CN1783578A - Waveguide input apparatus of two orthogonally polarized waves - Google Patents
Waveguide input apparatus of two orthogonally polarized waves Download PDFInfo
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- CN1783578A CN1783578A CN 200510129430 CN200510129430A CN1783578A CN 1783578 A CN1783578 A CN 1783578A CN 200510129430 CN200510129430 CN 200510129430 CN 200510129430 A CN200510129430 A CN 200510129430A CN 1783578 A CN1783578 A CN 1783578A
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Abstract
A waveguide input apparatus (1) of two orthogonally polarized waves includes a waveguide (la) having two cavities passing through the outer wall thereof to the interior, a first probe (5) provided protruding from an inner wall of the waveguide (1a) via a first cavity so that the leading end is parallel to a first plane of polarization (2), a second probe (7) provided protruding from the inner wall of the waveguide (la) via a second cavity so that the leading end is parallel to a second plane of polarization (3), and a circuit board (4) provided at the outer wall of the waveguide (la) so as to be parallel to the second plane of polarization (3), and having the first probe (5) and the second probe (7) connected thereto. A converter for satellite broadcasting receiver employing this apparatus is also provided.
Description
The application is that Waveguide input apparatus, the application people that the application number submitted on January 14th, 1998 is 200510074772.0, denomination of invention is two orthogonally polarized waves dividing an application for Sharp Corp.
Technical field
The present invention relates to a kind of Waveguide input apparatus of two orthogonally polarized waves.Specifically, the present invention relates to the improvement of the Waveguide input apparatus of two orthogonally polarized waves, it is characterized in that receiving the structure of the waveguide input unit of the electromagnetic frequency converter that is used for satellite broadcasting and communication control processor of with mutually orthogonal polarization plane two, and the frequency converter that is used for satellite broadcasting and communication control processor (hereinafter referred to as " satellite broadcast receiver ") that uses the waveguide of this two orthogonally polarized waves.
Background technology
Below in conjunction with Figure 16 A-16C an example of the Waveguide input apparatus of two traditional orthogonally polarized waves is described.Figure 16 A is the profile along the section S-S of Figure 16 C.
The Waveguide input apparatus 90 of two orthogonally polarized waves comprises: a waveguide 90a who is used to introduce polarized wave, a probe 25 that is used to receive vertically polarized wave, it is connected to waveguide 90a with the direction of the polarization plane 2 that is parallel to vertically polarized wave, direction with the polarization plane 3 that is parallel to horizontal polarized wave is connected to the probe 26 of waveguide 90a, a short bar 6, one is connected to probe 25 and arranges circuit board 27 on the present 29a in the mode that is orthogonal to probe 25, a circuit board 28 and a coupling part 31 that is used for connecting circuit plate 27 and circuit board 28 that is connected to probe 26 and arranges present 29b in the mode that is orthogonal to probe 26.
Waveguide 90a forms a short circuit wall 8 at inwall.Two probes 25 and 26 are connected to waveguide 90a with the direction that is parallel to polarization plane 2 and 3 respectively.Each element arranged with orthogonal manner and realize probe 25 and 26 and circuit board 27 and 28 between connection.A 29a and 29b are set on the outer wall of waveguide 90a, and probe 25 and 26 is stretched out by seat respectively. Circuit board 27 and 28 is connected respectively on a 29a and the 29b.The polarization plane 2 and the polarization plane 3 that are received by waveguide 90a are mutually orthogonal.Vertically polarized wave is corresponding to polarization plane 2, and horizontal polarized wave is corresponding to polarization plane 3.Probe 25 and short bar 6 are set to present vertically polarized wave and polarized signal is sent to circuit board.Probe 26 and short circuit wall 8 are set to present horizontal polarized wave and polarized signal is sent to circuit board.
Below in conjunction with accompanying drawing 17A-17C another example of the Waveguide input apparatus of two orthogonally polarized waves is described.Figure 17 A is the profile along the cross section T-T of Figure 17 C.
The Waveguide input apparatus 100 of two orthogonally polarized waves comprises: waveguide 100a, respectively to be parallel to the probe 34 and 35 that mutually orthogonal two polarization planes 2 are connected with 3 direction, be connected to probe 34 and 35 and to become about 45 that circuit board 32 on present 33 is installed respectively with probe 34 and 35.
Be connected with circuit board 32 on the seat 33 of the circuit board 32 that the outer wall of waveguide 100a forms, it is with respect to the angle at 45 of polarization plane 2 and 3.Therefore, circuit board 32 receptions are from two signals of probe 34 and 35.More particularly, probe 34 and 35 receives two orthogonally polarized waves respectively.Probe 34 sends to circuit board 32 with the polarized signal of the polarization plane 2 of reception.Probe 35 sends to circuit board 32 with the polarized signal of the polarization plane 3 of reception.Circuit anti-32 integrates these polarized signals.
