CN210866497U - Ultra-wideband binary array directional antenna - Google Patents
Ultra-wideband binary array directional antenna Download PDFInfo
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- CN210866497U CN210866497U CN201921574763.1U CN201921574763U CN210866497U CN 210866497 U CN210866497 U CN 210866497U CN 201921574763 U CN201921574763 U CN 201921574763U CN 210866497 U CN210866497 U CN 210866497U
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Abstract
The utility model discloses an ultra wide band binary array directive antenna, including array element one, array element two, antenna array dielectric slab one, antenna array dielectric slab two, air bed and SMA joint, array element one is located the antenna the left side, array element two is located the antenna the right, antenna array dielectric slab one is located on the air bed, antenna array dielectric slab two is located below the air bed, array element one is the same with array element two structures, and array element one staggers the matrix with array element two back to back horizontal plane, the distance differs a wavelength, an antenna array dielectric slab openly the left side is with brass sculpture feed network, and an antenna array dielectric slab the right sculpture rectangle radiating element. The ultra-wideband binary array directional antenna is designed by using a binary array directional antenna, has radiation orientation, and has large gain (up to 8 dBi) when radiating in two directions (front and back directions), so that the bidirectional radiation is suitable for being used in the narrow and long environment of a power pipe gallery.
Description
Technical Field
The utility model belongs to the technical field of wireless communication, concretely relates to ultra wide band binary array directional aerial.
Background
In recent years, ultra-wideband is increasingly used in various fields, such as underground pipe galleries, logistics, prisons, loss prevention and the like, and in places with dense personnel and closed spaces, ultra-wideband positioning has the advantages of accurate positioning and high precision.
An Ultra Wide Band (UWB) technology is a new short-distance high-speed wireless communication technology which is currently attracting much attention, and an antenna with a transmission power lower than-41.3 dBm/MHz and a working bandwidth exceeding 500MHz is an Ultra Wide Band antenna.
The ultra-wideband is a relatively long and narrow environment, most UWB antennas radiate omni-directionally, the gain is low, and is mostly 2-3dBi, so the UWB omni-directional antenna is suitable for being used in a secondary environment.
In the confined space, outdoor GPS location must not be used, such environment needs indoor location, and the indoor location mode commonly used has wifi, bluetooth, WUB (ultra wide band) etc. but because wifi and bluetooth positioning power are great, the precision is not high, and UWB location has low-power consumption, high accuracy characteristics, consequently especially adapted to be used for the ultra wide band location.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides an ultra wide band binary array directional aerial possesses the radiation orientation, and two-way radiation (two directions around), the big (can reach 8 dBi) advantage of gain, has solved the problem that traditional directional aerial can only radiate to a direction.
The utility model provides a following technical scheme: an ultra-wideband binary array directional antenna comprises an array element I, an array element II, an antenna array dielectric plate I, an antenna array dielectric plate II, an air layer and an SMA joint, wherein the array element I is positioned on the left side of the antenna, the array element II is positioned on the right side of the antenna, the antenna array dielectric plate I is positioned on the air layer, the antenna array dielectric plate II is positioned below the air layer, the array element I and the array element II have the same structure, the array element I and the array element II are arranged in a staggered mode back to back on a horizontal plane, and the distance is different by one wavelength.
An ultra-wideband binary array directional antenna, comprising the steps of:
and 5, separating the first antenna array medium from the second antenna array medium by adopting a fixing support and a screw.
Preferably, the implementation of the array element directional antenna in step 1 includes:
the directional radiation is realized by adopting a microstrip structure, the dual polarization is realized by a dual feed mode, and the design of an air layer can reduce the loss of the medium to the antenna efficiency and increase the bandwidth of the antenna.
Preferably, the length and width of the rectangular radiating element are adjusted to 50 Ω real impedance, and finally the length and width of the rectangular radiating element are about one-half wavelength.
Preferably, the height of the air layer is adjusted to meet the requirement of 1GHz bandwidth.
Preferably, the position of the feed pin is changed to realize 50 Ω impedance matching.
Preferably, the two-stage Wilkinson equal power division feed network which is designed separately is arranged at the bottom of the antenna.
Preferably, the antenna is fixed by a plastic support and a screw nut, and the height of the air layer is accurately set.
