CN208336484U - ultra-wideband microstrip antenna - Google Patents
ultra-wideband microstrip antenna Download PDFInfo
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- CN208336484U CN208336484U CN201821094839.6U CN201821094839U CN208336484U CN 208336484 U CN208336484 U CN 208336484U CN 201821094839 U CN201821094839 U CN 201821094839U CN 208336484 U CN208336484 U CN 208336484U
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Abstract
The utility model discloses a kind of ultra-wideband microstrip antennas, including bottom plate, feed line, circuit board and outer cover, outer cover covers at outside bottom plate, circuit board is set between bottom plate and outer cover, 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, the first gap and the second gap are offered on high frequency radiating element, first gap is different from the length in the second gap, first gap and the second gap are set to the edge of high frequency radiating element, the 5th gap is offered on low frequency radiating element, 5th gap is set to the edge of low frequency radiating element.The antenna pattern of above-mentioned antenna will not be distorted, and signal conformance is good, substantially increase communication quality.
Description
Technical field
The utility model relates to signal of communication antenna, in particular to a kind of ultra-wideband microstrip antenna.
Background technique
With the fast development of the communication technology, antenna is as wireless signal transmitting, received key equipment, in function, body
Huge variation has occurred in product, weight.The volume of communication equipment more becomes increasingly complex come also small, function, inevitable requirement institute band
Antenna is more and more thinner, and the frequency range of covering is more and more, and gain is higher, meets installation by adhering demand.Micro band superwide band antenna is existing
Have become research hotspot, small in size, light-weight, low section, it is at low cost, can it is conformal with carrier, easily with active device, circuit collection
As advantages such as unified components, it is widely used in mobile communication and personal wireless device.
Existing ultra-wideband microstrip antenna while realizing ultra wide band, directional diagram with the increase of frequency band occur it is abnormal
Become this phenomenon to be never well solved, such as Patent No. 201210116720.5 discloses one kind and there is band to hinder
The pocket super-broadband microstrip antenna of characteristic, working frequency range reach 3~10.9GHz, form stopband effect in 4.9~5.9GHz,
Its stopband effect is realized by introducing ellipse patch at the back side of dielectric-slab (20).But the directional diagram of 9GHz obviously produces in Fig. 3
Raw distortion, by the theoretic round 8-shaped that small one and large one is presented.
In addition, patent 201310134927.X proposes the thinking of dual-attenuation ultra-wideband microstrip antenna, using in radiating element 3
On open two bar grooves 4 and slot 5 and realize and pinch wave energy in 3.0~3.8 and 5.0~5.8 two frequency ranges, but its directional diagram is in 4GHz
It still distorts with 6GHz obvious.Since the distortion of directional diagram is so that the signal strength low-and high-frequency received in same place is inconsistent,
Even there is blind area, causes the decline of communication quality.
Utility model content
The purpose of the utility model is to provide it is a kind of it is small in size, bandwidth, compact-sized, consistency is good, good communication quality
Ultra-wideband microstrip antenna, be 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 microstrip antenna, including
Bottom plate, feed line, circuit board and outer cover, outer cover cover at outside bottom plate, and circuit board is set between bottom plate and outer cover, feed line one end
Be connected across bottom plate with circuit board, circuit board be equipped with high frequency radiating element and low frequency radiating element, high frequency radiating element and
Low frequency radiating element is respectively arranged at the obverse and reverse sides of circuit board, feed line one end successively with low frequency radiating element, high frequency radiation
Unit connects, and offers the first gap and the second gap on high frequency radiating element, and the first gap is different from the length in the second gap,
First gap and the second gap are set to the edge of high frequency radiating element, offer the 5th gap on low frequency radiating element, and the 5th
Gap is set to the edge of low frequency radiating element.
