KR20220142797A - Bandwidth adjustable Omni-directional antenna - Google Patents

Abstract

An embodiment of the present invention relates to an omnidirectional antenna capable of controlling a bandwidth. A technical problem to be solved is to provide an omnidirectional antenna capable of controlling a desired frequency bandwidth by dividing an antenna array. To this end, the present invention discloses an omnidirectional antenna capable of controlling a bandwidth, which comprises: a first antenna cable including a first core wire, a first dielectric surrounding the first core wire, and a first conductor network surrounding a first dielectric wherein the first dielectric protrudes from the first conductor network and the first core wire protrudes from the first dielectric; a second antenna cable including a second core wire, a second dielectric surrounding the second core wire, and a second conductor network surrounding the second dielectric wherein the second dielectric protrudes from the second conductor network and the second core wire protrudes from the second dielectric; a first press socket electrically coupling the second core wire to the first conductor network; a second press socket electrically coupling the first core wire to the second conductor network; and a shrink tube surrounding the first and second press sockets.

Description

Bandwidth adjustable Omni-directional antenna

An embodiment of the present invention relates to an omni-directional antenna with adjustable bandwidth.

Omni-directional antennas are useful for a variety of wireless communication devices because the radiation pattern allows for good transmission and reception from the wireless transceiver. Currently, printed circuit board omni-directional antennas are not widely used due to various defects in the antenna device. In particular, when a uniaxial coaxial cable is applied to a current omni-directional antenna, there is a problem in that a desired frequency band cannot be realized because the antenna impedance and radiation pattern are changed. On the other hand, in the case of an antenna applied to a coaxial cable, there is a problem in that the width of the antenna needs to be widened in order to realize a wide bandwidth.

The above-described information disclosed in the background technology of the present invention is only for improving the understanding of the background of the present invention, and thus may include information that does not constitute the prior art.

An object to be solved according to an embodiment of the present invention is to provide an omni-directional antenna with adjustable bandwidth. In some examples, an object to be solved according to an embodiment of the present invention is to provide an omni-directional antenna capable of adjusting a desired frequency bandwidth by dividing an antenna array. In addition, in some examples, the problem to be solved according to the embodiment of the present invention is to secure performance along with frequency band alignment in a thin space (thickness) when applying an antenna array antenna and SUS (eg, two or more lines) It is to provide an omni-directional antenna that is possible.

An omni-directional antenna with adjustable bandwidth according to an embodiment of the present invention includes: a first core wire; a first dielectric surrounding the first core wire; a first antenna cable including a first conductor network surrounding the first dielectric, the first dielectric protruding from the first conductor network, and the first core wire protruding from the first dielectric; second core wire; a second dielectric surrounding the second core wire; a second antenna cable comprising a second conductor network surrounding the second dielectric, the second dielectric protruding from the second conductor network, and the second core wire protruding from the second dielectric; a first press socket for electrically coupling the second core wire to the first conductor network; a second press socket for electrically coupling the first core wire to the second conductor network; and a shrink tube surrounding the first and second press sockets.

In this way, according to the embodiment of the present invention, it is possible to adjust the desired frequency bandwidth by dividing the antenna array.

The first press socket may wrap the second core wire and the first conductor network together, and the second press socket may wrap the first core wire and the second conductor network together.

In this way, the embodiment of the present invention allows the first and second press sockets to be firmly coupled to the first and second antenna cables.

The first conductor network and the second core wire may be soldered to the first press socket, and the second conductor network and the first core wire may be soldered to the second press socket.

In this way, the embodiment of the present invention allows the first and second press sockets to be firmly coupled to the first and second antenna cables.

The first press socket includes a first cylindrical portion surrounding the first conductor network, a first extension extending from the first cylindrical portion and surrounding the second core wire, a first soldering slit formed in the first cylindrical portion, and the first extension portion It may include a first receiving hole for soldering formed in the second press socket, the second press socket includes a second cylindrical portion surrounding the second conductor network, a second extension portion extending from the second cylindrical portion and surrounding the first core wire, and a second cylinder It may include a second soldering slit formed in the portion, and a second soldering receiving hole formed in the second extending portion.