Preferably, the two array element antennas are staggered and arrayed back to back on the horizontal plane, specifically: the first array element is positioned on the left side of the antenna, the second array element is positioned on the right side of the antenna, the first antenna array dielectric plate is positioned on the air layer, and the second antenna array dielectric plate is positioned below the air layer.
Preferably, the left side of the front surface of the antenna array dielectric plate is etched by brass to form the feed network, and the right side of the feed network is etched by brass to form the rectangular radiating element, and the right side of the back surface of the dielectric plate is etched by brass to form the metal floor without copper cladding. The left side of the front surface of the second antenna array dielectric plate is not coated with copper, the right side of the second antenna array dielectric plate is etched with a metal floor by brass, and the left side of the back surface of the second antenna array dielectric plate is etched with brass to etch the feed network on the right side of the rectangular radiating unit.
Has the advantages that:
an ultra-wideband binary array directional antenna is designed by using a binary array directional antenna, has radiation orientation, radiates in two directions (front and back directions), has large gain (up to 8 dBi), and is suitable for being used in a long and narrow environment such as a power pipe gallery.
Drawings
FIG. 1 is a schematic diagram of an array element;
FIG. 2 is a front view of an array element;
fig. 3 is a top view of the novel ultra-wideband binary array directional antenna;
fig. 4 is a side view of the novel ultra-wideband binary array directional antenna.
In the figure: 1. a rectangular radiation unit; 2. a radiation medium plate; 3. a metal floor; 4. a feed dielectric plate; 5. an SMA joint; 6. fixing the support and the screw; 7. a feed network; 8. a feed pin; 9. slotting a metal plate; 10. an air layer; 11. array element one; 12. array element two; 13. a first antenna array dielectric plate; 14. and a second antenna array dielectric plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a first array element 11 and a second array element 12 have the same structure, the first array element 11 is located on the left side of a binary array directional antenna, the second array element 12 is located on the right side of the binary array directional antenna, a first antenna array dielectric slab 13 is located on an air layer 10, a second antenna array dielectric slab 14 is located below the air layer 10, in order to realize bidirectional radiation, a rectangular radiation unit 1 of the first array element 11 is placed at the back, a feed network 7 of the first array element 11 is placed at the front, a rectangular radiation unit 1 of the second array element 12 is placed at the front, a feed network 7 of the second array element 12 is placed at the back, the two array elements form a staggered array mode back to back in a horizontal plane, in order to reduce the distance difference of the coupled array elements among the array elements by one wavelength, the feed network 7 of the first array element 11 and the rectangular radiation unit 1 of the second array element 12 are etched on the first antenna array element 13 by brass, a metal floor 3 of the first array, the feed network 7 of the second array element 12 and the rectangular radiation unit 1 of the first array element 11 are etched below the second antenna array medium plate 14 by brass, the metal floor 3 of the second array element 12 is etched above the second antenna array medium plate 14 by brass, and the first antenna array medium plate 13 and the second antenna array medium plate 14 are fixed and separated by fixing support posts and screws 6 to form an air layer 10.
Referring to fig. 3-4, the array element includes a radiation dielectric plate 2, a feed dielectric plate 4, a metal floor 3, a rectangular radiation unit 1, a feed network 7, an air layer 10, a feed pin 8, a fixing support and a screw 6, the radiation dielectric plate 2 is located above the air layer 10, the feed dielectric plate 4 is located below the air layer 10, one end of the feed pin 8 is welded to the rectangular radiation unit 1, the other end is connected with the output end of the feed network 7 after passing through the radiation dielectric plate 2, the air layer 10, the metal floor 3 and the feed dielectric plate 4, the input end of the feed network 7 is connected with an SMA joint 5, the feed pin 8 passes through the metal floor 3 and is provided with a metal plate slot 9, the rectangular radiation unit 1 is etched on the front side of the back side of the radiation dielectric plate 2 by using brass, the radiation dielectric plate 2 is not coated with copper, the metal floor 3 is etched on the front side of the feed dielectric plate 4 by using, the radiation dielectric plate 2 and the feed dielectric plate 4 are fixed and separated by the fixing support and the screw 6 to form the air layer 10, so that the structure can effectively widen the bandwidth of the antenna.
