；Do sawtooth processing in offset-fed paraboloid edge.
Preferably, radio frequency feedder, anti-infrared transmission frequency beam synthesizer periphery cover absorbing material.
Compared with prior art, the present invention has following advantageous effect：
1, the design of offset-fed Compact Range avoids blocking for secondary mirror structure in clamping structure；
2, paraboloid covering radio frequency band is wide, only needs to change Feed Horn, you can realizes the spoke of X, Ku, Ka different frequency range
It penetrates；
3, infrared energy utilization rate is more than 70%.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structure principle chart of radio frequency provided by the invention and infrared beams composite analogy device.
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection domain.
As shown in Figure 1, the radio frequency and infrared beams complex method of the present invention, utilize offset-fed paraboloid and anti-infrared transmission frequency
The radio frequency for cooperatively forming Shared aperture of beam synthesizer and infrared composite signal.Radio frequency compact feed is in paraboloidal
Focal point, feed signal is first again by parabolic reflector after the transmission of beam synthesizer；The repeated light of infrared imaging radiation signal
After learning system exit, the first reflection through beam synthesizer, then by parabolic reflector.
Radio frequency and infrared beams composite analogy device include：It is offset-fed paraboloid 1, anti-infrared transmission frequency beam synthesizer 2, red
Outer image-forming assembly 3, relay optical system 4, radio frequency feedder 5, signal source 6, tooling 7, absorbing material 8, mating cable 9.
Radio frequency goal systems is made of offset-fed paraboloid 1, radio frequency feedder 5 and signal source 6；Radio frequency feedder is thrown mounted on offset-fed
The focal position of object plane is connected feed with paraboloid with holder.
IR imaging target system is made of infrared imaging component 3 and its relay optical system 4.The coke of relay optical system
Away from 1~3 times for offset-fed paraboloid focal length.
Anti- infrared transmission frequency beam synthesizer is the multilayer dielectricity tablet for the inorganic and organic media for transmiting frequency, and surface plating is red
Outer Anti-reflective coating.The anti-infrared transmission frequency beam synthesizer is in offset-fed paraboloid near focal point, and horizontal direction slant setting, with
The mode for reflecting infrared signal and transmission radiofrequency signal is once-combined by infrared signal and radiofrequency signal progress.
Signal reflex after beam synthesizer is compound is reached complex detector end by offset-fed paraboloid.Offset-fed paraboloid
Bore is 2~3 times of radio-frequency probe bore.Do sawtooth processing in offset-fed paraboloid edge.
Radio frequency and infrared beams composite analogy device cover absorbing material on feed, beam synthesizer and tooling periphery.
Radiofrequency signal frequency range is X, Ku, Ka in this example, and infrared signal wave band is 3~5 μm, and offset-fed paraboloid bore is
600mm × 600mm, focal length 350mm, feed are three sets of X, Ku, Ka independence corrugated horns, and antenna position phase center is located at coke
Point position；Anti- infrared transmission frequency beam synthesizer is placed on the position of focal point 20mm, 25 ° of placements of angle with horizontal plane.It is infrared
Imaging Simulation device uses electric resistance array component, Fiber panel or DMD switching devices, is equipped with transmission-type relay optical system to compensate
Off axis paraboloid mirror aberration.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the absence of conflict, the feature in embodiments herein and embodiment can arbitrary phase
Mutually combination.
Claims (4)
1. a kind of radio frequency and infrared beams complex method, it is characterised in that：Utilize offset-fed paraboloid and anti-infrared transmission frequency wave beam
The radio frequency for cooperatively forming Shared aperture of synthesizer and infrared composite signal, radio frequency compact feed are in paraboloidal focus
Place, feed signal is first again by parabolic reflector, the repeated optical system of infrared imaging radiation signal after the transmission of beam synthesizer
After system outgoing, the first reflection through beam synthesizer, then by parabolic reflector.
