CN110690565A - Home-shaped circularly polarized patch antenna - Google Patents
Home-shaped circularly polarized patch antenna Download PDFInfo
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- CN110690565A CN110690565A CN201910747732.XA CN201910747732A CN110690565A CN 110690565 A CN110690565 A CN 110690565A CN 201910747732 A CN201910747732 A CN 201910747732A CN 110690565 A CN110690565 A CN 110690565A
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The invention relates to the technical field of antennas, in particular to a 'home' -shaped circularly polarized patch antenna which comprises a grounding plate and a dielectric laminate, wherein the grounding plate and the dielectric laminate are parallel to each other; a medium layer plate is arranged above the grounding plate, the top of the medium layer plate is provided with a metal sheet A, and the bottom of the medium layer plate is provided with a metal sheet B; a 3D L-shaped probe is arranged between the grounding plate and the dielectric layer plate; the 3D L-shaped probe consists of a vertical rod and two horizontal rods with the same length, the end parts of one ends of the two horizontal rods are mutually perpendicular and fixedly connected, and the top part of the vertical rod is fixedly connected with the common end part of the two horizontal rods; each horizontal rod is parallel to the dielectric layer plate, and the vertical rod is perpendicular to the grounding plate; the grounding plate is provided with a through hole, and the lower end of the straight rod penetrates through the through hole to be connected with a coaxial connector arranged at the bottom of the grounding plate; the grounding plate and the dielectric layer plate are both square and have the same side length; the metal sheet A is in a 'home' shape; the invention has simple structure, low cost, beautiful appearance, safety and reliability.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a 'home' -shaped circularly polarized patch antenna.
Background
The circularly polarized patch antenna means that the direction and magnitude of a magnetic field intensity vector in a broadside electromagnetic field radiated by a planar antenna are not fixed in space, and change along with time and form an approximately circular track in a certain plane.
With the increase of the density of the antenna, the antenna is visible everywhere, although great convenience is brought to people, people worry about the harm of electromagnetic waves to human bodies, and some people even suffer from electromagnetic anxiety disorder due to the fact that the worry brings discomfort caused by mental stress, the personal health and life are affected, and in addition, the attractiveness of the building environment is damaged.
Disclosure of Invention
According to the defects of the prior art, the invention provides the 'home' -shaped circularly polarized patch antenna which is simple in structure, low in cost, attractive in appearance, safe and reliable.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a 'home' -shaped circularly polarized patch antenna comprises a ground plate and a dielectric laminate, wherein the ground plate and the dielectric laminate are parallel to each other; a medium layer plate is arranged above the grounding plate, the top of the medium layer plate is provided with a metal sheet A, and the bottom of the medium layer plate is provided with a metal sheet B;
a 3D L-shaped probe is arranged between the grounding plate and the dielectric layer plate;
the 3D L-shaped probe is composed of a vertical rod and two horizontal rods with the same length, the end parts of one ends of the two horizontal rods are mutually perpendicular and fixedly connected, and the top of the vertical rod is fixedly connected with the common end part of the two horizontal rods;
each horizontal rod is parallel to the dielectric layer plate, and the vertical rod is perpendicular to the grounding plate;
the ground plate is provided with a through hole, and the lower end of the vertical rod penetrates through the through hole to be connected with a coaxial connector arranged at the bottom of the ground plate;
the metal sheet A is in a 'home' shape and is of a completely asymmetric patch structure;
the metal sheet B is rectangular;
the length (L2) of the metal sheet B is 43.3 mm, and the width (L1) of the metal sheet B is 27.3 mm;
the distance (L8) between the bottom of the horizontal bar and the top of the ground plate is 8.5 millimeters;
the length (L3) of each horizontal rod is 8.3 mm;
the radius of the horizontal rod is 0.5 mm;
the radius of the vertical rod is 0.5 mm;
taking the central point b of the minimum circumscribed rectangle (W2W 3) of the metal sheet A shaped like the Chinese character 'jia' as the coordinate origin,