The specific implementation steps for the array element one are as follows:
and 6, separating the radiation dielectric plate 2 from the feed dielectric plate 4 by adopting a fixing support and a screw 6, and forming an air layer 10 in the middle.
This novel unified adoption F4B panel, relative dielectric constant is 2.56, and thickness is 0.8mm, and rectangular radiation unit 1 size is half wavelength, and air bed 10 size is one twelfth wavelength.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an ultra wide band binary array directional antenna, includes array element one (11), array element two (12), antenna array dielectric plate one (13), antenna array dielectric plate two (14), air bed (10) and SMA joint (5), its characterized in that: the first array element (11) is positioned on the left side of the antenna, the second array element (12) is positioned on the right side of the antenna, the first antenna array dielectric plate (13) is positioned on the air layer (10), and the second antenna array dielectric plate (14) is positioned below the air layer (10).
2. The ultra-wideband binary array directional antenna of claim 1, wherein: the first array element (11) and the second array element (12) are identical in structure, the first array element (11) and the second array element (12) are arranged in a staggered mode on the back-to-back horizontal plane, and the distance is different by one wavelength.
3. The ultra-wideband binary array directional antenna of claim 1, wherein: the array element I (11) comprises a radiation dielectric plate (2), a feed dielectric plate (4), a metal floor (3), a rectangular radiation unit (1), a feed network (7), an air layer (10), a feed pin (8), a fixing support and a screw (6), wherein the radiation dielectric plate (2) is positioned on the air layer (10), the feed dielectric plate (4) is positioned below the air layer (10), one end of the feed pin (8) is welded on the rectangular radiation unit (1) and penetrates through the radiation dielectric plate (2), the air layer (10), the metal floor (3) and the feed dielectric plate (4) to be connected with the output end of the feed network (7).
4. The ultra-wideband binary array directional antenna of claim 1, wherein: the feed network (7) is etched on the left side of the front face of a first antenna array dielectric plate (13) by using brass, the rectangular radiation unit (1) is etched on the right side of the first antenna array dielectric plate (13), the metal floor (3) is etched on the left side of the back face of the first antenna array dielectric plate (13), copper is not coated on the right side of the first antenna array dielectric plate (14), the metal floor (3) is etched on the right side of a second antenna array dielectric plate (14), the rectangular radiation unit (1) is etched on the left side of the back face of the second antenna array dielectric plate (14) by using brass, the feed network (7) is etched on the right side of the second antenna array dielectric plate (14), the first antenna array dielectric plate (13) and the second antenna array dielectric plate (14) are supported and separated by a fixed support and a screw (6), and an air layer (10) is formed in.
5. The ultra-wideband binary array directional antenna of claim 3, wherein: the size of the rectangular radiation unit (1) is related to the working frequency of the two-array element directional antenna, the thickness of the air layer (10) is related to the working bandwidth of the two-array element directional antenna, the working frequency band of the two-array element directional antenna is 4GHz, and the bandwidth of the two-array element directional antenna is 1.2 GHz.
6. The ultra-wideband binary array directional antenna of claim 3, wherein: the feeding pins (8) are distributed in 90 degrees, the distribution of the feeding pins (8) is related to the polarization form of the two-array element directional antenna, and the polarization of the two-array element directional antenna is dual linear polarization.
7. The ultra-wideband binary array directional antenna of claim 3, wherein: the feed network (7) is a two-stage Wilkinson equal power division.
8. An ultra-wideband binary array directional antenna according to any of claims 3 to 5, wherein: the size of the rectangular radiation unit (1) is about one half of the working frequency, and the height of the air layer (10) is about one twelfth of the working frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574763.1U CN210866497U (en) | 2019-09-21 | 2019-09-21 | Ultra-wideband binary array directional antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574763.1U CN210866497U (en) | 2019-09-21 | 2019-09-21 | Ultra-wideband binary array directional antenna |
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| CN210866497U true CN210866497U (en) | 2020-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883927A (en) * | 2020-08-05 | 2020-11-03 | 中国电子科技集团公司第十四研究所 | Integrated 5G array antenna unit |
| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
-
2019
- 2019-09-21 CN CN201921574763.1U patent/CN210866497U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883927A (en) * | 2020-08-05 | 2020-11-03 | 中国电子科技集团公司第十四研究所 | Integrated 5G array antenna unit |
| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
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