CN114256627A - Ultra-wideband antenna - Google Patents
Ultra-wideband antenna Download PDFInfo
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- CN114256627A CN114256627A CN202111577848.7A CN202111577848A CN114256627A CN 114256627 A CN114256627 A CN 114256627A CN 202111577848 A CN202111577848 A CN 202111577848A CN 114256627 A CN114256627 A CN 114256627A
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- 238000001914 filtration Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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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
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The invention discloses an ultra-wideband antenna, wherein a first pair of conical dipoles is arranged at the top of the antenna, and a second pair of conical dipoles is arranged at the bottom of the antenna; the first feed cable is used for feeding the first pair of conical dipoles and connecting the first pair of conical dipoles to the combiner, the second feed cable is used for feeding the second pair of conical dipoles and connecting the second pair of conical dipoles to the combiner, and the third feed cable is used for connecting the combiner and the joint; the combiner is used for combining a first signal sent by the first pair of conical dipoles through the first feed cable and a second signal sent by the second pair of conical dipoles through the second feed cable, and then transmitting the obtained comprehensive signal to the joint through the third feed cable. The mode combines the idea of frequency division combining design through the segmented antenna, and divides the antenna into a plurality of groups to combine the conical dipole antenna into one port through the combiner, thereby meeting the requirements of ultra-wide working frequency band matching and gain on one antenna.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to an ultra-wideband antenna.
Background
In some large-scale examination scenes, monitoring antennas are often arranged, and transmission of most wireless communication signals can be monitored through the monitoring antennas. Based on the mode, the phenomenon that the examinees cheat in a wireless communication mode can be greatly reduced, and the fairness of the examination are guaranteed.
Currently used monitoring antennas often adopt a structure in which a plurality of antennas work together, wherein different antennas cover different frequency bands, and each antenna can only monitor communication signals in the corresponding frequency band. Therefore, the current monitoring antenna requires more antennas; correspondingly, the number of background processing devices corresponding to different antennas is also large. For example, a pair of conventional dipole antennas or a sleeve monopole antenna or other antennas cannot cover three frequency ranges of short waves, ultrashort waves and microwaves on one antenna, and if the ultra-wideband effect is to be achieved, at least three antennas are needed, and the current architecture in which a plurality of antennas work together is prone to the problem of frequency range overlapping interference or frequency range coverage failure, so that the monitoring effect is obviously lowered.
In summary, there is a need for an ultra-wideband antenna for monitoring electromagnetic signals in a wider frequency band on one antenna.
Disclosure of Invention
The application provides an ultra wide band antenna for realize covering the electromagnetic wave signal of three frequency channel ranges of shortwave, ultrashort wave and microwave through an antenna monitoring.
In a first aspect, an embodiment of the present application provides an ultra-wideband antenna, including: the first pair of conical dipoles, the second pair of conical dipoles, the combiner, the first feed cable, the second feed cable, the third feed cable and the joint; wherein a minimum value in a first frequency band in which the first pair of tapered dipoles operate is higher than a maximum value in a second frequency band in which the second pair of tapered dipoles operate; the first tapered dipole is arranged at the top of the antenna, the second tapered dipole is arranged at the bottom of the antenna, and the combiner is arranged between the first tapered dipole and the second tapered dipole; the first feed cable is used for feeding the first pair of conical dipoles and connecting to the combiner, the second feed cable is used for feeding the second pair of conical dipoles and connecting to the combiner, and the third feed cable is used for connecting the combiner and the joint; the combiner is configured to combine a first signal sent by the first tapered dipole through the first feed cable and a second signal sent by the second tapered dipole through the second feed cable, and then transmit an obtained combined signal to the joint through the third feed cable; the connector is used for sending the comprehensive signal to background processing equipment.
In the above scheme, two pairs of paired conical dipoles are designed to be respectively used for acquiring electromagnetic wave signals, and the acquired electromagnetic wave signals are respectively transmitted to the combiner through respective feed cables, and the combiner can be used for filtering out the electromagnetic wave signals of the frequency bands in which the two pairs of paired conical dipoles respectively work, so that the combiner can transmit the filtered electromagnetic wave signals meeting the requirement of the working frequency band to the background processing device. In the mode, the idea of combining the segmented antenna with the frequency division combining is adopted, the antenna is divided into a plurality of groups, and the groups are combined into one port through the combiner, so that the requirements of ultra-wide working frequency band matching and gain on one antenna are met.