In order in the Waveguide input apparatus of input structure, to amplify and comprehensive probe 25 and 26 signals that are used to export that receive, a circuit that signal is provided to circuit board 27 and 28 from probe 25 and 26 respectively must be set with Figure 16 A-16C description.Yet the signal synthesis device of circuit board 27 is essential, from the signal of another circuit board 28 must be through the coupling part 31 circuit boards 27 that send to the band integration unit.
Aforesaid signal transmission will increase the complexity of circuitous pattern and structure.In addition, because polarized signal has high frequency, have the possibility that increases loss of signal and inductive interference.Owing to must consider key factor when arranging circuitous pattern, so circuit design is very difficult.In the assembling of waveguide, must connect two circuit boards 27 and 28, from the viewpoint of high frequency, must SC when plate is connected to coupling part 31.This work is very difficult, can cause the increase of cost.
Benefit with Waveguide input apparatus of the input structure that Figure 17 A-17C describes is, owing to have only a plate, thereby do not need two plates are connected together with line.Yet, on this device, form (two) PRECISION HOLE, insert probe 34 and 35 with central plane with 45 with respect to the seat 33 of circuit board 32, the structural design of seat will become complicated.And high-caliber operative skill must be arranged.This means that manufacturing cost will increase because assembly working becomes complicated, and task has become difficulty.And quality fluctuation increases in the production in enormous quantities.Therefore, if each device is not regulated, just can not satisfy performance requirement.
The frequency converter that is used for satellite broadcast receiver is a kind of like this device, and it has adopted the waveguide assembly of two orthogonally polarized waves.The frequency converter that is used for satellite broadcast receiver has the problem of the waveguide assembly existence of above-mentioned two orthogonally polarized waves.
Summary of the invention
According to above, the purpose of this invention is to provide a kind of Waveguide input apparatus that makes two orthogonalization ripples that circuit design becomes more convenient, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Another object of the present invention provides and a kind ofly makes the circuit design of probe coupling part and the Waveguide input apparatus of two orthogonally polarized waves that structural design becomes more convenient, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Further purpose of the present invention provides and a kind ofly makes the structural design of circuit design, probe coupling part and the Waveguide input apparatus of two orthogonalization ripples that probe technology becomes more convenient, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Another purpose of the present invention provides a kind of structural design of circuit design, probe coupling part, probe technology is connected the pairwise orthogonal polarized wave that becomes more convenient with probe Waveguide input apparatus and a kind of frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus of making.
Another object of the present invention provides a kind of structural design, probe technology that makes circuit design, probe linkage unit is connected two orthogonally polarized waves with low manufacturing cost that become more convenient with probe Waveguide input apparatus, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
A further object of the invention provides a kind of structural design, probe technology that makes circuit design, probe linkage unit is connected two orthogonally polarized waves with low material cost that become more convenient with probe Waveguide input apparatus, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
A further object of the invention provides a kind of structural design, probe technology that makes circuit design, probe linkage unit is connected two orthogonally polarized waves with low material cost and low packaging technology cost that become more convenient with probe Waveguide input apparatus, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Further purpose of the present invention provides a kind of structural design, probe technology of circuit design, probe coupling part of making and is connected more convenient the having low manufacturing cost and in making in batches the Waveguide input apparatus of two orthogonally polarized waves of superiority is arranged more that become with probe, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Attached purpose of the present invention provides a kind of structural design, probe technology of circuit design, probe coupling part of making and is connected more convenient the having low manufacturing cost and in batch process and receiver identity the Waveguide input apparatus of two orthogonally polarized waves of superiority is arranged that become with probe, and the frequency converter that is used for satellite broadcast receiver that uses this Waveguide input apparatus.
Waveguide input apparatus according to two orthogonally polarized waves of the present invention comprises the waveguide of one the one end open circuit other end with the sealing of short circuit wall, first polarized wave and second polarized wave are introduced wherein, first and second polarized waves have first polarization plane and second polarization plane respectively, and both are mutually orthogonal.This waveguide has two cavitys that extend through inside by its outer wall.The Waveguide input apparatus of two orthogonally polarized waves comprises that also one is stretched out and makes front end be parallel to first probe of first polarization plane through first cavity from the inwall of waveguide, one is stretched out through second cavity from the inwall of waveguide and makes front end be parallel to second probe of second polarization plane, is positioned on the outer wall parallel with second polarization plane and be connected to the circuit board of first and second probes with one.The frequency converter that is used for satellite broadcast receiver with the Waveguide input apparatus that uses this two orthogonally polarized waves can be realized identical effect.
Because first and second probes are connected on the common circuit board, the entire circuit that is used for the output of comprehensive first and second probes can be formed on common circuit board, thereby helps design.In addition, owing to only use a plate, so material cost is not expensive.Because after first and second probes all accurately are connected to circuit board, first and second probes are connected to this waveguide, this probe just can be located in waveguide more accurately.Therefore, can obtain good receiver identity.
Second probe preferably includes a core conductor.Core conductor comprise one from circuit board in the first that the interior wall of waveguide is stretched out, be bent to form with a front end by first so as parallel with second polarization plane and with first polarization plane fore-end that forms of right angle basically.In addition, second probe preferably have with the first of the parallel formation of first polarization plane and both with first also with first polarization plane front end that forms with bend mode at right angle basically.
