CN218123713U - Double-frequency directional antenna - Google Patents
Double-frequency directional antenna Download PDFInfo
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- CN218123713U CN218123713U CN202222447056.4U CN202222447056U CN218123713U CN 218123713 U CN218123713 U CN 218123713U CN 202222447056 U CN202222447056 U CN 202222447056U CN 218123713 U CN218123713 U CN 218123713U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model belongs to the technical field of the antenna and specifically relates to dual-frenquency directional aerial. The antenna comprises an antenna body, wherein the antenna body is composed of an upper antenna radiator metal layer, a dielectric layer and a lower antenna radiator metal layer, the dielectric layer is fixed between the upper antenna radiator metal layer and the lower antenna radiator metal layer, and a first antenna radiator, a second antenna radiator, a third antenna radiator, a fourth antenna radiator, a fifth antenna radiator, a sixth antenna radiator, a first antenna feeder, a second antenna feeder, a third antenna feeder, a fourth antenna feeder, a fifth antenna feeder and a first antenna pad are arranged on the upper antenna radiator metal layer. The utility model discloses the effectual longitudinal dimension who shortens the antenna to make two frequency channels of coverage wireless local area network 2.4-2.5GHz and 5.15-5.85GHz that its standing wave can be good. The antenna is rotated to enable the maximum radiation direction of the antenna to be aligned with the incoming wave direction of the wireless network, and the communication quality between the wireless camera and the wireless network can be effectively enhanced.
Description
Technical Field
The utility model belongs to the technical field of the antenna and specifically relates to dual-frenquency directional aerial.
Background
The wireless monitoring camera is connected with the network in a radio frequency mode, a network cable does not need to be pre-buried in advance for a building, and the wireless monitoring camera is very convenient and fast to use in practice. Common antennas used in wireless cameras are typically whip antennas, having a horizontal omnidirectional radiation pattern. Mobile terminal devices often require antennas with horizontally omnidirectional radiation patterns to meet communication quality requirements in various mobile scenarios. However, the wireless monitoring camera is usually installed in a fixed place such as an indoor or outdoor wall to ensure monitoring coverage of a key area, and a horizontal omnidirectional radiation directional diagram of the antenna is not necessarily completely applicable. On one hand, because the antenna is generally tightly attached to a wall body at the installation and use position, if the antenna radiates in all directions on the horizontal plane, certain energy loss can be caused; on the other hand, the wireless monitoring camera is accessed to the network in a wireless mode, the network signal generally has certain directivity when reaching the position of the wireless camera, and the direction of the strongest signal is generally unchanged for a fixed position, if the network signal is weaker at the position of the camera, good network communication is difficult to ensure by adopting an omnidirectional antenna with lower antenna gain.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem described in the background art, the present invention provides a dual-band directional antenna. The antenna effectively shortens the longitudinal dimension of the antenna, and enables standing waves of the antenna to well cover two frequency bands of 2.4-2.5GHz and 5.15-5.85GHz of a wireless local area network. The antenna is rotated to enable the maximum radiation direction of the antenna to be aligned with the incoming wave direction of the wireless network, and the communication quality between the wireless camera and the wireless network can be effectively enhanced.
The utility model provides a technical scheme that its technical problem adopted is:
a dual-frequency directional antenna comprises an antenna body, wherein the antenna body is composed of an upper antenna radiator metal layer, a dielectric layer and a lower antenna radiator metal layer, the dielectric layer is fixed between the upper antenna radiator metal layer and the lower antenna radiator metal layer, a first antenna radiator, a second antenna radiator, a third antenna radiator, a fourth antenna radiator, a fifth antenna radiator, a sixth antenna radiator, a first antenna feeder, a second antenna feeder, a third antenna feeder, a fourth antenna feeder, a fifth antenna feeder and a first antenna pad are arranged on the upper antenna radiator metal layer, and a seventh antenna radiator, an eighth antenna radiator, a ninth antenna radiator, a tenth antenna radiator, an eleventh antenna radiator, a twelfth antenna radiator, a sixth antenna feeder, a seventh antenna feeder, an eighth antenna feeder, a ninth antenna feeder, a tenth antenna feeder and a second antenna pad are arranged on the lower antenna radiator metal layer.
