CN105261839A - C-Ku dual-band integrated feed source - Google Patents
C-Ku dual-band integrated feed source Download PDFInfo
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- CN105261839A CN105261839A CN201510735086.7A CN201510735086A CN105261839A CN 105261839 A CN105261839 A CN 105261839A CN 201510735086 A CN201510735086 A CN 201510735086A CN 105261839 A CN105261839 A CN 105261839A
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- 230000005855 radiation Effects 0.000 claims abstract description 17
- 230000010354 integration Effects 0.000 claims description 16
- 230000000644 propagated effect Effects 0.000 claims description 9
- 230000005284 excitation Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005388 cross polarization Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Abstract
The invention discloses a C-Ku dual-band integrated feed source. When signals are emitted, C-wave band signals are radiated by a C-wave band feed port, spread via a C/Ku coaxial waveguide and radiated out via a C/Ku common radiation section horn. Ku-wave band signals are radiated by a Ku-wave ban feed section, spread via a circular waveguide, and radiated out via the C/Ku common radiation section horn. When signals are received, the C-wave band signals are collected into a feed source body via the C/Ku common radiation section horn, and are spread to the C-wave band feed port via the C/Ku coaxial waveguide; and the Ku-wave band signals are collected into the feed source body via the C/Ku common radiation section horn and then spread to the Ku-wave ban feed section via the circular waveguide. According to the invention, one multi-band feed source is used for replacing two feed sources, so the trouble in the prior art that multi-band antennas should be switched back and forth after being installed on one communication vehicle and problems of weight and space are solved.
Description
Technical field
The present invention relates to technical field of satellite communication, particularly a kind of C-Ku two-band integration feed.
Background technology
Along with the high speed development of space flight and the communication technology, satellite communication is by all trades and professions extensive use.Satellite communication system conventional at present has C frequency range and Ku frequency range two kinds.The shortcoming of C frequency range is that communication band is narrower, antijamming capability is lower, antenna gain is less, and it is little that advantage is that rain declines; The advantage of Ku frequency range is that communication band is wider, antijamming capability is comparatively strong, antenna gain is higher, and shortcoming is that rain declines comparatively greatly, often because rain declines when running into rainy, occurs that communication quality declines, even communication disruption.The scheme that current head it off adopts a communication truck is equipped with Ku wave band and C-band two antennas, switches as required.And for a little communication truck, two antennas are housed, and still more difficult, one is that weight ratio is heavier, and two is that roof space is limited.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of C-Ku two-band integration feed, to solve in prior art the technical problem needing back and forth Ku wave band and C-band two antennas.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of C-Ku two-band integration feed, described C-Ku two-band integration feed entirety connects light wall waveguiding structure in round mouth corrugated horn, round mouth corrugated horn inside is the public radiant section loudspeaker of C/Ku and analog-to-digital conversion district, in the waveguide of light wall, C/Ku coaxial waveguide is set, the excitation of C-band adopts C/Ku coaxial waveguide outer conductor outer wall to offer the exiting form of pod, this pod is C-band feed port, the external medium matching section of C-band feed port and Waveguide interface, pod is long is λ/4, and λ is C-band operating central wavelength; In C/Ku coaxial waveguide, circular waveguide is installed, the top nested medium figuration section of circular waveguide, medium figuration section is divided into three, upper, middle and lower part, and upper and lower part is notch cuttype cylinder, mid portion is cylinder, and the lower part cylinder of medium figuration section is positioned at circular waveguide; The end of circular waveguide is Ku wave band feed section;
When transmitting, C-band signal, by the radiation of C-band feed port, is propagated through C/Ku coaxial waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku; Ku band signal, by the radiation of Ku wave band feed section, is propagated through circular waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku;
During Received signal strength, C-band signal is collected in feed through the public radiant section loudspeaker of C/Ku, and C-band signal propagates into C-band feed port through C/Ku coaxial waveguide; Ku band signal is collected in feed through the public radiant section loudspeaker of C/Ku, and Ku band signal propagates into Ku wave band feed section through circular waveguide.
Described round mouth corrugated horn inwall offers axial notch, and groove depth is λ/4, and λ is the wavelength of C-band signal.