Second probe also can comprise a medium that covers the first of core conductor.Can form the part of waveguide inwall in the end of the front medium of second probe.The surface of medium covers with metallic film.Second probe can be connected to circuit board so that the leading section of second probe can be orthogonal in the plane that is parallel to second polarization plane in the predetermined angular range that the direction of waveguide core axle is the center departs from.
According to a further aspect in the invention, the Waveguide input apparatus of two orthogonally polarized waves comprises a waveguide, to introduce first polarized wave and second polarized wave, they have the first mutually orthogonal polarization plane and second polarization plane respectively, and an end of waveguide is opened a way and other end short circuit wall sealing.Waveguide has by first outer wall and extends through first cavity of its inside and extend through the second inner cavity by second outer wall.The Waveguide input apparatus of two orthogonally polarized waves comprises: the inwall from waveguide stretches out so that front end is parallel to first probe of first polarization plane through first cavity; Inwall from waveguide stretches out by second cavity so that front end is parallel to second probe of second polarization plane; Have first, the second portion that connects second probe that is connected first probe, the circuit board section that connects the flexible portion of described first and second parts with one.
The elbow of the waveguide outer wall that is connected with the flexible portion of circuit board preferably roughly is molded as circular arc.
Description of drawings
Detailed description of the present invention in conjunction with the drawings, above and other objects of the present invention, feature and advantage will become apparent.
Figure 1A, 1B, 1C are respectively preceding profile, end view and the plane graphs according to the Waveguide input apparatus of two orthogonally polarized waves of the first embodiment of the present invention.
Fig. 2 A represents the incoming frequency of Waveguide input apparatus of two orthogonally polarized waves of the first embodiment of the present invention and the relation between the cross polarization characteristics.
Fig. 2 B represents the incoming frequency and the relation of input between the return loss of Waveguide input apparatus of two orthogonally polarized waves of the first embodiment of the present invention.
Fig. 3 is the exploded perspective illustration according to the Waveguide input apparatus of two orthogonally polarized waves of the first embodiment of the present invention.
Fig. 4 is to use the schematic block diagram according to the satellite broadcasting frequency converter of the Waveguide input apparatus of two orthogonally polarized waves of the first embodiment of the present invention.
Fig. 5,6,7 and 8 be respectively according to of the present invention second, third, the preceding profile of the Waveguide input apparatus of two orthogonally polarized waves of the 4th and the 5th embodiment.
Fig. 9 A, 9B and 9C are respectively preceding profile, end view and the plane graphs of the Waveguide input apparatus of two orthogonally polarized waves according to a sixth embodiment of the invention.
Figure 10 A, 10B and 10C are respectively preceding profile, end view and the plane graphs of the Waveguide input apparatus of two orthogonally polarized waves according to a seventh embodiment of the invention.
Figure 11 A, 11B are respectively according to the plane graph of the Waveguide input apparatus of two orthogonally polarized waves of the eighth embodiment of the present invention, preceding profile.
Figure 12 A and 12B are respectively according to the plane graph of the Waveguide input apparatus of two orthogonally polarized waves of the ninth embodiment of the present invention and preceding profile.
Figure 13 is the preceding profile according to the Waveguide input apparatus of two orthogonally polarized waves of the tenth embodiment of the present invention.
Figure 14 A and 14B are respectively according to the plane graph of the Waveguide input apparatus of two orthogonally polarized waves of the 11st embodiment of the present invention and preceding profile.
Figure 15 A and 15B are respectively according to the plane graph of the Waveguide input apparatus of two orthogonally polarized waves of the 12nd embodiment of the present invention and preceding profile.
Figure 16 A, 16B and 16C are respectively preceding profile, end view and the plane graphs of Waveguide input apparatus of two orthogonally polarized waves of prior art.
Figure 17 A, 17B and 17C are respectively preceding profile, end view and the plane graphs of Waveguide input apparatus of two orthogonally polarized waves of another prior art.
Embodiment
Below in conjunction with the Waveguide input apparatus 1 of Figure 1A-1C description according to two polarized waves of the first embodiment of the present invention.In Figure 1A-1C and 16A-16C, identical parts are represented with identical label, and their title all is identical with effect.Therefore, it is described in detail no longer and repeats.
Polarization plane 3 (horizontal polarized wave) and circuit board 4 be arranged in parallel, and another polarization plane 2 (vertically polarized wave) and two probes 5 and 7 be arranged in parallel.Probe 5 and 7 all is connected to circuit board 4.The front end 10 of the core conductor 9 in probe 7 stretches out from the inwall of waveguide 1a with a certain direction and bends to the right angle basically.Probe 7 cavity that insertion forms thereon above waveguide 1a.Figure 1A-1C represents the state of linking probe 7.Shown in Figure 1A-1C, when being in connection status, probe 7 constitutes cavity 1b.Main with the material as waveguide 1a such as zine pressure casting, aluminium diecasting, use resin such as polyethylene and polytetrafluoroethylene as the material of probe 5 and 7, use metal such as brass, nickel as the material of core conductor 9.
