CN2741207Y - Horizontal planar satellite communicating antenna - Google Patents
Horizontal planar satellite communicating antenna Download PDFInfo
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- CN2741207Y CN2741207Y CN 200520011756 CN200520011756U CN2741207Y CN 2741207 Y CN2741207 Y CN 2741207Y CN 200520011756 CN200520011756 CN 200520011756 CN 200520011756 U CN200520011756 U CN 200520011756U CN 2741207 Y CN2741207 Y CN 2741207Y
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Abstract
The utility model provides a horizontal planar satellite communicating antenna, comprising a receiving / sending device, a diverter and a resonator. The receiving / sending device is connected with the resonator through the diverter; the receiving / sending device is used for receiving and sending the electromagnetic wave; the deflector can turn any angle electromagnetic wave into the vertical direction sending in the resonator or turn the vertical direction electromagnetic wave sending in the resonator into any angle being sent out by the receiving / sending device; therefore the pitching angle doesn't be needed when mounting; the utility model can nicely send and receive the electromagnetic wave when being put horizontally. The passing paths from any receiving / sending device to the tail end of the resonant cavity are equal. Therefore the aerial gain is enlarged according to the communication requirement and the chamber resonating principle; in addition, because of adopting the resonant cavity transmitting the electromagnetic wave, the isolation degree between receiving and sending is high; the high power can be bore.
Description
Technical field
The utility model and antenna a kind of and that inter-satellite carries out microwave communication relate in particular to a kind of flatwise type flat-plate satellite communication antenna.
Background technology
In radio communication, antenna and feeder line have very consequence, and the quality of its performance directly has influence on the quality of communication.Antenna can be divided into transmitting antenna and reception antenna two big classes, the task of transmitting antenna is the loss with minimum, the high-frequency signal radiation of power of transmitter output is gone out radio wave (electromagnetic wave) to the space, then electromagnetic wave through space one end distance from propagation arrival acceptance point accept antenna.From the sender to the antenna and from the antenna to the receiver, all connect by feeder line.Antenna and feeder system are the important component parts of radio communication thus.
Satellite communication, microwave communication all be unable to do without antenna, and usefulness has traditionally: horn antenna, parabolic antenna, horn reflector antenna and Cassegrain antenna.Some plate aerials are arranged in recent years, as little band plate aerial and row seam formula plate aerial again.These antenna has played indelible effect in fixed station (when ground satellite station, microwave station, communication truck, the parking of satellite transmission car).This mode is commonly called as " Jing Zhongtong ".
Along with the development of telecommunications, require " communication in moving ".Just carry out satellite communication and microwave communication on mobile vehicle, for example: communication truck, naval vessel carry out satellite communication and microwave communication transmitted image language, data etc. under steam.In this case, traditional antenna has just had bottleneck, can't realize " communication in moving ".Parabolic antenna in microwave communication (just present, offset-fed), plate aerial all need the angle of pitch, antenna is up to 1.5～2 meters, at this moment windage is too big under steam for mobile vehicle, can't follow the tracks of, if adding radome has overcome windage, but too high, do not cross culvert, have only plate aerial is kept flat onboard, add that radome (overcoming windage) solves limit for height again.For example train limit for height 365mm has only antenna to lie on the train top and just can reach requirement.The plate aerial that uses also has some technical unsurmountable defectives except above shortcoming now.For example little band plate aerial, the important indicator of an antenna are the gain sizes, because of antenna gain is directly proportional with its area, will improve its gain in order to satisfy communicating requirement, antenna area will strengthen, and at this moment little band loss also strengthens immediately, the result is that antenna area has increased, and gain but at the worst.Another is that receive-transmit isolation is poor to ordering weakness, needs high-power emission during communication, and the result just interferes with the end of collecting mail, and causes and can't use.
This just needs a kind of flatwise type flat-plate satellite communication antenna of invention, does not need the angle of pitch, and horizontal positioned just can send and receive electromagnetic wave well, can also do big antenna gain according to the communication needs simultaneously.Also to have the receive-transmit isolation height in addition, can bear high-power.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this utility model provides a kind of flatwise type flat-plate satellite communication antenna can satisfy above-mentioned requirements, does not need the angle of pitch during installation, and horizontal positioned just can send and receive electromagnetic wave well; Can do big antenna gain according to the communication needs; Also to have the receive-transmit isolation height in addition, can bear high-power.