In one possible implementation, the antenna further includes a third pair of tapered dipoles and a fourth feeder cable; a third frequency band in which the third pair of conical dipoles work is from the maximum value in the second frequency band to the minimum value in the first frequency band; the third pair of tapered dipoles is arranged between the first pair of tapered dipoles and the combiner; the fourth feed cable is used for feeding the third pair of conical dipoles and is connected to the combiner.
In the above scheme, because the frequency bands in which the first pair of conical dipoles and the second pair of conical dipoles respectively operate do not intersect, in order to monitor the electromagnetic wave signals in the wider frequency band in this application, a third pair of conical dipoles and a fourth feed cable may be designed, where the designed working frequency band of the third pair of conical dipoles is just the maximum value in the second frequency band to the minimum value in the first frequency band, and the designed fourth feed cable is used to send the electromagnetic wave signals received by the third pair of conical dipoles to the combiner, so that the electromagnetic wave signals in the working frequency band of the third pair of conical dipoles are filtered by the combiner and are sent to the background processing device. The method realizes the requirements of ultra-wide working frequency band matching and gain on one antenna.
In one possible implementation, the antenna further includes a first tapered dipole fixture and a second tapered dipole fixture; the first tapered dipole fixing piece and the second tapered dipole fixing piece are used for fixing the first tapered dipole and the second tapered dipole respectively.
In the above-mentioned scheme, through the design counterpoint dipole mounting, this counterpoint dipole mounting can be used to fixed counterpoint dipole, consequently at the in-process of ultra wide band antenna equipment, can use first counterpoint dipole mounting and second counterpoint dipole mounting to fix first counterpoint dipole and second counterpoint dipole respectively, so can make first counterpoint dipole and second counterpoint dipole respectively and the antenna house between the combination stability increase, the difficult problem that takes place to the counterpoint dipole drops from the antenna house has guaranteed ultra wide band antenna's usability.
In one possible implementation, the antenna further comprises a first support and a second support; the first support piece is used for connecting the first pair of conical dipoles and the combiner and is used for winding the first feed cable; the second support is used for connecting the second dipole-dipole pair and the combiner and is used for winding the second feed cable.
In the above solution, by designing the supporting element, the supporting element can be used to connect two separate structures on one hand, and can also be used to wind the feed cable on the other hand, so that during the process of assembling the ultra-wideband antenna, if the first supporting element can be used to connect the first pair of tapered dipoles and the combiner, and to wind the first feed cable, the spatial coupling between the two structures of the first pair of tapered dipoles and the combiner is achieved, and at the same time, the electromagnetic wave signal received by the first pair of tapered dipoles is transmitted to the combiner through the first feed cable wound on the first supporting element, that is, the connection between the two structures of the first pair of tapered dipoles and the combiner is achieved; the second supporting member is similar to the first supporting member, so the effect is not analyzed.
In one possible implementation, the antenna further comprises a connector mounting base support and a connector mounting base; the joint mounting base support is used for connecting the second dipole-dipole and the joint mounting base; the joint mounting base is used for arranging the joint.
In the above scheme, by designing the joint mounting base support and the joint mounting base, the ultra-wideband antenna can be assembled in the process of using the joint mounting base support to connect the second tapered dipole with the joint mounting base, and setting the joint in the joint mounting base, so that on one hand, the spatial coupling of the two structures of the second tapered dipole and the joint is realized, and on the other hand, the transmission of a comprehensive signal in the third feed cable from the combiner to the joint through the joint mounting base support is also realized, that is, the connection of the two structures of the second tapered dipole and the joint on a circuit is also realized.
In one possible implementation, the antenna further includes a hoop; the hoop is used for connecting the connector mounting base and an object to be mounted.
In the above scheme, through designing the staple bolt, the staple bolt is designed in the antenna bottom, so when installing the antenna on treating the installation object, will be connected the joint installation base of antenna with treating the installation object through the staple bolt to the effect of installing the antenna on treating the installation object has been realized firmly.
In one possible implementation, the combiner is an LC combiner or an active combiner.
In the above scheme, the ultra-wideband antenna can adopt an LC combiner or an active combiner, and the combiners in the two forms can effectively filter the electromagnetic wave signals received by the conical dipoles, so as to screen out the electromagnetic wave signals in the effective frequency band.