According to first embodiment, two probes 5 that are used to receive two orthogonally polarized waves are all received identical circuit board 4 with 7.Two probes 5 with 7 on the direction of the outer wall that is orthogonal to waveguide 1a parallel to each other the connection.
Compare with 7 situations that are connected to independent circuit board with two probes 5, simplified the circuit design that comprises the circuitous pattern of arranging that the polarized wave make two high-frequency signals is comprehensive.Owing to only need a circuit board, can reduce material cost.Therefore a kind of Waveguide input apparatus with two orthogonally polarized waves of good cross-polarization performance and input return loss can be provided.
Compare with 7 situations that are connected the outer wall of waveguide with 45 with probe 5, use the molded hole that forms, can simplify the technology that the structural design of probe coupling part is connected with probe, and, improve probe and connected operability.So, can provide the batch process that the packaging technology cost is reduced to have the Waveguide input apparatus of two orthogonally polarized waves of superiority.
Below in conjunction with Fig. 2 A and 2B by and prior art the relation between incoming frequency and the input return loss is relatively described between the incoming frequency and cross polarization characteristics according to the Waveguide input apparatus of two orthogonally polarized waves of present embodiment.In Waveguide input apparatus according to two orthogonally polarized waves of present embodiment, needn't be for the increase of the loss of signal that prevents to have the high frequency polarized signal and interference to the consideration of the complicated layout of circuitous pattern, therefore simplified the circuitous pattern design.In the assembling process of circuit board, also unnecessary consideration circuit board is to the processing of high-frequency signal.Can be understood by Fig. 2 A and 2B, it is to have improved that cross polarization characteristics and input return loss are compared with the Waveguide input apparatus of traditional two orthogonally polarized waves.
Fig. 3 is the exploded perspective illustration of expression according to the package assembly of the frequency converter that is used for satellite broadcast receiver 61 of the Waveguide input apparatus of two orthogonally polarized waves of use of first embodiment.With reference to Fig. 3, probe 5 and 7 is inserted in respectively among the predetermined hole 1c and 1b on the base plate 45 that comprises circular waveguide 1a.At this, circuit board 4 be mounted to make probe 5 and 7 core conductor by being formed on the hole separately on the circuit board 4. Probe 5 and 7 core conductor are connected to the circuitous pattern 48 and 49 that is formed on the circuit board 4 respectively by welding etc.Circuit board 4 and screening cover 46 screw 47 by separately is fixed to base plate 45 in fixing hole 51 and 52 is screwed into hole 53 on the base plate 45.The circuit that forms frequency converter is formed on the plane in the face of the circuit board 4 of base plate 45.This circuit will be sketched in the back.
Vertically polarized wave in the circular waveguide and horizontal polarized wave are reflected at short bar 6 and short circuit wall 8 places, are received by probe 5 and 7, send to the circuit that forms frequency converter on circuit board 4 respectively.This signal is exaggerated and is transformed into intermediate-freuqncy signal on circuit board 4, sends to the output 44 that is fixed to base plate 45 and is output.
Fig. 4 represents to be formed on the circuit diagram that is used for the frequency converter of satellite broadcast receiver on the circuit board 4.With reference to Fig. 4, this frequency converter comprises a LNA (low noise amplifier) 62 who is used to amplify from the signal of probe 5 and 7, reception is from the filter 63 of the output of LAN62,68, one of local oscillator is used for comprehensively the frequency mixer 64 from the output signal of filter 63 and local oscillator 68, is used to be transformed into intermediate-freuqncy signal, an intermediate frequency amplifier 65, be used to amplify output signal and power supply 67, be used for to each circuit supply through the frequency mixer 64 of output 44 outputs.
LNA62 comprises: amplifier 71, the output signal that is used for amplifying probe 5, amplifier 72, the output signal that is used for amplifying probe 7, switch 74, be used for the output of under the control of the operating voltage of frequency converter switched amplifier 71 and 72, amplifier 73 is used to amplify the output of switch 74 and the output after amplifying is provided to filter 63.
The polarized wave of introducing waveguide 1a is provided to LNA62 through probe 5 and 7.Choose one wantonly by switch 74 and offer filter 63.Output signal from filter 63 carries out comprehensively being transformed into intermediate-freuqncy signal by frequency mixer 64 and from the output signal of local oscillator 68.This intermediate-freuqncy signal is further enlarged by intermediate frequency amplifier 65, through output 44 outputs.
By using according to the Waveguide input apparatus of two orthogonally polarized waves of first embodiment frequency converter as satellite broadcast receiver, the element cost of the Waveguide input apparatus of two orthogonally polarized waves drops to low limit.Because its assembling easily, so can reduce the manufacturing cost of frequency converter itself.Use the Waveguide input apparatus of two orthogonally polarized waves of first embodiment to have the advantage that is suitable for producing in batches, and receiver identity can be done finely.
