CN215644965U

CN215644965U - UHF circular polarization integrated omnidirectional transmitting antenna

Info

Publication number: CN215644965U
Application number: CN202122167003.2U
Authority: CN
Inventors: 卞国荣
Original assignee: Jiangsu Ningguang Communication Equipment Co ltd
Current assignee: Jiangsu Ningguang Communication Equipment Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-25
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a UHF circular polarization integrated omnidirectional transmitting antenna which comprises an installation base, wherein the top of the installation base is fixedly connected with a glass fiber reinforced plastic cover, and a main antenna installation support is arranged at the top of the installation base and positioned in an inner cavity of the glass fiber reinforced plastic cover. The utility model arranges a plurality of circularly polarized antenna units at equal intervals in the vertical direction, integrates combined feed at the middle position, and seals the whole structure in the glass fiber reinforced plastic cover, so that the antenna system has high gain, and the arrangement interval of the circularly polarized antenna units is one wavelength of signal frequency.

Description

UHF circular polarization integrated omnidirectional transmitting antenna

Technical Field

The utility model relates to the technical field of transmitting antennas, in particular to an integrated UHF circular polarization omnidirectional transmitting antenna.

Background

The transmitting antenna is an important component of wireless communication equipment, at a transmitting end, modulated high-frequency oscillation current (energy) generated by a transmitter is input into the transmitting antenna through a feed device (the feed device can directly transmit current waves or electromagnetic waves according to different frequencies and forms), and the transmitting antenna converts the high-frequency oscillation current or the guided wave (energy) into radio waves, namely free electromagnetic waves (energy), and radiates the radio waves to the surrounding space.

The application of circular polarization antenna in digital television broadcasting system receives people's concern more and more, and current transmitting antenna receives the restriction of structure in the use, and the polarization matching problem of antenna can't be solved mostly, and the while during operation under adverse circumstances receives external environment's influence easily, can't guarantee the unblocked of signal, for solving above-mentioned problem, a UHF circular polarization integration omnidirectional transmitting antenna, urgent need to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an UHF circular polarization integrated omnidirectional transmitting antenna which has the advantages of high signal quality, high matching degree and severe weather resistance, and solves the problems that the conventional transmitting antenna is limited by the structure in the use process, the problem that the polarization matching of the antenna cannot be solved mostly, and meanwhile, when the antenna works in a severe environment, the antenna is easily influenced by the external environment and the smooth signal cannot be ensured.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a UHF circular polarization integration omnidirectional transmitting antenna, includes the installation base, its characterized in that: the top of the mounting base is fixedly connected with a glass fiber reinforced plastic cover, a main antenna mounting bracket is arranged at the top of the mounting base and positioned in the inner cavity of the glass fiber reinforced plastic cover, a plurality of circularly polarized antenna units distributed at equal intervals are arranged on one side of the surface of the main antenna mounting bracket, the main antenna mounting bracket is of a hard coaxial line structure, and the inner cavity is provided with a first inner conductor which is a main feeder line, one side of the main antenna mounting bracket is communicated with an auxiliary antenna mounting bracket, the auxiliary antenna mounting bracket is used as a hard coaxial line structure for feeding, the bottom of the auxiliary antenna mounting bracket penetrates through the outer side of the mounting base and is provided with a feeding interface, a second inner conductor is arranged in the inner cavity of the auxiliary antenna mounting bracket and is connected with the first feeder line, one end of the first connecting feeder is communicated with the feed interface, and the other end of the first connecting feeder is electrically connected with the main feeder.

The circular polarization antenna unit comprises a circular polarization antenna mounting support fixedly connected with a main antenna mounting support, semicircular vibrators are fixedly connected to the two sides of the surface of the circular polarization antenna mounting support, a cavity communicated with the main antenna mounting support is arranged inside the circular polarization antenna mounting support, a second connecting feeder electrically connected with the main feeder is arranged in the cavity of the cavity, a fixed column is communicated with one side of the surface of the circular polarization antenna mounting support, a connecting seat is arranged on one side of the fixed column, a feeding sheet is arranged on one side of the connecting seat, the two sides of the feeding sheet are fixedly connected with the two semicircular vibrators respectively, a third connecting feeder electrically connected with the second feeder is arranged in the cavity of the fixed column, and a fixed seat is arranged on one side of the connecting seat.

