CN208489360U - Ultra wideband dual polarization microstrip antenna - Google Patents
Ultra wideband dual polarization microstrip antenna Download PDFInfo
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- CN208489360U CN208489360U CN201821096243.XU CN201821096243U CN208489360U CN 208489360 U CN208489360 U CN 208489360U CN 201821096243 U CN201821096243 U CN 201821096243U CN 208489360 U CN208489360 U CN 208489360U
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Abstract
The utility model discloses ultra wideband dual polarization microstrip antennas, including bottom plate, feed line, circuit board and outer cover, the circuit board side of being set on the bottom plate, outer cover covers at outside bottom plate, feed line one end passes through bottom plate and is connected with circuit board, circuit board is equipped with high frequency radiating element and low frequency radiating element, high frequency radiating element and low frequency radiating element are being respectively arranged at circuit board just, anti- two sides, feed line one end successively with low frequency radiating element, high frequency radiating element connection, high frequency radiating element and low frequency radiating element are two, two high frequency radiating elements are with the center symmetric setting of circuit board and are respectively arranged on the two diagonal of circuit board, two low frequency radiating element settings close to each other.Replacing the biggish loudspeaker of volume using the circuit board of ultra-thin printing, biggish receiver occupies little space so that inner space greatly reduces in equal volume, and above-mentioned antenna is dual polarized antenna, and compact-sized, small volume.
Description
Technical field
The utility model relates to signal of communication antenna, in particular to a kind of ultra wideband dual polarization microstrip antenna.
Background technique
With the fast development of the communication technology, further requirement improves the capacity of communication system, general using polarization at present
Diversity technique improves the working efficiency of antenna.And antenna emits as wireless signal, received key equipment, in function, body
Huge variation has occurred in product, weight.Low section, broadband, compact-sized dual polarization how are integrated on a communications device
Antenna is increasingly becoming each device manufacturer's focus of attention.
Microstrip antenna is small in size with its, light-weight, low section, it is at low cost, with active device, circuit integration be easily unified
The advantages such as component are widely used in mobile communication and personal wireless device.But narrow frequency band is its major defect, mesh
Preceding typical microstrip antenna relative bandwidth can extend its bandwidth by technological means such as loaded planar loudspeaker, cones less than 10%,
But the volume of this kind of antenna is larger, and mostly single-polarized antenna.Therefore, high-isolation is designed under ultra-wideband work, had both
Small in size, compact dual polarized antenna becomes the key points and difficulties of antenna research and development.
Utility model content
The purpose of the utility model is to provide it is a kind of it is small in size, light weight and cost is low, the ultra wideband dual polarization of high isolation is micro-
Band antenna, is at least able to solve one of above problem.
To achieve the above object, one aspect according to the present utility model provides a kind of ultra wideband dual polarization micro-strip day
Line, including bottom plate, feed line, circuit board and outer cover, the circuit board side of being set on the bottom plate, outer cover cover at outside bottom plate, feed line one
End is connected across bottom plate with circuit board, and circuit board is equipped with high frequency radiating element and low frequency radiating element, high frequency radiating element
Be respectively arranged at the obverse and reverse sides of circuit board with low frequency radiating element, feed line one end successively with low frequency radiating element, high frequency spoke
Unit connection is penetrated, high frequency radiating element and low frequency radiating element are two, and two high frequency radiating elements are with the center of circuit board
Two diagonal, the two low frequency radiating element settings close to each other for being symmetrical arranged and being respectively arranged on circuit board.
The utility model replaces biggish group in equal volume of the biggish loudspeaker of volume using the circuit board of ultra-thin printing as a result,
Part occupies little space so that inner space greatly reduces；By the way that high frequency radiating element and low frequency radiating element are disposed as two
It is a, and two high frequency radiating elements are respectively arranged on the two diagonal of circuit board, physical distance is farthest, is conducive to improve two polarization
The isolation of high frequency unit, two low frequency radiating element settings close to each other, the mutual coupling by two low frequency radiating elements are equivalent
Effect, improves the electrical length of low frequency cell, and then improves low frequency standing wave, while reducing physical size so that overall volume it is smaller,
More compact structure.Above-mentioned antenna is dual polarized antenna, and compact-sized, small volume.
