CN211017393U - Built-in dual-frequency dual-polarization directional antenna of optical fiber distribution system equipment - Google Patents
Built-in dual-frequency dual-polarization directional antenna of optical fiber distribution system equipment Download PDFInfo
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- CN211017393U CN211017393U CN202020056435.9U CN202020056435U CN211017393U CN 211017393 U CN211017393 U CN 211017393U CN 202020056435 U CN202020056435 U CN 202020056435U CN 211017393 U CN211017393 U CN 211017393U
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Abstract
The utility model discloses a built-in dual-frenquency double polarization directional aerial of fiber distribution system equipment, a serial communication port, it includes the reflection bottom plate, the dual-port combiner, the double polarization low frequency radiation oscillator, the double polarization high frequency radiation oscillator, the reflection bottom plate is provided with-45 degrees and draws forth the port, +45 degrees and draws forth the port, the dual-port combiner is arranged in above the reflecting plate and is hugged closely rather than, the double polarization low frequency radiation oscillator, the double polarization high frequency radiation oscillator is connected with coaxial cable with the dual-port combiner, double polarization low frequency radiation oscillator and double polarization high frequency radiation oscillator signal output to the dual-port combiner. The utility model discloses simple structure, it is with low costs, high performance.
Description
Technical Field
The utility model relates to a wireless communication technology field, more specifically relate to an optical fiber distribution system equipment embeds dual-frenquency double polarization directional aerial.
Background
With the rapid development of mobile communication technology and the popularization and application of terminal equipment, wireless communication data connection is closely related to work, study and life of people. Through development for more than 10 years, the mobile communication indoor coverage system tail end wireless transceiving antenna is distributed in various indoor public places such as large supermarkets, hospitals, underground parking lots, conference centers, hotels and the like, and the bridge which meets the requirement that people use personal mobile terminals to be in information connection with the whole world is provided all the time and anywhere. The antenna volumes of the indoor separate systems are large, the attractiveness is affected, the installation is complex, the auxiliary procedures are multiple, and the workload is large. The problem that an optical fiber distribution system is the extension of a mobile network in indoor and outdoor coverage of a building is solved, the optical fiber distribution system is an important means for improving the coverage width and depth of the network, absorbing indoor and outdoor telephone traffic and improving the network quality and service quality, and a dual-frequency dual-polarization directional antenna needs to be created in order to meet the miniaturization of mobile communication optical fiber communication equipment and the requirement that network communication signals are converted into optical fiber signals to be transmitted at a longer distance.
Disclosure of Invention
The utility model aims at solving prior art not enough, and the one that provides is with low costs, and the high performance can satisfy mobile communication fiber communication equipment miniaturization moreover, can satisfy network communication signal conversion again and be fiber signal, carries out the built-in dual-frenquency dual polarization directional aerial of fiber distribution system equipment of farther distance transmission.
The utility model discloses an adopt following technical solution to realize above-mentioned purpose: the utility model provides an optical fiber distribution system equipment embeds dual-frenquency double polarization directional aerial, a serial communication port, it includes the reflection bottom plate, the dual-port combiner, double polarization low frequency radiation oscillator, double polarization high frequency radiation oscillator, the reflection bottom plate is provided with-45 degrees and draws forth the port, +45 degrees and draws forth the port, the dual-port combiner is arranged in on the reflecting plate and hugs closely with it, double polarization low frequency radiation oscillator, double polarization high frequency radiation oscillator are connected with coaxial cable with the dual-port combiner, double polarization low frequency radiation oscillator and double polarization high frequency radiation oscillator signal output to the dual-port combiner with 2G, 3G, 4G signal synthesis one-way signal to each same polarization port.
As a further explanation of the above scheme, the low-frequency design of the dual-port combiner mainly consists of a +45 low-frequency conversion line end and a-45 low-frequency conversion line end; the high-frequency design of the dual-port combiner mainly comprises a +45 high-frequency conversion line end and a-45 high-frequency conversion line end, and further synthesizes a +45 low-frequency output port, a +45 high-frequency output port and a-45 low-frequency output port by using the same-polarization low-frequency and high-frequency conversion lines.
Further, the dual-polarized low-frequency radiation oscillator and the dual-polarized high-frequency radiation oscillator output the same polarization signal to the low-frequency end 820-.
Further, the dual-polarized low-frequency radiation oscillator is arranged on the reflecting plate, and the distance H1 from the reflecting plate is 35-55 mm; the dual-polarized high-frequency radiation oscillator is arranged on the reflecting plate, and the distance H2 from the reflecting plate is 30-40 mm.
