CN108761218A - Dual polarization near-field measurement probe - Google Patents
Dual polarization near-field measurement probe Download PDFInfo
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- CN108761218A CN108761218A CN201810508524.XA CN201810508524A CN108761218A CN 108761218 A CN108761218 A CN 108761218A CN 201810508524 A CN201810508524 A CN 201810508524A CN 108761218 A CN108761218 A CN 108761218A
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- field measurement
- dual polarization
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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Abstract
The present invention relates to a kind of dual polarization near-field measurement probes, including first antenna unit, the second antenna element and metal isolating bar；First antenna unit, the second antenna element include：Medium substrate；Radiating element offers index type groove and lead-over groove on radiating element, and index type groove, lead-over groove are arranged at the middle part of radiating element, and index type groove is communicated with lead-over groove；Feed element, feed element are arranged in the second plate face；Metallic vias, metallic vias are electrically connected radiating element and feed element through medium substrate；First antenna unit is connected together with the second antenna element；Metal isolating bar is arranged in the second plate face of the medium substrate in first antenna unit or the second antenna element and metal isolating bar is between the feed element and the feed element of the second antenna element of first antenna unit, the present invention improves the excessive problem of tradition probe cross polarization level due to introducing metal isolating bar, while also improving the problem of tradition probe isolation difference.
Description
Technical field
The present invention relates to near-field measurement technique fields, more particularly to a kind of dual polarization near-field measurement probe.
Background technology
With the fast development of aerospace and electronic communication technology, to the performance requirement of various radars and communication system
It is higher and higher.Antenna is one of critical components of radio systems such as radar, communication, its performance is directly related to whole system
Performance.Antenna measurement technology, including the technologies such as far field and near field measurement are in modern antennas technology and military research field
Status become more and more important.
Near-field measurement technique, in developed country, it is not to be considered only as measuring the effective ways of antenna performance, and is to grind
Study carefully the indispensable means of new antenna, and the great potential of oriented other field infiltrations.Near-field scan is measured with the information obtained
Amount is big, environment and electrical random disturbances are small, computational accuracy is high, investment is small, can the series of advantages such as all weather operations.Therefore, it
To realize the high-precision automatic test and quickly detection and debugging of dual-use antenna, advanced means of testing is provided
And measurement criteria.In particular with the fast development of 5G communications, near field measurement is the best approach of 5G cellular networks AAS tests.
Wherein, it is to develop the emphasis direction of near-field measurement technique to improve the performance of near-field measurement probe and reduce its size
One of, still, during realization, inventor has found that at least there are the following problems in traditional technology：Traditional probe, which exists, to be handed over
The fork problem that polarization signal is excessively high, isolation is poor.
Invention content
Based on this, it is necessary to there is a problem of that cross polarization level is excessively high, isolation is poor for traditional probe, provide one
Kind dual polarization near-field measurement probe.
To achieve the goals above, an embodiment of the present invention provides a kind of dual polarization near-field measurement probes, including first day
Line unit, the second antenna element and metal isolating bar；
First antenna unit, the second antenna element include：
Medium substrate, medium substrate include the first plate face and second plate face opposite with the first plate face；
Radiating element, radiating element setting offer index type groove and lead-over groove in the first plate face, on radiating element, refer to
Number type groove, lead-over groove are arranged at the middle part of radiating element, and the opening of index type groove is set close to the first end of medium substrate
It sets, the opening of lead-over groove is arranged close to the second end of medium substrate, and first end is opposite with the second end, index type groove and mistake
Aqueduct communicates；
Feed element, feed element are arranged in the second plate face；
Metallic vias, metallic vias are electrically connected radiating element and feed element through medium substrate；
First antenna unit is connected together with the second antenna element；
Metal isolating bar is arranged in the second plate face of the medium substrate in first antenna unit or the second antenna element and gold
Belong to isolating bar to be between the feed element and the feed element of the second antenna element of first antenna unit.
First antenna unit is connected together with the second antenna element in one of the embodiments, including：
The medium substrate of first antenna unit along index type groove center line and offer the first card on the first end
Slot；
The medium substrate of second antenna element along index type groove center line and offer on the second end the second card
Slot；
The medium substrate that first antenna unit and the second antenna element pass through the side wall and the second antenna element of the first card slot
The first plate face and the second plate face effect and the second card slot side wall and first antenna unit medium substrate the first plate face and
The effect of second plate face is connected together.
