CN114552193A - High-gain broadband printing sleeve antenna - Google Patents
High-gain broadband printing sleeve antenna Download PDFInfo
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- CN114552193A CN114552193A CN202210183927.8A CN202210183927A CN114552193A CN 114552193 A CN114552193 A CN 114552193A CN 202210183927 A CN202210183927 A CN 202210183927A CN 114552193 A CN114552193 A CN 114552193A
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- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 26
- 230000003071 parasitic effect Effects 0.000 claims abstract description 14
- 230000005404 monopole Effects 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- 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
Abstract
The invention relates to a high-gain broadband printing sleeve antenna which comprises a first medium substrate and a second medium substrate, wherein a radiation unit is printed on the first medium substrate, a parasitic unit is printed on the second medium substrate, the radiation unit comprises a step-shaped monopole and a sleeve which is in short connection with the ground, the step-shaped monopole comprises a first connecting part, a second connecting part and a load which are sequentially connected, the widths of the first connecting part, the second connecting part and the load are sequentially increased, a first open groove and a second open groove which are symmetrical in the middle are respectively arranged at two ends of the load, the outermost side heights of the first open groove and the second open groove are respectively larger than the outermost side width, and the parasitic unit comprises twelve crossed metal sheets which are distributed on the surface of the second medium substrate at equal intervals in four rows and three columns. Compared with the prior art, the invention not only can widen the bandwidth, but also can improve the gain on the basis of keeping miniaturization.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a high-gain broadband printed sleeve antenna.
Background
With the rapid development of information networks, wireless communication technology has also come to an explosive age. The antenna plays a most fundamental role in a communication network, not only realizes information transmission, but also can be combined with various devices to meet different communication requirements, so that the requirements on the frequency band, the size and the gain of the antenna are higher and higher.
The gain is used to measure the ability of the antenna to transmit and receive signals in a specific direction, and increasing the gain of the antenna can increase the coverage area of the wireless communication network in a certain direction. Increasing the gain of the antenna under the same conditions increases the distance over which the electromagnetic energy can propagate, or increases the intensity of the radiation from the antenna over the same distance. The broadband antenna can work in a wider frequency band, and can cover the working frequency bands of a plurality of antennas by using a single antenna, so that the number of antennas in a communication system is reduced to reduce the size of equipment, and in addition, the characteristic of the broadband can relieve the increasingly tense frequency band resource requirement. As an important component of communication systems, there is an increasing demand for low-cost, wide-bandwidth, miniaturized, and high-gain printed antennas.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art and to provide a high-gain broadband printed sleeve antenna which can not only widen the bandwidth but also improve the gain while keeping the miniaturization.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a high-gain broadband printing sleeve antenna, includes first medium base plate and second medium base plate, first medium base plate printing has the radiating element, second medium base plate printing has parasitic element, the radiating element includes echelonment monopole and with the sleeve of ground short circuit, the echelonment monopole is including the first connecting portion, second connecting portion and the load that connect gradually, the width grow in proper order of first connecting portion, second connecting portion and load, the both ends of load are equipped with first fluting and the second fluting of symmetry placed in the middle respectively, the outside height of first fluting and second fluting all is greater than outside width.
Further, the ratio of the outermost height to the outermost width of each of the first and second slots is within the range of 10-30.
Further, the first slot and the second slot are both rectangular in shape.
Further, the shape of the load is an ellipse, the first slot and the second slot are both perpendicular to the long axis of the ellipse, and the first slot and the second slot are parallel to each other.
Furthermore, the sleeve comprises a first folded angle part and a second folded angle part which are symmetrically arranged, the first folded angle part and the second folded angle part form a concave structure, and a gap is reserved between the first folded angle part and the second folded angle part.
Further, the height H1 of the first connecting part is within the range of 5.8-6.0mm, and the width W1 is within the range of 0.9-1.1 mm; the height H2 of the second connecting part is within the range of 1.7-1.85mm, and the width W2 is within the range of 12-12.5 mm; the height H3 of the load is within the range of 20-21mm, and the width W3 of the load is within the range of 41.5-42.5 mm; the width W4 of the first open slot and the second open slot is within the range of 0.4-0.6 mm; the overall height H of the first dielectric substrate is within the range of 48-49mm, and the overall width W of the first dielectric substrate is within the range of 41-43 mm;
the overall height H5 of the sleeve is within the range of 16.5-17.5mm, the width W5 of the sleeve is within the range of 37.5-38mm, the top edge gap W6 of the first folded corner part and the second folded corner part is within the range of 15.5-16.5mm, the bottom edge gap W7 of the first folded corner part and the second folded corner part is within the range of 1.5-1.9mm, and the bottom edge height of the first folded corner part and the second folded corner part is within the range of 5.2-5.5 mm.
