CN114256627B - Ultra-wideband antenna - Google Patents
Ultra-wideband antenna Download PDFInfo
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- CN114256627B CN114256627B CN202111577848.7A CN202111577848A CN114256627B CN 114256627 B CN114256627 B CN 114256627B CN 202111577848 A CN202111577848 A CN 202111577848A CN 114256627 B CN114256627 B CN 114256627B
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- 238000009434 installation Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 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
- 239000007769 metal material Substances 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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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 cone dipoles are arranged at the top of the antenna, and a second pair of cone dipoles are arranged at the bottom of the antenna; the first feeder cable is used for feeding the first pair of tapered dipoles and connecting to the combiner, the second feeder cable is used for feeding the second pair of tapered dipoles and connecting to the combiner, and the third feeder cable is used for connecting the combiner and the connector; the combiner is used for combining a first signal sent by the first pair of tapered dipoles through the first feeder cable and a second signal sent by the second pair of tapered dipoles through the second feeder cable, and then transmitting the obtained combined signal to the connector through the third feeder cable. According to the method, the antenna is divided into a plurality of groups of pairs of cone dipole antennas through the thinking of combining the sectional antennas with frequency division and combining design, and the cone dipole antennas are combined into one port through a combiner, so that the requirements of ultra-wide working frequency band matching and gain on one antenna are met.
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, through which the transmission of most wireless communication signals can be monitored. Based on the mode, the phenomenon that the examinee cheats in a wireless communication mode can be greatly reduced, and the fairness and fairness of the examination are guaranteed.
Currently used monitoring antennas often employ a architecture in which multiple antennas work together, where different antennas cover different frequency bands, and each antenna can only monitor communication signals in a 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 conventional pair of dipole antennas or sleeve monopole antennas or other antennas cannot achieve coverage of short wave, ultrashort wave and microwave frequency ranges on one antenna, 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 easily has the problem that frequency ranges overlap and interfere or the frequency ranges cannot be covered, so that the monitoring effect is obviously reduced.
In view of the foregoing, there is a need for an ultra wideband antenna for monitoring electromagnetic signals over a wide frequency band on one antenna.
Disclosure of Invention
The application provides an ultra-wideband antenna for realize covering the electromagnetic wave signal of shortwave, ultrashort wave and microwave three frequency channel scope through an antenna monitoring.
In a first aspect, embodiments of the present application provide an ultra-wideband antenna, the antenna comprising: a first pair of tapered dipoles, a second pair of tapered dipoles, a combiner, a first feeder cable, a second feeder cable, a third feeder 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 pair of cone dipoles are arranged at the top of the antenna, the second pair of cone dipoles are arranged at the bottom of the antenna, and the combiner is arranged between the first pair of cone dipoles and the second pair of cone dipoles; the first feeder cable is used for feeding the first pair of tapered dipoles and connecting to the combiner, the second feeder cable is used for feeding the second pair of tapered dipoles and connecting to the combiner, and the third feeder 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 tapered dipoles through the first feeder cable and a second signal sent by the second pair of tapered dipoles through the second feeder cable, and then transmitting the obtained integrated signal to the connector through the third feeder cable; the connector is used for sending the integrated signal to background processing equipment.
In the above scheme, two pairs of tapered 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 feeder cables. In the mode, the antenna is divided into a plurality of groups of pairs of cone dipole antennas through the thought of combining the sectional antennas with frequency division and combining design, and the cone dipole antennas are combined into one port through a 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; wherein, a third frequency band of the third pair of tapered dipoles is a maximum value in the second frequency band to a 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 feeder cable is used for feeding the third pair of tapered dipoles and is connected to the combiner.