the outline of the home-shaped metal sheet A consists of 73 points, and the coordinates of each point are as follows in sequence:
the first point coordinates (x, y) are: 0.9, 40;
the second point coordinates (x, y) are: 1.4, 36.8;
the third point coordinates (x, y) are: 3.7, 29.9;
the fourth point coordinates (x, y) are: 34.9, 29.9;
the fifth point coordinates (x, y) are: 34.9, 13.6;
the sixth point coordinate (x, y) is: 27.9, 13.5;
the seventh point coordinate (x, y) is: 27.7, 24.2;
the eighth point coordinate (x, y) is: -30.8, 24.2;
the ninth point coordinate (x, y) is: -30.8, 11.5;
the tenth point coordinate (x, y) is: -37.8, 11.5;
the eleventh point coordinate (x, y) is: -37.8, 29.9;
the twelfth point coordinate (x, y) is: -4.3, 30;
the thirteenth point coordinate (x, y) is: -7.3, 37.9;
the fourteenth point coordinate (x, y) is: -5.1, 38.3;
the coordinates (x, y) of the fifteenth point are: -23.1, 19;
the sixteenth point coordinate (x, y) is: 21.9, 19.3;
the seventeenth point coordinate (x, y) is: 21.9, 11.4;
the eighteenth point coordinate (x, y) is: 1.8, 11.4;
the nineteenth point coordinate (x, y) is: -4.6, 5.3;
the twentieth coordinate (x, y) is: 2.5, -1.9;
the twenty-first coordinate (x, y) is: 5.5, -6.5;
the twenty-second point coordinate (x, y) is: 11.3, -3;
the twenty-third point coordinates (x, y) are: 17, 0.9;
the twenty-fourth point coordinate (x, y) is: 21.8, 5.8;
the twenty-fifth point coordinate (x, y) is: 23.3, 8;
the twenty-sixth point coordinate (x, y) is: 30.3, 1.8;
the twenty-seventh point coordinate (x, y) is: 24, -1.1;
the twenty-eighth point coordinate (x, y) is: 18.2, -5.1;
the twenty-ninth point coordinate (x, y) is: 19.5, -9.3;
the thirtieth point coordinate (x, y) is: 21, -12.5;
the thirty-th point coordinate (x, y) is: 25.4, -19.3;
the thirty-second point coordinate (x, y) is: 28.5, -21.9;
the thirty-third point coordinate (x, y) is: 34.5, -25.6;
the thirty-fourth point coordinate (x, y) is: 39.6, -28;
the thirty-fifth point coordinate (x, y) is: 37, -30.1;
the thirty-sixth point coordinate (x, y) is: 33.4, -34.7;
the thirty-seventh point coordinate (x, y) is: 27.1, -30.1;
the thirty-eighth point coordinate (x, y) is: 22.7, -26.1;
the thirty-ninth point coordinate (x, y) is: 17.7, -19.6;
the coordinates (x, y) of the fortieth point are: 14.1, -11.8;
the fortieth point coordinate (x, y) is: 13.1, -8.4;
coordinates (x, y) of the forty-second point are: 7.8, -11.4;
the coordinates (x, y) of the fortieth three points are: 10.7, -20.7;
coordinates (x, y) of the forty-fourth point are: 9.5, -24.7;
coordinates (x, y) of the forty-fifth point are: 9.2, -28.6;
coordinates (x, y) of the forty-sixth point are: 7.7, -33;
coordinates (x, y) of the forty-seventh point are: 4.4, -35.9;
coordinates (x, y) of the forty-eighth point are: -4.6, -39.6;
coordinates (x, y) of the forty-ninth point are: -7.1, -40;
the fifty-point coordinates (x, y) are: -10.3, -32.6;
the fifty-th point coordinate (x, y) is: -2.3, -31.7;
the fifty-second point coordinates (x, y) are: 1.2, -30.1;
the fifty-th point coordinate (x, y) is: 2.7, -20.9;
the fifty-fourth point coordinate (x, y) is: 2, -16.1;
the fifty-fifth point coordinates (x, y) are: -14.5, -27.6;
the fifty-sixth point coordinate (x, y) is: -34.4, -38.3;
coordinates (x, y) of the fifty-seventh point are: -39.6, -32.3;
the fifty-eighth point coordinates (x, y) are: -28, -28;
the fifty-ninth point coordinate (x, y) is: -6.1, -15.7;
sixty-point coordinates (x, y) are: 0, -9.9;
sixty-th point coordinates (x, y) are: -2.7, -6.2;
sixty-second point coordinates (x, y) are: -23.8, -19.6;
the sixty-third point coordinates (x, y) are: -33.9, -24.1;
sixty-fourth coordinates (x, y) are: -38.8, -18.5;
the sixty-five point coordinates (x, y) are: -19.9, -11.2;
sixty-sixth point coordinates (x, y) are: -6.3, -1.8;
sixty-seventh point coordinates (x, y) are: -9.6, 1.9;
sixty-eight point coordinates (x, y) are: -34.3, -10;
the sixty-ninth point coordinate (x, y) is: -39.1, -3.4;
the seventy point coordinates (x, y) are: -26.6, 0.2;
the seventy-first point coordinate (x, y) is: -11.7, 7.5;
the seventy-second point coordinates (x, y) are: -7.1, 11.3;
the seventy-third point coordinates (x, y) are: -23.1, 11.2;
the position of the metal sheet B is positioned by seventy-fourth points, and coordinates (x, y) of the seventy-fourth points are as follows: -17,12.5.
Further, sheetmetal A sets up on the medium plywood copper through the sculpture mode or sets up on medium plywood aluminum plate through the sculpture mode, sheetmetal B sets up on the medium plywood copper through the sculpture mode or sets up on medium plywood aluminum plate through the sculpture mode.