In some embodiments, the first gap and the second gap are offered on high frequency radiating element, the first gap and the
The length difference in two gaps, the first gap and the second gap are set to the edge of high frequency radiating element.High frequency radiating element as a result,
It is equipped with the different gap of multiple length, so that antenna resonance in corresponding frequency range, and then extend bandwidth of operation.
In some embodiments, third gap is also provided on high frequency radiating element, third gap is set to high frequency spoke
Penetrate the inside of unit.Since high frequency radiating element is equipped with the first gap and the second gap of different length, when work, can cause
Antenna surface electric current is chaotic, easily causes the reduction of the radiation efficiency of antenna so that antenna in bandwidth of operation gain consistency compared with
Difference can be with the surface current on balance high frequency radiating element, so that each frequency by the way that third gap is arranged on high frequency radiating element
The gain of section is kept in balance.
In some embodiments, the 4th gap is offered on low frequency radiating element, the 4th gap is set to low frequency radiation
The edge of unit.The 4th gap can cause a trap as a result, so that the frequency range for not needing work between low frequency and high frequency occurs
Stopband effect, other inoperative frequency range brings influence when effectively filtering out Antenna Operation instead of filter, and filtration result is preferable.
In some embodiments, one end of high frequency radiating element, which is equipped with, adjusts minor matters, adjusts minor matters and connects feed line.By
This, adjusts the standing wave that minor matters are used to adjust high frequency radiating element.
In some embodiments, high frequency radiating element is rectangle or ellipse.Thus, it is possible to as needed to radiation
The shape of unit is configured, to meet the needs of different.
In some embodiments, bottom edge is equipped with card slot, and outer shroud rim is equipped with buckle, and buckle is interlocked with card slot.
The card slot on the buckle and bottom plate on outer cover is interlocked as a result, easy for assemble or unload, and does not influence signal.
In some embodiments, bottom plate is equipped with the limit tip, and circuit board is equipped with limit hole, limit hole and limit tip phase
Cooperation.Circuit board is removably mounted on bottom plate as a result, limit hole and limit the tip setting can effectively avoid circuit board misplace or
Person reversely installs.
The utility model has the following beneficial effects: the utility model replaces the biggish loudspeaker of volume using the circuit board of ultra-thin printing
Isometric biggish component occupies little space so that inner space greatly reduces；By by high frequency radiating element and low frequency spoke
It penetrates unit and is disposed as two, and two high frequency radiating elements are respectively arranged on the two diagonal of circuit board, physical distance is farthest, has
Conducive to the isolation for improving two polarization high frequency units, two low frequency radiating element settings close to each other, by two low frequency spokes
The mutual coupling equivalent action for penetrating unit improves the electrical length of low frequency cell, and then improves low frequency standing wave, while reducing physical size,
So that overall volume is smaller, more compact structure；The first gap, the second gap and third gap are offered on high frequency radiating element,
First gap and the second gap are set to the edge of high frequency radiating element, and high frequency radiating element is equipped with the different seam of multiple length
Gap, so that antenna resonance in corresponding frequency range, and then extend bandwidth of operation；Third gap is set to the interior of high frequency radiating element
Portion, since high frequency radiating element is equipped with the first gap and the second gap of different length, when work, can cause antenna surface electric