In this way, the embodiment of the present invention allows the first and second press sockets to be firmly coupled to the first and second antenna cables.

The shrink tube may wrap the first core wire, the first conductor network, the second core wire, the second conductor network, the first press socket, and the second press socket.

In this way, the embodiment of the present invention allows the mutual coupling portion of the first and second antenna cables to be safely protected from the external environment by the shrink tube.

The first core wire, the first conductor network, the second core wire, the second conductor network, the first press socket, and the second press socket may include copper (Cu), aluminum (Al), or stainless steel.

In this way, the embodiment of the present invention ensures sufficient antenna performance.

The first antenna cable may further include a pair of first horizontal metal plates formed in the longitudinal direction on the first conductor network, and the second antenna cable includes a pair of first horizontal metal plates formed on the second conductor network in the longitudinal direction. 2 It may further include a horizontal metal plate.

In this way, the embodiment of the present invention ensures a certain performance along with frequency band alignment under a thin space or thin thickness.

The first antenna cable may further include a pair of first vertical metal plates formed in a direction perpendicular to the pair of first horizontal metal plates in the first conductor network, and the second antenna cable includes a pair of second horizontal metal plates in the second conductor network. It may further include a pair of second vertical metal plates formed in a vertical direction.

In this way, the embodiment of the present invention ensures a certain performance along with frequency band alignment under a thin space or thin thickness.

Widths of the first horizontal metal plate, the first vertical metal plate, the second horizontal metal plate, and the second vertical metal plate may be 1 mm to 5 mm.

In this way, the embodiment of the present invention ensures a certain performance along with frequency band alignment under a thin space or thin thickness.

The first horizontal metal plate, the first vertical metal plate, the second horizontal metal plate, and the second vertical metal plate may include copper (Cu), aluminum (Al), or stainless steel (SUS).

In this way, the embodiment of the present invention ensures a certain performance along with frequency band alignment under a thin space or thin thickness.

An embodiment of the present invention provides an omni-directional antenna with adjustable bandwidth. In some examples, an embodiment of the present invention provides an omni-directional antenna capable of adjusting a desired frequency bandwidth by dividing the antenna array. In addition, in some examples, an embodiment of the present invention provides an omni-directional antenna capable of ensuring performance as well as frequency band alignment in a thin space (thickness) when applying an antenna array antenna and SUS (eg, two or more lines) to provide.

1 is a plan view illustrating an omni-directional antenna capable of adjusting a bandwidth according to an embodiment of the present invention.
2A, 2B, and 2C are views showing first, second, and third cables, a press socket, and a shrink tube, respectively, among the omni-directional antennas capable of adjusting bandwidth according to an embodiment of the present invention.
3A, 3B, and 3C are diagrams illustrating a method of assembling an omni-directional antenna capable of adjusting a bandwidth according to an embodiment of the present invention.
4 is a plan view illustrating an omni-directional antenna capable of adjusting a bandwidth according to an embodiment of the present invention.
5A, 5B, and 5C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of an omni-directional antenna according to a comparative example.
6A, 6B, and 6C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of an omni-directional antenna according to an embodiment.
7A, 7B, and 7C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of an omni-directional antenna according to an embodiment.
8A, 8B and 8C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of an omni-directional antenna according to an embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Examples of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows It is not limited to an Example. Rather, these examples are provided so that this disclosure will be more thorough and complete, and will fully convey the spirit of the invention to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, and the same reference numerals in the drawings refer to the same elements. As used herein, the term “and/or” includes any one and any combination of one or more of those listed items. In addition, in the present specification, "connected" means not only when member A and member B are directly connected, but also when member A and member B are indirectly connected by interposing member C between member A and member B. do.

The terminology used herein is used to describe specific embodiments, not to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly dictates otherwise. Also, as used herein, “comprise, include” and/or “comprising, including” refer to the referenced shapes, numbers, steps, actions, members, elements and/or groups thereof. It specifies the presence and does not exclude the presence or addition of one or more other shapes, numbers, movements, members, elements and/or groups.