Fig. 3 and frequency converter shown in Figure 4 not only may be used on the Waveguide input apparatus of two orthogonally polarized waves of first embodiment, and may be used on the Waveguide input apparatus according to two orthogonally polarized waves of the second to the 12 embodiment of the present invention.Except having the described advantage of first embodiment, each embodiment also has other advantage.
Described below in conjunction with Fig. 5-8 pair of Waveguide input apparatus according to two orthogonally polarized waves of second to the 5th embodiment of the present invention corresponding to the profile of the cross section I-I of Fig. 1 C.
As shown in Figure 5, the Waveguide input apparatus of two orthogonally polarized waves according to a second embodiment of the present invention and the difference of the Waveguide input apparatus shown in Figure 1A-1C are, the medium 11 that centers on the core conductor 9 of probe 7a forms the part 12 of the inwall of the waveguide 30a that seals described hole, and covers with thin- film material 12a and 13a respectively at the surface local 12 and 13 of medium 11.Dielectric constant by regulating medium 11 so as in waveguide matched impedance, regulate the angle of bend 17 of core conductor 9 so that the impedance of coupling in waveguide just can keep superior performance.
Waveguide input apparatus below in conjunction with two orthogonally polarized waves of 6 pairs of a third embodiment in accordance with the invention of accompanying drawing is described.The difference of the Waveguide input apparatus of two orthogonally polarized waves of the 3rd embodiment and the Waveguide input apparatus of two orthogonally polarized waves shown in Figure 1A-1C is that probe 7b comprises around the conductor part 15 of the part of the medium 14 of core conductor 9 and formation waveguide inwall.Similar to the situation of Fig. 5, the hole of probe 7b sealing waveguide 40a.Current-carrying part 15 and medium 14 are made of independent member.Conductor 15 is introduced after inserting probe 7b.Protuberance 15a is set to drop down to prevent conductor 15.The shape that has the medium 14 of dielectric constant and regulate sweep 16 by use is come the impedance in the matched waveguide, and the core conductor that has the angle of bend of adjusting by use keeps high-performance.
To be described the Waveguide input apparatus of two orthogonally polarized waves of a fourth embodiment in accordance with the invention below in conjunction with Fig. 7.The Waveguide input apparatus 50 of two orthogonally polarized waves is that with the difference of the Waveguide input apparatus shown in Figure 1A-1C the part of the core conductor 9a of probe 7C is quadrant arc 18 shapes.Compare with the core conductor 9 with the vertical curve configuration shown in Figure 1A-1C, the reflection and the interference reduction of signal in the core conductor are to realize good impedance.This means broad frequency band signal the reception waveform better and can reduce return loss.Therefore, improved receiver identity.In addition, the advantage of present embodiment is that processing technology is easier to than the probe with vertical curve part.It is suitable for producing in batches.
Below in conjunction with Fig. 8 an example of the Waveguide input apparatus of according to a fifth embodiment of the invention two orthogonally polarized waves is described.The Waveguide input apparatus 60 of two orthogonally polarized waves is that with the difference of the Waveguide input apparatus of two orthogonally polarized waves shown in Figure 1A-1C the part of the core conductor 9b of probe 7d has crooked at 45.Identical with the situation of Fig. 7, particularly reflection and the interference at the signal of sweep is reduced in core conductor, to realize good impedance.Therefore, the signal of the frequency band of broad can receive with good shape.Therefore, receiver identity is improved.Present embodiment has the simpler advantage of processing technology than the probe with vertical curve part.The Waveguide input apparatus of present embodiment also is more suitable in batch process.
According to above-mentioned second to the 5th embodiment, the shape of material, structure, shape and core conductor by suitable selection probe can make the Waveguide input apparatus of two orthogonally polarized waves realize better receiver identity.
The Waveguide input apparatus of two orthogonally polarized waves according to a sixth embodiment of the invention will be described below in conjunction with Fig. 9 A-9C.Fig. 9 A is the profile along the cross section IX-IX of Fig. 9 C.The identical parts of Waveguide input apparatus of corresponding two orthogonally polarized waves of described first embodiment of Figure 1A-1C are denoted by the same reference numerals, and no longer describe in detail.
The Waveguide input apparatus 70 of sixth embodiment of the invention is with the difference of the Waveguide input apparatus of Figure 1A-1C, probe is parallel to polarization (vertically polarized wave) plane 2 and is provided with, and with another probe 20 angles at 45, thereby the shape of the front end 21 of the core conductor of adjusting probe 20 and the impedance matching in the waveguide 70a.Probe 20 is with the hole among 45 ° of tilted directions insertion waveguide 70a.The length of selecting front end 21 is to insert in the hole.
According to the 6th embodiment, two probes 5 and 20 that are used to receive two orthogonally polarized waves are connected to same circuit board 4a.Probe 5 is to connect with the direction of the outer wall that is orthogonal to waveguide 70a.