Stream is chaotic, the reduction of the radiation efficiency of antenna is easily caused, so that antenna gain consistency in bandwidth of operation is poor, by height
Third gap is set on radio-frequency radiation unit, it can be with the surface current on balance high frequency radiating element, so that the gain of each frequency range is protected
Hold equilibrium；The 4th gap is offered on low frequency radiating element, the 4th gap can cause a trap, so that between low frequency and high frequency
There is stopband effect in the frequency range for not needing work, other inoperative frequency range brings when effectively filtering out Antenna Operation instead of filter
It influences, filtration result is preferable.Therefore, the ultra wideband dual polarization microstrip antenna of the utility model have it is small in size, compact-sized, every
From the advantages that degree is high, consistency is good, gain is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ultra wideband dual polarization microstrip antenna of one embodiment of the utility model；
Fig. 2 is the schematic top plan view of ultra wideband dual polarization microstrip antenna shown in FIG. 1；
Fig. 3 is that the structure of the positive high frequency radiating element of circuit board of ultra wideband dual polarization microstrip antenna shown in Fig. 2 is shown
It is intended to；
Fig. 4 is that the structure of the low frequency radiating element of the circuit board reverse side of ultra wideband dual polarization microstrip antenna shown in Fig. 2 is shown
It is intended to；
Fig. 5 is antenna pattern of the ultra wideband dual polarization microstrip antenna shown in FIG. 1 in 800MHz；
Fig. 6 is antenna pattern of the ultra wideband dual polarization microstrip antenna shown in FIG. 1 in 4000MHz；
Fig. 7 is the structural schematic diagram of the bottom plate of ultra wideband dual polarization microstrip antenna shown in FIG. 1；
Fig. 8 is the structural schematic diagram of the outer cover of ultra wideband dual polarization microstrip antenna shown in FIG. 1；
Fig. 9 is the structural schematic diagram of the bottom plate of the ultra wideband dual polarization microstrip antenna of embodiment 2；
Figure 10 is the structural schematic diagram of the outer cover of the ultra wideband dual polarization microstrip antenna of embodiment 2.
Appended drawing reference in Fig. 1~10: 1- bottom plate；2- circuit board；3- outer cover 3；4- feed line；11- card slot；12- reinforces
Muscle；13- limits the tip；14- connecting hole；21- high frequency radiating element；22- low frequency radiating element；23- limit hole；24- feeds core；
31- buckle；121- concentric circles reinforcing rib；122- diameter strip reinforcing rib；The first gap 211-；The second gap 212-；213-
Third gap；214- adjusts minor matters；The 4th gap 221-.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Embodiment 1
As shown in Fig. 1~7, which includes bottom plate 1, feed line 4, circuit board 2 and outer cover 3.
Outer cover 3 covers at outside bottom plate 1, and circuit board 2 is set between bottom plate 1 and outer cover 3.One end of feed line 4 passes through bottom plate 1 and circuit board
2 are connected, and the other end is connector, are used for external power supply and data.The circuit board 2 of present embodiment is printed circuit board 2, circuit
Plate 2 is equipped with high frequency radiating element 21 and low frequency radiating element 22.High frequency radiating element 21 is etched in the front of circuit board 2, low
Radio-frequency radiation unit 22 is etched in the reverse side of circuit board 2, one end of feed line 4 pass through bottom plate 1 successively with low frequency radiating element 22, high
Radio-frequency radiation unit 21 connects.The ultra wideband dual polarization microstrip antenna of present embodiment is used as using the circuit board 2 of ultra-thin printing and is connect
Receive device so that inner space greatly reduces, so that the volume of antenna entirety becomes smaller, occupied space becomes smaller, facilitate installation with
It uses, and the circuit board 2 of 2 structure of printed circuit board is high-efficient, consistency is preferable.