The lower part cylinder of described medium figuration section have employed three joint perturbed structures.
C/Ku coaxial waveguide excitation circular waveguide transmission TE11 mould, the wavelength selection principle of C/Ku coaxial waveguide is λ
tE21< λ < λ
tE11, λ is the wavelength of C/Ku coaxial waveguide herein, i.e. the wavelength of C-band signal.TE21, TE11 are respectively the electromagnetic pattern propagated in C/Ku coaxial waveguide, λ
tE21for the electromagnetic wavelength corresponding to TE21 mould, λ
tE11for the electromagnetic wavelength corresponding to TE11 mould.
The internal diameter of C/Ku coaxial waveguide is 9.5mm, and external diameter is 16.8mm.
Operation principle of the present invention is:
When transmitting, C-band signal, by the radiation of C-band feed port, is propagated through C/Ku coaxial waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku; Ku band signal, by the radiation of Ku wave band feed section, is propagated through circular waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku;
During Received signal strength, C-band signal is collected in feed through the public radiant section loudspeaker of C/Ku, C-band signal propagates into C-band feed port through C/Ku coaxial waveguide, because the size of circular waveguide is less relative to C-band operation wavelength, the cut-off wavelength of circular waveguide is less than C-band operation wavelength, so the signal of C-band can not be propagated in circular waveguide, can not have an impact to the signal of Ku wave band; Ku band signal is collected in feed through the public radiant section loudspeaker of C/Ku, Ku band signal propagates into Ku wave band feed section through circular waveguide, the wavelength of Ku band signal is about 24mm, do not mate with the size of C/Ku coaxial waveguide, the signal of Ku wave band can not be propagated in C/Ku coaxial waveguide, can not impact the reception of C-band signal.
After the present invention adopts said structure, there is following technique effect:
The present invention adopts a multiband feed to replace two feeds, and solve in prior art and need multiband aerial to be arranged on a communication truck, the trouble switched back and forth as required, solves the problem in weight and space.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the external structure of C-Ku two-band of the present invention integration feed;
Fig. 2 shows the internal structure of C-Ku two-band of the present invention integration feed.
Embodiment
For making object of the present invention and technical scheme clearly, below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
As shown in Figure 1-2, C-Ku two-band integration feed of the present invention comprises for technical characteristics such as the public radiant section loudspeaker 1 of C/Ku, analog-to-digital conversion district 2, medium figuration section 3, circular waveguide 4, C/Ku coaxial waveguide 5, medium matching section 6, Waveguide interface 7, C-band feed port 8 and Ku wave band feed sections 9.
A kind of C-Ku two-band integration feed, described C-Ku two-band integration feed entirety connects light wall waveguiding structure in round mouth corrugated horn, round mouth corrugated horn inside is the public radiant section loudspeaker of C/Ku and analog-to-digital conversion district, in the waveguide of light wall, C/Ku coaxial waveguide is set, the excitation of C-band adopts C/Ku coaxial waveguide outer conductor outer wall to offer the exiting form of pod, this pod is C-band feed port, the external medium matching section of C-band feed port and Waveguide interface, pod is long is λ/4, λ is the wavelength of C/Ku coaxial waveguide herein, i.e. the wavelength of C-band signal; In C/Ku coaxial waveguide, circular waveguide is installed, the top nested medium figuration section of circular waveguide, medium figuration section is divided into three, upper, middle and lower part, and upper and lower part is notch cuttype cylinder, mid portion is cylinder, and the lower part cylinder of medium figuration section is positioned at circular waveguide; The end of circular waveguide is Ku wave band feed section.
In order to ensure that feed can realize dual-linear polarization work, and being conveniently connected with corrugated horn, circular waveguide need be selected as the span line of feed; Consider the maximization of Energy Transfer, by selecting suitable circular waveguide size, circular waveguide should be made only to transmit main mould, i.e. TE11 mould, and suppressing higher mode to be transmitted, as TM01, TE21 etc.
The external duplexer of end of circular waveguide, has realized the proper communication of Ku wave band transmitting-receiving frequency range.