In one possible implementation, the LC combiner includes: a first port for connection with the first feeder cable; the first filter is used for filtering the signal to obtain a signal of a first frequency band; one end of the first filter is connected with the first port, and the other end of the first filter is connected with the third port; a second port for connection with the second feeder cable; the second filter is used for filtering the signal to obtain a signal of a second frequency band; one end of the second filter is connected with the second port, and the other end of the second filter is connected with a third filter; the third port is used for being connected with the third feeder cable; the third filter is used for filtering the signal to obtain a signal which accords with a second frequency band and a third frequency band; a fourth port for connection with the fourth feeder cable; the fourth filter is used for filtering the signal to obtain a signal of a third frequency band; one end of the fourth filter is connected with the fourth port, and the other end of the fourth filter is connected with the third filter.
In the above scheme, how the LC combiner filters the electromagnetic wave signals received by each pair of conical dipoles to screen out the electromagnetic wave signals of the effective frequency band when the combiner is an LC combiner is specifically described. Based on the method, the requirements of ultra-wide working frequency band matching and gain can be realized on one antenna, and meanwhile, the interference of frequency band overlapping in background processing equipment in the background technology is avoided.
In one possible implementation method, the first frequency band is 1200-6000MHz, the second frequency band is 20-300MHz, and the third frequency band is 300-1200 MHz.
In the scheme, the ultra-wideband antenna supports monitoring of electromagnetic wave signals in the range of 20-6000MHz, and can achieve the monitoring effect on short waves, ultra-short waves and microwaves.
In one possible implementation, the antenna further includes an antenna housing.
In the above scheme, through setting up the antenna dustcoat, each part that so can be with ultra wide band antenna encapsulates inside the antenna dustcoat to reduce the damage that external factors probably caused the ultra wide band antenna.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an ultra-wideband antenna structure provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a finished ultra-wideband antenna provided in an embodiment of the present application;
fig. 3 is a schematic diagram of an LC combiner according to an embodiment of the present disclosure;
fig. 4 is a schematic illustration of a first pair of cone dipole pattern simulation reports provided by an embodiment of the present application;
FIG. 5 is a second exemplary dipole pattern simulation report provided by an embodiment of the present application;
fig. 6 is a schematic diagram of a third pair of cone dipole pattern simulation reports provided by an embodiment of the present application;
fig. 7 is a schematic view of a complete machine test standing wave curve of an ultra-wideband antenna according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
Aiming at the problem that the electromagnetic wave signals of a wider frequency band can not be monitored through one antenna at present, even if the problem is solved by arranging a plurality of antennas, the problem that frequency band overlapping interference is generated among the antennas or the frequency bands can not be covered still exists, so that the monitoring effect is poor.
In view of the above technical problems, an embodiment of the present application provides an ultra-wideband antenna, which adopts the idea of combining a segmented antenna with a frequency division combiner during design, divides the antenna into a plurality of groups to be tapered dipole antennas, and combines the antennas into one port through a combiner, thereby satisfying the requirements of ultra-wide working frequency band matching and gain on one antenna.
Fig. 1 is a schematic view (cross-sectional view) of an ultra-wideband antenna structure provided in an embodiment of the present application. Referring to fig. 1, in the embodiment of the present application, each component of the ultra-wideband antenna is identified by a number. The parts corresponding to the number 1 are antenna covers, the parts corresponding to the number 2 are first pair of conical dipoles, the parts corresponding to the number 3 are pair of conical dipole fixing pieces, the parts corresponding to the number 4 are supporting pieces, the parts corresponding to the number 5 are third pair of conical dipoles, the parts corresponding to the number 6 are LC combiners, the parts corresponding to the number 7 are second pair of conical dipoles, the parts corresponding to the number 8 are joint mounting base supporting pieces, the parts corresponding to the number 9 are joint mounting bases, the parts corresponding to the number 10 are hoops, and the parts corresponding to the number 11 are joints.
It is noted that the corresponding feeder cable is not shown in fig. 1.
Based on fig. 1, the present embodiment provides an ultra-wideband antenna including a first pair of tapered dipoles (refer to the part corresponding to numeral "2" in fig. 1), a second pair of tapered dipoles (refer to the part corresponding to numeral "7" in fig. 1), a combiner (refer to the part corresponding to numeral "6" in fig. 1), a first feed cable, a second feed cable, a third feed cable, and a joint (refer to the part corresponding to numeral "11" in fig. 1).