The utility model replaces the biggish reception in equal volume of the biggish loudspeaker of volume using the circuit board of ultra-thin printing as a result,
Device occupies little space so that inner space greatly reduces；High frequency radiating element and low frequency is respectively set in the tow sides of circuit board
Radiating element, and the first gap and the second gap are offered on high frequency radiating element, so that antenna resonance in corresponding frequency range,
To increase the bandwidth of Antenna Operation；The 5th gap is offered on low frequency radiating element, the 5th gap can cause a trap, make
Obtaining antenna and not needing the frequency range of work between low frequency and high frequency is in stopband effect, when effectively filtering out Antenna Operation instead of filter
Other inoperative frequency range brings influence, and filtration result is preferable；The antenna pattern of above-mentioned antenna will not be distorted, signal one
Cause property is good, substantially increases communication quality.
In some embodiments, third gap and the 4th gap are also provided on high frequency radiating element, third gap is
Round gap, the 4th gap are bar-shaped gap, and the 4th gap is distributed in the side in third gap in radiation.Due to high frequency spoke
The first gap and the second gap that unit is equipped with different length are penetrated, when work can cause antenna surface electric current chaotic, easily cause
The reduction of the radiation efficiency of antenna, so that antenna gain consistency in bandwidth of operation is poor, by high frequency radiating element
One circular third gap and radial 4th gap are set and carry out the surface current of balance high frequency radiating element, so that each frequency
The gain of section is kept in balance.
In some embodiments, ultra-wideband microstrip antenna further includes coupling ties, and coupling ties are set to bottom plate
Between low frequency radiating element, one end of coupling ties is matched with low frequency radiating element.Coupling ties are set to as a result,
The bottom of low frequency radiating element and close coupling effect is formed with low frequency radiating element, and then widens low frequency operation frequency band.
In some embodiments, circuit board, which is equipped with, adjusts minor matters, adjusts minor matters both ends and is separately connected high frequency radiation list
Member and feed line.The standing wave that minor matters are used to adjust high frequency radiating element is adjusted as a result,.
In some embodiments, high frequency radiating element is rectangle or ellipse.
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 wiring board is equipped with limit hole, limit hole and limit tip phase
Cooperation.Wiring board is removably mounted on bottom plate as a result, limit hole and limit the tip setting can effectively avoid wiring board misplace or
Person reversely installs.
The utility model has the following beneficial effects:
The biggish loudspeaker of volume biggish receiver in equal volume is replaced using the circuit board of ultra-thin printing, so that inner space
It greatly reduces, occupies little space；High frequency radiating element and low frequency radiating element, high frequency spoke is respectively set in the tow sides of circuit board
It penetrates on unit and offers the first gap, the second gap, third gap and the 4th gap, the setting in the first gap and the second gap makes
Antenna resonance in corresponding frequency range is obtained, to increase the bandwidth of Antenna Operation；Third gap is round gap, and the 4th gap is
Bar-shaped gap, the 4th gap are distributed in the side in third gap in radiation, since high frequency radiating element is equipped with different length
The first gap and the second gap of degree, when work, can cause antenna surface electric current chaotic, easily cause the drop of the radiation efficiency of antenna
It is low, so that antenna gain consistency in bandwidth of operation is poor, stitched by the way that a circular third is arranged on high frequency radiating element
The surface current of balance high frequency radiating element is carried out in gap and radial 4th gap, so that the gain of each frequency range is kept in balance；
The 5th gap is offered on low frequency radiating element, the 5th gap can cause a trap, so that antenna is between low frequency and high frequency
The frequency range for not needing work is in stopband effect, other inoperative frequency range bring shadows when effectively filtering out Antenna Operation instead of filter
It rings, filtration result is preferable；It further include coupling ties, coupling ties are set between bottom plate and low frequency radiating element, coupling