Compare with the situation that two probes are connected to independent circuit board, simplified and comprise and arrange the circuit design make the comprehensive circuitous pattern of two high-frequency signal polarized waves.Owing to only need a circuit board, then reduced material cost.Therefore a kind of Waveguide input apparatus with two orthogonally polarized waves of good cross-polarization performance and input return loss can be provided.
Compare with the outer wall that two probe angles at 45 each other are connected waveguide, the purpose of the processing technology that the purpose of the structural design that probe 5 connects is connected with probe 5 and use can be corresponding with the simple structure in the hole of mould formation, improved the connection workability of probe 5, therefore, can reduce assembly processing technology cost.The Waveguide input apparatus of good two orthogonally polarized waves can be provided in batch process.
To be described the Waveguide input apparatus of according to a seventh embodiment of the invention two orthogonally polarized waves below in conjunction with Figure 10 A-10C.Figure 10 A is the profile along the cross section X-X of Figure 10 C.The Waveguide input apparatus 80 of two orthogonally polarized waves is with the difference of the Waveguide input apparatus of two orthogonally polarized waves of described first embodiment of Figure 1A-1C, probe 23 is to be provided with the direction of the polarization plane 3 that is parallel to horizontal polarized wave, and probe 5 and 23 all is connected to has circuit board section 22a and the circuit board section 22b that is connected by flexible board 24.After the linking probe 5 and 23 circuit board 22 is connected to probe 5 and 23 and implements assembling.The present invention is not limited to the illustrative example that circuit board 22 usefulness flexible boards 24 connect.Circuit board 22 can be with the integrally formed circuit board of similar layout.Elbow corresponding to the waveguide 80a of part 24 preferably is circular arc.
According to the 7th embodiment, two probes that receive two orthogonally polarized waves are connected to same circuit board 22.Two probes 5 and 23 are connected with the direction that is orthogonal to waveguide outer wall separately.
Therefore, compare, simplified the circuit design that comprises the circuitous pattern of arranging that the polarized wave make two high-frequency signals is comprehensive with the situation that two probes are connected to independent circuit board.Owing to only need a circuit board, so can reduce material cost.Therefore a kind of Waveguide input apparatus with two orthogonally polarized waves of good cross polarization characteristics and input return loss can be provided.
Compare each other in the outer wall that 45 is connected waveguide with two probes, the purpose of the processing technology that the purpose of the structural design that probe connects is connected with probe and use can be corresponding with the simple structure in the hole of mould formation.Therefore, improve the workability that probe connects, can reduce the packaging technology cost.The Waveguide input apparatus of good two orthogonally polarized waves can be provided in batch process.
Below in conjunction with Figure 11 A-11B the Waveguide input apparatus according to two orthogonally polarized waves of the eighth embodiment of the present invention is described.Figure 11 B is the profile along the XI-XI hatching line of Figure 11 A.Represent with the used identical label of Waveguide input apparatus components identical shown in Figure 1A-1C according to two orthogonally polarized waves of the first embodiment of the present invention.To be not described in detail at this.
The Waveguide input apparatus 110 of two orthogonally polarized waves of eighth embodiment of the invention is with Waveguide input apparatus 1 difference according to two polarized waves of first embodiment shown in Figure 1A-1C, the front end 10e of linking probe 7e makes it depart from a predetermined angle with the mandrel of probe 7e in the plane of the central shaft that comprises waveguide and front end 10e, and is parallel to the polarization plane of horizontal polarized wave.
By making front end 10e skew certain angle, the distance that changes between distance, the particularly front end of probe 5, short bar 6 and the short circuit wall 8 between front end 10e and each element is improved the characteristic that depends on angle.The angle that reaches good characteristic according to the differences such as wavelength of the size of each parts and variation thereof, relevant polarized wave is different.Can be regarded as, can not obtain good characteristic with sizable angle.With respect to 0 ° of connection angle of first embodiment, angle [alpha] is preferably in approximately ± 20 ° in, better in ± 10 °.Probe 7e is connected in this angular range that obtains good characteristic, just can eliminate during manufacture the error that the change because of parts causes.Therefore, can obtain to have the Waveguide input apparatus of two orthogonally polarized waves of good characteristic.
Below in conjunction with Figure 12 A-12B the Waveguide input apparatus according to two orthogonally polarized waves of the ninth embodiment of the present invention is described.Figure 12 B is the profile along the XII-XII face of Figure 12 A.The parts identical with the Waveguide input apparatus of two orthogonally polarized waves of described first embodiment of Figure 1A-1C are represented with identical label.Here just be not described in detail.
Be according to the Waveguide input apparatus 120 of two orthogonally polarized waves of the ninth embodiment of the present invention and difference according to the Waveguide input apparatus 1 of two polarized waves of first embodiment shown in Figure 1A-1C, do not have the cavity 1b shown in Figure 1A-1C, and can be formed on probe 7 places for the leading edge 10 vertical deep trouth 120b that insert with certain size and degree of depth.Another difference is that otch 120c is formed on the front end (deepest part) of deep trouth 120b, thereby the front end 10 of probe 7 stretches into waveguide 1a.Select the size of otch 120c that front end 10 can be passed through therefrom.