Wherein the minimum value in the first frequency band in which the first pair of tapered dipoles operate is higher than the maximum value in the second frequency band in which the second pair of tapered dipoles operate. In some implementations of the present application, the first frequency band is 1200-6000MHz and the second frequency band is 20-300 MHz.
Since the first frequency band of the first pair of conical dipoles is higher than the second frequency band of the second pair of conical dipoles, in order to reduce the loss of the feeding cable of the first pair of conical dipoles, the first pair of conical dipoles may be disposed at the top of the antenna and the second pair of conical dipoles may be disposed at the bottom of the antenna, where the joint is located at the bottom of the antenna, and the combiner is disposed between the first pair of conical dipoles and the second pair of conical dipoles.
A first pair of conical dipoles, a combiner, a second pair of conical dipoles and a joint are sequentially arranged from the top to the bottom of the antenna, such that a feed cable may be used to connect the first pair of conical dipoles and the combiner, and a feed cable may be used to connect the second pair of conical dipoles and the combiner, wherein the feed cable used to connect the first pair of conical dipoles and the combiner is a first feed cable, and the feed cable used to connect the second pair of conical dipoles and the combiner is a second feed cable, wherein the first feed cable may be used to transmit the electromagnetic wave signal received by the first pair of conical dipoles to the combiner through the first feed cable, the second feed cable may be used to transmit the electromagnetic wave signal received by the second pair of conical dipoles to the combiner through the second feed cable, and wherein the electromagnetic wave signal transmitted by the first feed cable is the first signal, the electromagnetic wave signal transmitted by the second feed cable is the second signal, so that after the combiner receives the first signal and the second signal, the two paths of signals are combined to obtain a comprehensive signal, and finally the combiner can transmit the generated comprehensive signal to the joint through the third feed cable, wherein the third feed cable is used for connecting the combiner and the joint, and the joint is used for sending the received comprehensive signal to the background processing equipment.
In some implementations of the present application, the antenna further includes a third pair of tapered dipoles and a fourth feed cable; a third frequency band in which the third pair of conical dipoles work is from the maximum value in the second frequency band to the minimum value in the first frequency band; the third pair of tapered dipoles is arranged between the first pair of tapered dipoles and the combiner; the fourth feed cable is used for feeding the third pair of conical dipoles and is connected to the combiner.
For example, based on fig. 1, the present embodiment provides an ultra-wideband antenna including a first pair of tapered dipoles (refer to the component corresponding to numeral "2" in fig. 1), a second pair of tapered dipoles (refer to the component corresponding to numeral "7" in fig. 1), a third pair of tapered dipoles (refer to the component corresponding to numeral "5" in fig. 1), a combiner (refer to the component corresponding to numeral "6" in fig. 1), a first feeder cable, a second feeder cable, a third feeder cable, a fourth feeder cable, and a joint (refer to the component corresponding to numeral "11" in fig. 1).
And the third frequency band of the third pair of conical dipoles is from the maximum value in the second frequency band of the second pair of conical dipoles to the minimum value in the first frequency band of the first pair of conical dipoles. In some implementations of the present application, the first frequency band is 1200-6000MHz, the third frequency band is 300-1200MHz, and the second frequency band is 20-300 MHz.
