CN111146575B - Frequency scanning antenna based on half-module substrate integrated cavity - Google Patents
Frequency scanning antenna based on half-module substrate integrated cavity Download PDFInfo
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- CN111146575B CN111146575B CN202010026376.5A CN202010026376A CN111146575B CN 111146575 B CN111146575 B CN 111146575B CN 202010026376 A CN202010026376 A CN 202010026376A CN 111146575 B CN111146575 B CN 111146575B
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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
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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
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/22—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation in accordance with variation of frequency of radiated wave
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The frequency scanning antenna based on the half-module substrate integrated cavity comprises a half-module substrate integrated cavity (1), wherein the half-module substrate integrated cavity (1) is composed of a bottom surface (2), a top surface (3), a dielectric substrate (4), an opening (5), a feed probe (6) and a conductive side wall (7); the bottom surface (2) is positioned at the center of the bottom end of the dielectric substrate (4), and the top surface (3) is positioned at the center of the top end of the dielectric substrate (4); the feed probe (6) is a copper cylinder, the top end of the copper cylinder is connected with the top surface (3), and the bottom end of the copper cylinder is insulated from the bottom surface (2). The utility model has simple structure, small size and convenient processing, the-10 dB working frequency band is 2.395-2.457 GHz, the-10 dB bandwidth is about 62MHz, the main beam direction angle in the xz plane is gradually scanned from 39 degrees to 6 degrees along with the gradual rise of the signal frequency from 2.395GHz to 2.457GHz, the antenna gain is always more than 6dBi in the scanning process, the antenna efficiency is more than 86 percent, and the utility model is suitable for the fields of mobile communication, wearable equipment and the like and has better application prospect.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a frequency scanning antenna based on a half-module substrate integrated cavity.
Background
In recent years, frequency scanning antennas have become one of the research hotspots in the antenna field due to the characteristic that the beam direction changes with frequency. However, in the prior art, the frequency scanning antenna is generally an array antenna structure, and the antenna size is relatively large, so that the frequency scanning antenna is difficult to be practically used in the fields of mobile communication, wearable equipment and the like.
Disclosure of Invention
The utility model aims to provide a frequency scanning antenna based on a half-module substrate integrated cavity, which has small size and simple structure, so as to solve the problems that the existing array antenna has a complex structure and large size and is not suitable for portable and wearable equipment.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a frequency scanning antenna based on a half-module substrate integrated cavity comprises a half-module substrate integrated cavity, wherein the half-module substrate integrated cavity is composed of a bottom surface, a top surface, a dielectric substrate, an opening, a feed probe and a conductive side wall. The half-mould substrate integrated cavity is divided into an upper half-mould substrate integrated cavity and a lower half-mould substrate integrated cavity which are placed in a mirror symmetry mode. The bottom surface is positioned at the bottom center of the dielectric substrate, and the top surface is positioned at the top center of the dielectric substrate; the feed probe is a copper cylinder, the top end of the copper cylinder is connected with the top surface, and the bottom end of the copper cylinder is insulated from the bottom surface; the conductive side wall consists of copper through holes which are equidistantly arranged, the top ends of the copper through holes are connected with the top surface, and the bottom ends of the copper through holes are connected with the bottom surface; the conductive side wall comprises a left conductive side wall, a right conductive side wall and a middle conductive side wall, wherein the left conductive side wall and the right conductive side wall are respectively positioned at the left side and the right side of the top surface, the middle conductive side wall is positioned at the middle position of the top surface, the upper half-mould substrate integrated cavity and the lower half-mould substrate integrated cavity are respectively positioned at the upper side and the lower side of the middle conductive side wall, and the opening is positioned at the center position of the middle conductive side wall.
Further, the length of the dielectric substrate is 110mm, the width of the dielectric substrate is 110mm, and the height of the dielectric substrate is 1.58mm; the material of the dielectric substrate is Rogers RT/duroid 5880.