Furthermore, the number of the crisscross metal sheets is twelve, and the twelve crisscross metal sheets are distributed on the surface of the second dielectric substrate at equal intervals according to four rows and three columns.
Furthermore, the first connecting portion, the second connecting portion and the load are all on the same central line, and the shapes of the first connecting portion and the second connecting portion are both rectangular.
Furthermore, the parasitic unit comprises a plurality of crisscross metal sheets uniformly distributed on the surface of the second dielectric substrate, each crisscross metal sheet comprises a first rectangular part and a second rectangular part, the first rectangular part and the second rectangular part are both rectangular, and the central points of the first rectangular part and the second rectangular part are overlapped and perpendicular to each other.
Furthermore, the overall height h of the second dielectric substrate is within the range of 48-49mm, the overall width w of the second dielectric substrate is within the range of 39-41mm, the overall height h5 of the crisscross metal sheets is within the range of 9-9.4mm, the width w5 of the first rectangular part is within the range of 4.8-5.2mm, the transverse spacing L1 of two adjacent crisscross metal sheets is within the range of 10-12mm, and the longitudinal spacing L2 of the two adjacent crisscross metal sheets is within the range of 10-12 mm.
Compared with the prior art, the invention has the following advantages:
(1) the invention adopts a printed antenna mode, the coaxial feed is connected with the stepped monopole, and the monopole is provided with a slotted elliptical top load, thereby improving the expansion bandwidth and keeping the miniaturization of the antenna.
(2) The parasitic element above the printed antenna can not only expand the bandwidth, but also improve the gain of the antenna.
Drawings
Fig. 1 is a front view of a radiating element of a high gain broadband printed sleeve antenna provided in an embodiment of the present invention;
fig. 2 is a diagram of the dimensions of the radiating element elements of a high-gain broadband printed sleeve antenna provided in an embodiment of the present invention;
FIG. 3 is a sleeve size diagram of a high gain broadband printed sleeve antenna provided in an embodiment of the present invention;
FIG. 4 is a front view of a parasitic element of a high gain broadband printed sleeve antenna provided in an embodiment of the present invention;
fig. 5 is a gain diagram of a printed slot antenna loaded with parasitic elements according to an embodiment of the present invention;
fig. 6 is a schematic voltage standing wave ratio diagram of a printed slot antenna loaded with a parasitic element according to an embodiment of the present invention;
in the figure, 1, a first dielectric substrate, 2, a radiating element, 201, a first folding angle part, 202, a second folding angle part, 203, a first connecting part, 204, a second connecting part, 205, a load, 206, a first slot, 207, a second slot, 3, a second dielectric substrate, 4, a parasitic element, 401 and a crisscross metal sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Example 1
As shown in fig. 1 and 2, the present embodiment provides a high-gain broadband printed sleeve antenna, which includes a first dielectric substrate 1 and a second dielectric substrate 3, where the first dielectric substrate 1 is printed with a radiation unit 2, the second dielectric substrate 3 is printed with a parasitic unit 4, the radiation unit 2 includes a stepped monopole and a sleeve short-circuited to ground, the stepped monopole includes a first connection portion 203, a second connection portion 204, and a load 205 that are connected in sequence, widths of the first connection portion 203, the second connection portion 204, and the load 205 become larger in sequence, two ends of the load 205 are respectively provided with a first slot 206 and a second slot 207 that are symmetrical in the middle, and outermost heights of the first slot 206 and the second slot 207 are both greater than an outermost width.
Preferably, the ratio of the outermost height to the outermost width of each of the first slot 206 and the second slot 207 is within the range of 10-30.
As an alternative embodiment, the first slot 206 and the second slot 207 are both rectangular, the load 205 is elliptical, the first slot 206 and the second slot 207 are both perpendicular to the long axis of the ellipse, the first slot 206 and the second slot 207 are parallel to each other, the first connection portion 203, the second connection portion 204, and the load 205 are all on the same center line, and the first connection portion 203 and the second connection portion 204 are both rectangular.
