CN111403904A - Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array - Google Patents
Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array Download PDFInfo
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- CN111403904A CN111403904A CN202010319010.7A CN202010319010A CN111403904A CN 111403904 A CN111403904 A CN 111403904A CN 202010319010 A CN202010319010 A CN 202010319010A CN 111403904 A CN111403904 A CN 111403904A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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Abstract
The invention provides a multi-channel television signal-frequency modulation signal shared antenna unit, which comprises a radiation component and at least one group of radiation components, wherein the radiation component comprises a first oscillator piece and a second oscillator piece which are arranged along different directions, and one end of the first oscillator piece is connected with one end of the second oscillator piece; and the feed part comprises a feed support connected with the radiation assembly, a feed circuit is arranged in the feed support, and the feed circuit transmits an electric signal to the radiation assembly. The radiating part of the invention widens the impedance bandwidth of the antenna by arranging the oscillator pieces in two directions, so that the antenna can be compatible with television signals of 4 channels or 3 channels and FM (frequency modulation) broadcast signals, thereby realizing the function of simultaneously transmitting the television signals and the FM signals of the same pair of antennas.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a multi-channel television signal-frequency modulation signal shared antenna unit and an antenna array.
Background
At present, most broadcasting and television iron towers do not have installation positions for 4CH antennas, the frequency ranges of a television 4-channel antenna and a frequency modulation antenna are respectively close to 76-84 MHz and 87-108 MHz, the total frequency ranges are 32MHz, the impedance bandwidth of the current antenna cannot reach 32MHz, and the fact that the television 4-channel antenna and the frequency modulation antenna share one antenna cannot be achieved. At present, the traditional 4CH and FM double-dipole antenna is realized by adopting two cylindrical half-wave oscillators with half-wavelength interval to jointly feed through a power divider and placing the oscillators above a reflecting net at about a quarter of wavelength, and the antenna has limited impedance bandwidth and is only suitable for respective channels.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the signal frequency band adaptable to a small impedance bandwidth of a signal transmitting antenna is narrow, so as to provide an antenna unit and an antenna array capable of simultaneously transmitting multi-channel television signals and frequency modulation signals.
In order to solve the technical problems, the invention provides the following technical scheme: a multi-channel TV signal-FM signal shared antenna unit includes,
the radiating component comprises at least one group of radiating components, the radiating components comprise a first oscillator piece and a second oscillator piece which are arranged along different directions, and one ends of the first oscillator piece and the second oscillator piece are connected;
and the feed component comprises a feed support connected with the radiation assembly, a feed circuit is arranged in the feed support, and the feed circuit transmits an electric signal to the radiation assembly.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the first oscillator piece and the second oscillator piece are connected with the feed support, and a triangular radiation area is formed by the first oscillator piece, the second oscillator piece and the feed support in a surrounding mode.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the first oscillator piece is perpendicularly connected with the feed support, and two ends of the second oscillator piece are connected to the first oscillator piece and the feed support.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the first oscillator element comprises two first oscillator arms, and the second oscillator element comprises a pair of second oscillator arms; the two first oscillator arms are connected in a sealing mode through a polytetrafluoroethylene insulating sealing element, and the two second oscillator arms are connected between each first oscillator arm and the feed support respectively.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the first vibrator arm is a cylindrical hollow pipe, and the second vibrator piece can be a square column or a cylindrical hollow pipe or a metal strip.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: one end of the feed support is an output end and is connected to the middle of the first oscillator piece, and the other end of the feed support is connected with an electric signal source.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the feed support is a square hard coaxial line, a square pipe of the feed support is an outer conductor, an inner conductor is arranged in the outer conductor, and the inner conductor is fixed in the outer conductor by utilizing a polytetrafluoroethylene insulation support; the outer conductor is fixedly connected with the shell of the first oscillator piece, and the inner conductor extends out of the output end and then enters the inside of the first oscillator piece to form an open-circuit compensation capacitor for impedance matching.
As a preferable mode of the antenna unit shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the radiating component comprises two groups of radiating assemblies which are symmetrically arranged, each group of radiating assemblies is connected with a feed support, one ends of the two feed supports are connected together in an intersecting manner to form a power dividing point of the feed circuit, and a feed interface is arranged at the power dividing point.