Furthermore, the metal sheet A is made of copper or aluminum, and the metal sheet B is made of copper or aluminum.
Furthermore, the grounding plate and the dielectric layer plate are both square, and the side length is 120 mm.
Further, the ground plate is formed of an aluminum plate or a copper plate.
The invention has the following beneficial effects: (1) the invention provides a Chinese character shape antenna which takes a Chinese character 'home' as the geometric shape of the antenna and realizes the double-frequency requirements of WiMAX (2.6G) wireless broadband and 3.4GHz 5G wireless network, thus having strong compatibility; (2) the invention improves the L-shaped probe, adopts the 3D L-shaped probe, and feeds by taking the rectangular metal plate B on the lower surface of the dielectric laminate as an auxiliary, compared with the L-shaped probe in the prior art, the method increases the parallel capacitance, enhances the capacitance between the probe and the patch antenna, improves the reflection coefficient, is easier to match with the impedance of the patch antenna, and ensures that the Chinese character patch without a symmetrical structure of a Chinese character realizes a broadband effect; (3) the antenna has a geometric structure of the appearance of a Chinese character 'home', is small in size, adopts a single-layer dielectric laminate and a low-cost aluminum plate or copper plate as a grounding plate, and has a simple structure and low cost, and a 'home' -shaped antenna main body is carved on a metal layer of the dielectric laminate; (4) the 'home' shape antenna takes a 'home' shape in Chinese characters as an original shape, fully utilizes the stroke structure, realizes the artistic design of the antenna on the premise of meeting the performance requirement of the antenna, combines the art and the science and technology, integrates the art into the antenna design and expands the design concept of the antenna; (5) the antenna of the invention realizes the 'stealth' function of the antenna and further spreads the spirit of China and Chinese character culture.
The invention has the following advantageous features:
1. the invention realizes the dual-band application of the artistic antenna;
2. the widths of the left and right circularly polarized half-power wave beams of the 2.6GHz and 3.4GHz frequency bands of the antenna are respectively 58.6 degrees and 36.7 degrees;
3. the effective working frequency (the axial ratio is less than 3dB, the voltage standing wave ratio is less than 2.0, and the gain is more than 5dBi c) is 2.59GHz-2.61GHz and 3.38GHz-3.42GHz, and the bandwidth is respectively 0.03GHz and 0.04 GHz;
4. in the frequency band ranges of 2.59GHz-2.61GHz and 3.38GHz-3.42GHz, good left and right circular polarization performance coverage can be realized;
5. the impedance matching is good in the frequency band ranges of 2.59GHz-2.61GHz and 3.38GHz-3.42 GHz;
6. in the frequency band range of 2.59GHz-2.61GHz, the maximum left and right circular polarization gains of 6.78dBi can be realized;
7. in the frequency band range of 3.38GHz-3.42GHz, the maximum left and right circular polarization gains of 5.29dBi can be realized;
8. the average beam downtilt angle of the antenna is 19 degrees;
9. the invention realizes the antenna of the asymmetrical patch structure;
10. the antenna adopts a copper or aluminum ground plate, a single-layer dielectric layer plate and a 3D L-shaped probe, so that the radiation of the antenna is enhanced, the multi-band application is realized, the manufacturing work is simple, the materials are easy to obtain, and the cost of the antenna is low;
11. the antenna has a 'home' artistic appearance, can effectively realize 'stealth' for the antenna, is particularly suitable for meeting halls, exhibition halls and other public places, and can avoid the fear psychology of electromagnetic sensitive people to the antenna;
12. the antenna has the shape of Chinese characters, and can play a positive role in promoting the propagation of Chinese culture by being popularized and installed in places such as a foreign embassy, a foreign enterprise, a foreign hotel and the like.