In the above scheme, since the frequency bands of the first pair of tapered dipoles and the second pair of tapered dipoles respectively work are not crossed, in order to realize the monitoring of the electromagnetic wave signals of the wider frequency band, the third pair of tapered dipoles and the fourth feeder cable can be designed, wherein the designed working frequency band of the third pair of tapered dipoles is just the maximum value in the second frequency band to the minimum value in the first frequency band, and the designed fourth feeder cable is used for sending the electromagnetic wave signals received by the third pair of tapered dipoles to the combiner so as to filter the electromagnetic wave signals of the working frequency band of the third pair of tapered dipoles by the combiner and send the electromagnetic wave signals to the background processing equipment. In this way, the requirements of ultra-wide operating band matching and gain on one antenna are fulfilled.
In one possible implementation, the antenna further includes a first pair of tapered dipole fixtures and a second pair of tapered dipole fixtures; the first pair of tapered dipole fixing pieces and the second pair of tapered dipole fixing pieces are used for fixing the first pair of tapered dipoles and the second pair of tapered dipoles respectively.
In the scheme, the pair of conical dipole fixing pieces can be used for fixing the pair of conical dipoles through designing, so that the first pair of conical dipoles and the second pair of conical dipoles can be fixed by using the first pair of conical dipole fixing pieces and the second pair of conical dipole fixing pieces respectively in the process of assembling the ultra-wideband antenna, the combination stability between the first pair of conical dipoles and the second pair of conical dipoles and the antenna housing is improved, the problem that the pair of conical dipoles fall off from the antenna housing is not easy to occur, and the usability of the ultra-wideband antenna is ensured.
In one possible implementation, the antenna further comprises a first support and a second support; the first support is used for connecting the first pair of tapered dipoles and the combiner and winding the first feeder cable; the second support is for connecting the second pair of tapered dipoles with the combiner and for winding the second feeder cable.
In the above scheme, by designing the supporting piece, the supporting piece can be used for connecting two separate structures on one hand, and can also be used for winding the feeder cable on the other hand, so that in the process of assembling the ultra-wideband antenna, for example, the first supporting piece can be used for connecting the first pair of tapered dipoles and the combiner and winding the first feeder cable, the two structures of the first pair of tapered dipoles and the combiner are spatially coupled, and meanwhile, the electromagnetic wave signals received by the first pair of tapered dipoles are transmitted to the combiner through the first feeder cable wound on the first supporting piece, namely, the connection of the two structures of the first pair of tapered dipoles and the combiner on a circuit is realized; the second support is identical to the first support and therefore no longer has an effect.
In one possible implementation, the antenna further comprises a joint mounting base support and a joint mounting base; the joint mounting base support is used for connecting the second pair of tapered dipoles with the joint mounting base; the joint mounting base is used for setting the joint.
In the above scheme, through design joint installation base support piece and joint installation base, can make ultra wideband antenna at the in-process of equipment, because use joint installation base support piece to connect second pair of awl dipole and joint installation base to and set up the joint in the joint installation base, so realized on the one hand that this two structures of second pair of awl dipole and joint are in the coupling in space, on the other hand still realized that the integrated signal in the third feeder cable that comes out from the combiner passes through joint installation base support piece and transmits to the joint, has realized that this two structures of second pair of awl dipole and joint are connected in the circuit promptly.
In one possible implementation, the antenna further includes a hoop; the anchor ear is used for connecting the joint installation base and an object to be installed.
In the above-mentioned scheme, through designing the staple bolt, the staple bolt designs in the antenna bottom, when waiting to install the antenna on the object of installing, will be connected with waiting to install the object through the joint installation base of staple bolt to the antenna to realized installing the effect on waiting to install the object firmly with the antenna.
In one possible implementation, the combiner is an LC combiner or an active combiner.
In the scheme, the ultra-wideband antenna can adopt an LC combiner or an active combiner, and the two types of combiners can effectively filter electromagnetic wave signals received by the cone dipoles, so that the electromagnetic wave signals of an effective frequency band are screened.