The invention also provides a multi-channel television signal-frequency modulation signal shared antenna array, which comprises a plurality of antenna units, wherein the antenna array is provided with a plurality of layers, each layer of antenna array comprises four antenna units, the four antenna units are distributed in a horizontal plane around a central point at an angle of 90 degrees, and the directions of electromagnetic field vectors of radiation electromagnetic waves of the adjacent antenna units are vertical.
As a preferred mode of the antenna array shared by the multichannel television signal and the fm signal provided by the present invention, wherein: the arrangement direction of the first oscillator piece in the antenna unit forms a positive 45-degree or negative 45-degree included angle with the ground.
The invention has the beneficial effects that: the multi-channel television signal-frequency modulation signal antenna unit provided by the invention adopts the oscillator parts arranged in multiple directions to form the polygonal radiation assembly, the impedance bandwidth of the antenna can be obviously widened, so that the 4CH television is compatible with FM (frequency modulation) broadcasting, and the television 4-channel transmitting antenna and the frequency modulation antenna are combined into a whole to be changed into a set of broadband antenna. The antenna array provided by the invention adopts the antenna unit array which is arranged by the positive and negative 45-degree oblique polarization, so that the overlapping area of the electromagnetic field vectors of the electromagnetic waves radiated by the adjacent units on the horizontal plane is orthogonal, the problem that the field shape deteriorates and the coverage effect is poor due to space phase difference when the electromagnetic field vectors are overlapped is avoided, and all the uniformity of the field shape of the radiated electromagnetic waves is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic structural diagram of a hybrid polarization antenna unit;
fig. 2 is a schematic diagram of the connection of the radiating element and the feed support;
FIG. 3 is an exploded view of the radiation module;
FIG. 4 is a schematic structural diagram of a feeding part of the antenna unit;
fig. 5 is a layout diagram of an antenna element feed circuit;
fig. 6 is a horizontal layout view and a vertical layout view of the antenna array;
fig. 7 is a perspective field pattern diagram of a four-layer antenna array;
fig. 8 is a horizontal field pattern of an antenna array;
fig. 9 is a vertical directivity diagram of a four-layer antenna array.
FIG. 10 is a diagram of the impedance of the antenna element shared by the multi-channel TV signal and the FM signal provided by the present invention;
fig. 11 is a diagram showing impedance of a conventional thin cylindrical element antenna.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
The present embodiment provides a multi-channel tv signal-fm signal shared antenna unit, which has a structure as shown in fig. 1, and includes a radiation component 200, a feeding component 300, and a reflection component 100, where the radiation component 200 and the feeding component 300 are both disposed on a reflection net 120 of the reflection component 100. The radiation member 200 includes a radiation member 210 for emitting an electromagnetic wave. Wherein the radiation member 200 includes a first vibrator element 211 and a second vibrator element 212 arranged in different directions, and one ends of the first and second vibrator elements 211 and 212 are connected. Feeding section 300 includes a feeding support 310 connected to radiating element 210, and a feeding circuit 320 is disposed in feeding support 310, and feeding circuit 320 transmits an electrical signal to radiating element 210. The radiation member 210 converts the received electric signal into an electromagnetic wave to radiate outward.
Example 2
The present embodiment provides a multi-channel television signal-fm signal shared antenna unit, which includes a radiation component 200, a feeding component 300, and a reflection component 100, wherein the radiation component 200 and the feeding component 300 are both disposed on the reflection net 120 of the reflection component 100. The radiation member 200 includes a radiation member 210 for emitting an electromagnetic wave. Wherein the radiation member 200 includes a first vibrator element 211 and a second vibrator element 212 arranged in different directions, and one ends of the first and second vibrator elements 211 and 212 are connected. Feeding section 300 includes a feeding support 310 connected to radiating element 210, and a feeding circuit 320 is disposed in feeding support 310, and feeding circuit 320 transmits an electrical signal to radiating element 210. The radiation component 210 converts the received electrical signal into an electromagnetic wave and emits the electromagnetic wave.