Radiating element further includes third end and fourth end opposite with third end in one of the embodiments,
Portion；
The first slot array is offered on third end；The second slot array is offered on 4th end；First slot array, second
Slot row include at least one slot.
The first slot array includes 8 rectangular channels in one of the embodiments,；Second slot array includes 8 rectangular channels.
Radiating element further includes fifth end in one of the embodiments,；Third slot array is offered in fifth end
And the 4th slot array and be respectively distributed to the both sides of fifth end；Third slot array, the 4th slot row include at least one slot.
Third slot array includes 3 rectangular channels in one of the embodiments,；4th slot array includes 3 rectangular channels.
Further include loading resistor in one of the embodiments,；Loading resistor is connected electrically between the line of rabbet joint of lead-over groove.
Feed element includes arc feed section and fan-shaped feed section, arc current feed department in one of the embodiments,
The one end divided is concordant with the second end, the other end connect fan-shaped feed section.
Lead-over groove includes vee gutter and rectangular channel in one of the embodiments,；Vee gutter and proximity index type groove,
Rectangular channel communicates；Loading resistor is connected electrically between the line of rabbet joint of rectangular channel.
Medium substrate is Rectangular Enclosure with Participating Media substrate in one of the embodiments,.
A technical solution in above-mentioned technical proposal has the following advantages that and advantageous effect：
First antenna unit and the second antenna element cross are connected together, the knot of first antenna unit and the second antenna element
Structure and size all same, and include medium substrate, radiating element, feed element and metallic vias, the of medium substrate
It is provided with radiating element in one plate face, is provided with feed element in the second plate face, metallic vias is through medium substrate and is electrically connected
Radiating element and feed element are connect, metal isolating bar is arranged the of the medium substrate of first antenna unit or the second antenna element
In two plate faces and metal isolating bar is between the feed element and the feed element of the second antenna element of first antenna unit,
The present invention is based on the dual polarization near-field measurement probes that vivaldi type Antenna Designs go out symmetrical plane structure, and due to introducing gold
Belonging to isolating bar improves the excessive problem of tradition probe cross polarization level, while also improving asking for tradition probe isolation difference
Topic.
Description of the drawings
Fig. 1 is the first dimensional structure diagram of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 2 is the metal isolating bar partial enlargement structural representation of dual polarization near-field measurement probe of the present invention in one embodiment
Figure；
Fig. 3 is the first stereochemical structure signal of the antenna element of dual polarization near-field measurement probe of the present invention in one embodiment
Figure；
Fig. 4 is the dimensional structure diagram of the first card slot of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 5 is the dimensional structure diagram of the second card slot of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 6 is the first schematic diagram of the radiating element of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 7 is the second schematic diagram of the radiating element of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 8 is the third schematic diagram of the radiating element of dual polarization near-field measurement probe of the present invention in one embodiment；
Fig. 9 is the second dimensional structure diagram of dual polarization near-field measurement probe of the present invention in one embodiment；
Figure 10 is that the second stereochemical structure of the antenna element of dual polarization near-field measurement probe of the present invention in one embodiment is shown
It is intended to；
Figure 11 is the broadband simulation result diagram of dual polarization near-field measurement probe of the present invention in one embodiment；
Figure 12 is the isolation simulation result diagram of dual polarization near-field measurement probe of the present invention in one embodiment；
Figure 13 is the gain simulation result diagram of dual polarization near-field measurement probe of the present invention in one embodiment.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " opening up ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the Listed Items of pass.
That there are cross polarization levels in order to solve the problems, such as traditional probe is excessively high, isolation is poor, in one embodiment,
The present invention provides a kind of dual polarization near-field measurement probes, as illustrated in fig. 1 and 2, including first antenna unit 11, the second antenna list
Member 12 and metal isolating bar 13；
As shown in figure 3, first antenna unit 11, the second antenna element 12 include：
Medium substrate 21, medium substrate 21 include the first plate face 212 and second plate face opposite with the first plate face 212
214；
Radiating element 22, radiating element 22 are arranged in the first plate face 212, and index type groove is offered on radiating element 22
222 and lead-over groove 224, index type groove 222, lead-over groove 224 are arranged at the middle part of radiating element 22, and index type groove 222
Opening is arranged close to the first end 216 of medium substrate 21, and lead-over groove 224 is open close to the second end of medium substrate 21
218 settings, first end 216 is opposite with the second end 218, and index type groove 222 is communicated with lead-over groove 224；
Feed element 24, feed element 24 are arranged in the second plate face 214；
Metallic vias 26, metallic vias 26 are electrically connected radiating element 22 and feed element 24 through medium substrate 21；
As shown in Figure 1, first antenna unit 11 is connected together with the second antenna element 12；
The second plate of the medium substrate 21 in first antenna unit 11 or the second antenna element 12 is arranged in metal isolating bar 13
On face 214 and metal isolating bar 13 is in the feed list of the feed element 22 and the second antenna element 12 of first antenna unit 11
Between member 22.