Connector is set to the bottom of low frequency radiating element and forms close coupling effect with low frequency radiating element, and then widens low frequency operation
Frequency band；The antenna pattern of above-mentioned antenna will not be distorted, and signal conformance is good, substantially increase communication quality.Therefore, originally
The ultra-wideband microstrip antenna of utility model has many advantages, such as that small in size, bandwidth, compact-sized, consistency is good, good communication quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ultra-wideband microstrip antenna of one embodiment of the utility model；
Fig. 2 is the schematic top plan view of ultra-wideband microstrip antenna shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the positive high frequency radiating element of circuit board of ultra-wideband microstrip antenna shown in Fig. 2；
Fig. 4 is the structural schematic diagram of the low frequency radiating element of the circuit board reverse side of ultra-wideband microstrip antenna shown in Fig. 2；
Fig. 5 is antenna pattern of the ultra-wideband microstrip antenna shown in FIG. 1 in 800MHz；
Fig. 6 is antenna pattern of the ultra-wideband microstrip antenna shown in FIG. 1 in 4000MHz；
Fig. 7 is the structural schematic diagram of the bottom plate of ultra-wideband microstrip antenna shown in FIG. 1；
Fig. 8 is the structural schematic diagram of the outer cover of ultra-wideband microstrip antenna shown in FIG. 1；
Fig. 9 is the structural schematic diagram of the bottom plate of the ultra-wideband microstrip antenna of embodiment 2；
Figure 10 is the structural schematic diagram of the outer cover of the ultra-wideband microstrip antenna of embodiment 2.
Appended drawing reference in Fig. 1~10: 1- bottom plate；2- circuit board；3- outer cover；4- feed line；5 coupling ties；11- card
Slot；12- reinforcing rib；13- limits the tip；14- connecting hole；15- installs the tip；21- high frequency radiating element；22- low frequency radiating element；
23- limit hole；24- feeds core；31- buckle；51- mounting hole；121- concentric circles reinforcing rib；122- diameter strip reinforcing rib；
The first gap 211-；The second gap 212-；213- third gap；The 4th gap 214-；215- adjusts minor matters；221- the 5th is stitched
Gap.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Embodiment 1
As shown in Fig. 1~8, which includes bottom plate 1, feed line 4, circuit board 2 and outer cover 3.Outer cover 3 covers
Outside bottom plate 1, 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 is connected with circuit board 2
It connects, the other end is connector, is used for external power supply and data.The circuit board 2 of present embodiment is printed circuit board 2, on circuit board 2
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 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 frequency radiation
Unit 21 connects.The ultra-wideband microstrip antenna of present embodiment is used as recipient using the circuit board 2 of ultra-thin printing, so that internal
Space greatly reduces, so that the volume of antenna entirety becomes smaller, occupied space becomes smaller, easy to install and use, and prints
The circuit board 2 of 2 structure of circuit board is high-efficient, and 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 placed in the upper right of circuit board 2 in 45 °
Angle offers the first gap 211, the second gap 212, third gap 213 and the 4th gap 214 on high frequency radiating element 21.The
One gap 211 and the second gap 212 are set to the edge of high frequency radiating element 21.The shape in the first gap 211 and the second gap 212
Shape, which can according to need, to be configured, and the first gap 211 of present embodiment is "T"-shaped gap, and the second gap 212 is back-shaped seam
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
For 40~45mm.First gap 211 is of same size with the second gap 212, and gap width is 2~3mm.First gap 211
Depth be about the corresponding quarter-wave of band center frequency point, which corresponds to 3.5GHz.Second gap
212 depth is about the corresponding quarter-wave of band center frequency point, which corresponds to 1.8GHz.As a result,
Multiple gaps such as the first gap 211, the second gap 212 are offered on high frequency radiating element 21, so that antenna is in corresponding frequency
Resonance in section, to increase the bandwidth of Antenna Operation.Third gap 213, the 4th gap 214 and the first gap 211, the second gap
212 differences, third gap 213 and the 4th gap 214 are set to upper 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 round gap, and the diameter in third gap 213 is 8
~10mm.4th gap 214 is bar-shaped gap, and the 4th gap 214 is distributed in the upper right side in third gap 213 in radiation.