As shown in fig. 1 and fig. 2, the first oscillator element 211 and the second oscillator element 212 in this embodiment are both connected to the feeding support 310, and they surround to form a triangular radiation area, wherein the first oscillator element 211 is vertically connected to the feeding support 310, and two ends of the second oscillator element 212 are respectively and fixedly connected to the first oscillator element 211 and the feeding support 310. As shown in fig. 1, the feeding support 310 is disposed obliquely to the reflection surface of the reflection net 120, so that the first oscillator element 211, the second oscillator element 212 and the feeding support 310 surround to form a triangle, which changes the current distribution of the original thin and straight oscillator, improves the frequency response thereof, and increases the impedance bandwidth of the antenna. And the second dipole member 212 serves as a diagonal brace between the feeding holder 310 and the first dipole member 211, and also has a function of reinforcing the antenna structure. The antenna can be suitable for being used in the environment seriously wrapped by ice.
As shown in fig. 3, the first oscillator member 211 in this embodiment includes two first oscillator arms 211a, and the two first oscillator arms 211a are hermetically connected to each other by a teflon insulating seal (211 b). The total length of the first vibrator member 211 is approximately equal to a half wavelength of the center frequency. Meanwhile, the second dipole element 212 comprises a pair of second dipole arms 212a, and the two second dipole arms 212a are symmetrically arranged and respectively connected between each first dipole arm 211a and the feeding support 310, so that stable triangular structures can be formed between the two first dipole arms 211a and the feeding support 310, the impedance bandwidth of the antenna is increased, and the strength of the antenna is also increased. As shown in fig. 3, the first vibrator arm 211a in this embodiment is a cylindrical hollow tube, the second vibrator element 212 may be a square or cylindrical hollow tube, or may be a metal strip, and both the vibrator element and the reflective mesh 120 are made of 304 stainless steel (with a wall thickness of 2 mm). When the polytetrafluoroethylene insulating sealing element 211b is installed, a vulcanized sealing ring is placed in the oscillator arm connector, waterproof thread glue is injected into the polytetrafluoroethylene insulating sealing element 211b, a waterproof outdoor self-adhesive butyl tape is wrapped outside, and finally a heat-shrinkable sleeve with glue is used for heat shrinkage.
As shown in fig. 1 and 4, the feeding support 310 in this embodiment has an output end 321 at one end and is connected to the middle of the first oscillator element 211, and the other end is connected to an electrical signal source. The feeding support 310 is disposed obliquely to the reflective surface of the reflective mesh 120, which may be at an angle of 45 degrees, 60 degrees, etc., which makes the distance of the radiating element 210 from the reflective mesh 120 about a quarter wavelength.
As shown in fig. 1 and 4, the radiating element 200 in this embodiment includes two sets of radiating elements 210 symmetrically disposed, each set of radiating element 210 is connected to a feeding support 310, one end of each feeding support 310 is connected to a V-shaped feeding circuit 320, a power dividing point 322 of the feeding circuit 320 is formed at the joint, and a feeding interface 323 is disposed at the power dividing point 322. The distance between the two sets of radiation elements 210 is about half a wavelength, and the first oscillator element 211 is oriented parallel to the reflective surface of the reflective mesh 120.
As shown in fig. 5, the feeding support 310 in this embodiment is a square hard coaxial line, and since the two first dipole arms 211a of the first dipole element 211 are symmetrically disposed, each feeding support 310 includes two parallel square tubes, one of the square tubes is a square hard coaxial line and is connected to an electrical signal source, and the other square tube is an auxiliary support, so as to maintain the stability of the radiation component 210. The square tube of the square hard coaxial line is an outer conductor 311, an inner conductor 312 is arranged inside the outer conductor 311, and the inner conductor 312 is fixed inside the outer conductor 311 by a polytetrafluoroethylene insulation support 313. The outer conductor 311 is fixedly connected to the housing of the first oscillator element 211, and the inner conductor 312 extends from the output end 321 and enters the first oscillator element 211 to form an open-circuit compensation capacitor. In order to adapt to the external environment with dew condensation and ice, the outer conductor 311 in this embodiment is made of stainless steel, the inner conductor 312 is made of copper-plated silver, and the reflective member 100 is made of stainless steel or a3 steel by hot dip galvanizing. The feeding unit 300 and the radiation unit 200 are connected by welding, and the feeding unit 300 and the reflection unit 100 are fixedly connected by a mounting bracket.