The public radiant section loudspeaker of C/Ku adopt round mouth corrugated horn inwall to offer axial notch, and groove depth is λ/4, and λ is the wavelength of C/Ku coaxial waveguide herein, i.e. the wavelength of C-band signal.This kind of horn feed function admirable, the voltinisms such as horn flare angle is large, directional diagram are high, and cross-polarization performance is good.Adjustment groove depth and groove width, slot pitch, can realize the figuration to feed directional diagram, groove depth is preferably λ/4.
The excitation of C-band adopts coaxial waveguide outer conductor outer wall to open the form excitation of pod, and the incentive structure of this form is fairly simple, does not need extra waveguide device, and volume is little, lightweight, and cost is also cheaper.C-band sending and receiving frequency range feed port becomes 90 degree of distributions, longitudinally at a distance of about λ/4.Feed port boundary rectangle matching unit, has realized less standing-wave ratio.
The lower part cylinder of described medium figuration section have employed three joint perturbed structures, as shown in Figure 2, three joint perturbed structures refer to that the lower part cylinder of medium figuration section adopts three joint hierarchic structures to form perturbation, size and the version of three joint perturbed structures affect the communication mode of electromagnetic wave in circular waveguide, adjust its size, Ku wave band standing-wave ratio can be realized.The mediate cylindrical part of adjustment medium figuration section and the cylindrical size of upper part, can realize the figuration to Ku wave band directional diagram, realize the changes such as feed directional diagram E face, H face, and antenna cross-polarization performance.
In order to improve the radiation efficiency of coaxial waveguide, have employed the TE11 mould of coaxial waveguide excitation, make the antenna pattern of coaxial waveguide axially maximum, wavelength, the interior outer radius selection principle of coaxial waveguide are λ
tE21< λ < λ
tE11, the internal diameter of final coaxial waveguide gets 9.5mm, and external diameter gets 16.8mm.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the present invention refers to respective individualism or both simultaneous situations include interior.
The indirect connection that can be the direct connection between parts also can be by other parts between parts of the implication of " connection " described in the present invention.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a C-Ku two-band integration feed, it is characterized in that: described C-Ku two-band integration feed entirety connects light wall waveguiding structure in round mouth corrugated horn, round mouth corrugated horn inside is the public radiant section loudspeaker of C/Ku and analog-to-digital conversion district, in the waveguide of light wall, C/Ku coaxial waveguide is set, the excitation of C-band adopts C/Ku coaxial waveguide outer conductor outer wall to offer the exiting form of pod, this pod is C-band feed port, the external medium matching section of C-band feed port and Waveguide interface, pod is long is λ/4, and λ is C-band signal wavelength; In C/Ku coaxial waveguide, circular waveguide is installed, the top nested medium figuration section of circular waveguide, medium figuration section is divided into three, upper, middle and lower part, and upper and lower part is notch cuttype cylinder, mid portion is cylinder, and the lower part cylinder of medium figuration section is positioned at circular waveguide; The end of circular waveguide is Ku wave band feed section;
When transmitting, C-band signal, by the radiation of C-band feed port, is propagated through C/Ku coaxial waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku; Ku band signal, by the radiation of Ku wave band feed section, is propagated through circular waveguide, is gone out by the public radiant section loudspeaker radiation of C/Ku;
During Received signal strength, C-band signal is collected in feed through the public radiant section loudspeaker of C/Ku, and C-band signal propagates into C-band feed port through C/Ku coaxial waveguide; Ku band signal is collected in feed through the public radiant section loudspeaker of C/Ku, and Ku band signal propagates into Ku wave band feed section through circular waveguide.
2. C-Ku two-band integration feed according to claim 1, is characterized in that: described round mouth corrugated horn inwall offers axial notch, and groove depth is λ/4, and λ is the wavelength of C-band signal.
3. C-Ku two-band integration feed according to claim 1, is characterized in that: the lower part cylinder of described medium figuration section have employed three joint perturbed structures.
4. C-Ku two-band integration feed according to claim 1, it is characterized in that: the wavelength selection principle of C/Ku coaxial waveguide is λ TE21< λ < λ TE11, λ is the wavelength of C/Ku coaxial waveguide herein, i.e. the wavelength of C-band signal.