Further, the dual-polarized low-frequency radiating oscillator comprises a +45 oscillator and a-45 oscillator, wherein the +45 oscillator is mainly composed of a pair of radiating oscillators arranged diagonally, and a feed part of the +45 oscillator is fed and matched to the end of a +45 low-frequency conversion line of the dual-port combiner through a coaxial cable;
the-45 oscillator is mainly composed of a pair of radiating oscillators II arranged diagonally, and the feeding part of the-45 oscillator is fed and matched to the end of the low-frequency conversion line of the two-port combiner-45 through a coaxial cable.
Furthermore, a high-frequency left baffle and a high-frequency right baffle are arranged on the reflection bottom plate and are respectively arranged on two sides of the second radiation oscillator, the angle and the front-to-back ratio of a directional diagram of the dual-polarized high-frequency radiation oscillator are enhanced, the baffle is added to control the half-power angle of the high-frequency segment 1710-2650MHZ within the range of 80 degrees, and the front-to-back ratio is improved by about 1-3dB on the original basis.
Furthermore, the reflection bottom plate is provided with the adjusting piece, so that the isolation between the two ports is further improved, the index can reach more than 24dB, and the isolation is improved.
The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:
the utility model discloses a mainly by the reflection bottom plate, the dual port combiner, dual polarization low frequency radiation oscillator, dual polarization directional antenna structure that dual polarization high frequency radiation oscillator constitutes, the reflection bottom plate is provided with-45 degrees and draws forth the port, +45 degrees and draws forth the port, dual port combiner is arranged in on the reflecting plate and is hugged closely rather than, dual polarization low frequency radiation oscillator, dual polarization high frequency radiation oscillator is connected coaxial cable with the combiner, dual polarization low frequency radiation oscillator and dual polarization high frequency radiation oscillator signal output to dual port combiner, both satisfied the miniaturization of mobile communication fiber communication equipment, can satisfy again that network communication signal converts the fiber signal into and carries out farther distance transmission.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
fig. 4 is a side view of the present invention;
fig. 5-24 are antenna +45 degree and-45 degree H-plane and E-plane patterns, cross-polarization (XPD) patterns.
Description of reference numerals: 1. the dual-port combiner comprises a reflection bottom plate 2, a dual-port combiner 2-1, a +45 low-frequency conversion line end 2-2, a-45 low-frequency conversion line end 2-3, a +45 high-frequency conversion line end 2-4, a-45 high-frequency conversion line end 2-5, a +45 low-frequency and high-frequency output port 2-6, a-45 low-frequency and high-frequency output port 3, a dual-polarized low-frequency radiation oscillator 3-1, a radiation oscillator I3-2, a radiation oscillator II 4, a dual-polarized high-frequency radiation oscillator 4-1, a radiation oscillator III 4-2, a radiation oscillator IV 5, a-45-degree lead-out port 6, a + 45-degree lead-out port 7, a coaxial cable 8, a left.
Detailed Description
The technical solution is described in detail with reference to specific embodiments below.
As shown in figures 1-4, the utility model relates to a built-in dual-frequency dual-polarization directional antenna of an optical fiber distribution system device, which comprises a reflection bottom plate 1, a dual-port combiner 2, a dual-polarization low-frequency radiation oscillator 3 and a dual-polarization high-frequency radiation oscillator 4, wherein the reflection bottom plate is provided with a-45-degree leading-out port 5 and a + 45-degree leading-out port 6, the dual-port combiner is arranged on the reflection plate and is closely attached to the reflection plate, the dual-polarization low-frequency radiation oscillator, the dual-polarization high-frequency radiation oscillator and the dual-port combiner are connected with a coaxial cable 7, signals of the dual-polarization low-frequency radiation oscillator and the dual-polarization high-frequency radiation oscillator are output to the dual-port combiner, the low-frequency design of the dual-port combiner mainly comprises a +45 low-frequency conversion line end 2-1 and a-45-low-frequency conversion line end 2-4, the high-frequency conversion line of each port is further combined into a low-frequency and high-frequency conversion line, the low-frequency and high-frequency conversion line is combined into a low-frequency and low-frequency radiation oscillator 2-frequency and high-frequency radiation oscillator, the low-frequency and high-frequency radiation oscillator are combined into a square radiation oscillator, the FR radiation oscillator is composed of a square radiation oscillator with a square radiation oscillator, the dimensions FR radiation oscillator, wherein the high-frequency radiation oscillator is composed of FR radiation oscillator, the FR radiation oscillator is composed of a square radiation oscillator, the square radiation oscillator is composed of a square radiation oscillator, the square.