Specifically, the first antenna feeder, the second antenna feeder, the third antenna feeder, the fourth antenna feeder and the fifth antenna feeder are sequentially connected to form a feeder main body a, the first antenna radiator, the second antenna radiator, the third antenna radiator, the fourth antenna radiator, the fifth antenna radiator and the sixth antenna radiator are vertically connected to the feeder main body a in a staggered mode, and the first antenna pad is connected with the first antenna radiator.
Specifically, the sixth antenna feeder, the seventh antenna feeder, the eighth antenna feeder, the ninth antenna feeder and the tenth antenna feeder are sequentially connected to form a feeder main body B, the seventh antenna radiator, the eighth antenna radiator, the ninth antenna radiator, the tenth antenna radiator, the eleventh antenna radiator and the twelfth antenna radiator are vertically connected to the feeder main body B in a staggered manner, the second antenna pad is connected to the seventh antenna radiator, and projections of the feeder main body B and the feeder main body a on a horizontal plane are completely overlapped.
Specifically, the sixth antenna radiator has the same shape as the twelfth antenna radiator, the fifth antenna radiator has the same shape as the eleventh antenna radiator, the fourth antenna radiator has the same shape as the tenth antenna radiator, the third antenna radiator has the same shape as the ninth antenna radiator, the second antenna radiator has the same shape as the eighth antenna radiator, and the first antenna radiator has the same shape as the seventh antenna radiator.
Specifically, the first antenna bonding pad is welded on an inner conductor of the radio frequency coaxial line for feeding the antenna, and the second antenna bonding pad is welded on an outer conductor of the radio frequency coaxial line for feeding the antenna.
Specifically, the antenna main body is a double-sided copper-clad PCB.
The beneficial effects of the utility model are that: the utility model provides a dual-frenquency directional aerial. The antenna effectively shortens the longitudinal dimension of the antenna, and enables standing waves of the antenna to well cover two frequency bands of 2.4-2.5GHz and 5.15-5.85GHz of a wireless local area network. The antenna is rotated to enable the maximum radiation direction of the antenna to be aligned with the incoming wave direction of the wireless network, and the communication quality between the wireless camera and the wireless network can be effectively enhanced.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a front view of the present invention;
fig. 2 is a rear view of the present invention;
in the figure, 1 is an upper metal layer of an antenna radiator, 3 is a lower metal layer of the antenna radiator, 4 is an antenna radiator one, 5 is an antenna radiator two, 6 is an antenna radiator three, 7 is an antenna radiator four, 8 is an antenna radiator five, 9 is an antenna radiator six, 10 is an antenna feeder one, 11 is an antenna feeder two, 12 is an antenna feeder three, 13 is an antenna feeder four, 14 is an antenna feeder five, 15 is an antenna pad one, 16 is an antenna radiator seven, 17 is an antenna radiator eight, 18 is an antenna radiator nine, 19 is an antenna radiator ten, 20 is an antenna radiator eleven, 21 is an antenna radiator twelve, 22 is an antenna feeder six, 23 is an antenna feeder seven, 24 is an antenna feeder eight, 25 is an antenna radiator nine, 26 is an antenna feeder ten, 27 is an antenna pad two.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Fig. 1 is a front view of the present invention; fig. 2 is a rear view of the present invention.
A dual-frequency directional antenna comprises an antenna body, wherein the antenna body is composed of an upper antenna radiator metal layer 1, a dielectric layer and a lower antenna radiator metal layer 3, the dielectric layer is fixed between the upper antenna radiator metal layer 1 and the lower antenna radiator metal layer 3, a first antenna radiator 4, a second antenna radiator 5, a third antenna radiator 6, a fourth antenna radiator 7, a fifth antenna radiator 8, a sixth antenna radiator 9, a first antenna feeder 10, a second antenna feeder 11, a third antenna feeder 12, a fourth antenna feeder 13, a fifth antenna feeder 14 and a first antenna pad 15 are arranged on the upper antenna radiator metal layer 1, and a seventh antenna radiator 16, an eighth antenna radiator 17, a ninth antenna radiator 18, a tenth antenna radiator 19, an eleventh antenna radiator 20, a twelfth antenna radiator 21, a sixth antenna feeder 22, a seventh antenna feeder 23, an eighth antenna feeder 24, a ninth antenna feeder 25, a tenth antenna feeder 26 and a second antenna pad 27 are arranged on the lower antenna radiator metal layer 3.