Drawings
FIG. 1 is a schematic top view of the overall structure of a "Home" -shaped circularly polarized antenna according to the present invention;
FIG. 2 is an enlarged schematic view of the main structure of the antenna in the shape of "Home";
FIG. 3 is a schematic structural diagram of a metal sheet B according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of the 3D "L" -FEED;
FIG. 5 is a schematic diagram of an antenna structure in front view;
fig. 6 is a simulation diagram of the reflection coefficient S11 of the antenna according to the embodiment of the present invention;
FIG. 7 is a simulation diagram of Axial Ratio (Axial Ratio) and Gain (Gain) of an antenna according to an embodiment of the present invention;
FIG. 8 is a 2.6GHz linear radiation pattern according to an embodiment of the present invention;
FIG. 9 is a 3.4GHz linear radiation pattern according to an embodiment of the present invention;
in the figure:
taking the central point b of the minimum circumscribed rectangle (W2 multiplied by W3) of the 'Home' -shaped antenna as the origin of coordinates;
w1 denotes the area-the dielectric layer plate of the antenna;
l6 label area-body part of "home", material: aluminum or copper;
l9 denotes the area-ground plate, with the same side length as the dielectric layer plate, material: aluminum or copper;
43-point ID structure/L3 labeled region-3D "L" shaped probe, material: copper;
L1/L2 mark area-lower surface feed structure of dielectric laminate, i.e. metal sheet B, material: aluminum or copper;
100. the device comprises a dielectric layer plate 101, a metal sheet A102, a metal sheet B200, a ground plate 201, a coaxial connector 300, a 3D L-shaped probe 301, a horizontal rod 302 and a vertical rod.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The first embodiment is as follows:
the invention is described in detail below with reference to the figures and examples:
the curves in the drawings illustrate:
s11, antenna reflection coefficient;
frequency: frequency;
AR is axial ratio;
LCR is a left-handed circularly polarized wave;
RCP is right-handed circularly polarized wave;
gain: gain;
as shown in fig. 1 to 8, the circular polarization patch antenna in a shape like a Chinese character 'jia' according to the present invention includes a ground plate 200 and a dielectric layer plate 100, wherein the ground plate 200 and the dielectric layer plate 100 are parallel to each other; a dielectric laminate 100 is arranged above the grounding plate 200, a metal sheet A101 is arranged at the top of the dielectric laminate 100, and a metal sheet B102 is arranged at the bottom of the dielectric laminate 100;
a 3D L-shaped probe 3 is arranged between the grounding plate 200 and the dielectric laminate 100;
the 3D L-shaped probe 3 is composed of a vertical rod 302 and two horizontal rods 301 with the same length, one end parts of the two horizontal rods 301 are mutually perpendicular and fixedly connected, and the top part of the vertical rod 302 is fixedly connected with the common end part of the two horizontal rods 301;
each horizontal rod 301 is parallel to the dielectric layer plate 100, and the vertical rod 302 is perpendicular to the ground plate 200;
the grounding plate 200 is provided with a through hole, and the lower end of the vertical rod 302 passes through the through hole and is connected with the coaxial connector 201 arranged at the bottom of the grounding plate 200;
the grounding plate 200 and the dielectric laminate 100 are both square and have the same side length;
the metal sheet A101 is in a 'home' shape and is of a completely asymmetric patch structure;
the metal sheet B102 is rectangular;
the metal sheet B102 has a length (L2) of 43.3 mm and a width (L1) of 27.3 mm;
the distance (L8) between the bottom of the horizontal bar 301 and the top of the ground plate 200 is 8.5 mm;
the length (L3) of each horizontal bar 301 is 8.3 mm; the radius of the horizontal rod 301 is 0.5 mm, and the horizontal rod is made of metal copper;
the radius of the vertical rod 302 is 0.5 mm, and the vertical rod is made of metal copper;
taking the central point b of the minimum circumscribed rectangle (W2W 3) of the metal sheet A101 in the shape of the Chinese character 'jia' as the coordinate origin,
the outline of the home-shaped metal sheet A101 is composed of 73 points, and the coordinates of each point are as follows:
the first point coordinates (x, y) are: 0.9, 40;
the second point coordinates (x, y) are: 1.4, 36.8;
the third point coordinates (x, y) are: 3.7, 29.9;
the fourth point coordinates (x, y) are: 34.9, 29.9;
the fifth point coordinates (x, y) are: 34.9, 13.6;
the sixth point coordinate (x, y) is: 27.9, 13.5;
the seventh point coordinate (x, y) is: 27.7, 24.2;
the eighth point coordinate (x, y) is: -30.8, 24.2;
the ninth point coordinate (x, y) is: -30.8, 11.5;
the tenth point coordinate (x, y) is: -37.8, 11.5;
the eleventh point coordinate (x, y) is: -37.8, 29.9;
the twelfth point coordinate (x, y) is: -4.3, 30;
the thirteenth point coordinate (x, y) is: -7.3, 37.9;
the fourteenth point coordinate (x, y) is: -5.1, 38.3;
the coordinates (x, y) of the fifteenth point are: -23.1, 19;
the sixteenth point coordinate (x, y) is: 21.9, 19.3;
the seventeenth point coordinate (x, y) is: 21.9, 11.4;
the eighteenth point coordinate (x, y) is: 1.8, 11.4;
the nineteenth point coordinate (x, y) is: -4.6, 5.3;