The purpose of this utility model is achieved through the following technical solutions:
A kind of flatwise type flat-plate satellite communication antenna comprises reception/transmitter, diverter and resonant body; Reception/transmitter is connected with resonant body by diverter; Reception/transmitter is used for receiving and sends electromagnetic wave, and diverter can be transformed into the electromagnetic wave at any angle that receives that vertical direction is imported resonant body into or the electromagnetic wave of the vertical direction of launching in the resonant body is transformed into and arbitrarily angledly sent by reception/transmitter; Resonant body is made up of last resonant body, following resonant body and dividing plate each other thereof, is provided with the resonance groove in last resonant body and the following resonant body, and the top and bottom of resonance groove and dividing plate are formed resonant cavity and following resonant cavity respectively; And electromagnetic wave by any reception/transmitter propagate into resonant cavity or down the resonant cavity end the path of process equate.
Described going up on the resonant body is provided with 2 by array way
nIndividual resonant chamber, n are positive integer; The resonant chamber lower end is provided with down the resonance hole, and the side is provided with side resonance hole, and following resonance hole communicates with following resonant cavity by the perforate on the dividing plate, and side resonance hole directly communicates with last resonant cavity; The electromagnetic wave that receives is respectively vertical component and horizontal component at the two-way that the resonant chamber branch is orthogonal, and the electromagnetic wave of vertical component is by resonant cavity under the resonance hole is imported into down, and the electromagnetic wave of horizontal component imports resonant cavity into by side resonance hole; Electromagnetic vertical component warp by resonant cavity transmission down imports resonant chamber in the resonance hole down, import resonant chamber by the electromagnetic horizontal component that last resonant cavity sends into through side resonance hole, the electromagnetic vertical component of transmission and horizontal component are sent after superposeing in resonant chamber.
Described reception/transmitter and diverter are respectively 2
nIndividual, be installed on respectively above the resonant chamber of resonant body; The electromagnetic wave that reception/transmitter receives imports resonant chamber into after the diverter break-in; The electromagnetic wave that resonant chamber sends is sent by reception/transmitter after the diverter break-in.
The described resonant cavity of going up is multistage T-shape tree with following resonant cavity, is made up of n+1 level resonance arm, and m level resonance arm has 2
M-1Individual, m is from 1 successively to n+1, equate with the path of the resonance arm of one-level, n+1 level resonance arm and the side resonance hole of resonant chamber or down the resonance hole link to each other;
Position relative with side resonance hole or following resonance hole in the described n+1 level resonance arm is provided with reflector, and reflector is made up of one or more steps, and the height of each step is 1/4 wavelength; Receive the electromagnetic wave of coming by resonant chamber and after the reflector reflection, change at its place of sending out, phase angle, import into then in the n+1 level resonance arm; Change at its place of sending out, phase angle after the reflector reflection by the electromagnetic wave that sends in the n+1 level resonance arm, be sent to resonant chamber then.
The electromagnetic wave that passes the vertical component of coming from following resonance hole is after the reflector reflection, enter down in the n+1 level resonance arm of resonant cavity, can make that electromagnetic wave amplitude in two corresponding n+1 level resonance arms equates, direction is opposite, by the electromagnetic wave principle of stacking, double being superimposed in the n level resonance arm of electromagnetic energy propagated; Electromagnetic wave in two correspondence n level resonance arms still is that amplitude equates, direction is opposite, double being superimposed in the n-1 level resonance arm of electromagnetic energy propagated, the electromagnetic wave that continues to propagate in the 2nd grade of resonance arm of two correspondences also is that amplitude equates, direction is opposite, at last double being superimposed in the 1st grade of resonance arm of electromagnetic energy is transmitted on the vertical plate;
The electromagnetic wave that passes the horizontal component of coming from side resonance hole is after the reflector reflection, enter in the n+1 level resonance arm of resonant cavity, can make that electromagnetic wave amplitude in two corresponding n+1 level resonance arms equates, direction is opposite, by the electromagnetic wave principle of stacking, double being superimposed in the n level resonance arm of electromagnetic energy propagated; Electromagnetic wave in two correspondence n level resonance arms still is that amplitude equates, direction is opposite, double being superimposed in the n-1 level resonance arm of electromagnetic energy propagated, the electromagnetic wave that continues to propagate in the 2nd grade of resonance arm of two correspondences also is that amplitude equates, direction is opposite, at last double being superimposed in the 1st grade of resonance arm of electromagnetic energy is transmitted on the horizontal plate;
The 1st grade of resonance arm of the downward resonant cavity of vertical plate sends the electromagnetic wave of vertical component, by the electromagnetic wave principle of stacking, the electromagnetic wave of vertical component is transmitted to the 2nd grade of resonance arm of two correspondences along the 1st grade of resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, this electromagnetic wave is transmitted to two corresponding 3rd level resonance arms along the 2nd grade of resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, continue propagating down is transmitted to two correspondence n+1 level resonance arms up to this electromagnetic wave along n level resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half sends from following resonance hole after the reflector reflection is covert;
Make progress the 1st grade of resonance arm of resonant cavity of horizontal plate sends the electromagnetic wave of horizontal component, by the electromagnetic wave principle of stacking, the electromagnetic wave of horizontal component is transmitted to the 2nd grade of resonance arm of two correspondences along the 1st grade of resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, this electromagnetic wave is transmitted to two corresponding 3rd level resonance arms along the 2nd grade of resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, continue propagating down is transmitted to two correspondence n+1 level resonance arms up to this electromagnetic wave along n level resonance arm and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half sends from side resonance hole after the reflector reflection is covert.