As shown in fig. 1, the first antenna feeder 10, the second antenna feeder 11, the third antenna feeder 12, the fourth antenna feeder 13, and the fifth antenna feeder 14 are sequentially connected to form a feeder body a, the first antenna radiator 4, the second antenna radiator 5, the third antenna radiator 6, the fourth antenna radiator 7, the fifth antenna radiator 8, and the sixth antenna radiator 9 are vertically connected to the feeder body a in a staggered manner, and the first antenna pad 15 is connected to the first antenna radiator 4.
As shown in fig. 2, an antenna feeder six 22, an antenna feeder seven 23, an antenna feeder eight 24, an antenna feeder nine 25, and an antenna feeder ten 26 are sequentially connected to form a feeder main body B, an antenna radiator seven 16, an antenna radiator eight 17, an antenna radiator nine 18, an antenna radiator ten 19, an antenna radiator eleven 20, and an antenna radiator twelve 21 are vertically connected to the feeder main body B in a staggered manner, an antenna pad two 27 is connected to the antenna radiator seven 16, and the projections of the feeder main body B and the feeder main body a on the horizontal plane are completely overlapped.
Antenna radiator six 9 is the same as antenna radiator twelve 21 in shape, antenna radiator five 8 is the same as antenna radiator eleven 20 in shape, antenna radiator four 7 is the same as antenna radiator ten 19 in shape, antenna radiator three 6 is the same as antenna radiator nine 18 in shape, antenna radiator two 5 is the same as antenna radiator eight 17 in shape, and antenna radiator one 4 is the same as antenna radiator seven 16 in shape.
The first antenna pad 15 is soldered to the inner conductor of the radio frequency coaxial line for feeding the antenna, and the second antenna pad 27 is soldered to the outer conductor of the radio frequency coaxial line for feeding the antenna.
The antenna main body is a double-sided copper-clad PCB.
The antenna array comprises a first antenna radiator 4, a second antenna radiator 5, a third antenna radiator 6, a seventh antenna radiator 16, an eighth antenna radiator 17 and a ninth antenna radiator 18, wherein the antenna resonance covers 5.15-5.85GHz, the first antenna radiator 4 and the seventh antenna radiator 16, the second antenna radiator 5 and the eighth antenna radiator 17, the third antenna radiator 6 and the ninth antenna radiator 18 respectively form an antenna oscillator, and the length of the antenna oscillator and the distance between the antenna oscillators accord with a log-periodic antenna law.
The antenna four radiator 7, the antenna five radiator 8, the antenna six radiator 9, the antenna ten radiator 19, the antenna eleven radiator 20 and the antenna twelve radiator 21 form a low-frequency radiation array, and antenna resonance covers 2.4-2.5GHz, wherein the antenna four radiator 7, the antenna ten radiator 19, the antenna five radiator 8, the antenna eleven radiator 20, the antenna six radiator 9 and the antenna twelve radiator 21 respectively form an antenna element, and the length of the antenna element and the distance between the antenna elements accord with a log-periodic antenna rule.
The distance between the high frequency radiating array and the low frequency radiating array is the length of antenna feed three 12 or antenna feed eight 24.
The layout of the antenna elements meets the cross feeding requirement of the feeder line, and the maximum radiation direction of the antenna is from the longest element to the shortest element. Compared with the method that a log-periodic antenna array covers a frequency band from 2.4GHz to 5.85GHz and is split into a high-frequency radiation array and a low-frequency radiation array, the number of antenna elements can be effectively reduced, the longitudinal length of the antenna is reduced, and therefore the miniaturization of the antenna is achieved. In addition, the high-frequency radiation array and the low-frequency radiation array can have different log-periodic antenna array design parameters, and the antenna design has higher flexibility, for example, the antenna performance can be optimized through regular research on parameters such as half vertex angle of the high-frequency and low-frequency array, scale factor of front and back oscillator length, oscillator thickness and the like.