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 signals to obtain signals 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 signals to obtain signals 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 the third filter; the third port is used for being connected with the third feeder cable; the third filter is used for filtering the signals to obtain signals conforming to the second frequency band and the third frequency band; a fourth port for connection with the fourth feeder cable; the fourth filter is used for filtering the signals to obtain signals 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, it is specifically described how the LC combiner filters electromagnetic wave signals received by each pair of tapered dipoles to screen out electromagnetic wave signals in an effective frequency band when the combiner is an LC combiner. Based on the mode, the requirements of ultra-wide working frequency band matching and gain can be met on one antenna, and meanwhile interference of frequency bands overlapped in background processing equipment in the background technology is avoided.
In one possible implementation, the first frequency band is 1200-6000MHz, the second frequency band is 20-300MHz, and the third frequency band is 300-1200MHz.
In the scheme, the ultra-wideband antenna can monitor electromagnetic wave signals in the range of 20-6000MHz, namely the ultra-wideband antenna 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 scheme, through setting up the antenna housing, so can encapsulate each part of ultra wideband antenna in the antenna housing is inside to reduce the possible damage that causes ultra wideband antenna of external factor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an ultra wideband antenna structure according to an embodiment of the present application;
fig. 2 is a schematic diagram of a finished ultra-wideband antenna according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an LC combiner according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a simulation report of a first pair of tapered dipole patterns according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a simulation report of a second pair of tapered dipole patterns according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a third pair of tapered dipole pattern simulation reports according to embodiments of the present application;
fig. 7 is a schematic diagram of a complete machine test standing wave curve of an ultra wideband antenna according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, wherein it is apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The method aims at the problem that the electromagnetic wave signal with a wider frequency band cannot be monitored through one antenna at present, wherein even if the problem is solved by arranging a plurality of antennae, the problem that frequency band overlapping interference is generated among the antennae or the frequency band cannot be covered still exists, so that the monitoring effect is poor.
According to the ultra-wideband antenna, the sectional antenna is combined with the frequency division and combining design concept during design, the antenna is divided into a plurality of groups of opposite cone dipole antennas, and the opposite cone dipole antennas are combined into one port through the combiner, so that the requirements of ultra-wideband working frequency band matching and gain on one antenna are met.
Fig. 1 is a schematic diagram (cross-sectional view) of an ultra-wideband antenna structure according to an embodiment of the present application. With respect to fig. 1, the various components of the ultra-wideband antenna are identified by numerals in the embodiments of the present application. Wherein the component corresponding to the number '1' is an antenna housing, the component corresponding to the number '2' is a first pair of cone dipoles, the component corresponding to the number '3' is a cone dipole fixing piece, the component corresponding to the number '4' is a supporting piece, the component corresponding to the number '5' is a third pair of cone dipoles, the component corresponding to the number '6' is an LC combiner, the component corresponding to the number '7' is a second pair of tapered dipoles, the component corresponding to the number '8' is a joint mounting base support, the component corresponding to the number '9' is a joint mounting base, the component corresponding to the number '10' is a hoop, and the component corresponding to the number '11' is a joint.
Illustratively, the corresponding feeder cable is not shown in FIG. 1.
Based on fig. 1, an embodiment of the present application provides an ultra-wideband antenna, which includes a first pair of tapered dipoles (refer to the component corresponding to the numeral "2" in fig. 1), a second pair of tapered dipoles (refer to the component corresponding to the numeral "7" in fig. 1), a combiner (refer to the component corresponding to the numeral "6" in fig. 1), a first feeder cable, a second feeder cable, a third feeder cable, and a joint (refer to the component corresponding to the numeral "11" in fig. 1).
Wherein a minimum value in a first frequency band in which the first pair of tapered dipoles operates is higher than a maximum value in a second frequency band in which the second pair of tapered dipoles operates. In certain implementations of the present application, the first frequency band is 1200-6000MHz and the second frequency band is 20-300MHz.