Although the terms first, second, etc. are used herein to describe various members, parts, regions, layers and/or parts, these members, parts, regions, layers, and/or parts are limited by these terms, so that It is self-evident that These terms are used only to distinguish one member, component, region, layer or portion from another region, layer or portion. Accordingly, a first member, component, region, layer, or portion discussed below may refer to a second member, component, region, layer or portion without departing from the teachings of the present invention.

Space-related terms such as “beneath”, “below”, “lower”, “above”, and “upper” refer to an element or feature shown in the drawings and It may be used to facilitate understanding of other elements or features. These space-related terms are for easy understanding of the present invention according to various process conditions or usage conditions of the present invention, and are not intended to limit the present invention. For example, if an element or feature in a figure is turned over, an element or feature described as "below" or "below" becomes "above" or "above". Accordingly, "below" is a concept encompassing "above" or "below".

1 is a plan view showing an omni-directional antenna 100 with adjustable bandwidth according to an embodiment of the present invention, and FIGS. 2A, 2B and 2C are omni-directional antennas with adjustable bandwidth according to an embodiment of the present invention ( 100) of the first, second, and third cables 110, 120, 130, the press socket 140, and the shrink tube 180, respectively, are shown in Figs. 3a, 3b and 3c are bandwidth adjustments according to an embodiment of the present invention It is a diagram illustrating a possible assembly method of the omni-directional antenna 100 .

The omni-directional antenna 100 with adjustable bandwidth according to an embodiment of the present invention includes a first antenna cable 110 , a second antenna cable 120 , a first press socket 140 , a second press socket 150 , and a first shrinkable tube 180 .

In some examples, the third antenna cable 130 may be further connected to the rear end of the second antenna cable 120 through the third press socket 160 , the fourth press socket 170 and the second shrink tube 190 . have. Hereinafter, for convenience of understanding, the first and second antenna cables 110 and 120 , the first and second press sockets 140 and 150 , and the first shrinkage tube 180 will be described as the basis.

The first antenna cable 110 may include a first core wire 111 , a first dielectric 112 , and a first conductor network 113 . In some examples, one end of the first core wire 111 and the first conductor network 113 may be electrically connected to the antenna connector 109 . In some examples, the first dielectric 112 may surround the first core wire 111 , and the first conductor network 113 may surround the first dielectric 112 . In some examples, a first insulating coating (not shown) may surround the first conductor network 113 . In some examples, the first dielectric 112 may protrude from the first conductor network 113 at the other end of the first antenna cable 110 (it may be longer), and the first core wire ( 111) may protrude (it may be longer).

The second antenna cable 120 may also include a second core wire 121 , a second dielectric 122 , and a second conductor network 123 . In some examples, the second dielectric 122 may surround the second core wire 121 , and the second conductor network 123 may surround the second dielectric 122 . In some examples, a second insulating coating (not shown) may surround the second conductor network 123 . In some examples, the second dielectric 122 may protrude from the second conductor network 123 at both ends of the second antenna cable 120 (it may be longer), and the second core wire ( 121) may protrude (it may be longer).

In some examples, the length of the first antenna cable 110 and/or the second antenna cable 120 may be equal to the length of a wavelength, half a wavelength, or a quarter wavelength of the frequency of use.

In some examples, the first core wire 111 , the first conductor network 113 , the second core wire 121 , and the second conductor network 123 are provided of copper (Cu), aluminum (Al) and/or stainless steel. can be

In some examples, the first dielectric 112 and the second dielectric 122 may include polyimide (PI), polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), polybutylene terephthalate (PBT), and acrylonitrile-styrene-acrylate (ASA). ), PE (polyethylene), PET (polyethylene terephthalate), PP (polypropylene), BT (Bismaleimide Triazine), Teflon, phenol, may be provided as a plastic resin such as epoxy.

The first press socket 140 allows the second core wire 121 of the second antenna cable 120 to be electrically connected to the first conductor network 113 of the first antenna cable 110 . The second press socket 150 allows the first core wire 111 of the first antenna cable 110 to be electrically connected to the second conductor network 123 of the second antenna cable 120 .