Wherein, first antenna unit and the second antenna element are vivaldi type antennas, first antenna unit and second day
The structure snd size of line unit are identical, are all the antennas of symmetrical structure.
First antenna unit and the second antenna element include medium substrate, radiating element, feed element and metal mistake
Hole.
Specifically, in one embodiment, medium substrate uses relative dielectric constant εr=2.2, loss tangent tan δ=
0.02, thickness is the Rectangular Enclosure with Participating Media substrate of 0.5mm.It is set in the upper radiating element of the first plate face setting of medium substrate, the second plate face
Set feed element, metal isolating bar.In one embodiment, medium substrate is Rectangular Enclosure with Participating Media substrate.It is only arranged in the embodiment
Rectangular Enclosure with Participating Media substrate is lifted, and the shape of medium substrate can not be exhaustive, other can be applicable in the shape of the present invention.Wherein, if
Setting can be realized by techniques such as attachings.
Radiating element is used for radiated electromagnetic wave, offers index type groove thereon, and the opening of index type groove is towards radiating element
Exterior space, i.e., index type groove opening close to medium substrate the first plate face first end setting, be used to control electricity
Magnetic wave is from the tip of index type groove to open end radiated electromagnetic energy.Wherein, index type groove is designed by exponential function.
Lead-over groove is further opened on radiating element, lead-over groove is connected to by the tip of index type groove with index type groove.
Feed element is used to transmit energy to radiating element, and in one embodiment, feed element includes arc current feed department
Point and fan-shaped feed section, one end of arc feed section is concordant with third end, the other end connect sector feed section.Using
The feed element of the structure can effectively expand the standing wave bandwidth of dual polarization near-field measurement probe of the present invention, and reduce loss.
Metallic vias is the via of metallization, passes through metallic vias electricity through medium substrate, radiating element and feed element
Connection.Metallic vias refers to that one layer of thin copper is plated on the inner wall in hole with chemical reaction on hole wall between top layer and bottom, is made
The top layer and bottom for obtaining printed circuit board are connected with each other.
Metal isolating bar is arranged in the second plate face of the medium substrate in first antenna unit or the second antenna element and gold
Belong to isolating bar to be between the feed element and the feed element of the second antenna element of first antenna unit, specifically, for example, such as
Shown in Fig. 3, when metal isolating bar is arranged in the second plate face of the medium substrate of first antenna unit, metal isolating bar is being presented
The top of electric unit, metal isolating bar do not intersect with feed element, can basis so that the length to metal isolating bar is designed
Actual demand changes the size of metal isolating bar, and the first antenna unit and the second antenna element in the present invention be to pass through engaging
Mode connect, in engagement direction first antenna unit and first antenna unit do not complete to overlap, i.e., be wrong in engagement direction
It opens up and sets, to which the feed element of first antenna unit and the feed element of the second antenna element are be staggered not in engagement direction
Intersection, metal isolating bar installation position must meet the feedback of the feed element and the second antenna element between first antenna unit
Between electric unit.
In one embodiment, first antenna unit is connected together with the second antenna element, including：As shown in figure 4, first
The medium substrate 21 of antenna element 11 along index type groove 222 center line and offer on first end 216 first card slot
111；
As shown in figure 5, the medium substrate 21 of the second antenna element 12 along index type groove 222 center line and in second end
The second card slot 121 is offered in portion 218；
First antenna unit 11 and the second antenna element 12 pass through the side wall of the first card slot 111 and the second antenna element 12
The medium base of first plate face of medium substrate and the side wall and first antenna unit 11 of the effect of the second plate face and the second card slot 121
First plate face of plate and the effect of the second plate face are connected together.
Specifically, respectively open up a clamp bar slot in first antenna unit and the second antenna element, by the depth of each card slot come
Control first antenna unit and the second antenna element are staggered distance in engagement direction.After engaging by this way, first antenna list
Member is connected with the second antenna element at square crossing.Therefore, the electromagnetic wave and the second antenna element that first antenna unit is sent out are sent out
The electromagnetic wave gone out is mutually perpendicular to, and forms dual polarization probe.