Further, the dual-polarized low-frequency radiation oscillator comprises a +45 oscillator I and a-45 oscillator I, wherein the +45 oscillator I mainly comprises a pair of radiation oscillators I3-1 arranged at a 45-degree angle in a diagonal manner, and a feed part of the radiation oscillators is fed and matched to a dual-port combiner +45 low-frequency conversion line end through a coaxial cable; the 45 oscillator I is mainly composed of a pair of radiation oscillators II 3-2 arranged at an angle of 45 degrees in a diagonal manner, and the feeding part of the 45 oscillator I is fed and matched to the end of the two-port combiner-45 low-frequency conversion line through a coaxial cable.
Further, the dual-polarized high-frequency radiation element 4 is placed on the reflection plate. The dual-polarized high-frequency radiation oscillator comprises a +45 oscillator II and a-45 oscillator II, wherein the +45 oscillator II is an 8-shaped radiation oscillator formed by a pair of radiation oscillators III 4-1, and a feed part is matched with a dual-port combiner and a +45 high-frequency conversion line end 2-3 through feeding by a coaxial cable 7; the-45 oscillator is an 8-shaped radiation oscillator formed by a pair of four radiation oscillators 4-2, and a feeding part is subjected to feeding matching to a two-port combiner-45 high-frequency conversion line end 2-4 through a coaxial cable 7.
Furthermore, a left baffle 8 and a right baffle 9 are arranged on the reflection bottom plate, the high-frequency left baffle and the high-frequency right baffle are respectively arranged on two sides of the radiation oscillator II, the angle and the front-to-back ratio of a directional diagram of the dual-polarization high-frequency radiation oscillator are enhanced, the baffles are added to control the half-power angle of the high-frequency segment 1710-2650MHZ within the range of 80 degrees, and the front-to-back ratio is improved by about 1-3dB on the original basis. The reflection bottom plate is provided with the test adjusting piece 10, so that the isolation between the two ports is further improved, the index can reach more than 24dB, and the isolation is improved.
The technical scheme includes that the antenna is completely built in the communication equipment, 2G, 3G and 4G communication frequency bands are covered by low-frequency 820-. The low-frequency signal and the high-frequency signal are combined into a port +45 and a port-45, and the main performance indexes of the two ports are as follows: voltage standing wave ratio is less than or equal to 1.8, gain low frequency band is greater than 6dBi, high frequency band is greater than 7dBi, isolation is greater than 24dB, 0-degree cross polarization (XPD) is greater than or equal to 12dB, front-to-back ratio is greater than or equal to 12dB, antenna H-plane and E-plane directional diagrams at +45 degrees and-45 degrees, and cross polarization (XPD) directional diagrams (figures 5-24).
In the embodiment, as shown in fig. 2, an internal reflection plate 1 is designed, the reflection plate is made of a metal material, the size of the reflection plate is 1-L equal to 220 plus 260mm, 1-W equal to 120 plus 180mm, a dual-port combiner 2 is further arranged on the reflection plate to fully cover a copper surface and be tightly attached to the reflection plate, signals of a dual-polarized low-frequency radiation oscillator and a dual-polarized high-frequency radiation oscillator are designed to be output to a low-frequency 960MHz end and a high-frequency 1710 plus 2650MHz end of the dual-port combiner, two paths of low-frequency radiation oscillators and the same polarization signal of the high-frequency radiation oscillator are combined into a signal dual-port combiner 2, no mutual interference of current is met between the low-frequency end and the high-frequency end of the dual-port combiner, low-frequency conversion lines and high-frequency conversion lines adopt different conversion shapes, the dual-port combiner 2 adopts a PCB material as a substrate, the material is a PTFE high-frequency plate, the dielectric constant is 2.2-2.55, a conversion line is formed on the PTFE plate, a conversion line is formed by overlaying the conversion line on the PTFE plate, the dual-port is further designed to be a low-frequency conversion line output port of mh-port 140-L equal to 170mm, a high-frequency conversion line is further designed to be output port of the high-frequency conversion line, and a high-frequency conversion line output port of the high-frequency conversion line, and a high-frequency conversion.
The method comprises the steps of further designing a low-frequency dual-polarized radiation oscillator 3, placing the low-frequency dual-polarized radiation oscillator on a reflecting plate, enabling the distance H1 from the reflecting plate to be 35-55mm, further designing a high-frequency dual-polarized radiation oscillator 4, placing the high-frequency dual-polarized radiation oscillator on the reflecting plate, enabling the distance H2 from the reflecting plate to be 30-40mm, enabling the radiation oscillator to be made of a PCB material FR-4 material, enabling the dielectric constant to be 4.4-4.6, covering copper on the FR-4 material, carving the radiation oscillator on a covering area, improving a balun design scheme by the dual-polarized radiation oscillator, enabling the external shape of the high-frequency dual-polarized radiation oscillator to be similar to an 8 shape, enabling the high-frequency dual-polarized radiation oscillator to be square in size of 4-L45-55 mm, enabling a pair of 8-shaped radiation oscillators to be composed of 4-1 and 4-2, and enabling a feeding portion to be matched with the end of a combiner +45 high.