In some examples, the first press socket 140 may wrap the second core wire 121 and the first conductor network 113 together, and the second press socket 150 may include the first core wire 111 and the second conductive wire 111 . The sieve net 123 may be wrapped together.

In some examples, the first conductor network 113 and the second core wire 121 may be respectively soldered to the first press socket 140 , and the second conductor network 123 and the first core wire 111 may be respectively first It can be soldered to the two-press socket 150 . In other words, the first and second press sockets 140 and 150 may electrically connect the first antenna cable 110 and the second antenna cable 120 .

In some examples, the first press socket 140 includes a first cylindrical portion 141 surrounding the first conductor network 113 , and a first extending from the first cylindrical portion 141 and surrounding the second core wire 121 . The extension 142 may include a first soldering slit 143 formed in the first cylindrical portion 141 , and a plurality of first soldering receiving holes 144 formed in the first extending portion 142 . have. In some examples, the first soldering slit 143 may be provided by being cut in the longitudinal direction of the first press socket 140 .

In some examples, the first cylindrical portion 141 and the first conductor network 113 may be electrically connected (by soldering) through the first soldering slit 143 . In some examples, the first extension portion 142 and the second core wire 121 may be electrically connected (by soldering) through the plurality of first soldering receiving holes 143 .

In this way, the first conductor network 113 of the first antenna cable 110 may be electrically connected to the second core wire 121 of the second antenna cable 120 .

In some examples, the diameter of the first cylindrical portion 141 may be the same as or slightly smaller than the diameter of the first conductor network 113 . Accordingly, the first conductor network 113 may be press-fitted to the first cylindrical portion 141 .

In some examples, the diameter of the first extension 142 may be the same as or slightly smaller than the diameter of the second core wire 121 . Accordingly, the second core wire 121 may be press-fitted to the first extension part 142 .

In some examples, the diameter of the first extension portion 142 may be smaller than the diameter of the first cylindrical portion 141 .

In some examples, the second press socket 150 includes a second cylindrical portion 151 surrounding the second conductor network 123 , and a second extending from the second cylindrical portion 151 and surrounding the first core wire 111 . It may include an extension 152 , a first soldering slit 153 formed in the second cylindrical portion 151 , and a plurality of second soldering receiving holes 154 formed in the second extending portion 152 . have. In some examples, the second soldering slit 153 may be provided by being cut in the longitudinal direction of the first press socket 150 .

In some examples, the second cylindrical portion 151 and the second conductor network 123 may be electrically (by soldering) connected through the second soldering slit 153 .

In some examples, the second extension portion 152 and the first core wire 111 may be electrically (by soldering) connected through the plurality of second soldering receiving holes 153 .

In this way, the second conductor network 123 of the second antenna cable 120 may be electrically connected to the first core wire 111 of the first antenna cable 110 .

In some examples, the diameter of the second cylindrical portion 151 may be the same as or slightly smaller than the diameter of the second conductor network 123 . Accordingly, the second conductor network 123 may be press-fitted to the second cylindrical portion 151 .

In some examples, the diameter of the second extension part 152 may be the same as or slightly smaller than the diameter of the first core wire 111 . Accordingly, the first core wire 111 may be press-fitted to the second extension part 152 .

In some examples, the diameter of the second extension portion 152 may be smaller than that of the second cylindrical portion 151 .

In some examples, if the first extension 142 of the first press socket 140 faces downward, the second extension 152 of the second press socket 150 may face upward. Accordingly, the first dielectric 112 (including the first core wire 111 ) and the second dielectric 122 (including the second core wire 121 ) may have a substantially trapezoidal shape and may be maximally spaced apart from each other.

In some examples, the shrink tube 180 includes a first core wire 111 , a first conductor network 113 , a second core wire 121 , a second conductor network 123 , a first press socket 140 , and a second The press socket 150 may be wrapped. In some examples, the shrink tube 180 may shrink when heated. Accordingly, as the shrinkable tube 180 is contracted, the first core wire 111 , the first conductor network 113 , the second core wire 121 , the second conductor network 123 , the first press socket 140 and the second The press socket 150 may be electrically/mechanically isolated from the external environment.