5. C-Ku two-band integration feed according to claim 1, is characterized in that: the internal diameter of C/Ku coaxial waveguide is 9.5mm, and external diameter is 16.8mm.
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| CN201510735086.7A CN105261839B (en) | 2015-11-03 | 2015-11-03 | A kind of C-Ku two-bands integration feed |
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| CN201510735086.7A CN105261839B (en) | 2015-11-03 | 2015-11-03 | A kind of C-Ku two-bands integration feed |
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Cited By (8)
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| CN108134182A (en) * | 2017-12-05 | 2018-06-08 | 安徽四创电子股份有限公司 | A kind of Double frequency feed source loudspeaker including becket |
| CN108737796A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuner structures |
| CN110710053A (en) * | 2017-06-07 | 2020-01-17 | 利萨·德雷克塞迈尔有限责任公司 | Antenna with multiple individual radiators |
| CN111987464A (en) * | 2020-07-17 | 2020-11-24 | 南京理工大学 | Ku/Ka waveband double-frequency cone-beam horn antenna |
| CN112335127A (en) * | 2018-04-27 | 2021-02-05 | 上海诺基亚贝尔股份有限公司 | Multiband Radio Frequency (RF) antenna system |
| CN112615162A (en) * | 2020-12-14 | 2021-04-06 | 西安电子科技大学 | Common-caliber three-frequency multi-mode horn antenna |
| CN112886252A (en) * | 2021-01-27 | 2021-06-01 | 北京邮电大学 | Compact range shaped feed source and compact range system |
| CN114361801A (en) * | 2021-12-28 | 2022-04-15 | 昆山荷兹天线微波技术有限公司 | Dual-polarized high-isolation L-band miniaturized horn antenna |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108737796A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuner structures |
| CN110710053A (en) * | 2017-06-07 | 2020-01-17 | 利萨·德雷克塞迈尔有限责任公司 | Antenna with multiple individual radiators |
| CN108134182B (en) * | 2017-12-05 | 2020-03-17 | 安徽四创电子股份有限公司 | Double-frequency feed source horn comprising metal ring |
| CN108134182A (en) * | 2017-12-05 | 2018-06-08 | 安徽四创电子股份有限公司 | A kind of Double frequency feed source loudspeaker including becket |
| US11367958B2 (en) | 2018-04-27 | 2022-06-21 | Nokia Shanghai Bell Co., Ltd | Multi-band radio-frequency (RF) antenna system |
| CN112335127A (en) * | 2018-04-27 | 2021-02-05 | 上海诺基亚贝尔股份有限公司 | Multiband Radio Frequency (RF) antenna system |
| CN112335127B (en) * | 2018-04-27 | 2023-09-01 | 上海诺基亚贝尔股份有限公司 | Multi-band Radio Frequency (RF) antenna system |
| CN111987464A (en) * | 2020-07-17 | 2020-11-24 | 南京理工大学 | Ku/Ka waveband double-frequency cone-beam horn antenna |
| CN111987464B (en) * | 2020-07-17 | 2022-10-14 | 南京理工大学 | Ku/Ka waveband double-frequency cone-beam horn antenna |
| CN112615162A (en) * | 2020-12-14 | 2021-04-06 | 西安电子科技大学 | Common-caliber three-frequency multi-mode horn antenna |
| CN112615162B (en) * | 2020-12-14 | 2021-10-22 | 西安电子科技大学 | Common-caliber three-frequency multi-mode horn antenna |
| CN112886252A (en) * | 2021-01-27 | 2021-06-01 | 北京邮电大学 | Compact range shaped feed source and compact range system |
| CN114361801A (en) * | 2021-12-28 | 2022-04-15 | 昆山荷兹天线微波技术有限公司 | Dual-polarized high-isolation L-band miniaturized horn antenna |
| CN114361801B (en) * | 2021-12-28 | 2023-10-13 | 昆山荷兹天线微波技术有限公司 | Dual-polarized high-isolation L-band miniaturized horn antenna |
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