Compared with the prior art, the utility model, be the extension of mobile network indoor and outdoor cover in the building, be the important means that promotes network coverage width and degree of depth, absorption indoor outer telephone traffic, promotion network quality and service quality, for satisfying mobile communication fiber communication equipment miniaturization, can satisfy again that network communication signal converts the fiber signal into and carries out farther distance transmission.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (7)
1. The built-in dual-frequency dual-polarization directional antenna of the optical fiber distribution system equipment is characterized by comprising a reflection bottom plate, a dual-port combiner, a dual-polarization low-frequency radiation oscillator and a dual-polarization high-frequency radiation oscillator, wherein the reflection bottom plate is provided with a-45-degree leading-out port and a + 45-degree leading-out port, the dual-port combiner is arranged on the reflection plate and is tightly attached to the reflection plate, the dual-polarization low-frequency radiation oscillator, the dual-polarization high-frequency radiation oscillator and the dual-port combiner are connected with a coaxial cable, and signals of the dual-polarization low-frequency radiation oscillator.
2. The fiber distribution system equipment built-in dual-frequency dual-polarized directional antenna according to claim 1, characterized in that the low-frequency design of the dual-port combiner is mainly composed of +45 dual-polarized low-frequency radiating oscillators connected to the low-frequency transforming line end and-45 dual-polarized low-frequency radiating oscillators connected to the low-frequency transforming line end; the high-frequency design of the dual-port combiner is mainly composed of a +45 dual-polarized high-frequency radiation oscillator connected with a high-frequency conversion line end and a-45 dual-polarized high-frequency radiation oscillator connected with a high-frequency conversion line end, the same-end low-frequency and high-frequency conversion lines are further combined into a single line, and full-band signals, namely +45 polarized and-45 polarized radiation signals, are output to the port of the dual-port combiner.
3. The optical fiber distribution system equipment built-in dual-frequency dual-polarized directional antenna as recited in claim 1, wherein signals of the dual-polarized low-frequency radiating element and the dual-polarized high-frequency radiating element are output to a low-frequency end of 820-.
4. The fiber distribution system equipment built-in dual-frequency dual-polarized directional antenna according to claim 1, wherein the dual-polarized low-frequency radiating element is placed on the reflecting plate at a distance H1-55 mm from the reflecting plate; the dual-polarized high-frequency radiation oscillator is arranged on the reflecting plate, and the distance H2 from the reflecting plate is 30-40 mm.
5. The fiber distribution system equipment built-in dual-frequency dual-polarization directional antenna according to claim 1, wherein the dual-polarization low-frequency radiating oscillator comprises a +45 oscillator and a-45 oscillator, the +45 oscillator is mainly composed of a pair of radiating oscillators arranged diagonally at an angle of 45 degrees, and a feeding part of the first radiating oscillator is fed and matched to a port of a dual-port combiner through a coaxial cable to form a low-frequency conversion line end of the + 45-polarization low-frequency radiating oscillator;
the-45 oscillator is mainly composed of a pair of second radiating oscillators arranged in a 45-degree angle in a diagonal mode, and a feeding portion of the second radiating oscillator is fed and matched to a port of the dual-port combiner through a coaxial cable to form a low-frequency conversion line end of the low-frequency radiating oscillator polarized by-45 degrees.
6. The fiber distribution system equipment built-in dual-frequency dual-polarized directional antenna according to claim 1, wherein a high-frequency left baffle and a high-frequency right baffle are arranged on the reflection bottom plate, and the high-frequency left baffle and the high-frequency right baffle are respectively arranged on two sides of the radiation oscillator.
7. The fiber distribution system in-device dual-frequency dual-polarization directional antenna according to claim 1, wherein the reflective bottom plate is provided with a tuning strip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020056435.9U CN211017393U (en) | 2020-01-10 | 2020-01-10 | Built-in dual-frequency dual-polarization directional antenna of optical fiber distribution system equipment |
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| CN202020056435.9U CN211017393U (en) | 2020-01-10 | 2020-01-10 | Built-in dual-frequency dual-polarization directional antenna of optical fiber distribution system equipment |
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