4 is a plan view illustrating an omni-directional antenna 100 capable of adjusting a bandwidth according to an embodiment of the present invention.

As shown in FIG. 4 , the omni-directional antenna 100 with adjustable bandwidth according to an embodiment of the present invention may further include a horizontal metal plate 114 . Here, for convenience of description, a configuration for electrically connecting the first antenna cable 110 and the second antenna cable 120 to each other is not specifically illustrated in the drawings, but may be the same as or similar to the configuration described above. Hereinafter, the first antenna cable 110 to which the horizontal metal plate is attached will be mainly described for convenience of description, but this may be equally applied to the second antenna cable 120 connected to the first antenna cable 110 .

5A, 5B, and 5C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of an omni-directional antenna according to a comparative example.

In a comparative example, the antenna cable may include a core wire, a dielectric surrounding the core wire, a conductor network surrounding the dielectric material, and an insulating coating surrounding the conductor network. In this way, a bandwidth of, for example, 0.87 MHz to 0.9 MHz can be secured based on VSWR 3:1. In addition, it shows an appropriate radiation pattern and gain at 6.51 dBi, 5.76 dBi and 7.13 dBi.

6A, 6B, and 6C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of the omni-directional antenna 100 according to an embodiment of the present invention.

In some examples, the first antenna cable 110 may further include a pair of first horizontal metal plates 114 formed on the first conductor network 113 in an approximately vertical direction in the longitudinal direction, and the second antenna cable 120 . ) may further include a pair of second horizontal metal plates (not shown) formed on the second conductor network 123 in a direction perpendicular to the longitudinal direction.

In some examples, the width of the first and second horizontal plates may be approximately 3 mm. In this way, a bandwidth of, for example, 0.85 MHz to 0.91 MHz can be secured on the basis of VSWR 3:1. Also, good radiation pattern and gain can be secured at 6.29 dBi, 7.26 dBi and 5.84 dBi.

7A, 7B, and 7C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of the omni-directional antenna 100 according to the embodiment.

In some examples, the first antenna cable 110 may further include a pair of first vertical metal plates 115 formed in a longitudinal direction on the first conductor network 113 in a vertical direction, and the second antenna cable 120 . The silver may further include a pair of second vertical metal plates (not shown) formed in the longitudinal direction on the second conductor network 123 .

In some examples, the width of the first and second horizontal plates and the first and second vertical plates may be approximately 3 mm. In this way, on the basis of VSWR 3:1, for example, a bandwidth of 0.83 MHz to 0.91 MHz can be secured. In addition, good radiation pattern and gain can be secured at 6.20 dBi, 7.30 dBi and 5.7 dBi.

8A, 8B, and 8C are cross-sectional views, voltage standing wave ratio (VSWR), radiation patterns, and gains of the omni-directional antenna 100 according to the embodiment.

In some examples, the first antenna cable 110 may further include a pair of first horizontal metal plates 114 formed in the longitudinal direction of the first conductor network 113 in a vertical direction, and the second antenna cable 120 . The silver may further include a pair of second horizontal metal plates (not shown) formed in the longitudinal direction of the second conductor network 123 in a vertical direction.

In some examples, the width of the first and second horizontal plates may be approximately 5 mm. In this way, a bandwidth of, for example, 0.83 MHz to 0.9 MHz can be secured on the basis of VSWR 3:1. In addition, good radiation pattern and gain can be secured at 6.22 dBi, 7.37 dBi and 6.19 dBi.

In some examples, the first horizontal metal plate 114 , the first vertical metal plate 115 , the second horizontal metal plate and/or the second vertical metal plate may be made of copper (Cu), aluminum (Al), or stainless steel.