Reception/transmission the face of described reception/transmitter is that the side of positive truncated rectangular pyramids side shape is tubaeform, and the outer end is big end, and the inner is that small end links to each other with diverter; The reception of reception/transmitter/transmission face receives electromagnetic wave and imports in the diverter, and the electromagnetic wave that diverter sends sends through the reception/transmission face of reception/transmitter.
Described reception/transmitter also can be formed with reception/transmission terminal by little band is dull and stereotyped, and reception/transmission terminal is located at the dull and stereotyped center of little band and is stretched in the diverter; Little band is dull and stereotyped to receive electromagnetic wave after reception/transmission terminal imports in the diverter, and the electromagnetic wave that diverter sends is sent by little band flat board through reception/transmission terminal.
Perhaps, the main body of described reception/transmitter is a cuboid sylphon, is provided with opening for four jiaos at the cuboid sylphon, has perforate to link to each other with diverter below the cuboid sylphon; Reception/transmitter receives electromagnetic wave after the perforate below the cuboid sylphon is imported in the diverter by four jiaos of openings of establishing, and the perforate of electromagnetic wave below the cuboid sylphon that diverter sends sent by four jiaos of openings of establishing by reception/transmitter.
Described diverter is inclined tube or bend pipe, and inclined tube or bend pipe are 0 to 90 degree, and the endoporus of inclined tube or bend pipe can one or more snippets square opening and/or circular port.
Can also be provided with transition between described reception/transmitter and diverter, transition is a straight-run of pipe, and hole shape is identical with the receiving plane small end of reception/transmitter in it; Also can be identical with the endoporus of diverter upper end; All right upper end is identical with the endoporus of diverter upper end with the identical lower end of receiving plane small end of reception/transmitter, and middle the employing seamlessly transits.
By above technical scheme flatwise type flat-plate satellite communication antenna described in the utility model as can be known, comprise reception/transmitter, diverter, resonant body; Reception/transmitter is connected with resonant body by diverter; Reception/transmitter is used for receiving and sends electromagnetic wave, and diverter can be transformed into electromagnetic wave at any angle that vertical direction is imported resonant body into or the electromagnetic wave of the vertical direction of launching in the resonant body is transformed into and arbitrarily angledly sent by reception/transmitter; Do not need the angle of pitch when therefore installing, horizontal positioned just can send and receive electromagnetic wave well.
Resonant body is made up of last resonant body, following resonant body and dividing plate each other thereof, is provided with the resonance groove in last resonant body and the following resonant body, and the top and bottom of resonance groove and dividing plate are formed resonant cavity and following resonant cavity respectively; Last resonance ditch chamber is multistage T-shape tree with following resonant cavity, be made up of n level resonance arm, m level resonance arm has 2m-1, m from 1 successively to n, path with the resonance arm of one-level equates, arbitrarily receptions/transmitter to last resonant cavity or time resonant cavity end the path of process equate.Electromagnetic wave is superimposed to the 1st grade of resonance arm successively by m level resonance arm, or is divided successively to m level resonance arm by the 1st grade of resonance arm, therefore can do antenna gain greatly according to the communication needs; In addition because the employing resonant cavity transmits electromagnetic wave, so the receive-transmit isolation height can bear high-power.