As shown in fig. 3, the sleeve includes a first folded corner portion 201 and a second folded corner portion 202 symmetrically arranged, the first folded corner portion 201 and the second folded corner portion 202 form a concave structure, and a gap is left between the first folded corner portion 201 and the second folded corner portion 202.
As shown in fig. 4, as a preferred embodiment, the parasitic element 4 includes a plurality of crisscross metal strips 401 uniformly distributed on the surface of the second dielectric substrate 3, and each crisscross metal strip 401 includes a first rectangular portion and a second rectangular portion, both of which are rectangular, and the central points of the first rectangular portion and the second rectangular portion are overlapped and perpendicular to each other.
Most preferably, the number of the crisscross metal pieces 401 is twelve, and twelve crisscross metal pieces 401 are distributed on the surface of the second dielectric substrate 3 at equal intervals in four rows and three columns.
In this embodiment, the parasitic elements are formed by 12 crisscross metal sheets printed on the dielectric substrate, each crisscross metal sheet is formed by two rectangles with a width W5 and a height H5, the centers of the two rectangles are overlapped, and the 12 crisscross metal sheets are distributed on the dielectric substrate in four rows and three columns, with a column interval L1 and a row interval L2.
Preferred embodiments can be obtained by combining the above preferred embodiments, and an optimum embodiment can be obtained by combining all the embodiments,
in the preferred embodiment, the height H1 of the first connection portion 203 is within the range of 5.8-6.0mm, and the width W1 is within the range of 0.9-1.1 mm; the height H2 of the second connecting part 204 is within the range of 1.7-1.85mm, and the width W2 is within the range of 12-12.5 mm; the height H3 of the load 205 is within the range of 20-21mm, and the width W3 is within the range of 41.5-42.5 mm; the width W4 of the first slot 206 and the second slot 207 is within the range of 0.4-0.6 mm; the overall height H of the first dielectric substrate 1 is within the range of 48-49mm, and the overall width W is within the range of 41-43 mm;
the overall height H5 of the sleeve is within the range of 16.5-17.5mm, the width W5 is within the range of 37.5-38mm, the top edge gap W6 of the first folded part 201 and the second folded part 202 is within the range of 15.5-16.5mm, the bottom edge gap W7 is within the range of 1.5-1.9mm, and the bottom edge height is within the range of 5.2-5.5 mm.
The overall height h of the second dielectric substrate 3 is within the range of 48-49mm, the overall width w is within the range of 39-41mm, the overall height h5 of the crisscross metal pieces 401 is within the range of 9-9.4mm, the width w5 of the first rectangular part is within the range of 4.8-5.2mm, the transverse spacing L1 of two adjacent crisscross metal pieces 401 is within the range of 10-12mm, and the longitudinal spacing L2 is within the range of 10-12 mm.
More preferably, the height H1 of the first connecting portion 203 is within 5.93mm, and the width W1 is 1.00 mm; the height H2 of the second connection portion 204 is 17.87mm, and the width W2 is 12.18 mm; the height H3 of load 205 is within 20.50mm, and the width W3 is 42 mm; the width W4 of the first slot 206 and the second slot 207 is 0.51 mm; the overall height H of the first dielectric substrate 1 is 48.30mm, and the overall width W is 42.80 mm;
the overall sleeve height H5 is 17.01mm, the width W5 is 37.71mm, the top edge gap W6 of the first and second folded portions 201, 202 is 16.00mm, the bottom edge gap W7 is 1.70mm, and the bottom edge height H6 is 5.37 mm.
The overall height h of the second dielectric substrate 3 is 48.30mm, the overall width w is 40.00mm, the overall height h5 of the cross-shaped metal pieces 401 is 9.20mm, the width w5 of the first rectangular portion is 5.00mm, and the transverse pitch L1 and the longitudinal pitch L2 of two adjacent cross-shaped metal pieces 401 are 11.00mm and 11.00mm, respectively.
The gain effect of the high-gain broadband printed sleeve antenna obtained by the optimal embodiment is shown in fig. 5, and the gain is improved; the voltage standing wave ratio is shown in fig. 6, can realize a wider bandwidth, and belongs to an ultra-wideband antenna.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The high-gain broadband printed sleeve antenna comprises a first medium substrate (1) and a second medium substrate (3), wherein a radiation unit (2) is printed on the first medium substrate (1), a parasitic unit (4) is printed on the second medium substrate (3), and the high-gain broadband printed sleeve antenna is characterized in that the radiation unit (2) comprises a step-shaped monopole and a sleeve which is short-circuited with the ground, the step-shaped monopole comprises a first connecting portion (203), a second connecting portion (204) and a load (205) which are sequentially connected, the widths of the first connecting portion (203), the second connecting portion (204) and the load (205) are sequentially increased, a first notch (206) and a second notch (207) which are symmetrical in the middle are respectively arranged at two ends of the load (205), and the outermost heights of the first notch (206) and the second notch (207) are respectively greater than the outermost width.