In this way, the embodiment of the present invention can provide an omni-directional antenna with adjustable bandwidth. In some examples, an embodiment of the present invention may provide an omni-directional antenna capable of adjusting a desired frequency bandwidth by dividing the antenna array. In addition, in some examples, an embodiment of the present invention provides an omni-directional antenna capable of ensuring performance as well as frequency band alignment in a thin space (thickness) when applying an antenna array antenna and SUS (eg, two or more lines) can provide

What has been described above is only one embodiment for implementing the omni-directional antenna with adjustable bandwidth according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the claims below Without departing from the gist of the present invention, it will be said that the technical spirit of the present invention exists to the extent that various modifications can be made by anyone with ordinary knowledge in the field to which the invention pertains.

100; omni-directional antenna
110; a first antenna cable 111; 1st core
112; first dielectric 113; 1st conductor network
114; a first horizontal metal plate 115; first vertical metal plate
109; antenna connector 120; 2nd antenna cable
121; first core wire 122; first dielectric
123; first conductor network 130; 3rd antenna cable
140; a first press socket 141; 1st cylinder
142; first extension 143; Slit for first soldering
144; a first receiving hole for soldering 150; 2nd press socket
151; first cylindrical part 152; first extension
153; slit 154 for second soldering; 2nd soldering hole
160; third press socket 170; 4th press socket
180; first shrink tube 190; 2nd shrink tube

Claims (10)

first core wire; a first dielectric surrounding the first core wire; a first antenna cable including a first conductor network surrounding the first dielectric, the first dielectric protruding from the first conductor network, and the first core wire protruding from the first dielectric;
second core wire; a second dielectric surrounding the second core wire; a second antenna cable comprising a second conductor network surrounding the second dielectric, the second dielectric protruding from the second conductor network, and the second core wire protruding from the second dielectric;
a first press socket for electrically coupling the second core wire to the first conductor network;
a second press socket for electrically coupling the first core wire to the second conductor network; and
An omni-directional antenna with adjustable bandwidth, including a shrink tube surrounding the first and second press sockets. The method of claim 1,
The first press socket wraps the second core wire and the first conductor network together, and the second press socket wraps the first core wire and the second conductive network together, and a large-width adjustable omni-directional antenna. The method of claim 1,
A omni-directional antenna with adjustable bandwidth, wherein the first conductor network and the second core wire are soldered to the first press socket, and the second conductor network and the first core wire are soldered to the second press socket. The method of claim 1,
The first press socket includes a first cylindrical portion surrounding the first conductor network, a first extension extending from the first cylindrical portion and surrounding the second core wire, a first soldering slit formed in the first cylindrical portion, and the first extension portion and a first soldering receiving hole formed in the A bandwidth adjustable omni-directional antenna comprising a second soldering slit formed therein, and a second soldering receiving hole formed in the second extension part. The method of claim 1,
The shrink tube wraps the first core wire, the first conductor network, the second core wire, the second conductor network, the first press socket and the second press socket, and the bandwidth adjustable omni-directional antenna. The method of claim 1,
The first core wire, the first conductor network, the second core wire, the second conductor network, the first press socket and the second press socket are made of copper (Cu), aluminum (Al) or stainless steel, and are non-directional with adjustable bandwidth. antenna. The method of claim 1,
The first antenna cable further includes a pair of first horizontal metal plates formed in the longitudinal direction on the first conductor network in a vertical direction,
The second antenna cable further includes a pair of second horizontal metal plates formed in a longitudinal direction on the second conductor network in a longitudinal direction, a bandwidth adjustable omni-directional antenna. 8. The method of claim 7,
The first antenna cable further includes a pair of first vertical metal plates formed in a direction perpendicular to the pair of first horizontal metal plates in the first conductor network,
The second antenna cable further includes a pair of second vertical metal plates formed in a direction perpendicular to the pair of second horizontal metal plates in the second conductor network, bandwidth adjustable omni-directional antenna. 9. The method of claim 8,
The width of the first horizontal metal plate, the first vertical metal plate, the second horizontal metal plate and the second vertical metal plate is 1mm to 5mm, the bandwidth adjustable omni-directional antenna. 9. The method of claim 8,
The first horizontal metal plate, the first vertical metal plate, the second horizontal metal plate, and the second vertical metal plate include copper (Cu), aluminum (Al) or stainless steel (SUS), a bandwidth adjustable omni-directional antenna.

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