Since the first frequency band in which the first pair of tapered dipoles operates is higher than the second frequency band in which the second pair of tapered dipoles operates, in order to reduce the loss of the feeder cable of the first pair of tapered dipoles, in the embodiment of the present application, the first pair of tapered dipoles may be disposed at the top of the antenna, the second pair of tapered dipoles may be disposed at the bottom of the antenna, where the position of the joint belongs to the bottom of the antenna, and the combiner may be disposed between the first pair of tapered dipoles and the second pair of tapered dipoles.
The first pair of cone dipoles, the combiner, the second pair of cone dipoles and the connector are sequentially arranged from the top of the antenna to the bottom of the antenna, so that one feeder cable can be used for connecting the first pair of cone dipoles with the combiner, and one feeder cable is used for connecting the second pair of cone dipoles with the combiner, wherein the feeder cable used for connecting the first pair of cone dipoles with the combiner is the first feeder cable, the feeder cable used for connecting the second pair of cone dipoles with the combiner is the second feeder cable, the first feeder cable can be used for transmitting electromagnetic wave signals received by the first pair of cone dipoles to the combiner through the first feeder cable, the second feeder cable can be used for transmitting electromagnetic wave signals received by the second pair of cone dipoles to the combiner through the second feeder cable, the electromagnetic wave signals transmitted by the second feeder cable are the second signal, after the combiner receives the first signal and the second signal, the two feeder cables are processed and the first feeder cable and the second feeder cable are combined, and the third feeder cable can be used for transmitting the combined signals to the third feeder cable, and the combined device can be used for transmitting the combined signals to the third feeder cable.
In certain implementations of the present application, the antenna further includes a third pair of tapered dipoles and a fourth feeder cable; wherein, a third frequency band of the third pair of tapered dipoles is a maximum value in the second frequency band to a 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 feeder cable is used for feeding the third pair of tapered dipoles and is connected to the combiner.
For example, based on fig. 1, an embodiment of the present application provides an ultra-wideband antenna that includes a first pair of tapered dipoles (refer to the component corresponding to the numeral "2" in fig. 1), a second pair of tapered dipoles (refer to the component corresponding to the numeral "7" in fig. 1), a third pair of tapered dipoles (refer to the component corresponding to the numeral "5" in fig. 1), a combiner (refer to the component corresponding to the 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 the numeral "11" in fig. 1).
The third frequency band of the third pair of tapered dipoles is a maximum value in the second frequency band of the second pair of tapered dipoles to a minimum value in the first frequency band of the first pair of tapered dipoles. In certain 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 20-300MHz.
Because the first frequency band of the first pair of cone dipoles is higher than the second frequency band of the second pair of cone dipoles, in order to reduce the loss of the feeder cable of the first pair of cone dipoles, the third pair of cone dipoles, the combiner, the second pair of cone dipoles and the connector are sequentially arranged from the top of the antenna to the bottom of the antenna, one feeder cable can be used for connecting the first pair of cone dipoles with the combiner, one feeder cable can be used for connecting the third pair of cone dipoles with the combiner, one feeder cable can be used for connecting the second pair of cone dipoles with the combiner, and one feeder cable can be used for connecting the second pair of cone dipoles with the combiner, wherein the feeder cable used for connecting the first pair of cone dipoles with the combiner is the first feeder cable, the feeder cable used for connecting the second pair of cone dipoles with the combiner is the second feeder cable, the feeder cable for connecting the third pair of tapered dipoles with the combiner is a fourth feeder cable, wherein the first feeder cable is operable to transmit electromagnetic wave signals received by the first pair of tapered dipoles to the combiner through the first feeder cable, the second feeder cable is operable to transmit electromagnetic wave signals received by the second pair of tapered dipoles to the combiner through the second feeder cable, the fourth feeder cable is operable to transmit electromagnetic wave signals received by the third pair of tapered dipoles to the combiner through the fourth feeder cable, wherein the first feeder cable is further operable to pass through the third pair of tapered dipoles before passing out of the first pair of tapered dipoles and connecting to the combiner, and the fourth feeder cable is further operable to pass through the second pair of tapered dipoles before passing out of the combiner and connecting to the connector, that is, the second pair of tapered dipoles and the third pair of tapered dipoles will have two feeder cables passing through them (i.e., the second pair of tapered dipoles passes through the second feeder cable and the third feeder cable, the third pair of tapered dipoles passes through the fourth feeder cable and the first feeder cable), respectively, but since the frequency bands in which the second pair of tapered dipoles and the third pair of tapered dipoles operate are smaller, the influence of the feeder cables on the second pair of tapered dipoles and the third pair of tapered dipoles is smaller, in contrast to the first pair of tapered dipoles, which will only pass through one feeder cable, i.e., the first feeder cable, so that even if the frequency band in which the first pair of tapered dipoles operates is higher, the influence of the feeder cables on the first pair of tapered dipoles is smaller, or even negligible.