Since the first frequency band of the first pair of conical dipoles is higher than the second frequency band of the second pair of conical dipoles, in order to reduce the loss of the feeding cable of the first pair of conical dipoles, the third pair of conical dipoles, the combiner, the second pair of conical dipoles and the connector are sequentially arranged from the top to the bottom of the antenna, so that one feeding cable may be used to connect the first pair of conical dipoles and the combiner, one feeding cable may be used to connect the third pair of conical dipoles and the combiner, and one feeding cable may be used to connect the second pair of conical dipoles and the combiner, wherein the feeding cable used to connect the first pair of conical dipoles and the combiner is the first feeding cable, the feeding cable used to connect the second pair of conical dipoles and the combiner is the second feeding cable, and the feeding cable used to connect the third pair of conical dipoles and the combiner is the fourth feeding cable, wherein the first feeder cable is operable to transmit electromagnetic wave signals received by the first pair of conical dipoles to the combiner via the first feeder cable, the second feeder cable is operable to transmit electromagnetic wave signals received by the second pair of conical dipoles to the combiner via the second feeder cable, the fourth feeder cable is operable to transmit electromagnetic wave signals received by the third pair of conical dipoles to the combiner via the fourth feeder cable, wherein the first feeder cable passes through the third pair of conical dipoles before passing out of the first pair of conical dipoles and connecting to the combiner, and the fourth feeder cable passes through the second pair of conical dipoles before passing out of the combiner and connecting to the junction, i.e. two feeder cables pass through the second feeder cable and the third feeder cable respectively for the second pair of conical dipoles and the third pair of conical dipoles, the fourth feeder cable and the first feeder cable are passed through in the third pair of tapered dipoles), but since the frequency band in which the second pair of tapered dipoles and the third pair of tapered dipoles operate is small, the influence of the feeder cable on the second pair of tapered dipoles and the third pair of tapered dipoles is small, compared with the case where only one feeder cable, namely the first feeder cable, is passed through in the first pair of tapered dipoles, the influence of the feeder cable on the first pair of tapered dipoles is small or even negligible even though the frequency band in which the first pair of tapered dipoles operates is high.
The first counterpoint dipole, the third counterpoint dipole, the combiner, the second counterpoint dipole and the joint are sequentially arranged from the top of the antenna to the bottom of the antenna, so that the influence of the counterpoint dipole of each working frequency band on a feed cable can be ignored, and the working effect of the ultra-wideband antenna is good.
In some implementations of the present application, the antenna further includes a first tapered dipole fixture and a second tapered dipole fixture; the first tapered dipole fixing piece and the second tapered dipole fixing piece are used for fixing the first tapered dipole and the second tapered dipole respectively.
Specifically, referring to fig. 1, in order from the top of the antenna to the bottom of the antenna (i.e., looking at each component of the antenna in fig. 1 in order from left to right), a component corresponding to a first number "3" is a first pair of tapered dipole fixtures, a component corresponding to a second number "3" is a third pair of tapered dipole fixtures, and a component corresponding to a third number "3" is a second pair of tapered dipole fixtures. The first tapered dipole fixing piece, the second tapered dipole fixing piece and the third tapered dipole fixing piece are used for fixing the first tapered dipole, the second tapered dipole and the third tapered dipole respectively.
In some implementations of the present application, the antenna further includes a first support and a second support; the first support piece is used for connecting the first pair of conical dipoles and the combiner and is used for winding the first feed cable; the second support is used for connecting the second dipole-dipole pair and the combiner and is used for winding the second feed cable.
Specifically, referring to fig. 1, the antenna is arranged from the top of the antenna to the bottom of the antenna (i.e., see the components of the antenna in fig. 1 in the order from left to right), wherein the component corresponding to the first number "4" is a first supporting member, the component corresponding to the second number "4" is a third supporting member, and the component corresponding to the third number "4" is a second supporting member, wherein each supporting member can be used for spatially coupling two adjacent components, and for winding a feeder cable, that is, for connecting two components on a circuit structure. For example, the first support member may be configured to connect the first pair of tapered dipoles and the third pair of tapered dipoles, and to wind the first feeder cable such that the first feeder cable passes through the first pair of tapered dipoles, continues to pass through the third pair of tapered dipoles by winding around the first support member, then continues to wind around the second support member, and finally connects to the combiner; the second support may be for connecting the second dipole-dipole and the combiner, and for winding a second feed cable such that the second feed cable is connected to the combiner; the third support may be for connecting the third pair of tapered dipoles and the combiner, and for winding a fourth feed cable such that the fourth feed cable is connected to the combiner; the second support may also be used to wind a third feed cable leading from the combiner, which may ultimately be connected to a connector at the bottom of the antenna.
In certain implementations of the present application, the antenna further includes a connector mounting base support and a connector mounting base; the joint mounting base support is used for connecting the second dipole-dipole and the joint mounting base; the joint mounting base is used for arranging the joint.