the twentieth coordinate (x, y) is: 2.5, -1.9;
the twenty-first coordinate (x, y) is: 5.5, -6.5;
the twenty-second point coordinate (x, y) is: 11.3, -3;
the twenty-third point coordinates (x, y) are: 17, 0.9;
the twenty-fourth point coordinate (x, y) is: 21.8, 5.8;
the twenty-fifth point coordinate (x, y) is: 23.3, 8;
the twenty-sixth point coordinate (x, y) is: 30.3, 1.8;
the twenty-seventh point coordinate (x, y) is: 24, -1.1;
the twenty-eighth point coordinate (x, y) is: 18.2, -5.1;
the twenty-ninth point coordinate (x, y) is: 19.5, -9.3;
the thirtieth point coordinate (x, y) is: 21, -12.5;
the thirty-th point coordinate (x, y) is: 25.4, -19.3;
the thirty-second point coordinate (x, y) is: 28.5, -21.9;
the thirty-third point coordinate (x, y) is: 34.5, -25.6;
the thirty-fourth point coordinate (x, y) is: 39.6, -28;
the thirty-fifth point coordinate (x, y) is: 37, -30.1;
the thirty-sixth point coordinate (x, y) is: 33.4, -34.7;
the thirty-seventh point coordinate (x, y) is: 27.1, -30.1;
the thirty-eighth point coordinate (x, y) is: 22.7, -26.1;
the thirty-ninth point coordinate (x, y) is: 17.7, -19.6;
the coordinates (x, y) of the fortieth point are: 14.1, -11.8;
the fortieth point coordinate (x, y) is: 13.1, -8.4;
coordinates (x, y) of the forty-second point are: 7.8, -11.4;
the coordinates (x, y) of the fortieth three points are: 10.7, -20.7;
coordinates (x, y) of the forty-fourth point are: 9.5, -24.7;
coordinates (x, y) of the forty-fifth point are: 9.2, -28.6;
coordinates (x, y) of the forty-sixth point are: 7.7, -33;
coordinates (x, y) of the forty-seventh point are: 4.4, -35.9;
coordinates (x, y) of the forty-eighth point are: -4.6, -39.6;
coordinates (x, y) of the forty-ninth point are: -7.1, -40;
the fifty-point coordinates (x, y) are: -10.3, -32.6;
the fifty-th point coordinate (x, y) is: -2.3, -31.7;
the fifty-second point coordinates (x, y) are: 1.2, -30.1;
the fifty-th point coordinate (x, y) is: 2.7, -20.9;
the fifty-fourth point coordinate (x, y) is: 2, -16.1;
the fifty-fifth point coordinates (x, y) are: -14.5, -27.6;
the fifty-sixth point coordinate (x, y) is: -34.4, -38.3;
coordinates (x, y) of the fifty-seventh point are: -39.6, -32.3;
the fifty-eighth point coordinates (x, y) are: -28, -28;
the fifty-ninth point coordinate (x, y) is: -6.1, -15.7;
sixty-point coordinates (x, y) are: 0, -9.9;
sixty-th point coordinates (x, y) are: -2.7, -6.2;
sixty-second point coordinates (x, y) are: -23.8, -19.6;
the sixty-third point coordinates (x, y) are: -33.9, -24.1;
sixty-fourth coordinates (x, y) are: -38.8, -18.5;
the sixty-five point coordinates (x, y) are: -19.9, -11.2;
sixty-sixth point coordinates (x, y) are: -6.3, -1.8;
sixty-seventh point coordinates (x, y) are: -9.6, 1.9;
sixty-eight point coordinates (x, y) are: -34.3, -10;
the sixty-ninth point coordinate (x, y) is: -39.1, -3.4;
the seventy point coordinates (x, y) are: -26.6, 0.2;
the seventy-first point coordinate (x, y) is: -11.7, 7.5;
the seventy-second point coordinates (x, y) are: -7.1, 11.3;
the seventy-third point coordinates (x, y) are: -23.1, 11.2;
the position of the metal sheet B102 is positioned by seventy-fourth points, and coordinates (x, y) of the seventy-fourth points are as follows: -17,12.5.
The coordinate where the central axis of the vertical rod 302 is located is the coordinate (x, y) of the forty-third point, which is: 10.7, -20.7;
further, the metal sheet a101 is arranged on the dielectric laminate 100 copper plate by engraving, and the metal sheet B102 is arranged on the dielectric laminate 100 copper plate by engraving.
Furthermore, the metal sheet A101 and the metal sheet B102 are both copper sheets, and the 3D L-shaped probe is also made of metal copper.
The dielectric laminate 100 of the invention is made of Rogers RO4003C, the thickness is 0.51mm, the dielectric constant is 3.38, the loss tangent is 0.0027, the dielectric laminate 100 and the grounding plate 200 are fixedly connected by not less than four nylon bolts (not shown in the figure) which are always kept parallel, and the nylon bolts are generally arranged at the near edges of the dielectric laminate 100 and the grounding plate 200.
Further, the side of the ground plate 200 is 120 mm.
Further, the ground plate 200 is constituted by a copper plate.
Table 1:
table 1 above is the dimensions of the components of the antenna of the present embodiment, where:
w1 is the side length of the dielectric laminate 100 or the grounding plate 200 with a square structure, and the grounding plate 200 and the dielectric laminate 100 are in the square structure with the same side length;
w2 is the length of the width side of the minimum external rectangle of the 'home' shaped antenna metal sheet A101;
w3 is the length of the long side of the minimum external rectangle of the 'home' shaped antenna metal sheet A101;
l1 is the length of the wide side of the metal sheet B102;
l2 is the length of the long side of the metal sheet B102;
l3 is the length of each horizontal rod 301;
l4 is the diameter of each horizontal rod 301;
l5 is the distance from the top of horizontal bar 301 to the bottom of sheet metal B102;
l6 is the thickness of sheet metal a 101;
l7 is the thickness of sheet metal B102;
l8 is the distance between the bottom of the horizontal bar 301 to the top of the ground plate 200;
l9 is the thickness of the ground plate 200;
l10 is the thickness of the media ply 100.