As shown in Figures 2 and 3, the high frequency radiating element 21 of present embodiment can be the shapes such as rectangle or ellipse,
The high frequency radiating element 21 of present embodiment is irregular rectangle.High frequency radiating element 21 is two, two high frequency radiating elements
21 with the center symmetric setting of circuit board 2 and are respectively arranged on the two diagonal of circuit board 2, and one of high frequency radiating element 21 is in
45 ° of lower right corner for being placed in circuit board 2, another high frequency radiating element 21 are placed in the upper left corners of circuit board 2 in 45 °.As a result,
It is two diagonal to be respectively arranged on circuit board 2 for two high frequency radiating elements 21, and physical distance between the two is farthest, is conducive to raising two
The isolation of a polarization high frequency unit.The first gap 211, the second gap 212 and third seam are offered on high frequency radiating element 21
Gap 213.First gap 211 and the second gap 212 are set to the edge of high frequency radiating element 21.First gap 211 and the second seam
The shape of gap 212, which can according to need, to be configured, and the first gap 211 of present embodiment is T-shaped gap, the second gap
212 be " returning " font gap.First gap 211 is different from the length in the second gap 212, and the length in the first gap is 23~
25mm, the length in the second gap are 40~45mm.First gap 211 is of same size with the second gap 212, and gap width is
2~3mm.The depth in the first gap 211 is about the corresponding quarter-wave of band center frequency point, and the band center frequency point is corresponding
For 3.5GHz.The depth in the second gap 212 is about the corresponding quarter-wave of band center frequency point, the band center frequency point pair
It should be 1.8GHz.Multiple gaps such as the first gap 211, the second gap 212 are offered on high frequency radiating element 21 as a result, are made
Antenna resonance in corresponding frequency range is obtained, to increase the bandwidth of Antenna Operation.Third gap 213 and the first gap 211, second
Gap 212 is different, and third gap 213 is set to upper left side or lower right side and the setting in the first gap 211 and the second gap 212
In the inside of high frequency radiating element 21.The third gap 213 of present embodiment is I-shaped gap, the length in third gap 213
Degree is 20~23mm, and gap width is 2~3mm.Since high frequency radiating element 21 is equipped with 211 He of the first gap of different length
Second gap 212, when work, can cause antenna surface electric current chaotic, the reduction of the radiation efficiency of antenna be easily caused, so that antenna
Gain consistency is poor in bandwidth of operation, by the third gap 213 that an I-shaped is arranged on high frequency radiating element 21
Carry out the surface current of balance high frequency radiating element 21, so that the gain of each frequency range is kept in balance.
As shown in Figure 2 and Figure 4, the low frequency radiating element 22 of present embodiment is also two, two low frequency radiating elements 22
Setting close to each other.It is different that the low frequency radiating element 22 of present embodiment and high frequency radiating element 21 are placed on antenna ends, and two
A low frequency radiating element 22 is in mirror image and is rotated by 90 ° arrangement, and two low frequency radiating elements 22 are close to each other.By two low frequency spokes
The electrical length of low frequency radiating element 22 can be improved in the mutual coupling equivalent action for penetrating unit 22, improves low frequency standing wave, while reducing object
Manage size.
The 4th gap 221 is offered on each low frequency radiating element 22, the 4th gap 221 is set to low frequency radiating element
22 edge.The low frequency radiating element 22 of present embodiment is in rectangle, the left of the low frequency radiating element 22 of left side level
Angle is cut, the lower right corner of the low frequency radiating element 22 of right vertical cuts angle, and then can be to avoid the positive high frequency radiation of influence
The electromagenetic wave radiation of unit 21.4th gap 221 is set to the middle part that low frequency radiating element 22 sends out bevelled edge.4th gap 221
For strip crevice, length is 18~20mm, and width is 1~2mm.The depth in the 4th gap 221 is about band center frequency point pair
The band center frequency point of the quarter-wave answered, present embodiment corresponds to 1.3GHz.4th gap 221 can cause one to fall into
Wave effectively filters out antenna instead of filter so that antenna does not need the frequency range of work in stopband effect between low frequency and high frequency
Other inoperative frequency range brings influence when work, and filtration result is preferable.The feed position position of the polarisation unit of left side level
In corresponding 22 lower right side of low frequency radiating element, close to vertical edges；The feeding point of the polarisation unit of right vertical is close to the low frequency spoke
22 trimming of unit survey is penetrated, two feeding points to corresponding high frequency radiation a period of time phase difference are about low frequency center frequency point phase a quarter
Wavelength.