The square hard coaxial line is used as the feed support 310, the feed circuit 320 and the support structure of the radiation component 210 can be conveniently integrated, the requirement of stable antenna mounting structure is met, and the hard coaxial line has the characteristic of low standing-wave ratio under the high-power work, so that the hard coaxial line can be competent for the high-power transmission work of television signals and frequency modulation signals.
Example 3
As shown in fig. 6, the antenna array has a plurality of layers, each layer of the antenna array includes four antenna elements, the four antenna elements are distributed in a horizontal plane around a central point at an angle of 90 degrees, and the directions of electromagnetic field vectors of radiated electromagnetic waves of adjacent antenna elements are perpendicular.
Specifically, the antenna array in this embodiment has 4 layers, each layer has 4 antenna units, each antenna unit is fixed on four sides of the tower mast 400 by using the mounting member 111 shown in fig. 1, and the arrangement direction of the first dipole member 211 in the radiation assembly 210 forms an angle of positive 45 degrees or negative 45 degrees with the ground, so as to form an alternate oblique arrangement in which adjacent antenna units are respectively arranged at positive 45 degrees and negative 45 degrees as shown in fig. 6. The antenna elements in the four directions are alternately arranged, so that the vectors of electromagnetic waves radiated by adjacent elements are orthogonal in a horizontal plane, and finally, a three-dimensional field shape as shown in fig. 7 is formed.
As can be seen from fig. 7, the electromagnetic wave field shape is distributed relatively uniformly in space, while referring to the horizontal directional diagram of fig. 8, it can be seen that the field shape is uniform without large depressions in some directions. As can be seen from the vertical directional diagram in fig. 9, the electromagnetic wave field pattern is also ideally distributed in the vertical space, and no signal blank area in a large range occurs.
Example 4
In this embodiment, the impedance test is performed on the multi-channel tv signal-fm signal shared antenna unit in embodiment 2 under the same conditions as compared with the conventional cylindrical element antenna, so as to obtain the impedance circular diagrams shown in fig. 10 and 11. Comparing fig. 10 and fig. 11, it is obvious that the impedance of the conventional thin cylindrical element antenna is relatively divergent, while the impedance of the triangular element in this embodiment is relatively convergent, so that the antenna unit in this embodiment has a relatively large impedance bandwidth, and can make 4-channel or 3-channel tv compatible with FM broadcast.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A multiple channel television signal-fm signal shared antenna element, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a radiation member (200) including at least one set of radiation elements (210), the radiation elements (210) including a first oscillator element (211) and a second oscillator element (212) arranged in different directions, and the first oscillator element (211) and the second oscillator element (212) being connected at one end;
the feed part (300) comprises a feed support (310) connected with the radiation assembly (210), a feed circuit (320) is arranged in the feed support (310), and the feed circuit (320) transmits an electric signal to the radiation assembly (210).
2. The multiple channel television signal-frequency modulated signal shared antenna element of claim 1, wherein: the first oscillator piece (211) and the second oscillator piece (212) are connected with the feed support (310) and form a triangular radiation area in a surrounding mode.
3. The multiple channel television signal-frequency modulated signal shared antenna element of claim 2, wherein: the first oscillator piece (211) is vertically connected with the feeding support (310), and two ends of the second oscillator piece (212) are connected with the first oscillator piece (211) and the feeding support (310).
4. The multiple channel television signal-frequency modulated signal shared antenna element of claim 3, wherein: the first vibrator element (211) includes two first vibrator arms (211a), and the second vibrator element (212) includes a pair of second vibrator arms (212 a); the two first oscillator arms (211a) are connected in a sealing mode through insulating sealing pieces (211b), and the two second oscillator arms (212a) are respectively connected between each first oscillator arm (211a) and the feeding support (310).
5. The multiple channel television signal-frequency modulated signal shared antenna element of claim 4, wherein: the first vibrator arm (211a) is a cylindrical hollow pipe, and the second vibrator piece (212) is a square column-shaped or cylindrical hollow pipe or a metal strip.