Description of drawings
Fig. 1 is structural representation Fig. 1 of flatwise type flat-plate satellite communication antenna described in the utility model;
Fig. 2 is structural representation Fig. 2 of flatwise type flat-plate satellite communication antenna described in the utility model;
Fig. 3 is structural representation Fig. 3 of flatwise type flat-plate satellite communication antenna described in the utility model;
Fig. 4 is a structural representation of going up resonant body described in the utility model;
Fig. 5 is the structural representation of resonant body down described in the utility model;
Fig. 6 is the cutaway view 1 of diverter described in the utility model;
Fig. 7 is that the A of cutaway view 1 correspondence of diverter described in the utility model is to view;
Fig. 8 is the cutaway view 2 of diverter described in the utility model;
Fig. 9 is that the B of cutaway view 2 correspondences of diverter described in the utility model is to view;
Figure 10 is the cutaway view 3 of diverter described in the utility model;
Figure 11 is that the C of cutaway view 3 correspondences of diverter described in the utility model is to view;
Figure 12 is the cutaway view 4 of diverter described in the utility model;
Figure 13 is the cutaway view 5 of diverter described in the utility model and transition;
Figure 14 is a cavity resonant schematic diagram 1;
Figure 15 is a cavity resonant schematic diagram 2;
Figure 16 is a cavity resonant schematic diagram 3;
Figure 17 is a cavity resonant schematic diagram 4;
Figure 18 is a cavity resonant schematic diagram 5;
Figure 19 is electromagnetic wave principle of stacking figure;
Figure 20 is the cutaway view 1 of reception/transmitter described in the utility model and diverter;
Figure 21 is that reception/transmitter described in the utility model D corresponding with reception/transmitter in the diverter cutaway view 1 is to view;
Figure 22 is the cutaway view 2 of reception/transmitter described in the utility model and diverter;
Figure 23 is that reception/transmitter described in the utility model E corresponding with reception/transmitter in the diverter cutaway view 2 is to view;
Figure 24 is the cutaway view 6 of diverter described in the utility model;
Figure 25 is that the F of cutaway view 6 correspondences of diverter described in the utility model is to partial view 1;
Figure 26 is that the F of cutaway view 6 correspondences of diverter described in the utility model is to partial view 2.
Embodiment
Flatwise type flat-plate satellite communication antenna described in the utility model, its embodiment such as Fig. 1 and reception/transmitter 1, diverter 2 and the resonant body of comprising shown in Figure 2; Reception/transmitter 1 is connected with resonant body by diverter 2.
Reception/transmission the face of reception/transmitter 1 (inner surface) is that the side of positive truncated rectangular pyramids side shape is tubaeform, and the outer end is big end, and the inner is that small end links to each other with diverter 2.
As Fig. 6 and diverter shown in Figure 72 is an inclined tube, and the angle of inclined tube is 0 to 90 degree, and inclined tube is a square inner bore.
Resonant body is made up of last resonant body 5, following resonant body 8 and dividing plate each other 6 thereof, as Fig. 1, Fig. 2 and Figure 4 shows that a unit of resonant body 5, each unit is provided with 16 resonant chambers 3 by array way, and resonant chamber 3 lower ends are provided with down resonance hole 11, and the side is provided with side resonance hole 4.Above-mentioned reception/transmitter 1 respectively has 16 with diverter 2 corresponding these unit.Be installed on resonant chamber 3 tops of resonant body 5 respectively.
Be provided with the resonance groove in the above-mentioned last resonant body 5, the upper surface of resonance groove and dividing plate 6 is formed upward resonant cavity; Last resonant cavity is multistage T-shape tree, the last resonant cavity of a corresponding unit is made up of 5 grades of resonance arms 12, the 5th grade of resonance arm 12 has 16, the 4th grade of resonance arm 12 has 8,3rd level resonance arm 12 has 4, and the 2nd grade of resonance arm 12 has 2, and the 1st grade of resonance arm 12 has 1, path with the resonance arm 12 of one-level equates that the 5th grade of resonance arm 12 links to each other with the side resonance hole 4 of resonant chamber 3.
Similar to last resonant body 5, also be provided with the resonance groove in the following resonant body 8, the lower surface of resonance groove and dividing plate 6 is formed resonant cavity down; Following resonant cavity is multistage T-shape tree, the following resonant cavity of a corresponding unit is made up of 5 grades of resonance arms 12, the 5th grade of resonance arm 12 has 16, the 4th grade of resonance arm 12 has 8,3rd level resonance arm 12 has 4, and the 2nd grade of resonance arm 12 has 2, and the 1st grade of resonance arm 12 has 1, path with the resonance arm 12 of one-level equates that the 5th grade of resonance arm 12 links to each other with the side resonance hole 11 of resonant chamber 3 by the through hole 7 on the dividing plate 6.