Minor matters 214 are adjusted in addition, being additionally provided on the circuit board 2 of present embodiment, minor matters 214 is adjusted and is set to high frequency radiation
The lower left side of unit 21 adjusts 214 one end of minor matters and is connected with high frequency radiating element 21, and the other end is connected to feed line 4.This reality
The adjusting minor matters 214 for applying mode are two, adjust the standing wave that minor matters 214 are used to adjust high frequency radiating element 21.
As shown in Figure 5 and Figure 6, omnidirectional radiation is presented in the antenna of present embodiment in working frequency range, as shown in figure 5,
When angle is 0 ° and -180 °, radiation reaches most strong, as shown in fig. 6, radiation reaches most strong when angle is 0 ° and -180 °, day
Line in two frequency ranges of high frequency (4000MHz) and low frequency (800MHz), gain pattern be it is approximate circle, show antenna
With good and stable omnidirectional radiation characteristic, it is suitable for technical field of ultra-wideband radio communication.
As shown in Figure 7 and Figure 8, a plurality of reinforcing rib 12, a plurality of reinforcement are equipped on the bottom plate 1 Yu outer cover 3 of present embodiment
Muscle 12 is arranged in a crisscross manner, the intensity of bottom plate 1 and outer cover 3 is substantially increased as a result, so that bottom plate 1 and outer cover 3 be not easily broken
It splits, substantially increases service life.The edge of bottom plate 1 is equipped with multiple card slots 11, and the edge of outer cover 3 is equipped with multiple buckles 31, card
Button 31 is interlocked with card slot 11, and the diameter that the diameter of outer cover 3 is greater than bottom plate 1 is compared so that outer cover 3 can be fastened with bottom plate 1
Traditional method for making to be screwed, the manner of present embodiment is more simple, and easy for assemble or unload.This implementation
The bottom plate 1 and outer cover 3 of the ultra wideband dual polarization microstrip antenna of mode are the ultra-thin plate structure of rectangle, the consistency of plate structure
Good, overall structure is more stable after fastening, and occupies little space.It is equipped with a plurality of reinforcing rib 12 on bottom plate 1 and outer cover 3, it is more
Reinforcing rib 12 is arranged in a crisscross manner, and circuit board 2 is set on reinforcing rib 12.The setting of reinforcing rib 12 substantially increases as a result,
The intensity of bottom plate 1 and outer cover 3 so that bottom plate 1 and outer cover 3 are not easy to break, and then improves service life.
Circuit board 2 is removably mounted on bottom plate 1, and bottom plate 1 is equipped with the limit tip 13, and limit is slightly fixed on bottom plate 1.
Limit hole 23 is offered on circuit board 2, limit hole 23 is matched with the limit tip 13.The limit tip 13 and limit hole of the utility model
23 be four, and four limit tips 13 and four 23 random distributions of limit hole, four limit tips 13 and four limit holes 23
The figure connected be irregular quadrilateral.Circuit board 2 can be fixedly installed on bottom plate 1, four limit holes 23 and four
The setting of a limit tip 13 is it is possible to prevente effectively from the dislocation of circuit board 2 or reversed installation, substantially increase installation effectiveness.
1 center of bottom plate is equipped with connecting hole 14, and connecting hole 14 is two.Circuit board 2 is equipped with feed core 24, and feed core 24 is
Two.The connecting hole 14 that one end of feed line 4 passes through on bottom plate 1 is soldered at the feed core 24 of circuit board 2.Connecting hole 14 is set
Set the connection for facilitating feed line 4 Yu circuit board 2.
Embodiment 2
Ultra-wideband microstrip antenna in the present embodiment is roughly the same with the structure in embodiment 1, and difference is, this implementation
Bottom plate in mode is different with the structure of outer cover.
As shown in Figure 9 and Figure 10, the bottom plate 1 Yu outer cover 3 of present embodiment are circle, are equipped on bottom plate 1 and outer cover 3 more
Reinforcing rib 12, a plurality of reinforcing rib 12 are staggered.On the bottom plate 1 and outer cover 3 of the broadband ceiling mount antenna of present embodiment
Reinforcing rib 12 includes concentric circles reinforcing rib 121 and diameter strip reinforcing rib 122, concentric circles reinforcing rib 121 and diameter item
The distribution of 122 cross-interleaved of shape reinforcing rib.The intensity of bottom plate 1 and outer cover 3 is substantially increased as a result, so that bottom plate 1 and outer cover
3 is not easy to break, substantially increases service life.