Preferably, the surface of the second connecting feeder is fixedly connected with a second polytetrafluoroethylene support, and the second polytetrafluoroethylene support is arranged in the circular polarization antenna mounting bracket.

Preferably, the surfaces of the main feeder line and the first connecting feeder line are fixedly connected with a plurality of polytetrafluoroethylene supports which are distributed at equal intervals, and the polytetrafluoroethylene supports are respectively arranged in the main antenna mounting bracket and the auxiliary antenna mounting bracket.

Preferably, the mounting base is cylindrical, and the top of the mounting base is provided with a groove matched with the glass fiber reinforced plastic cover.

Preferably, the top of the two sides of the inner cavity of the glass fiber reinforced plastic cover is fixedly connected with a fixing support, and the inner wall of the fixing support is fixedly connected with the main antenna mounting support.

Preferably, the plane where the two semicircular vibrators are located is at an angle of 45 degrees.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model arranges a plurality of circularly polarized antenna units at equal intervals in the vertical direction, integrates combined feed at the middle position, and seals the whole structure in the glass fiber reinforced plastic cover, so that the antenna system has high gain, the arrangement interval of the circularly polarized antenna units is one wavelength of signal frequency, the integrated circularly polarized antenna is convenient to be installed on the transmitting towers of various structures, is favorable for good reception of terminal antennas of various postures, has wide application prospect in the field of terrestrial digital televisions and 5G broadcasting of UHF frequency bands, and effectively solves the polarization matching problem of the antenna: the circularly polarized wave can be received by any linearly polarized antenna, and the circularly polarized antenna can also receive the electromagnetic wave radiated by any linearly polarized antenna; the method is applied to the polarization diversity technology, and the communication capacity is improved: the rotation directions of the circularly polarized waves radiated by the circularly polarized antenna are mutually orthogonal, namely, the circularly polarized antenna can only receive the circularly polarized waves with the same rotation direction, so that the signal quality is improved; the severe environment works normally: when circular polarized wave is incidenting on the reflection object, can lead to reflecting the rotation of circular polarized wave to take place to reverse, this kind of characteristic can the effectual multipath influence that reduces the multipath reflection and cause that declines, also can effectively prevent rain and fog interference simultaneously, work under rugged environment, can guarantee the unblocked of signal better, current transmitting antenna has been solved, in the use, receive the restriction of structure, the polarization matching problem of the antenna can't be solved to the great majority, the while is during operation under rugged environment, receive external environment's influence easily, can't guarantee the unblocked problem of signal.

2. The polytetrafluoroethylene support I is arranged to support the main feeder line and the connection feeder line I, and the stability of the main feeder line and the stability of the connection feeder line I in the inner cavities of the main antenna mounting bracket and the auxiliary antenna mounting bracket are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a partial top sectional view of the circular polarized antenna unit structure according to the present invention.

In the figure: 1. installing a base; 2. a glass fiber reinforced plastic cover; 3. a main antenna mounting bracket; 4. a circularly polarized antenna unit; 41. a circular polarized antenna mounting bracket; 42. a semicircular vibrator; 43. a cavity; 44. connecting a second feeder line; 45. fixing a column; 46. a connecting seat; 47. a feeding sheet; 48. connecting a feeder line III; 49. a fixed seat; 410. a polytetrafluoroethylene support II; 5. a main feed line; 6. a secondary antenna mounting bracket; 7. a feed interface; 8. connecting a first feeder line; 9. the polytetrafluoroethylene supports one.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a UHF circular polarization integration omnidirectional transmitting antenna, includes installation base 1, its characterized in that: the top of the mounting base 1 is fixedly connected with a glass fiber reinforced plastic cover 2, the mounting base 1 is cylindrical, the top of the mounting base 1 is provided with a groove matched with the glass fiber reinforced plastic cover 2, the top of the mounting base 1 and the inner cavity of the glass fiber reinforced plastic cover 2 are provided with a main antenna mounting bracket 3, the tops of two sides of the inner cavity of the glass fiber reinforced plastic cover 2 are fixedly connected with fixing brackets, the inner wall of each fixing bracket is fixedly connected with the main antenna mounting bracket 3, one side of the surface of the main antenna mounting bracket 3 is provided with a plurality of circularly polarized antenna units 4 which are distributed at equal intervals, the main antenna mounting bracket 3 is of a hard coaxial structure, the inner cavity is provided with a first inner conductor, the first inner conductor is a main feeder 5, one side of the main antenna mounting bracket 3 is communicated with an auxiliary antenna mounting bracket 6, the auxiliary antenna mounting bracket 6 is of the hard coaxial structure for feeding, the bottom of the auxiliary antenna mounting bracket 6 penetrates to the outer side of the mounting base 1 and is provided with a feed interface 7, and a second inner conductor is arranged in the inner cavity of the auxiliary antenna mounting bracket 6, the second inner conductor is a first connecting feeder line 8, one end of the first connecting feeder line 8 is communicated with the feed interface 7, and the other end of the first connecting feeder line 8 is electrically connected with the main feeder line 5.