The 1st grade of above-mentioned resonance arm 12 can change the direction of the 1st grade of resonance arm 12 by the position that changes baffle plate 13.To realize the combination of a plurality of unit.
Position relative with side resonance hole or following resonance hole in the 5th grade of above-mentioned resonance arm 12 is provided with reflector 9, and reflector 9 is made up of a plurality of steps, and the height of each step is 1/4 wavelength.
Last resonant body 5 can be by 2 with following resonant body 8
kIndividual unit (k is a nonnegative integer) is formed, and going up resonant body 5 like this has 2
n Individual resonant chamber 3, n are more than or equal to 4 positive integers.Because n is not less than having in actual applications in all senses under 4 the situation, its work is reasonable to be same as n for more than or equal to 4 situation, is not discussed here.Corresponding simultaneously upward resonant body 5 all is made up of n+1 level resonance arm with following resonant body 8, and m level resonance arm has 2
M-1Individual, m from 1 successively to n+1.
As Fig. 8 and shown in Figure 9, above-mentioned diverter 2 is an inclined tube, and inclined tube is 0 to 90 degree, and the endoporus of inclined tube is that the step-like circular hole of one section square hole and multistage is formed.
As Figure 10 and shown in Figure 11, above-mentioned diverter 2 is an inclined tube, and inclined tube is 0 to 90 degree, and the endoporus of inclined tube is that one a section square hole and a circular hole are formed.
As shown in figure 12, above-mentioned diverter 2 is a bend pipe, and bend pipe is 0 to 90 degree, and the endoporus of bend pipe is a circular hole, and both ends of the surface are provided with square flange and link to each other with resonant chamber 3 with reception/transmitter 1 respectively.
As Fig. 3 and shown in Figure 13,2 of above-mentioned reception/transmitter 1 and diverters can also be provided with transition 14, and transition 14 is a straight-run of pipe, and the interior hole shape of the transition 14 among Fig. 3 is identical with the receiving plane small end of reception/transmitter; The interior hole shape of the transition 14 among Figure 13 is identical with the endoporus of diverter upper end.
As Figure 20 and shown in Figure 21, above-mentioned reception/transmitter is made up of little band dull and stereotyped 15 and reception/transmission terminal 16, and reception/transmission terminal 16 is located at dull and stereotyped 15 centers of little band and is stretched in the diverter 2.
As Figure 22 and shown in Figure 23, the main body of above-mentioned reception/transmitter is a cuboid sylphon, is provided with opening 17 for four jiaos at the cuboid sylphon, has perforate to link to each other with diverter below the cuboid sylphon.
As Figure 24, Figure 25 and shown in Figure 26, above-mentioned diverter 2 is a bend pipe, and bend pipe is 0 to 90 degree, and the endoporus of bend pipe is a square hole, square hole be shaped as square or rectangular.
Introduce below is that electromagnetic wave receives and the transmission principle:
Reception/transmitter 1 of the present utility model has three kinds of feature structures:
1, when the reception/transmission face of reception/transmitter 1 was the side flaring structure of positive truncated rectangular pyramids side shape, reception/transmitter 1 can be treated as cavity, and this moment, electromagnetic wave can be by cavity resonant principle and 2 propagation of diverter in reception/transmitter 1.When receiving electromagnetic wave, the electromagnetic wave major part directly passes to the diverter 2 of the small end connection of reception/transmitter 1, and electromagnetic little part is refracted into diverter 2 through the reception/transmission face of reception/transmitter 1.When sending electromagnetic wave, diverter 2 is sent electromagnetic wave and is sent through reception/transmitter 1.
2, when reception/transmitter 1 is made up of little band dull and stereotyped 15 and reception/transmission terminal 16, because reception/transmission terminal 16 is located at dull and stereotyped 1 center of little band and is stretched in the diverter 2; Little band dull and stereotyped 15 receives electromagnetic wave after reception/transmission terminal 16 imports in the diverter 2, and the electromagnetic wave that diverter 2 sends is sent by little band dull and stereotyped 15 through reception/transmission terminal 16.