1 edge of bottom plate be equipped with multiple card slots 11,3 edge of outer cover be equipped with it is multiple buckle 31, the buckle 31 of present embodiment with
Card slot 11 is eight.Eight buckles 31 are interlocked with eight card slots 11, and the diameter of outer cover 3 is slightly larger than the diameter of bottom plate 1, from
And outer cover 3 can be fastened with bottom plate 1.The method for making to be screwed compared with prior art, the manner of the utility model
It is more simple and easy for assemble or unload.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical
Novel protection scope.
Claims (8)
1. ultra wideband dual polarization microstrip antenna, including bottom plate (1), feed line (4), circuit board (2) and outer cover (3), the circuit
Plate (2) is set to above bottom plate (1), and the outer cover (3) covers at bottom plate (1) outside, and described feed line (4) one end passes through bottom plate (1)
It is connected with circuit board (2), which is characterized in that the circuit board (2) is equipped with high frequency radiating element (21) and low frequency radiation list
First (22), the high frequency radiating element (21) and low frequency radiating element (22) are respectively arranged at the obverse and reverse sides of circuit board (2),
Described feed line (4) one end is successively connect with low frequency radiating element (22), high frequency radiating element (21), the high frequency radiating element
(21) and low frequency radiating element (22) is two, and two high frequency radiating elements (21) are with the central symmetry of circuit board (2)
Two diagonal, two low frequency radiating element (22) settings close to each other for being arranged and being respectively arranged on circuit board (2).
2. ultra wideband dual polarization microstrip antenna according to claim 1, which is characterized in that the high frequency radiating element (21)
On offer the first gap (211) and the second gap (212), the length of first gap (211) and the second gap (212) is not
Together, first gap (211) and the second gap (212) are set to the edge of high frequency radiating element (21).
3. ultra wideband dual polarization microstrip antenna according to claim 2, which is characterized in that the high frequency radiating element (21)
On be also provided with third gap (213), the third gap (213) is set to the inside of high frequency radiating element (21).
4. ultra wideband dual polarization microstrip antenna according to claim 1, which is characterized in that the low frequency radiating element (22)
On offer the 4th gap (221), the 4th gap (221) is set to the edge of low frequency radiating element (22).
5. ultra wideband dual polarization microstrip antenna according to claim 1, which is characterized in that the high frequency radiating element (21)
One end be equipped with and adjust minor matters (214), the adjustings minor matters (214) connection feed line (4).
6. ultra wideband dual polarization microstrip antenna according to claim 1, which is characterized in that the high frequency radiating element (21)
For rectangle or ellipse.
7. described in any item ultra wideband dual polarization microstrip antennas according to claim 1~6, which is characterized in that the bottom plate (1)
Edge is equipped with card slot (11), and the edge of the outer cover (3) is equipped with buckle (31), and buckle (31) is interlocked with card slot (11).
8. described in any item ultra wideband dual polarization microstrip antennas according to claim 1~6, which is characterized in that the bottom plate (1)
It is equipped with the limit tip (13), the circuit board (2) is equipped with limit hole (23), and the limit hole (23) and the limit tip (13) match
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821096243.XU CN208489360U (en) | 2018-07-11 | 2018-07-11 | Ultra wideband dual polarization microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821096243.XU CN208489360U (en) | 2018-07-11 | 2018-07-11 | Ultra wideband dual polarization microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489360U true CN208489360U (en) | 2019-02-12 |
Family
ID=65247264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821096243.XU Active CN208489360U (en) | 2018-07-11 | 2018-07-11 | Ultra wideband dual polarization microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208489360U (en) |
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2018
- 2018-07-11 CN CN201821096243.XU patent/CN208489360U/en active Active
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