Specifically, referring to fig. 1, the component corresponding to the numeral "8" is a joint mounting base support, and the component corresponding to the numeral "9" is a joint mounting base. In the assembling process of the ultra-wideband antenna, the connector mounting base support is used for connecting the second dipole-cone dipole with the connector mounting base, and the connector is arranged in the connector mounting base, so that on one hand, the spatial coupling of the two structures of the second dipole-cone dipole and the connector is realized, on the other hand, the transmission of the comprehensive signal in the third feed cable from the combiner to the connector through the connector mounting base support is also realized, and the connection of the two structures of the second dipole-cone dipole and the connector on a circuit is also realized. In certain implementations of the present application, the joint may be an N-head design.
In certain implementations of the present application, the antenna further includes a hoop; the hoop is used for connecting the connector mounting base and an object to be mounted.
Specifically, referring to fig. 1, the part corresponding to the numeral "10" is the hoop, and in some implementations of the present application, a metal material may be used. The hoop can be used for connecting the connector mounting base and an object to be mounted, so that the ultra-wideband antenna is mounted on the object to be mounted. Wherein, the staple bolt can realize connecting between joint installation base and the object of treating to install through the mode of screw installation in the in-process of using.
In some implementations of the present application, the antenna further includes an antenna housing.
Specifically, referring to fig. 2, for a schematic diagram of a finished ultra-wideband antenna provided in an embodiment of the present application, structures of the ultra-wideband antenna have been completely encapsulated inside an antenna housing, and only a joint shown on the left side of fig. 2 is visible to a user. Through setting up the antenna dustcoat, each part encapsulation that so can be with ultra wide band antenna is inside the antenna dustcoat to reduce the damage that external factors probably caused the ultra wide band antenna. Optionally, the antenna housing may be made of glass fiber reinforced plastic.
In certain implementations of the present application, the combiner is an LC combiner or an active combiner.
For example, the working principle of the ultra-wideband antenna designed in the present application is described by taking the design of the combiner using an LC combiner as an example.
Specifically, as shown in fig. 3, a schematic diagram of an LC combiner provided in the embodiment of the present application is shown. Fig. 3 includes 4 ports, which are respectively labeled as Term1, Term2, Term3, and Term4, and includes 14 capacitors, which are respectively labeled as C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, and C14, and includes 14 resistors, which are respectively labeled as L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, and L14. The Term2 represents a first port, one end of the first port is used for being connected with a first feeding cable, the other end of the first port is used for being connected with one end of a first filter, the first filter relates to a circuit structure where C7, C6, C5, C12, L7, L6 and L5 are located, the other end of the first filter is used for being connected with one end of a third port represented by Term4, and the first filter is used for filtering electromagnetic wave signals, so that the electromagnetic wave signals in a first frequency band are screened out, namely the electromagnetic wave signals in the frequency band of 1200-6000MHz are screened out; the other end of the Term4 is used for connecting a third feeder cable which is used for connecting a connector; term1 denotes a second port, one end of which is used to connect with a second feeder cable, and the other end of which is used to connect with one end of a second filter, wherein the second filter relates to a circuit structure in which C8, C9, C10, L8, L9, L10, and L11 are located, the other end of the second filter is connected with a third filter, and the second filter is used to filter electromagnetic wave signals, so as to filter electromagnetic wave signals in a second frequency band, that is, electromagnetic wave signals in the frequency band of 20-300 MHz; term2 denotes a fourth port, one end of which is used to connect with a fourth feeding cable, and the other end of which is used to connect with one end of a fourth filter, wherein the fourth filter relates to the circuit structure where C1, C2, C3, C4, L1, L2 and L3 are located, the other end of which is used to connect with a third filter, and the fourth filter is used to filter the electromagnetic wave signal, so as to filter the electromagnetic wave signal in the third frequency band, i.e. the electromagnetic wave signal in the frequency band of 300 + 1200 MHz. The third filter relates to a circuit structure of C11, C13, C14, L12, L13, L14 and L4, and is used for filtering electromagnetic wave signals, so that electromagnetic wave signals of a second frequency band and a third frequency band are screened out, namely electromagnetic wave signals of the frequency band of 20-1200MHz are screened out.
Fig. 4 is a schematic diagram of a first pair of cone dipole pattern simulation reports provided in the embodiments of the present application. The results of fig. 4 illustrate that the ultra-wideband antenna designed by the present application can be used effectively to meet the relevant operating requirements.
Fig. 5 is a schematic diagram of a simulation report of a second dipole pattern according to an embodiment of the present application. The results of fig. 5 illustrate that the ultra-wideband antenna designed by the present application can be used effectively to meet the relevant operating requirements.