3, when the main body of reception/transmitter 1 is a cuboid sylphon, owing to be provided with opening 17 for four jiaos, there is perforate to link to each other below the cuboid sylphon with diverter 2 at the cuboid sylphon; Reception/transmitter 1 receives electromagnetic wave after the perforate below the cuboid sylphon is imported in the diverter 2 by four jiaos of openings of establishing 17, and the perforate of electromagnetic wave below the cuboid sylphon that diverter 2 sends sent by four jiaos of openings of establishing 17 by reception/transmitter 1.
Therefore, above-mentioned three kinds of structures all can realize the propagation of electromagnetic wave 2 of reception/transmitter 1 and diverters.
Because diverter 2, resonant chamber 3, last resonant cavity are cavity with following resonant cavity, so electromagnetic wave can be propagated by the cavity resonant principle in cavity.
The arbitrarily angled electromagnetic wave that reaches diverter 2 is transmitted to resonant chamber 3 through the direction that diverter 2 all can transfer to vertically downward, the two-way that electromagnetic wave was orthogonal at resonant chamber in 3 minutes, be respectively vertical component and horizontal component, the electromagnetic wave of vertical component is by resonant cavity under resonance hole 11 is imported into down, and the electromagnetic wave of horizontal component imports resonant cavity into by side resonance hole 4.
The electromagnetic wave that passes the vertical component of coming from following resonance hole 11 is after reflector 9 reflections, enter down in the n+1 level resonance arm 12 of resonant cavity, can make that electromagnetic wave amplitude in two corresponding n+1 level resonance arms 12 equates, direction is opposite, by the electromagnetic wave principle of stacking, double being superimposed in the n level resonance arm 12 of electromagnetic energy propagated; Electromagnetic wave in two correspondence n level resonance arms 12 still is that amplitude equates, direction is opposite, again double being superimposed in the n-1 level resonance arm 12 of electromagnetic energy propagated, the electromagnetic wave that continues to propagate in the 2nd grade of resonance arm 12 of two correspondences also is that amplitude equates, direction is opposite, at last double being superimposed in the 1st grade of resonance arm 12 of electromagnetic energy is transmitted on the vertical plate.
The electromagnetic wave that passes the horizontal component of coming from side resonance hole 4 is after the reflector reflection, enter in the n+1 level resonance arm 12 of resonant cavity, can make that electromagnetic wave amplitude in two corresponding n+1 level resonance arms 12 equates, direction is opposite, by the electromagnetic wave principle of stacking, double being superimposed in the n level resonance arm 12 of electromagnetic energy propagated; Electromagnetic wave in two correspondence n level resonance arms 12 still is that amplitude equates, direction is opposite, again double being superimposed in the n-1 level resonance arm 12 of electromagnetic energy propagated, the electromagnetic wave that continues to propagate in the 2nd grade of resonance arm 12 of two correspondences also is that amplitude equates, direction is opposite, at last double being superimposed in the 1st grade of resonance arm 12 of electromagnetic energy is transmitted on the horizontal plate.
The 1st grade of resonance arm 12 of the downward resonant cavity of vertical plate sends the electromagnetic wave of vertical component when sending electromagnetic wave, by the electromagnetic wave principle of stacking, the electromagnetic wave of vertical component is divided into amplitude along the 2nd grade of resonance arm 12 of the 1st grade of resonance arm 12 to two correspondence of propagation and equates, direction is opposite, the electromagnetic wave of energy in half, this electromagnetic wave is transmitted to two corresponding 3rd level resonance arms 12 along the 2nd grade of resonance arm 12 and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, continue propagating down is transmitted to two correspondence n+1 level resonance arms 12 up to this electromagnetic wave along n level resonance arm 12 and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half is sent to resonant chamber 3 from following resonance hole 11 after the reflector reflection is covert.
Make progress the 1st grade of resonance arm 12 of resonant cavity of horizontal plate sends the electromagnetic wave of horizontal components, by the electromagnetic wave principle of stacking, the electromagnetic wave of horizontal component is transmitted to the 2nd grade of resonance arm 12 of two correspondences along the 1st grade of resonance arm 12 and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, this electromagnetic wave is transmitted to two corresponding 3rd level resonance arms 12 along the 2nd grade of resonance arm 12 and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, continue propagating down is transmitted to two correspondence m+1 level resonance arms 12 up to this electromagnetic wave along n level resonance arm 12 and is divided into amplitude and equates, direction is opposite, the electromagnetic wave of energy in half, after reflector reflection is covert from side resonance hole 4 to resonant chamber 3.