In each embodiment of dual polarization near-field measurement probe of the present invention, first antenna unit and the engaging of the second antenna element cross
Connection, the structure snd size all same of first antenna unit and the second antenna element, and including medium substrate, radiating element,
Feed element and metallic vias are provided with radiating element in the first plate face of medium substrate, are provided with feedback in the second plate face
Electric unit, metallic vias is through medium substrate and is electrically connected radiating element and feed element, and metal isolating bar is arranged first
In second plate face of the medium substrate of antenna element or the second antenna element and metal isolating bar is in the feedback of first antenna unit
Between electric unit and the feed element of the second antenna element, the present invention is based on vivaldi type Antenna Designs to go out symmetrical plane structure
Dual polarization near-field measurement probe, and improve tradition probe due to introducing metal isolating bar cross polarization level be excessive asks
Topic, while also improving the problem of tradition probe isolation difference.
Based on above-described embodiment, as shown in fig. 6, radiating element 22 further includes third end and opposite with third end
4th end；
The first slot array 221 is offered on third end；The second slot array 223 is offered on 4th end；First slot battle array
Row 221, the second slot row 223 include at least one slot.
Specifically, being offered respectively with the symmetrical both sides of central shaft (third end and the 4th end) in radiating element
First slot array and the second slot array.Include at least one slot in first slot array, includes at least one slot in the second slot array.
Further, in one embodiment, the number comprising slot and the number phase for including slot in the second slot array in the first slot array
Deng, and the first slot array and the second slot array are arranged symmetrically in third end and the 4th end, i.e. the first slot array and the second slot
Corresponding groove all is the same size in the number or the two of array either slot.
In each embodiment of dual polarization near-field measurement probe of the present invention, the first slot array is opened up respectively in the both sides of radiating element
The cross polarization level that dual polarization near-field measurement probe of the present invention can be improved with the second slot array, to efficiently reduce this hair
The size of bright dual polarization near-field measurement probe is conducive to the size for reducing traditional antenna systems, it is small to meet now current electronic device
Type development trend.
Based on above-described embodiment, further, the first slot array 221 includes 8 rectangular channels；Second slot array 223 includes 8
A rectangular channel.
Specifically, through emulation experiment, in dual polarization near-field measurement probe other structures it is constant in the case of, when
One slot array includes 8 rectangular channels, is surveyed most beneficial for improvement dual polarization near field of the present invention when the second slot array includes 8 rectangular channels
Measure the cross polarization level of probe.Wherein, the center line of each rectangular channel of the first slot array is respectively perpendicular to first end correspondence
Side；The center line of each rectangular channel of second slot array is respectively perpendicular to the corresponding side of the second end.In one embodiment
In, include the identical rectangular channel of 8 sizes in the first slot array, the second slot array includes the identical rectangular channel of 8 sizes.Into one
Step, in one embodiment, the first slot array includes 8 different rectangular channels of size, and the second slot array includes 8
The different rectangular channel of size.
In each embodiment of dual polarization near-field measurement probe of the present invention, the first slot array includes 8 rectangular channels；Second slot array
The size for further reducing dual polarization near-field measurement probe of the present invention including 8 rectangular channels, further improves this hair
The cross polarization level of bright dual polarization near-field measurement probe.
Based on above-described embodiment, as shown in fig. 7, radiating element 22 further includes fifth end；Is offered in fifth end
Three slot arrays 225 and the 4th slot array 227 and the both sides for being respectively distributed to fifth end；Third slot array 225, the 4th slot row
227 include at least one slot.
Specifically, the third end in feed element offers third slot array and the 4th slot array, wherein third end
Portion is feed element perpendicular to the side of central shaft.Third slot array includes at least one slot, the 4th slot array including at least
One slot.Third slot array is with the 4th slot array about the substantially symmetrical about its central axis of radiating element, i.e. third slot array and the 4th slot battle array
The row either number of slot and corresponding groove all are the same size.
In each embodiment of dual polarization near-field measurement probe of the present invention, third slot array and the 4th slot are opened up on radiating element
Array, improves the back scattering performance of dual polarization near-field measurement probe of the present invention, and improves dual polarization near field of the present invention
The gain effect of measuring probe.
Based on above-described embodiment, third slot array 225 includes 3 rectangular channels；4th slot array 227 includes 3 rectangular channels.