The invention has the following advantageous features:
1. as shown in fig. 6 and 7, the present invention realizes dual-band application of an artistic antenna;
2. as shown in fig. 8 and 9, the left and right circularly polarized half-power beam widths of the 2.6GHz and 3.4GHz bands of the antenna of the present invention are 58.6 degrees and 36.7 degrees, respectively;
3. as shown in FIG. 7, the effective operating (axial ratio <3dB, voltage standing wave ratio <2.0, gain >5dBi c) frequencies are 2.59GHz-2.61GHz and 3.38GHz-3.42GHz, with bandwidths of 0.03GHz and 0.04GHz, respectively;
4. in the frequency band ranges of 2.59GHz-2.61GHz and 3.38GHz-3.42GHz, good left and right circular polarization performance coverage can be realized;
5. the impedance matching is good in the frequency band ranges of 2.59GHz-2.61GHz and 3.38GHz-3.42 GHz;
6. as shown in FIG. 7, in the frequency band range of 2.59GHz-2.61GHz, the maximum left and right circular polarization gain of 6.78dBi can be realized;
7. as shown in FIG. 7, in the frequency band range of 3.38GHz-3.42GHz, the maximum left and right circular polarization gains of 5.29dBi can be realized;
8. as shown in fig. 8 and 9, the average beam downtilt angle of the antenna is 19 degrees;
9. the invention realizes the antenna of the asymmetrical patch structure;
10. the antenna adopts copper or aluminum as a grounding plate 200, a single-layer dielectric laminate 100 and a 3D L-shaped probe 300, so that the radiation of the antenna is enhanced, the multi-band application is realized, the manufacturing work is simple, the materials are easy to obtain, and the cost of the antenna is low;
11. the antenna has a 'home' artistic appearance, can effectively realize 'stealth' for the antenna, is particularly suitable for meeting halls, exhibition halls and other public places, and can avoid the fear psychology of electromagnetic sensitive people to the antenna;
12. the antenna has the shape of Chinese characters, and can play a positive role in promoting the propagation of Chinese culture by being popularized and installed in places such as a foreign embassy, a foreign enterprise, a foreign hotel and the like.
The invention provides a Chinese character shape antenna which takes a Chinese character 'home' as the geometric shape of the antenna and realizes the double-frequency requirements of WiMAX (2.6G) wireless broadband and 3.4GHz 5G wireless network, thus having strong compatibility; the invention improves the L-shaped probe in the prior art, adopts the 3D L-shaped probe, and feeds by taking the rectangular metal plate B102 on the lower surface of the dielectric laminate as an auxiliary material, and compared with the original L-shaped probe, the method increases the parallel capacitance, enhances the capacitance between the probe and the patch antenna, improves the reflection coefficient, is easier to match with the impedance of the patch antenna, and ensures that the Chinese character-shaped patch with a Chinese character completely without a symmetrical structure realizes a broadband effect.
The antenna has a geometric structure of Chinese character 'home' shape, is small in size, adopts a single-layer dielectric laminate and a low-cost aluminum plate or copper plate as a grounding plate, and has a simple structure and low cost because the 'home' -shaped antenna main body is carved on a metal layer of the dielectric laminate.
The 'home' shape antenna takes a 'home' shape in Chinese characters as an original shape, fully utilizes the stroke structure, realizes the artistic design of the antenna on the premise of meeting the performance requirement of the antenna, combines the art and the science and technology, integrates the art into the antenna design and expands the design concept of the antenna; the antenna of the invention realizes the 'stealth' function of the antenna and further spreads the spirit of China and Chinese character culture.
The above description is an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications, equivalents, and flow changes made by using the contents of the present specification and drawings, or applied directly or indirectly to other related technical fields are included in the scope of the present invention.