The length in the 4th gap is 8~10mm, and width is 0.8~1.2mm.Since high frequency radiating element 21 is equipped with the of different length
One gap 211 and the second gap 212, when work, can cause antenna surface electric current chaotic, easily cause the drop of the radiation efficiency of antenna
It is low, so that antenna gain consistency in bandwidth of operation is poor, by the way that a circular third is arranged on high frequency radiating element 21
The surface current of balance high frequency radiating element 21 is carried out in gap 213 and radial 4th gap 214, so that the gain of each frequency range
It keeps in balance.
As shown in Figure 2 and Figure 4, the 5th gap 221, the 5th gap are offered on the low frequency radiating element 22 of present embodiment
221 are set to the edge of low frequency radiating element 22.The low frequency radiating element 22 of present embodiment is in rectangle, and top-right part is gone
Except to avoid the electromagenetic wave radiation for influencing front high frequency radiating element 21.5th gap 221 is set to the hair of low frequency radiating element 22
The middle part of bevelled edge.5th gap 221 is strip crevice, and length is 18~20mm, and width is 1~2mm.5th gap 221
Depth be about the corresponding quarter-wave of band center frequency point, which corresponds to 1.3GHz.5th gap 221
It can cause a trap, so that antenna does not need the frequency range of work in stopband effect, instead of filter between low frequency and high frequency
Other inoperative frequency range brings influence when effectively filtering out Antenna Operation, and filtration result is preferable.
As shown in Figure 1 and Figure 7, the ultra-wideband microstrip antenna of present embodiment further includes coupling ties 5, coupling ties
5 are set between bottom plate 1 and low frequency radiating element 22, and one end of coupling ties 5 is matched with low frequency radiating element 22.Coupling
Connector 5 can be the dielectric-slab structure of aluminium or copper or the production of other metal materials, and the coupling ties 5 of present embodiment are
Couple aluminium flake.Coupling ties 5 are set to the bottom of low frequency radiating element 22, and the left end of bottom plate 1 is equipped with the installation tip 15, and coupling connects
Fitting 51 is equipped with mounting hole 51, and mounting hole 51 is matched with the installation tip 15.When coupling ties 5 are installed as a result, it is only necessary to will
The alignment installation tip 15 of mounting hole 51 of 5 left end of coupling ties fastens.After mounting circuit boards 2, the right end of coupling ties 5
Positioned at low frequency radiating element 22 bottom and offset with low frequency radiating element 22.Coupling ties 5 and low frequency radiating element as a result,
Close coupling effect can be formed between 22, and then can widen low frequency operation frequency band.
Minor matters 215 are adjusted in addition, being additionally provided on the circuit board 2 of present embodiment, minor matters 215 is adjusted and is set to high frequency radiation
The lower left side of unit 21 adjusts 215 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 215 for applying mode are two, adjust the standing wave that minor matters 215 are used to adjust high frequency radiating element 21.
As it can be seen in figures 5 and 6, omnidirectional radiation is presented in the antenna of the utility model in working frequency range, as shown in figure 4, at angle
Radiation reaches most strong when degree is 0 ° and 180 °, as shown in figure 5, when angle is 0 ° and 180 °, radiation reaches most strong, and in height
Frequently (4000MHz) and when low frequency (800MHz), will not be distorted, and show that antenna has good and stable omnidirectional radiation
Characteristic, signal conformance is good, good communication quality, 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 microstrip antenna of mode are the ultra-thin plate structure of rectangle, and the consistency of plate structure is good, are fastened
Overall structure is more stable afterwards, and occupies little space.A plurality of reinforcing rib 12, a plurality of reinforcing rib are equipped on bottom plate 1 and outer cover 3
12 criss-cross settings, circuit board 2 are set on reinforcing rib 12.The setting of reinforcing rib 12 substantially increases bottom plate 1 and outer as a result,
The intensity of 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 two.Circuit board 2 can be fixedly installed on bottom plate 1, and the setting of two limit holes 23 and two limit tips 13 can be with
It effectively avoids circuit board 2 from misplacing or reversely install, substantially increases installation effectiveness.