Fig. 6 is a schematic diagram of a third pair of cone dipole pattern simulation reports provided in the embodiment of the present application. The results of fig. 6 illustrate that the ultra-wideband antenna designed by the present application can be used effectively to meet the relevant operating requirements.
Fig. 7 is a schematic view of a complete machine test standing wave curve of an ultra-wideband antenna according to an embodiment of the present disclosure. According to fig. 7, the standing wave of more than 95% frequency band is less than 3, and the standing wave of the highest point is 3.6, so that the normal communication use requirement is met.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An ultra-wideband antenna is characterized by comprising a first pair of conical dipoles, a second pair of conical dipoles, a combiner, a first feed cable, a second feed cable, a third feed cable and a joint; wherein a minimum value in a first frequency band in which the first pair of tapered dipoles operate is higher than a maximum value in a second frequency band in which the second pair of tapered dipoles operate;
the first tapered dipole is arranged at the top of the antenna, the second tapered dipole is arranged at the bottom of the antenna, and the combiner is arranged between the first tapered dipole and the second tapered dipole;
the first feed cable is used for feeding the first pair of conical dipoles and connecting to the combiner, the second feed cable is used for feeding the second pair of conical dipoles and connecting to the combiner, and the third feed cable is used for connecting the combiner and the joint;
the combiner is configured to combine a first signal sent by the first tapered dipole through the first feed cable and a second signal sent by the second tapered dipole through the second feed cable, and then transmit an obtained combined signal to the joint through the third feed cable; the connector is used for sending the comprehensive signal to background processing equipment.
2. The antenna of claim 1, further comprising a third pair of tapered dipoles and a fourth feed cable; a third frequency band in which the third pair of conical dipoles work is from the maximum value in the second frequency band to the minimum value in the first frequency band;
the third pair of tapered dipoles is arranged between the first pair of tapered dipoles and the combiner;
the fourth feed cable is used for feeding the third pair of conical dipoles and is connected to the combiner.
3. The antenna of claim 1, further comprising a first pair of tapered dipole fixtures and a second pair of tapered dipole fixtures;
the first tapered dipole fixing piece and the second tapered dipole fixing piece are used for fixing the first tapered dipole and the second tapered dipole respectively.
4. The antenna of claim 1, wherein the antenna further comprises a first support and a second support;
the first support piece is used for connecting the first pair of conical dipoles and the combiner and is used for winding the first feed cable;
the second support is used for connecting the second dipole-dipole pair and the combiner and is used for winding the second feed cable.
5. The antenna of claim 1, further comprising a connector mounting base support and a connector mounting base;
the joint mounting base support is used for connecting the second dipole-dipole and the joint mounting base;
the joint mounting base is used for arranging the joint.
6. The antenna of claim 5, wherein the antenna further comprises a hoop;
the hoop is used for connecting the connector mounting base and an object to be mounted.
7. The antenna of claim 2, wherein the combiner is an LC combiner or an active combiner.
8. The antenna of claim 7, wherein the LC combiner comprises:
a first port for connection with the first feeder cable;
the first filter is used for filtering the signal to obtain a signal of a first frequency band; one end of the first filter is connected with the first port, and the other end of the first filter is connected with the third port;
a second port for connection with the second feeder cable;
the second filter is used for filtering the signal to obtain a signal of a second frequency band; one end of the second filter is connected with the second port, and the other end of the second filter is connected with a third filter;
the third port is used for being connected with the third feeder cable;
the third filter is used for filtering the signal to obtain a signal which accords with a second frequency band and a third frequency band;
a fourth port for connection with the fourth feeder cable;
the fourth filter is used for filtering the signal to obtain a signal of a third frequency band; one end of the fourth filter is connected with the fourth port, and the other end of the fourth filter is connected with the third filter.
9. The antenna as claimed in any of claims 1-8, wherein the first frequency band is 1200-6000MHz, the second frequency band is 20-300MHz, and the third frequency band is 300-1200 MHz.
10. The antenna of claim 9, further comprising an antenna housing.
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| CN202111577848.7A CN114256627B (en) | 2021-12-22 | 2021-12-22 | Ultra-wideband antenna |
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| CN202111577848.7A CN114256627B (en) | 2021-12-22 | 2021-12-22 | Ultra-wideband antenna |
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