Claims (5)
1. A 'home' -shaped circularly polarized patch antenna comprises a ground plate and a dielectric laminate, wherein the ground plate and the dielectric laminate are parallel to each other; the ground plate top is provided with the medium plywood, its characterized in that: the top of the medium layer plate is provided with a metal sheet A, and the bottom of the medium layer plate is provided with a metal sheet B;
a 3D L-shaped probe is arranged between the grounding plate and the dielectric layer plate;
the 3D L-shaped probe is composed of a vertical rod and two horizontal rods with the same length, the end parts of one ends of the two horizontal rods are mutually perpendicular and fixedly connected, and the top of the vertical rod is fixedly connected with the common end part of the two horizontal rods;
each horizontal rod is parallel to the dielectric layer plate, and the vertical rod is perpendicular to the grounding plate;
the ground plate is provided with a through hole, and the lower end of the vertical rod penetrates through the through hole to be connected with a coaxial connector arranged at the bottom of the ground plate;
the metal sheet A is in a 'home' shape and is of a completely asymmetric patch structure;
the metal sheet B is rectangular;
the length (L2) of the metal sheet B is 43.3 mm, and the width (L1) of the metal sheet B is 27.3 mm;
the distance (L8) between the bottom of the horizontal bar and the top of the ground plate is 8.5 millimeters;
the length (L3) of each horizontal rod is 8.3 mm;
the radius of the horizontal rod is 0.5 mm;
the radius of the vertical rod is 0.5 mm;
taking the central point b of the minimum circumscribed rectangle (W2W 3) of the metal sheet A shaped like the Chinese character 'jia' as the coordinate origin,
the outline of the home-shaped metal sheet A consists of 73 points, and the coordinates of each point are as follows in sequence:
the first point coordinates (x, y) are: 0.9, 40;
the second point coordinates (x, y) are: 1.4, 36.8;
the third point coordinates (x, y) are: 3.7, 29.9;
the fourth point coordinates (x, y) are: 34.9, 29.9;
the fifth point coordinates (x, y) are: 34.9, 13.6;
the sixth point coordinate (x, y) is: 27.9, 13.5;
the seventh point coordinate (x, y) is: 27.7, 24.2;
the eighth point coordinate (x, y) is: -30.8, 24.2;
the ninth point coordinate (x, y) is: -30.8, 11.5;
the tenth point coordinate (x, y) is: -37.8, 11.5;
the eleventh point coordinate (x, y) is: -37.8, 29.9;
the twelfth point coordinate (x, y) is: -4.3, 30;
the thirteenth point coordinate (x, y) is: -7.3, 37.9;
the fourteenth point coordinate (x, y) is: -5.1, 38.3;
the coordinates (x, y) of the fifteenth point are: -23.1, 19;
the sixteenth point coordinate (x, y) is: 21.9, 19.3;
the seventeenth point coordinate (x, y) is: 21.9, 11.4;
the eighteenth point coordinate (x, y) is: 1.8, 11.4;
the nineteenth point coordinate (x, y) is: -4.6, 5.3;
the twentieth coordinate (x, y) is: 2.5, -1.9;
the twenty-first coordinate (x, y) is: 5.5, -6.5;
the twenty-second point coordinate (x, y) is: 11.3, -3;
the twenty-third point coordinates (x, y) are: 17, 0.9;
the twenty-fourth point coordinate (x, y) is: 21.8, 5.8;
the twenty-fifth point coordinate (x, y) is: 23.3, 8;
the twenty-sixth point coordinate (x, y) is: 30.3, 1.8;
the twenty-seventh point coordinate (x, y) is: 24, -1.1;
the twenty-eighth point coordinate (x, y) is: 18.2, -5.1;
the twenty-ninth point coordinate (x, y) is: 19.5, -9.3;
the thirtieth point coordinate (x, y) is: 21, -12.5;
the thirty-th point coordinate (x, y) is: 25.4, -19.3;
the thirty-second point coordinate (x, y) is: 28.5, -21.9;
the thirty-third point coordinate (x, y) is: 34.5, -25.6;
the thirty-fourth point coordinate (x, y) is: 39.6, -28;
the thirty-fifth point coordinate (x, y) is: 37, -30.1;
the thirty-sixth point coordinate (x, y) is: 33.4, -34.7;
the thirty-seventh point coordinate (x, y) is: 27.1, -30.1;
the thirty-eighth point coordinate (x, y) is: 22.7, -26.1;
the thirty-ninth point coordinate (x, y) is: 17.7, -19.6;
the coordinates (x, y) of the fortieth point are: 14.1, -11.8;
the fortieth point coordinate (x, y) is: 13.1, -8.4;
coordinates (x, y) of the forty-second point are: 7.8, -11.4;
the coordinates (x, y) of the fortieth three points are: 10.7, -20.7;
coordinates (x, y) of the forty-fourth point are: 9.5, -24.7;
coordinates (x, y) of the forty-fifth point are: 9.2, -28.6;
coordinates (x, y) of the forty-sixth point are: 7.7, -33;
coordinates (x, y) of the forty-seventh point are: 4.4, -35.9;
coordinates (x, y) of the forty-eighth point are: -4.6, -39.6;
coordinates (x, y) of the forty-ninth point are: -7.1, -40;
the fifty-point coordinates (x, y) are: -10.3, -32.6;
the fifty-th point coordinate (x, y) is: -2.3, -31.7;