Because probe 7 vertically inserts deep trouth 120b deeply, probe 7 slides to the inside of waveguide 1a then, and the front end 10 of probe 7 stretches out by otch 120c and protrudes in waveguide 1a.Part beyond the front end 10 of otch 120c is blocked with the periphery of probe 7.The advantage that this structure has is, the cavity that constitutes at the inwall of waveguide 1a reduces size, and the major part of inwall can form with metallic conductor is whole.Compare with the device of first embodiment, can keep better receiver identity and cross polarization characteristics.
Below in conjunction with Figure 13 the Waveguide input apparatus according to two orthogonally polarized waves of the tenth embodiment of the present invention is described.Figure 13 is the preceding profile of being got corresponding to along the XII-XII cross section of Figure 12 A.The identical parts of Waveguide input apparatus of two orthogonally polarized waves of the 9th embodiment that describes with Figure 12 A-12B are represented with identical label.Therefore, be not described in detail here.
The Waveguide input apparatus 130 of two orthogonally polarized waves of the tenth embodiment is with difference according to the Waveguide input apparatus 120 of two orthogonally polarized waves of the 9th embodiment shown in Figure 12 A-12C, metallic conductor 131 by compression be inserted in slide and the fixing Figure 12 of insertion A-12C shown in deep trouth 120b in after the cavity that forms.By cavity is inserted in metallic conductor 131 compressions, because the raising of transfer impedance has reduced loss.So, can keep better receiver identity of device and cross-pole voltinism than the 9th embodiment.
Below in conjunction with Figure 14 A-14B the Waveguide input apparatus according to two orthogonally polarized waves of the 11st embodiment of the present invention is described.Figure 14 B is the preceding profile of being got along the XIV-XIV face of Figure 14 A.In this accompanying drawing, the parts identical with the input unit of two orthogonally polarized waves of the 9th embodiment shown in the 12B with Figure 12 A are represented with identical label.Here will be not described in detail.
Be according to the Waveguide input apparatus 140 of two orthogonally polarized waves of the 11 embodiment and difference according to the Waveguide input apparatus 120 of two orthogonally polarized waves of the ninth embodiment of the present invention shown in Figure 12 A-12B, the connecting hole 141 of the probe 7 that forms on circuit board 142 be an ellipse, it and coaxial along the main shaft of the glide direction of probe 7.This ellipse configuration allows to regulate the L length that extend into front end 10 parts in the waveguide before methods such as probe 7 usefulness welding are fixed to circuit board 142.Adopt this structure, the interior and impedance between probe of scalable waveguide keeps better receiver identity of Waveguide input apparatus and cross polarization characteristics than two orthogonally polarized waves of the 9th embodiment.The shape of oval connecting hole 141 allows to regulate later in the Waveguide input apparatus manufacturing of two orthogonally polarized waves the position of probe 7.
Below in conjunction with Figure 15 A and 15B Waveguide input apparatus according to two orthogonally polarized waves of the 12nd embodiment of the present invention is described.Figure 15 B is the preceding profile along the hatching line of Figure 15 A.In the figure, represent with identical label with the identical parts of Waveguide input apparatus of two orthogonally polarized waves of described the 9th embodiment of Figure 12 A-12B.Here will be not described in detail.
The Waveguide input apparatus 150 of two orthogonally polarized waves of the 12 embodiment is with difference according to the Waveguide input apparatus 120 of two orthogonally polarized waves of the 9th embodiment shown in Figure 12 A-12B, the inwall of the deep trouth identical with the deep trouth 120b shown in Figure 12 A and the 12B covers with medium 151, with the thin deep trouth 152 that formation has the certain size and the degree of depth, wherein the sweep of mandrel 9 can vertical direction (along the depth direction of deep trouth) insert.Thin deep trouth 152 has near the opening of the waveguide inside bottom.
According to above-mentioned structure, front end 10 can be made after it inserts thin deep trouth 152 and stretch into waveguide by slip mandrel 9.The inwall of deep trouth part covers with medium 151.Transfer impedance be can improve with core conductor and medium 151, better receiving feature of Waveguide input apparatus and cross polarization characteristics kept than two orthogonally polarized waves of the 9th embodiment.
In the second to the 12 embodiment of the present invention, the frequency converter that is used for satellite broadcast receiver of the Waveguide input apparatus that uses two orthogonally polarized waves is never described.Yet, as at the frequency converter that is used for satellite broadcast receiver described in first embodiment,, needn't do unsuitable distortion by using at the Waveguide input apparatus of two positive polarization ripples described in the embodiment separately, also can draw similar frequency converter.They have similar advantage.
At length invention has been described above and diagram, but should be very clear, and this only is diagram and example, rather than in order to limit the present invention.The spirit and scope of the present invention are only limited by appended claim.