Specifically, through emulation experiment, in dual polarization near-field measurement probe other structures it is constant in the case of, when
Three slot arrays include 3 rectangular channels, are surveyed most beneficial for improvement dual polarization near field of the present invention when the 4th slot array includes 3 rectangular channels
The back scattering performance of probe is measured, the gain effect of dual polarization near-field measurement probe of the present invention is improved.Wherein, third slot array and
The center line of each rectangular channel of 4th slot array is respectively perpendicular to the corresponding side in third end.In one embodiment, third
Include the identical rectangular channel of 3 sizes in slot array, the 4th slot array includes the identical rectangular channel of 3 sizes.Further, exist
In one embodiment, third slot array includes 3 different rectangular channels of size, the 4th slot array include 3 sizes not
Identical rectangular channel.
In each embodiment of dual polarization near-field measurement probe of the present invention, third slot array includes 3 rectangular channels；4th slot array
The back scattering performance of dual polarization near-field measurement probe of the present invention is further improved including 3 rectangular channels, and further
The gain effect for improving dual polarization near-field measurement probe of the present invention.
In one embodiment, as shown in figure 8, further including loading resistor 226；Loading resistor 226 is connected electrically in lead-over groove
Between 224 line of rabbet joint.
Further, as shown in figure 8, lead-over groove 224 includes vee gutter 2241 and rectangular channel 2242；Vee gutter 2241
It is communicated with proximity index type groove 222, rectangular channel 2242；Loading resistor 226 is connected electrically between the line of rabbet joint of rectangular channel 2242.
Specifically, lead-over groove is the slot of polygon, vee gutter and rectangular channel can be divided by spliting, and vee gutter passes through
One tip is connected to index type groove, and vee gutter is connected to rectangular channel.Loading resistor is connected to the conduction of besieged city rectangular channel
Between layer (radiating element sheet is as conductive layer).
In each embodiment of dual polarization near-field measurement probe of the present invention, by being loaded in the connection of the conductive layer of lead-over groove both sides
Resistance effectively improves the standing wave bandwidth of dual polarization near-field measurement probe of the present invention.
In one embodiment, dual polarization near-field measurement probe of the present invention, as shown in Figures 9 and 10, including first antenna list
Member, the second antenna element and metal isolating bar；
First antenna unit, the second antenna element include：
Medium substrate, medium substrate include the first plate face and second plate face opposite with the first plate face；Medium substrate
A length of 142.5mm (millimeter), width 142.5mm；
Radiating element, radiating element setting offer index type groove and lead-over groove in the first plate face, on radiating element, refer to
Number type groove, lead-over groove are arranged at the middle part of radiating element, and the opening of index type groove is set close to the first end of medium substrate
It sets, the opening of lead-over groove is arranged close to the second end of medium substrate, and first end is opposite with the second end, index type groove and mistake
Aqueduct communicates；
Radiating element further includes third end and fourth end opposite with third end；Is offered on third end
One slot array；The second slot array is offered on 4th end；First slot array includes 8 rectangular channels；Second slot array includes 8
Rectangular channel；
Radiating element further includes fifth end；Third slot array and the 4th slot array and difference are offered in fifth end
It is distributed in the both sides of fifth end；Third slot array includes 3 rectangular channels in one of the embodiments,；4th slot array packet
Include 3 rectangular channels；
Loading resistor, loading resistor are connected electrically between the line of rabbet joint of rectangular channel；
Feed element, feed element are arranged in the second plate face；Feed element includes arc feed section and fan-shaped feed
Part, one end of arc feed section is concordant with third end, the other end connect sector feed section；
Metallic vias, metallic vias are electrically connected radiating element and feed element through medium substrate；
Metal isolating bar is arranged in the second plate face of the medium substrate in first antenna unit or the second antenna element and gold
Belong to isolating bar to be between the feed element and the feed element of the second antenna element of first antenna unit；
The medium substrate of first antenna unit along index type groove center line and offer the first card on the first end
Slot；
The medium substrate of second antenna element along index type groove center line and offer on the second end the second card
Slot；
The medium substrate that first antenna unit and the second antenna element pass through the side wall and the second antenna element of the first card slot
The first plate face and the second plate face effect and the second card slot side wall and first antenna unit medium substrate the first plate face and
The effect of second plate face is connected together.