Electromagnetic vertical component and horizontal component superpose in resonant chamber 3 after diverter 2 conversion has a certain degree is sent by reception/transmitter 1.
Cavity resonant principle described in the above-mentioned argumentation is as follows:
The basic conception of resonant cavity,
The LC resonant tank has obtained using widely in radio communication but the frequency of using along with radio communication is more and more higher.The shortcoming in LC loop is more and more serious.This mainly is:
(1) loss increases.This be the ohmic loss, dielectric loss of conductor and the radiation loss that causes owing to unenclosed construction all along with the raising of frequency increases, this causes the quality factor q value in loop to descend, frequency selectivity degenerates.
(2) size decreases.
In order to improve resonance frequency by following formula:
LC numerical value must reduce, and the size of lumped elements also diminishes with regard to corresponding.This causes the energy storage in loop to reduce, and the parasitic parameter influence of lumped elements becomes big, and power capacity descends.In a word, the resonant tank in that microwave band is made up of common inductance coil and capacitor be not suitable for for the HIGH-POWERED MICROWAVES system at least.
Resonant cavity is exactly to be used for replacing the LC loop in this case.Because LC sees Figure 14 to Figure 18 than the loop to the differentiation of cavity, wherein Figure 14 is common LC loop; In order to improve resonance frequency, must reduce the numerical value of LC, way is the distance between the increase capacitance pole is pulled and the number of turn that reduces inductance coil, up to an only remaining circle, sees Figure 15.Further reduce L again, can be together in parallel, see Figure 16 with a lot of single-turn circular coils; If the number of bridging coil infinitely increases,, just obtained so-called " reentrant cavity " as Figure 17 just join together) shown in.As can be seen from Fig. 17, the electric field of reentrant cavity concentrates on chamber intermediate recess part (be original between capacitor plates) substantially, and magnetic field then concentrates on can manage it part (be original inductance coil in).So it is a kind of excessive form, still approximate some feature that is keeping original lumped parameter LC loop.If raising resonance frequency.The distance of original capacitor plate can be drawn back, just obtain Figure 18) shown in circle lean on the chamber.As can be seen from Fig. 18, the electric field in this chamber and magnetic field have been distributed in the whole chamber.
Electromagnetic field in the resonant cavity is surrounded by conducting wall, so radiationless loss: its high-frequency current is distributed in the inwall in whole chamber, so resistance loss is also little: as to no outstanding requirement in the chamber, generally need not introduce medium, also just not have dielectric loss.So because the Q value in the little chamber of loss is general than high many in LC loop.
There is various ways in the wave resonance chamber.In general, with the cavity that conductor constituted, regardless of its form, can be as resonant cavity.But in fact the geometry of Chang Yong resonant cavity often all is well-regulated, leans on chamber and coaxial cavity etc. as rectangular cavity, circle.
The physical process of electromagnetic viscosimeter and LC loop are closely similar in the resonant cavity, and Just because of this, resonant cavity could play the same purpose in LC loop in microwave band, and replace the LC loop.But an important difference is arranged between them, and exactly: LC has only in the loop concussion to touch and a resonance frequency F
0, and resonant cavity can have unlimited a plurality of concussion to touch and unlimited a plurality of discrete resonance frequencys in principle.This specific character claims many resonances of resonant cavity.
Described electromagnetic wave principle of stacking is as follows:
As shown in figure 19, from P, the input of Q two arms, amplitude equates electromagnetic wave signal simultaneously, but direction is opposite.This moment, the power line of two arms entered behind the O arm because the power line direction is identical, was with superimposed, so the O arm has the energy output of the input of doubling.
The above flatwise type flat-plate satellite communication antenna only is preferable embodiment of the utility model and representational embodiment, and the structure of described flatwise type flat-plate satellite communication also only is representational structure simultaneously; But protection range of the present utility model is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (8)
1, a kind of flatwise type flat-plate satellite communication antenna is characterized in that, comprises reception/transmitter, diverter and resonant body; Reception/transmitter is connected with resonant body by diverter; Resonant body is made up of last resonant body, following resonant body and dividing plate each other thereof, is provided with the resonance groove in last resonant body and the following resonant body, and the top and bottom of resonance groove and dividing plate are formed resonant cavity and following resonant cavity respectively; And electromagnetic wave by any reception/transmitter propagate into resonant cavity or down the resonant cavity end the path of process equate.