The utility model discloses use thickness to be 0.8 mm's FR4 PCB board, be 15 degrees at antenna array half apex angle, the scale factor of the adjacent oscillator length of high frequency radiation array is 1.15, and the scale factor of the adjacent oscillator length of low frequency radiation array is 1.20, and when antenna longitudinal dimension 40mm, all gain the standing wave in high low frequency band and be less than 2 results to antenna gain in the two-frequency band all is greater than 5.8dB.
According to the practical use condition, if the antenna gain is required to be further improved, only the same design method needs to be adopted, and the number of the antenna elements is properly increased. The antenna with the design has small size, and can better meet the installation and use requirements of fixed position equipment such as a wireless camera.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a dual-frenquency directional antenna, includes the antenna main part, characterized by, the antenna main part comprises antenna radiator upper metal layer (1), dielectric layer, antenna radiator lower metal layer (3), the dielectric layer is fixed between antenna radiator upper metal layer (1) and antenna radiator lower metal layer (3), be equipped with antenna radiator one (4) on antenna radiator upper metal layer (1), antenna radiator two (5), antenna radiator three (6), antenna radiator four (7), antenna radiator five (8), antenna radiator six (9), antenna feeder one (10), antenna feeder two (11), antenna feeder three (12), antenna feeder four (13), antenna feeder five (14), antenna pad one (15), be equipped with antenna radiator seven (16) on antenna radiator lower metal layer (3), antenna radiator eight (17), antenna radiator nine (18), antenna radiator ten (19), antenna eleven (20), antenna radiator twelve (21), antenna feeder six (22), antenna feeder seven (23), antenna feeder eight (24), antenna feeder nine (25), the pad ten (26), antenna two (27).
2. The dual-band directional antenna of claim 1, wherein: the antenna feeder I (10), the antenna feeder II (11), the antenna feeder III (12), the antenna feeder IV (13) and the antenna feeder V (14) are sequentially connected to form a feeder main body A, the antenna radiator I (4), the antenna radiator II (5), the antenna radiator III (6), the antenna radiator IV (7), the antenna radiator V (8) and the antenna radiator six (9) are perpendicularly connected to the feeder main body A in a staggered mode, and the antenna bonding pad I (15) is connected with the antenna radiator I (4).
3. The dual-band directional antenna of claim 2, wherein: the antenna feeder body B is formed by sequentially connecting an antenna feeder six (22), an antenna feeder seven (23), an antenna feeder eight (24), an antenna feeder nine (25) and an antenna feeder ten (26), the antenna radiator seven (16), the antenna radiator eight (17), the antenna radiator nine (18), the antenna radiator ten (19), the antenna radiator eleven (20) and the antenna radiator twelve (21) are perpendicularly connected to the feeder body B in a staggered mode, an antenna pad two (27) is connected with the antenna radiator seven (16), and the projections of the feeder body B and the feeder body A on the horizontal plane are completely overlapped.
4. The dual-band directional antenna of claim 1, wherein: the antenna radiator six (9) is identical to the antenna radiator twelve (21), the antenna radiator five (8) is identical to the antenna radiator eleven (20), the antenna radiator four (7) is identical to the antenna radiator ten (19), the antenna radiator three (6) is identical to the antenna radiator nine (18), the antenna radiator two (5) is identical to the antenna radiator eight (17), and the antenna radiator one (4) is identical to the antenna radiator seven (16).
5. The dual-band directional antenna of claim 1, wherein: the antenna bonding pad I (15) is welded on an inner conductor of the radio frequency coaxial line used for feeding the antenna, and the antenna bonding pad II (27) is welded on an outer conductor of the radio frequency coaxial line used for feeding the antenna.
6. The dual-band directional antenna of claim 1, wherein: the antenna main body is a double-sided copper-clad PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222447056.4U CN218123713U (en) | 2022-09-16 | 2022-09-16 | Double-frequency directional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222447056.4U CN218123713U (en) | 2022-09-16 | 2022-09-16 | Double-frequency directional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218123713U true CN218123713U (en) | 2022-12-23 |
Family
ID=84531335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222447056.4U Active CN218123713U (en) | 2022-09-16 | 2022-09-16 | Double-frequency directional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218123713U (en) |
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2022
- 2022-09-16 CN CN202222447056.4U patent/CN218123713U/en active Active
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