Specifically, in this embodiment, a length of 142.5mm, the width 142.5mm of medium substrate.Through performance simulation, such as
Shown in Figure 10, it is 619MHz (megahertz) to 6500MHz that standing wave, which is less than 2.5 bandwidth below,.As shown in figure 11, because introducing metal
The isolation simulation value of isolating bar is not minimum small with 30dB (decibel).As shown in figure 12, cross polarization level is minimum is not less than
25dB.As shown, the maximum gain at 0.7GHz (girz) is more than 1dB.The above simulation result explanation is bipolar by the present invention
Change the probe of near-field measurement probe structure design with wide, cross polarization level performance is good, and isolation is high, and gain effect is good.This
Scheme is more to propose a kind of design structure for improving traditional probe performance and reducing traditional probe size, and specific size can
Depending on according to actual needs.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of dual polarization near-field measurement probe, which is characterized in that including first antenna unit, the second antenna element and metal
Isolating bar；
The first antenna unit, second antenna element include：
Medium substrate, the medium substrate include the first plate face and second plate face opposite with first plate face；
Radiating element, the radiating element are arranged in first plate face, offered on the radiating element index type groove and
Lead-over groove, the index type groove, the lead-over groove are arranged at the middle part of the radiating element, and the opening of the index type groove
First end close to the medium substrate is arranged, and the opening of the lead-over groove is set close to the second end of the medium substrate
It sets, the first end is opposite with the second end, and the index type groove is communicated with the lead-over groove；
Feed element, the feed element are arranged in second plate face；
Metallic vias, the metallic vias are electrically connected the radiating element and feed list through the medium substrate
Member；
The first antenna unit is connected together with second antenna element；
The second plate of the medium substrate in the first antenna unit or second antenna element is arranged in the metal isolating bar
On face and the metal isolating bar is in the feed list of the feed element and second antenna element of the first antenna unit
Between member.
2. dual polarization near-field measurement probe according to claim 1, which is characterized in that the first antenna unit with it is described
Second antenna element is connected together, including：
The medium substrate of the first antenna unit along the index type groove center line and offered on the first end
First card slot；
The medium substrate of second antenna element along the index type groove center line and offered on the second end
Second card slot；
The side wall and the second antenna list of the first antenna unit and second antenna element by first card slot
First plate face of the medium substrate of member and the side wall of the effect of the second plate face and second card slot and the first antenna unit
First plate face of medium substrate and the effect of the second plate face are connected together.
3. dual polarization near-field measurement probe according to claim 2, which is characterized in that the radiating element further includes third
End and fourth end opposite with the third end；
The first slot array is offered on the third end；The second slot array is offered on 4th end；First slot
Array, second slot row include at least one slot.
4. dual polarization near-field measurement probe according to claim 3, which is characterized in that the first slot array includes 8
Rectangular channel；The second slot array includes 8 rectangular channels.
5. dual polarization near-field measurement probe according to any one of claims 1 to 4, which is characterized in that the radiation is single
Member further includes fifth end；
Third slot array and the 4th slot array are offered in the fifth end and are respectively distributed to the two of the second end
Side；The third slot array, the 4th slot row include at least one slot.
6. dual polarization near-field measurement probe according to claim 5, which is characterized in that the third slot array includes 3
Rectangular channel；The 4th slot array includes 3 rectangular channels.
7. dual polarization near-field measurement probe according to claim 6, which is characterized in that further include loading resistor；It is described to add
Resistance is carried to be connected electrically between the line of rabbet joint of the lead-over groove.
8. dual polarization near-field measurement probe according to claim 7, which is characterized in that the feed element includes arc feedback
Electric part and fan-shaped feed section, one end of the arc feed section with the second end concordantly, described in the other end connect
Fan-shaped feed section.
9. dual polarization near-field measurement probe according to claim 8, which is characterized in that the lead-over groove includes vee gutter
And rectangular channel；The vee gutter with connect the index type groove, the rectangular channel communicates；The loading resistor is connected electrically in institute
Between the line of rabbet joint for stating rectangular channel.
10. dual polarization near-field measurement probe according to claim 9, which is characterized in that the medium substrate is situated between for rectangle
Matter substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508524.XA CN108761218B (en) | 2018-05-24 | 2018-05-24 | Dual-polarized near-field measuring probe |
Applications Claiming Priority (1)
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| CN109616758A (en) * | 2018-12-03 | 2019-04-12 | 中电科仪器仪表有限公司 | A kind of miniature ultra wide band dual polarization probe antenna for Planar Near-Field Measurement |
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