The ultra-wideband antenna obtained by sequentially arranging the first pair of tapered dipoles, the third pair of tapered dipoles, the combiner, the second pair of tapered dipoles and the connector from the top of the antenna to the bottom of the antenna can realize that the influence of the tapered dipoles in each working frequency band on the feeder cable can be ignored, so that the working effect of the ultra-wideband antenna is good.
In certain implementations of the present application, the antenna further includes a first pair of tapered dipole fixtures and a second pair of tapered dipole fixtures; the first pair of tapered dipole fixing pieces and the second pair of tapered dipole fixing pieces are used for fixing the first pair of tapered dipoles and the second pair of tapered dipoles respectively.
Specifically, referring to fig. 1, the components of the antenna in the order from the top of the antenna to the bottom of the antenna (i.e., the components of the antenna in fig. 1 are viewed in a left-to-right order), wherein the first component corresponding to the number "3" is a first pair of tapered dipole fixtures, the second component corresponding to the number "3" is a third pair of tapered dipole fixtures, and the third component corresponding to the number "3" is a second pair of tapered dipole fixtures. The first pair of conical dipole fixing pieces, the second pair of conical dipole fixing pieces and the third pair of conical dipole fixing pieces are used for fixing the first pair of conical dipoles, the second pair of conical dipoles and the third pair of conical dipoles respectively.
In certain implementations of the present application, the antenna further comprises a first support and a second support; the first support is used for connecting the first pair of tapered dipoles and the combiner and winding the first feeder cable; the second support is for connecting the second pair of tapered dipoles with the combiner and for winding the second feeder cable.
Specifically, referring to fig. 1, the components of the antenna in fig. 1 are shown in the order from the top of the antenna to the bottom of the antenna (i.e., the components of the antenna are shown in the order from left to right), wherein the component corresponding to the first numeral "4" is a first support, the component corresponding to the second numeral "4" is a third support, and the component corresponding to the third numeral "4" is a second support, wherein each support is used to spatially couple two adjacent components and to wind a feeder cable, i.e., to connect the two components in a circuit structure. For example, the first support may be used to connect the first pair of tapered dipoles with the third pair of tapered dipoles and to wind the first feeder cable such that the first feeder cable, after being threaded out of the first pair of tapered dipoles, continues to pass through the third pair of tapered dipoles by winding around the first support, then continues to wind around the second support and finally connects to the combiner; the second support may be used to connect the second pair of tapered dipoles with the combiner and to wind the second feeder cable such that the second feeder cable is connected to the combiner; the third support may be used to connect the third pair of tapered dipoles with the combiner and to wind the fourth feeder cable such that the fourth feeder cable is connected to the combiner; the second support may also be used to wind a third feeder cable leading from the combiner, which third feeder cable may eventually be connected to a joint at the bottom of the antenna.