2. A high gain broadband printed sleeve antenna according to claim 1, wherein the ratio of the outermost height to the outermost width of the first slot (206) and the second slot (207) is in the range of 10-30.
3. A high gain broadband printed sleeve antenna according to claim 1, wherein said first slot (206) and said second slot (207) are both rectangular in shape.
4. A high gain wideband printed sleeve antenna according to claim 3, characterised in that the load (205) has the shape of an ellipse, the first slot (206) and the second slot (207) are perpendicular to the major axis of the ellipse, and the first slot (206) and the second slot (207) are parallel to each other.
5. A high gain broadband printed sleeve antenna according to claim 4, wherein the sleeve comprises a first folded corner portion (201) and a second folded corner portion (202) symmetrically arranged, the first folded corner portion (201) and the second folded corner portion (202) form a concave structure, and a gap is left between the first folded corner portion (201) and the second folded corner portion (202).
6. A high gain broadband printed sleeve antenna according to claim 5, wherein the first connection (203) has a height H1 in the range of 5.8-6.0mm and a width W1 in the range of 0.9-1.1 mm; the height H2 of the second connecting part (204) is within the range of 1.7-1.85mm, and the width W2 is within the range of 12-12.5 mm; the height H3 of the load (205) is within the range of 20-21mm, and the width W3 is within the range of 41.5-42.5 mm; the width W4 of the first slot (206) and the second slot (207) is within the range of 0.4-0.6 mm; the overall height H of the first dielectric substrate (1) is within the range of 48-49mm, and the overall width W is within the range of 41-43 mm;
the height H5 of the whole sleeve is within the range of 16.5-17.5mm, the width W5 is within the range of 37.5-38mm, the top edge gap W6 of the first folded corner part (201) and the second folded corner part (202) is within the range of 15.5-16.5mm, the bottom edge gap W7 is within the range of 1.5-1.9mm, and the bottom edge height is within the range of 5.2-5.5 mm.
7. A high gain broadband printed sleeve antenna according to claim 1, wherein the first connection portion (203), the second connection portion (204) and the load (205) are all on the same center line, and the first connection portion (203) and the second connection portion (204) are rectangular in shape.
8. A high-gain broadband printed sleeve antenna according to claim 1, wherein the parasitic element (4) comprises a plurality of criss-cross metal strips (401) uniformly distributed on the surface of the second dielectric substrate (3), the criss-cross metal strips (401) comprise a first rectangular portion and a second rectangular portion, the first rectangular portion and the second rectangular portion are rectangular, and the central points of the first rectangular portion and the second rectangular portion are overlapped and perpendicular to each other.
9. A high gain broadband printed sleeve antenna according to claim 8, wherein the number of said crisscross metal strips (401) is twelve, and twelve crisscross metal strips (401) are equally spaced in four rows and three columns on the surface of said second dielectric substrate (3).
10. A high gain broadband printed sleeve antenna according to claim 9, wherein the overall height h of the second dielectric substrate (3) is within the range of 48-49mm, the overall width w is within the range of 39-41mm, the overall height h5 of the criss-cross shaped metal sheets (401) is within the range of 9-9.4mm, the width w5 of the first rectangular portion is within the range of 4.8-5.2mm, the transverse spacing L1 of two adjacent criss-cross shaped metal sheets (401) is within the range of 10-12mm, and the longitudinal spacing L2 is within the range of 10-12 mm.
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| CN202210183927.8A CN114552193A (en) | 2022-02-28 | 2022-02-28 | High-gain broadband printing sleeve antenna |
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| CN202210183927.8A CN114552193A (en) | 2022-02-28 | 2022-02-28 | High-gain broadband printing sleeve antenna |
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Inventor after: Luo Yang Inventor after: Sun Yijin Inventor after: Wang Yufeng Inventor after: Zhang Qian Inventor before: Sun Yijin Inventor before: Luo Yang Inventor before: Wang Yufeng Inventor before: Zhang Qian |