1 center of bottom plate is equipped with connecting hole 14, and circuit board 2 is equipped with feed core 24, and one end of feed line 4 passes through on bottom plate 1
Connecting hole 14 be soldered at the feed core 24 of circuit board 2.The setting of connecting hole 14 facilitates the connection of 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 four.Four buckles 31 are interlocked with four card slots 11, and the diameter of outer cover 3 is greater than the diameter of bottom plate 1, thus
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 is more
To be simple, and it is 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 (7)
1. ultra-wideband microstrip antenna, including bottom plate (1), feed line (4), circuit board (2) and outer cover (3), the outer cover (3) are provide with
Outside in bottom plate (1), the circuit board (2) is set between bottom plate (1) and outer cover (3), 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
Unit (22), the high frequency radiating element (21) and low frequency radiating element (22) are respectively arranged at positive and negative the two of circuit board (2)
Face, described feed line (4) one end are successively connect with low frequency radiating element (22), high frequency radiating element (21), the high frequency radiation
Offer the first gap (211) and the second gap (212) on unit (21), first gap (211) and the second gap (212)
Length it is different, first gap (211) and the second gap (212) are set to the edge of high frequency radiating element (21), described
The 5th gap (221) is offered on low frequency radiating element (22), the 5th gap (221) is set to low frequency radiating element (22)
Edge.
2. ultra-wideband microstrip antenna according to claim 1, which is characterized in that also opened on the high frequency radiating element (21)
Equipped with third gap (213) and the 4th gap (214), the third gap (213) is round gap, the 4th gap
It (214) is bar-shaped gap, the 4th gap (214) is distributed in the side of third gap (213) in radiation.
3. ultra-wideband microstrip antenna according to claim 1, which is characterized in that further include coupling ties (5), the coupling
It closes connector (5) to be set between bottom plate (1) and low frequency radiating element (22), one end of the coupling ties (5) and low frequency
Radiating element (22) matches.
4. ultra-wideband microstrip antenna according to claim 1, which is characterized in that the circuit board (2), which is equipped with, adjusts branch
It saves (215), adjusting minor matters (215) both ends are separately connected high frequency radiating element (21) and feed line (4).
5. ultra-wideband microstrip antenna according to claim 1, which is characterized in that the high frequency radiating element (21) is rectangle
Or ellipse.
6. described in any item ultra-wideband microstrip antennas according to claim 1~5, which is characterized in that bottom plate (1) edge is set
Have card slot (11), the edge of the outer cover (3) is equipped with buckle (31), and the buckle (31) is interlocked with card slot (11).
7. described in any item ultra-wideband microstrip antennas according to claim 1~5, which is characterized in that the bottom plate (1) is equipped with
It limits the tip (13), the circuit board is equipped with limit hole (23), and the limit hole (23) matches with the limit tip (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094839.6U CN208336484U (en) | 2018-07-11 | 2018-07-11 | ultra-wideband microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821094839.6U CN208336484U (en) | 2018-07-11 | 2018-07-11 | ultra-wideband microstrip antenna |
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| CN208336484U true CN208336484U (en) | 2019-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550976A (en) * | 2018-07-11 | 2018-09-18 | 佛山市三水多恩通讯电器设备有限公司 | ultra-wideband microstrip antenna |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550976A (en) * | 2018-07-11 | 2018-09-18 | 佛山市三水多恩通讯电器设备有限公司 | ultra-wideband microstrip antenna |
| CN108550976B (en) * | 2018-07-11 | 2024-03-12 | 佛山市三水多恩通讯电器设备有限公司 | Ultra-wideband microstrip antenna |
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