In certain implementations of the present application, the antenna further comprises a joint mounting base support and a joint mounting base; the joint mounting base support is used for connecting the second pair of tapered dipoles with the joint mounting base; the joint mounting base is used for setting 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 process of assembling the ultra-wideband antenna, the connector mounting base support is used for connecting the second pair of tapered dipoles with the connector mounting base, and the connector is arranged in the connector mounting base, so that on one hand, the two structures of the second pair of tapered dipoles and the connector are spatially coupled, and on the other hand, the integrated signal in the third feeder cable coming out of the combiner is transmitted to the connector through the connector mounting base support, namely, the two structures of the second pair of tapered dipoles and the connector are electrically connected. In some implementations of the present application, the joint may be of an N-head design.
In certain implementations of the present application, the antenna further comprises a staple bolt; the anchor ear is used for connecting the joint installation base and an object to be installed.
Specifically, referring to fig. 1, the component corresponding to the numeral "10" is a hoop, and in some implementations of the present application, a metal material may be used. The anchor ear can be used for connecting the joint installation base and the object to be installed, so that the ultra-wideband antenna is installed on the object to be installed. The anchor ear can be connected between the joint installation base and an object to be installed in a screw installation mode in the using process.
In certain 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, each structure of the ultra-wideband antenna is already completely encapsulated inside an antenna housing, and only the joint shown on the left side of fig. 2 is visible to the naked eye of a user. Through setting up the antenna housing, so can be with the inside of each part encapsulation in the antenna housing of ultra wideband antenna to reduce the possible damage that causes ultra wideband antenna of external factor. Alternatively, 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 design of the combiner using an LC combiner is taken as an example, and the working principle of the ultra wideband antenna designed in the present application is described.
Specifically, as shown in fig. 3, a schematic diagram of an LC combiner is provided in an embodiment of the present application. Wherein, fig. 3 includes 4 ports, respectively labeled as Term1, term2, term3, and Term4, including 14 capacitors, respectively labeled as C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, including 14 resistors, respectively labeled as L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14. Wherein, term2 represents a first port, one end of which is used for being connected with a first feeder cable, and the other end is used for being connected with one end of a first filter, wherein, the first filter relates to a circuit structure where C7, C6, C5, C12, L7, L6 and L5 are positioned, 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, thereby screening out electromagnetic wave signals of a first frequency band, namely, electromagnetic wave signals of a frequency band of 1200-6000 MHz; the other end of Term4 is used to connect a third feeder cable for connection to the connector; the Term1 represents a second port, one end of which is used for being connected with a second feeder cable, and the other end of which is used for being connected with one end of a second filter, wherein the second filter relates to a circuit structure where 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 for filtering electromagnetic wave signals, so that electromagnetic wave signals of a second frequency band are screened out, namely electromagnetic wave signals of a frequency band of 20-300MHz are screened out; and Term2 represents a fourth port, one end of which is used for being connected with a fourth feeder cable, and the other end of which is used for being connected with one end of a fourth filter, wherein the fourth filter relates to a circuit structure where C1, C2, C3, C4, L1, L2 and L3 are located, the other end of which is used for being connected with a third filter, and the fourth filter is used for filtering electromagnetic wave signals, so that electromagnetic wave signals of a third frequency band are screened out, namely electromagnetic wave signals of a frequency band of 300-1200MHz are screened out. The third filter relates to a circuit structure where C11, C13, C14, L12, L13, L14 and L4 are located, 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 a frequency band of 20-1200MHz are screened out.
Fig. 4 is a schematic diagram of a simulation report of a first pair of tapered dipole patterns according to an embodiment of the present application. According to the result of fig. 4, it is illustrated that the ultra-wideband antenna designed in the application meets the relevant working requirements.
Fig. 5 is a schematic diagram of a simulation report of a second pair of tapered dipole patterns according to an embodiment of the present application. According to the result of fig. 5, it is illustrated that the ultra-wideband antenna designed in the application meets the relevant working requirements.