6. The multiple channel television signal-fm signal shared antenna element of any of claims 1-5, wherein: one end of the feed support (310) is an output end (321) and is connected to the middle of the first oscillator piece (211), and the other end of the feed support is connected with an electric signal source.
7. The multiple channel television signal-frequency modulated signal shared antenna element of claim 6, wherein: the feeding support (310) is a square hard coaxial line, a square tube of the feeding support is an outer conductor (311), an inner conductor (312) is arranged inside the outer conductor (311), and the inner conductor (312) is fixed inside the outer conductor (311) through an insulating support (313); the outer conductor (311) is fixedly connected with the shell of the first oscillator piece (211), and the inner conductor (312) extends out of the output end (321) and then enters the first oscillator piece (211) to form an open-circuit compensation capacitor.
8. The multiple channel television signal-fm signal shared antenna element of any of claims 1-5 or 7, wherein: the radiating component (200) comprises two groups of radiating assemblies (210) which are symmetrically arranged, each group of radiating assemblies (210) is connected with a feed support (310), one ends of the two feed supports (310) are crossed and connected together to form a power dividing point (322) of the feed circuit (320), and a feed interface (323) is arranged at the power dividing point (322).
9. A multiple channel television signal-fm signal shared antenna array comprising a plurality of antenna elements as claimed in any of claims 1 to 8, the antenna array having a plurality of layers, each layer of the antenna array comprising four of said antenna elements, said four antenna elements being distributed in a horizontal plane at 90 degrees to each other around a central point, and the directions of electromagnetic field vectors of radiated electromagnetic waves of adjacent said antenna elements being perpendicular.
10. The multi-channel television signal-fm signal common antenna array of claim 9, wherein: the arrangement direction of the first oscillator piece (211) in the antenna unit forms a positive 45-degree or negative 45-degree included angle with the ground.
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| CN202010319010.7A CN111403904A (en) | 2020-04-21 | 2020-04-21 | Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array |
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| CN202010319010.7A CN111403904A (en) | 2020-04-21 | 2020-04-21 | Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024133A (en) * | 2022-01-05 | 2022-02-08 | 中国人民解放军海军工程大学 | Novel dipole antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070254587A1 (en) * | 2006-04-14 | 2007-11-01 | Spx Corporation | Antenna system and method to transmit cross-polarized signals from a common radiator with low mutual coupling |
| CN101425627A (en) * | 2007-11-01 | 2009-05-06 | 顾志忠 | Dual frequency dual polarization broadcast television emission antenna |
| CN107482309A (en) * | 2017-08-04 | 2017-12-15 | 江苏宁光通信设备有限公司 | A kind of double V-shaped side hanging frequency modulation broadcasting circular polarized antenna |
| CN110247155A (en) * | 2019-06-19 | 2019-09-17 | 江苏宁光通信设备有限公司 | A kind of circular polarisation radio and television multimedia transmitting antenna |
| CN212162072U (en) * | 2020-04-21 | 2020-12-15 | 卞国荣 | Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array |
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2020
- 2020-04-21 CN CN202010319010.7A patent/CN111403904A/en active Pending
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|---|---|---|---|---|
| US20070254587A1 (en) * | 2006-04-14 | 2007-11-01 | Spx Corporation | Antenna system and method to transmit cross-polarized signals from a common radiator with low mutual coupling |
| CN101425627A (en) * | 2007-11-01 | 2009-05-06 | 顾志忠 | Dual frequency dual polarization broadcast television emission antenna |
| CN107482309A (en) * | 2017-08-04 | 2017-12-15 | 江苏宁光通信设备有限公司 | A kind of double V-shaped side hanging frequency modulation broadcasting circular polarized antenna |
| CN110247155A (en) * | 2019-06-19 | 2019-09-17 | 江苏宁光通信设备有限公司 | A kind of circular polarisation radio and television multimedia transmitting antenna |
| CN212162072U (en) * | 2020-04-21 | 2020-12-15 | 卞国荣 | Multi-channel television signal-frequency modulation signal shared antenna unit and antenna array |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114024133A (en) * | 2022-01-05 | 2022-02-08 | 中国人民解放军海军工程大学 | Novel dipole antenna |
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