Claims (8)
1. the Waveguide input apparatus of two orthogonally polarized waves (1,30,40,50,60,70,110,120,130,140,150) comprising:
Waveguide (1a, 30a, a 40a, 50a, 60a, 70a), wherein introduce respectively and have mutually orthogonal first polarization plane (2) and first polarized wave and second polarized wave of second polarization plane (3), the other end that this waveguide has an open end and seals with short circuit wall (8), described waveguide (1a, 30a, 40a, 50a, 60a, 70a) have two cavitys that extend through its inside by its outer wall
First probe (5), it from described waveguide (1a, 30a, 40a, 50a, 60a, inwall 70a) protrude to be provided with through first cavity so that front end is parallel to described first polarization plane (2),
Second probe (7,7a, 7b, 7c, 7d, 7e, 20), it from described waveguide (1a, 30a, 40a, 50a, 60a, inwall 70a) protrude through the second described cavity and are provided with so that front end be parallel to described second polarization plane (3) and
A circuit board (4,4a, 142), it is arranged on the described outer wall parallel with described second polarization plane (3), and is connected to described first probe (5) and described second probe (7,7a, 7b, 7c, 7d, 7e, 20),
Wherein, described second probe (7,7a, 7b, 7c, 7d, 7e, 20) comprise a core conductor (9,9a, 9b, 9e), described core conductor (9,9a, 9b 9e) comprising:
First, it come from described circuit board (4,4a, 142) and be convexly set in waveguide (1a, 30a, 40a, 50a, 60a, described inwall side 70a) and
A front end (10,21), it, so that be parallel to described second polarization plane (3) and meets at right angles with described first polarization plane (2) basically from the front end bending of described first.
2. according to the Waveguide input apparatus (1,30,40,50,60) of two orthogonally polarized waves of claim 1, wherein, described second probe (7,7a, 7b, 7c, 7d, described first 7e) is parallel to described first polarization plane (2) and forms, and
Described second probe (7,7a, 7b, 7c, described front end (10) 7d) basically with described first meet at right angles crooked and basically along and the rectangular direction of described first polarization plane (2).
3. according to the Waveguide input apparatus (1,30,40,50 of two orthogonally polarized waves of claim 1,60,70,110,120,130,140,150), wherein said second probe (7,7a, 7b, 7c, 7d, 7e, 20) also comprise one cover described core conductor (9,9a, 9b, the medium of described first 9e) (11,14).
4. according to the Waveguide input apparatus (30,70) of two orthogonally polarized waves of claim 3, wherein, (10,10e) end of the medium of side (11) forms described waveguide (30a, 70a) part of inwall to the front end in described second probe (7a, 20).
5. according to the Waveguide input apparatus (30) of two orthogonally polarized waves of claim 3, also comprise a metallic film (12,13) that covers the surface of described medium (11).
6. according to the Waveguide input apparatus (40) of two orthogonally polarized waves of claim 3, wherein, described second probe (7b) also comprise one be connected to described medium (14), and when described second cavity of described core conductor (9) and described medium (14) insertion filling be retained in the conductor (15) of the part on second cavity.
7. according to the Waveguide input apparatus (40) of two orthogonally polarized waves of claim 6, wherein said waveguide (40a) comprises a protuberance at the inwall of described second cavity, and it is formed on towards inside by described conductor filled part place,
Described conductor (15) is included in the step part of described second cavity inner wall near described protuberance.
8. according to the Waveguide input apparatus (10) of two orthogonally polarized waves of claim 1, wherein said second probe (7e) is connected to described circuit board (4) so that the front end (10e) of described second probe (7e) in the direction of the central shaft of the waveguide (1a) that is orthogonal to the plane that is parallel to described second polarization plane (3) relatively in predetermined angular range (± α) bias internal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP004811/97 | 1997-01-14 | ||
| JP481197 | 1997-01-14 | ||
| JP231127/97 | 1997-08-27 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510074772 Division CN1700509A (en) | 1997-01-14 | 1998-01-14 | Waveguide input apparatus of two orthogonally polarized waves including two probes attached to a common board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1783578A true CN1783578A (en) | 2006-06-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510074772 Pending CN1700509A (en) | 1997-01-14 | 1998-01-14 | Waveguide input apparatus of two orthogonally polarized waves including two probes attached to a common board |
| CN 200510129430 Pending CN1783578A (en) | 1997-01-14 | 1998-01-14 | Waveguide input apparatus of two orthogonally polarized waves |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510074772 Pending CN1700509A (en) | 1997-01-14 | 1998-01-14 | Waveguide input apparatus of two orthogonally polarized waves including two probes attached to a common board |
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| CN (2) | CN1700509A (en) |
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|---|---|---|---|---|
| EP3657597A1 (en) * | 2018-11-22 | 2020-05-27 | Airbus Oneweb Satellites SAS | Active waveguide transition and rf signal communication system |
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1998
- 1998-01-14 CN CN 200510074772 patent/CN1700509A/en active Pending
- 1998-01-14 CN CN 200510129430 patent/CN1783578A/en active Pending
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| CN1700509A (en) | 2005-11-23 |
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Open date: 20060607 |