the fifty-second point coordinates (x, y) are: 1.2, -30.1;
the fifty-th point coordinate (x, y) is: 2.7, -20.9;
the fifty-fourth point coordinate (x, y) is: 2, -16.1;
the fifty-fifth point coordinates (x, y) are: -14.5, -27.6;
the fifty-sixth point coordinate (x, y) is: -34.4, -38.3;
coordinates (x, y) of the fifty-seventh point are: -39.6, -32.3;
the fifty-eighth point coordinates (x, y) are: -28, -28;
the fifty-ninth point coordinate (x, y) is: -6.1, -15.7;
sixty-point coordinates (x, y) are: 0, -9.9;
sixty-th point coordinates (x, y) are: -2.7, -6.2;
sixty-second point coordinates (x, y) are: -23.8, -19.6;
the sixty-third point coordinates (x, y) are: -33.9, -24.1;
sixty-fourth coordinates (x, y) are: -38.8, -18.5;
the sixty-five point coordinates (x, y) are: -19.9, -11.2;
sixty-sixth point coordinates (x, y) are: -6.3, -1.8;
sixty-seventh point coordinates (x, y) are: -9.6, 1.9;
sixty-eight point coordinates (x, y) are: -34.3, -10;
the sixty-ninth point coordinate (x, y) is: -39.1, -3.4;
the seventy point coordinates (x, y) are: -26.6, 0.2;
the seventy-first point coordinate (x, y) is: -11.7, 7.5;
the seventy-second point coordinates (x, y) are: -7.1, 11.3;
the seventy-third point coordinates (x, y) are: -23.1, 11.2;
the position of the metal sheet B is positioned by seventy-fourth points, and the coordinates of the metal sheet B are as follows:
the seventy-fourth coordinates (x, y) are: -17,12.5.
2. The "home" circular polarized patch antenna of claim 1, wherein: the metal sheet A is arranged on the medium layer plate copper plate or on the medium layer plate aluminum plate in an engraving mode, and the metal sheet B is arranged on the medium layer plate copper plate or on the medium layer plate aluminum plate in an engraving mode.
3. The "home" circular polarized patch antenna of claim 1, wherein: the metal sheet A is made of copper or aluminum, and the metal sheet B is made of copper or aluminum.
4. The "home" circular polarized patch antenna of claim 1, wherein: the grounding plate and the dielectric layer plate are both of square structures, and the side length is 120 mm.
5. The 'homeward' -shaped circularly polarized patch antenna according to claim 1, wherein: the grounding plate is composed of an aluminum plate or a copper plate.
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| CN201910747732.XA CN110690565B (en) | 2019-08-14 | 2019-08-14 | Home-shaped circularly polarized patch antenna |
| PCT/CN2020/086001 WO2021027313A1 (en) | 2019-08-14 | 2020-04-22 | Circularly polarized patch antenna in shape of chinese character "家" |
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|---|---|---|---|---|
| WO2021027313A1 (en) * | 2019-08-14 | 2021-02-18 | 青岛理工大学 | Circularly polarized patch antenna in shape of chinese character "家" |
| CN113437503A (en) * | 2021-06-23 | 2021-09-24 | 哈尔滨工程大学 | Heterogeneous hybrid circularly polarized 5G MIMO antenna |
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| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| WO2017015339A1 (en) * | 2015-07-20 | 2017-01-26 | The Regents Of The University Of California | Low-profile circularly-polarized single-probe broadband antenna |
| CN107528122A (en) * | 2017-08-31 | 2017-12-29 | 青岛理工大学 | " dream " font circular polarisation can reconstruct paster antenna |
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| JP6018853B2 (en) * | 2012-03-05 | 2016-11-02 | 日本アンテナ株式会社 | Circularly polarized antenna |
| CN106169655B (en) * | 2016-08-18 | 2019-02-05 | 青岛理工大学 | " state " font circularly-polarized patch antenna |
| CN110690565B (en) * | 2019-08-14 | 2021-05-18 | 青岛理工大学 | Home-shaped circularly polarized patch antenna |
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| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| WO2017015339A1 (en) * | 2015-07-20 | 2017-01-26 | The Regents Of The University Of California | Low-profile circularly-polarized single-probe broadband antenna |
| CN107528122A (en) * | 2017-08-31 | 2017-12-29 | 青岛理工大学 | " dream " font circular polarisation can reconstruct paster antenna |
| CN107634327A (en) * | 2017-08-31 | 2018-01-26 | 青岛理工大学 | " in " font circularly-polarized patch antenna |
| CN108832271A (en) * | 2018-05-25 | 2018-11-16 | 哈尔滨工程大学 | A kind of symmetrical Multi-Function Antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021027313A1 (en) * | 2019-08-14 | 2021-02-18 | 青岛理工大学 | Circularly polarized patch antenna in shape of chinese character "家" |
| CN113437503A (en) * | 2021-06-23 | 2021-09-24 | 哈尔滨工程大学 | Heterogeneous hybrid circularly polarized 5G MIMO antenna |
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| CN110690565B (en) | 2021-05-18 |
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