The circular polarization antenna unit 4 comprises a circular polarization antenna mounting bracket 41 fixedly connected with a main antenna mounting bracket 3, semicircular vibrators 42 are fixedly connected to two sides of the surface of the circular polarization antenna mounting bracket 41, the plane where the two semicircular vibrators 42 are located is at an angle of 45 degrees, a cavity 43 communicated with the main antenna mounting bracket 3 is arranged inside the circular polarization antenna mounting bracket 41, a second connecting feeder 44 electrically connected with a main feeder 5 is arranged in the cavity of the cavity 43, a fixed column 45 is communicated with one side of the surface of the circular polarization antenna mounting bracket 41, a connecting seat 46 is arranged on one side of the fixed column 45, a feeder sheet 47 is arranged on one side of the connecting seat 46, two sides of the feeder sheet 47 are fixedly connected with the two semicircular vibrators 42 respectively, a third connecting feeder 48 electrically connected with the second feeder 44 is arranged in the cavity of the fixed column 45, and a fixed seat 49 is arranged on one side of the connecting seat 46.

In the utility model: the polytetrafluoroethylene support II 410 is fixedly connected to the surface of the connecting feeder II 44, the polytetrafluoroethylene support II 410 is arranged in the circular polarization antenna mounting bracket 41, the polytetrafluoroethylene support II 410 is arranged, the effect of fixing the connecting feeder II 44 is achieved, and the stability of the connecting feeder II 44 is improved.

In the utility model: the polytetrafluoroethylene that the equal interval of a plurality of distributions of surface of main feeder 5 and connection feeder 8 supports one 9, and polytetrafluoroethylene supports one 9 and arranges main antenna installing support 3 and vice antenna installing support 6 in respectively, supports the setting of one 9 through polytetrafluoroethylene, has played the effect of supporting main feeder 5 and connection feeder 8, has improved the stability that main feeder 5 and connection feeder 8 lie in main antenna installing support 3 and vice antenna installing support 6 inner chambers respectively.

The working principle is as follows: when the antenna is used, a user installs the antenna on various transmitting towers with various structures, arranges a plurality of circularly polarized antenna units 4 at equal intervals in the vertical direction, and is connected with the main antenna mounting bracket 3 and the auxiliary antenna mounting bracket 6 at the middle positions, the main feeder 5 and the connecting feeder 8 in the inner cavities of the main antenna mounting bracket 3 and the auxiliary antenna mounting bracket 6 are electrically connected, one end of the connecting feeder 8 is electrically connected with the feed interface 7, and the whole structure is sealed in the glass steel cover 2.