2. a kind of radio frequency and infrared beams composite analogy device, which is characterized in that including：Offset-fed paraboloid, anti-infrared transmission frequency
Beam synthesizer, infrared imaging component, relay optical system, radio frequency feedder, signal source；
Offset-fed paraboloid, radio frequency feedder and signal source form radio frequency goal systems；Radio frequency feedder is mounted on the coke of offset-fed paraboloid
Point position, is connected radio frequency feedder with offset-fed paraboloid with holder；Signal source provides source signal, radio frequency feedder root to radio frequency feedder
The radiofrequency signal sent out according to source signal is reflected through anti-infrared transmission frequency beam synthesizer transmission directive offset-fed paraboloid；
Infrared imaging component, relay optical system form IR imaging target system；The focal length of relay optical system is thrown for offset-fed
1~3 times of object plane focal length；The repeated optical system of outgoing infrared signal of infrared imaging component reaches anti-infrared transmission frequency wave beam
Directive offset-fed paraboloid is reflected after synthesizer is reflected；
Anti- infrared transmission frequency beam synthesizer and horizontal direction slant setting, to reflect infrared signal and transmit the side of radiofrequency signal
Formula carries out infrared signal and radiofrequency signal once-combined.
3. radio frequency according to claim 2 and infrared beams composite analogy device, which is characterized in that anti-infrared transmission frequency wave
Beam synthesizer is the multilayer dielectricity tablet for the inorganic and organic media for transmiting frequency, and infrared Anti-reflective coating is plated on surface；
Signal reflex after anti-infrared transmission frequency beam synthesizer is compound is reached complex detector end by offset-fed paraboloid；
The bore of offset-fed paraboloid is 2~3 times of radio-frequency probe bore；Do sawtooth processing in offset-fed paraboloid edge.
4. radio frequency according to claim 2 and infrared beams composite analogy device, which is characterized in that radio frequency feedder, anti-red
Outer transmission frequency beam synthesizer periphery covers absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037244.5A CN108333788A (en) | 2018-01-15 | 2018-01-15 | Radio frequency and infrared beams complex method and simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037244.5A CN108333788A (en) | 2018-01-15 | 2018-01-15 | Radio frequency and infrared beams complex method and simulator |
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| CN201810037244.5A Pending CN108333788A (en) | 2018-01-15 | 2018-01-15 | Radio frequency and infrared beams complex method and simulator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654335A (en) * | 2019-11-26 | 2020-09-11 | 航天东方红卫星有限公司 | Wireless test method of relay data transmission system under whole satellite near field |
| WO2020199369A1 (en) * | 2019-03-30 | 2020-10-08 | 深圳市新益技术有限公司 | Linear compact feed automatic switching system and feed switching method |
| CN112909725A (en) * | 2021-01-13 | 2021-06-04 | 华中科技大学 | Star-reflection-based blue light semiconductor laser wavelength beam combining device and method |
| CN112904583A (en) * | 2021-02-04 | 2021-06-04 | 上海机电工程研究所 | Radio frequency/optical composite target simulation device and method |
| CN114361752A (en) * | 2021-11-29 | 2022-04-15 | 北京仿真中心 | Broadband beam synthesizer with gradient-changing dielectric constant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199369A1 (en) * | 2019-03-30 | 2020-10-08 | 深圳市新益技术有限公司 | Linear compact feed automatic switching system and feed switching method |
| CN111654335A (en) * | 2019-11-26 | 2020-09-11 | 航天东方红卫星有限公司 | Wireless test method of relay data transmission system under whole satellite near field |
| CN111654335B (en) * | 2019-11-26 | 2021-12-07 | 航天东方红卫星有限公司 | Wireless test method of relay data transmission system under whole satellite near field |
| CN112909725A (en) * | 2021-01-13 | 2021-06-04 | 华中科技大学 | Star-reflection-based blue light semiconductor laser wavelength beam combining device and method |
| CN112904583A (en) * | 2021-02-04 | 2021-06-04 | 上海机电工程研究所 | Radio frequency/optical composite target simulation device and method |
| CN112904583B (en) * | 2021-02-04 | 2022-10-18 | 上海机电工程研究所 | Radio frequency/optical composite target simulation device and method |
| CN114361752A (en) * | 2021-11-29 | 2022-04-15 | 北京仿真中心 | Broadband beam synthesizer with gradient-changing dielectric constant |
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Application publication date: 20180727 |
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