Fig. 6 is a schematic diagram of a third pair of tapered dipole pattern simulation report according to an embodiment of the present application. According to the result of fig. 6, it is illustrated that the ultra-wideband antenna designed in the application meets the relevant operation requirements.
Fig. 7 is a schematic diagram of a complete machine test standing wave curve of an ultra-wideband antenna according to an embodiment of the present application. According to fig. 7, more than 95% of the frequency band standing waves are less than 3, and the highest point standing waves are 3.6, so that the normal communication use requirements are met.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (9)
1. An ultra-wideband antenna is characterized by comprising a first pair of tapered dipoles, a second pair of tapered dipoles, a combiner, a first feeder cable, a second feeder cable, a third feeder cable and a connector; 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 pair of cone dipoles are arranged at the top of the antenna, the second pair of cone dipoles are arranged at the bottom of the antenna, and the combiner is arranged between the first pair of cone dipoles and the second pair of cone dipoles;
the first feeder cable is used for feeding the first pair of tapered dipoles and connecting to the combiner, the second feeder cable is used for feeding the second pair of tapered dipoles and connecting to the combiner, and the third feeder 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 tapered dipoles through the first feeder cable and a second signal sent by the second pair of tapered dipoles through the second feeder cable, and then transmitting the obtained integrated signal to the connector through the third feeder cable; wherein the connector is used for sending the integrated signal to background processing equipment;
the antenna further includes a third pair of tapered dipoles and a fourth feeder cable; wherein, a third frequency band of the third pair of tapered dipoles is a maximum value in the second frequency band to a 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 feeder cable is used for feeding the third pair of tapered dipoles and is connected to the combiner; the first feeder cable passes through the third pair of tapered dipoles before passing out of the first pair of tapered dipoles and connecting to the combiner;
the fourth feeder cable passes through the second pair of tapered dipoles before passing out of the combiner and being connected to the splice;
the second pair of tapered dipoles and the third pair of tapered dipoles are respectively provided with two feeder cables.
2. The antenna of claim 1, further comprising a first pair of tapered dipole fixtures and a second pair of tapered dipole fixtures;
the first pair of tapered dipole fixing pieces and the second pair of tapered dipole fixing pieces are used for fixing the first pair of tapered dipoles and the second pair of tapered dipoles respectively.
3. The antenna of claim 1, wherein the antenna further comprises a first support and a second support;
the first support is used for connecting the first pair of tapered dipoles and the combiner and winding the first feeder cable;
the second support is for connecting the second pair of tapered dipoles with the combiner and for winding the second feeder cable.
4. The antenna of claim 1, further comprising a joint mounting base support and a joint mounting base;
the joint mounting base support is used for connecting the second pair of tapered dipoles with the joint mounting base;
the joint mounting base is used for setting the joint.
5. The antenna of claim 4, wherein the antenna further comprises a staple;
the anchor ear is used for connecting the joint installation base and an object to be installed.
6. The antenna of claim 1, wherein the combiner is an LC combiner or an active combiner.
7. The antenna of claim 6, wherein the LC combiner comprises:
a first port for connection with the first feeder cable;
the first filter is used for filtering the signals to obtain signals 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 signals to obtain signals 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 the third filter;
the third port is used for being connected with the third feeder cable;
the third filter is used for filtering the signals to obtain signals conforming to the second frequency band and the third frequency band;
a fourth port for connection with the fourth feeder cable;
the fourth filter is used for filtering the signals to obtain signals 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.
8. The antenna of any of claims 1-7, wherein the first frequency band is 1200-6000MHz, the second frequency band is 20-300MHz, and the third frequency band is 300-1200MHz.
9. The antenna of claim 8, wherein the antenna further comprises an antenna housing.
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| CN202111577848.7A CN114256627B (en) | 2021-12-22 | 2021-12-22 | Ultra-wideband antenna |
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