In summary, the following steps: this UHF circular polarization integration omnidirectional transmitting antenna, arrange at the equidistance through a plurality of circular polarization antenna unit 4 in the vertical direction, and it is integrated to jointly feed at the intermediate position, whole structure seals in glass steel cover 2, make the antenna system have high gain, circular polarization antenna unit 4 arranges the interval and is a wavelength of signal frequency, this kind of integration circular polarization antenna, be convenient for install on the launching tower of various structures, and do benefit to the good receipt of the terminal antenna of various gestures, terrestrial digital TV and the 5G broadcasting field at the UHF frequency channel have extensive application prospect, the polarization matching problem of antenna has effectively been solved: the circularly polarized wave can be received by any linearly polarized antenna, and the circularly polarized antenna can also receive the electromagnetic wave radiated by any linearly polarized antenna; the method is applied to the polarization diversity technology, and the communication capacity is improved: the rotation directions of the circularly polarized waves radiated by the circularly polarized antenna are mutually orthogonal, namely, the circularly polarized antenna can only receive the circularly polarized waves with the same rotation direction, so that the signal quality is improved; the severe environment works normally: when circular polarized wave is incidenting on the reflection object, can lead to reflecting the rotation of circular polarized wave to take place to reverse, this kind of characteristic can the effectual multipath influence that reduces the multipath reflection and cause that declines, also can effectively prevent rain and fog interference simultaneously, work under rugged environment, can guarantee the unblocked of signal better, current transmitting antenna has been solved, in the use, receive the restriction of structure, the polarization matching problem of the antenna can't be solved to the great majority, the while is during operation under rugged environment, receive external environment's influence easily, can't guarantee the unblocked problem of signal.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a UHF circular polarization integration omnidirectional transmitting antenna, includes installation base (1), its characterized in that: the glass fiber reinforced plastic cover (2) is fixedly connected to the top of the mounting base (1), a main antenna mounting support (3) is arranged at the top of the mounting base (1) and located in an inner cavity of the glass fiber reinforced plastic cover (2), a plurality of circularly polarized antenna units (4) distributed at equal intervals are arranged on one side of the surface of the main antenna mounting support (3), the main antenna mounting support (3) is of a hard coaxial line structure, a first inner conductor is arranged in the inner cavity and is a main feeder (5), an auxiliary antenna mounting support (6) is communicated with one side of the main antenna mounting support (3), the auxiliary antenna mounting support (6) is of the hard coaxial line structure for feeding, the bottom of the auxiliary antenna mounting support (6) penetrates through the outer side of the mounting base (1) and is provided with a feeding interface (7), and a second inner conductor is arranged in the inner cavity of the auxiliary antenna mounting support (6), the second inner conductor is a first connecting feeder (8), one end of the first connecting feeder (8) is communicated with the feed interface (7), and the other end of the first connecting feeder (8) is electrically connected with the main feeder (5);

the circularly polarized antenna unit (4) comprises a circularly polarized antenna mounting support (41) fixedly connected with a main antenna mounting support (3), semicircular vibrators (42) are fixedly connected to two sides of the surface of the circularly polarized antenna mounting support (41), a cavity (43) communicated with the main antenna mounting support (3) is arranged inside the circularly polarized antenna mounting support (41), a connecting feeder II (44) electrically connected with a main feeder (5) is arranged in an inner cavity of the cavity (43), a fixing column (45) is communicated to one side of the surface of the circularly polarized antenna mounting support (41), a connecting seat (46) is arranged on one side of the fixing column (45), a feeder piece (47) is arranged on one side of the connecting seat (46), two sides of the feeder piece (47) are respectively and fixedly connected with the two semicircular vibrators (42), a connecting feeder III (48) electrically connected with the feeder II (44) is arranged in an inner cavity of the fixing column (45), one side of the connecting seat (46) is provided with a fixed seat (49).

2. The integrated UHF circularly polarized omnidirectional transmitting antenna of claim 1, wherein the integrated UHF circularly polarized omnidirectional transmitting antenna comprises: and the surface of the second connecting feeder (44) is fixedly connected with a first polytetrafluoroethylene support (410), and the first polytetrafluoroethylene support (410) is arranged in the circularly polarized antenna mounting bracket (41).

3. The integrated UHF circularly polarized omnidirectional transmitting antenna of claim 1, wherein the integrated UHF circularly polarized omnidirectional transmitting antenna comprises: the surface of the main feeder line (5) and the surface of the connecting feeder line I (8) are fixedly connected with a plurality of polytetrafluoroethylene supports II (9) which are distributed at equal intervals, and the polytetrafluoroethylene supports II (9) are respectively arranged in the main antenna mounting bracket (3) and the auxiliary antenna mounting bracket (6).

4. The integrated UHF circularly polarized omnidirectional transmitting antenna of claim 1, wherein the integrated UHF circularly polarized omnidirectional transmitting antenna comprises: the mounting base (1) is cylindrical, and the top of the mounting base (1) is provided with a groove matched with the glass fiber reinforced plastic cover (2).

5. The integrated UHF circularly polarized omnidirectional transmitting antenna of claim 1, wherein the integrated UHF circularly polarized omnidirectional transmitting antenna comprises: the top fixedly connected with fixed bolster of glass steel cover (2) inner chamber both sides, the inner wall and the main antenna installing support (3) fixed connection of fixed bolster.

6. The integrated UHF circularly polarized omnidirectional transmitting antenna of claim 1, wherein the integrated UHF circularly polarized omnidirectional transmitting antenna comprises: the plane where the two semicircular vibrators (42) are located forms an angle of 45 degrees.