2, flatwise type flat-plate satellite communication antenna according to claim 1 is characterized in that described going up on the resonant body is provided with 2 by array way
nIndividual resonant chamber, n are positive integer; The resonant chamber lower end is provided with down the resonance hole, and the side is provided with side resonance hole, and following resonance hole communicates with following resonant cavity by the perforate on the dividing plate, and side resonance hole directly communicates with last resonant cavity.
3, flatwise type flat-plate satellite communication antenna according to claim 1 and 2 is characterized in that described reception/transmitter and diverter are respectively 2
nIndividual, be installed on respectively above the resonant chamber of resonant body.
4, flatwise type flat-plate satellite communication antenna according to claim 1 is characterized in that the described resonant cavity of going up is multistage T-shape tree with following resonant cavity, is made up of n+1 level resonance arm, and m level resonance arm has 2
M-1Individual, m is from 1 successively to n+1, equate with the path of the resonance arm of one-level, n+1 level resonance arm and the side resonance hole of resonant chamber or down the resonance hole link to each other;
5, flatwise type flat-plate satellite communication antenna according to claim 4, it is characterized in that position relative with side resonance hole or following resonance hole in the described n+1 level resonance arm is provided with reflector, reflector is made up of one or more steps, and the height of each step is 1/4 wavelength.
6, flatwise type flat-plate satellite communication antenna according to claim 1 is characterized in that:
Reception/transmission the face of described reception/transmitter is that the side of positive truncated rectangular pyramids side shape is tubaeform, and the outer end is big end, and the inner is that small end links to each other with diverter;
Perhaps, described reception/transmitter is formed with reception/transmission terminal by little band is dull and stereotyped, and reception/transmission terminal is located at the dull and stereotyped center of little band and is stretched in the diverter;
Perhaps, the main body of described reception/transmitter is a cuboid sylphon, is provided with opening for four jiaos at the cuboid sylphon, has perforate to link to each other with diverter below the cuboid sylphon.
7, flatwise type flat-plate satellite communication antenna according to claim 1 is characterized in that described diverter is inclined tube or bend pipe, and inclined tube or bend pipe are 0 to 90 degree, and the endoporus of inclined tube or bend pipe can one or more snippets square opening and/or circular port.
8, according to claim 1,6 or 7 described flatwise type flat-plate satellite communication antennas, it is characterized in that to be provided with transition between described reception/transmitter and diverter, transition is a straight-run of pipe, and hole shape is identical with the receiving plane small end of reception/transmitter in it; Also can be identical with the endoporus of diverter upper end; All right upper end is identical with the endoporus of diverter upper end with the identical lower end of receiving plane small end of reception/transmitter, and middle the employing seamlessly transits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520011756 CN2741207Y (en) | 2004-10-26 | 2005-04-12 | Horizontal planar satellite communicating antenna |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420118231 | 2004-10-26 | ||
| CN200420118231.4 | 2004-10-26 | ||
| CN2004201124501 | 2004-11-08 | ||
| CN 200520011756 CN2741207Y (en) | 2004-10-26 | 2005-04-12 | Horizontal planar satellite communicating antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741207Y true CN2741207Y (en) | 2005-11-16 |
Family
ID=35351485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520011756 Expired - Fee Related CN2741207Y (en) | 2004-10-26 | 2005-04-12 | Horizontal planar satellite communicating antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741207Y (en) |
-
2005
- 2005-04-12 CN CN 200520011756 patent/CN2741207Y/en not_active Expired - Fee Related
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Legal Events
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| C14 | Grant of patent or utility model | ||
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Owner name: SUN SHOUDE Free format text: FORMER OWNER: BEIJING HAIYUTH COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20071109 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20071109 Address after: Unit B4 314 building 100102 Beijing City, Chaoyang District Wangjing District No. 1002 west 3 Patentee after: Sun Shoude Address before: 100051 No. two, Jiuxianqiao Road, Beijing, Chaoyang District Patentee before: Beijing Haiyu Tianhua Communication Equipment Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING HAIYUTH COMMUNICATION EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SUN SHOUDE Effective date: 20071130 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20071130 Address after: No. 2 Jiuxianqiao Road, Chaoyang District, Beijing, zip code: 100015 Co-patentee after: Sun Shoude Patentee after: Beijing sea area Tianhua communication equipment Co., Ltd. Address before: Unit B4 314 building in Beijing City, Chaoyang District Wangjing District No. 1002 west 3, zip code: 100102 Patentee before: Sun Shoude |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20100412 |