Further, the bottom surface and the bottom end of the dielectric substrate have the same size.
Further, the top surface is rectangular, the top surface width is 57.8mm, and the top surface length is 67.8mm.
Further, the top surface and the bottom surface are made of conductive cloth material with the model NCS95R-CR, and the square resistance is 0.04 omega.
Further, the radius of the copper via hole is 0.4mm, and the interval of the copper via hole is 2mm.
Further, the radius of the copper cylinder is 0.6mm.
Further, the length of the opening is 9mm.
Compared with the prior art, the utility model has the beneficial effects that:
the antenna provided by the utility model has the advantages of simple structure, small size and convenience in processing, the-10 dB working frequency band is 2.395-2.457 GHz, the-10 dB bandwidth is about 62MHz, the main beam direction angle in the xz plane is gradually scanned from 39 degrees to 6 degrees along with the gradual rise of the signal frequency from 2.395GHz to 2.457GHz, the antenna gain is always greater than 6dBi in the scanning process, the antenna efficiency is greater than 86%, and the antenna is suitable for the fields of mobile communication, wearable equipment and the like and has a good application prospect.
Drawings
Fig. 1 is a schematic structural diagram of a frequency scanning antenna based on a half-module substrate integrated cavity of the present utility model;
FIG. 2 is a return loss curve of a frequency scanning antenna based on a half-mode substrate integrated cavity of the present utility model;
FIG. 3 is a schematic diagram of the xz radiation pattern of the frequency scanning antenna based on the half-module substrate integrated cavity of the present utility model at 2.395-2.457 GHz;
in fig. 1: 1-a half-mold substrate integrated cavity; 11-an upper mold half substrate integrated cavity; 12-a lower mold half substrate integrated cavity; 2-bottom surface; 3-top surface; 4-a dielectric substrate; 5-opening; 6-feeding the probe; 7-conductive sidewalls; 71-left side conductive sidewall; 72-right side conductive sidewalls; 73-intermediate conductive sidewalls.
The specific embodiment is as follows:
the technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
as shown in fig. 1, the frequency scanning antenna based on the half-module substrate integrated cavity comprises a half-module substrate integrated cavity 1, wherein the half-module substrate integrated cavity 1 is composed of a bottom surface 2, a top surface 3, a dielectric substrate 4, an opening 5, a feed probe 6 and conductive side walls 7. The mold-half substrate integration cavity 1 is divided into an upper mold-half substrate integration cavity 11 and a lower mold-half substrate integration cavity 12, and the upper mold-half substrate integration cavity 11 and the lower mold-half substrate integration cavity 12 are placed in mirror symmetry.
The dielectric substrate 4 was formed of Rogers RT/duroid 5880, the length of the dielectric substrate 4 was 110mm, the width of the dielectric substrate 4 was 110mm, the height of the dielectric substrate 4 was 1.58mm, the relative dielectric constant of the dielectric substrate 4 was 2.2, and the loss tangent was 0.0009.
The bottom surface 2 is located at the bottom center of the dielectric substrate 4, the top surface 3 is located at the top center of the dielectric substrate 4, and both the bottom surface 2 and the top surface 3 have good conductive performance. The size of the bottom surface 2 is the same as that of the bottom end of the dielectric substrate 4, the length of the bottom surface 2 is 110mm, and the width of the bottom surface 2 is 110mm. The top surface 3 is rectangular, the width of the top surface 3 is 57.8mm, and the length of the top surface 3 is 67.8mm. The top surface 3 and the bottom surface 2 are made of conductive cloth material, wherein the conductive cloth is made of NCS95R-CR material, and the square resistance is 0.04 omega.
The conductive side wall 7 is composed of copper via holes which are arranged at equal intervals, the top ends of the copper via holes are connected with the top surface 3, the bottom ends of the copper via holes are connected with the bottom surface 2, the radius of the copper via holes is 0.4mm, and the distance between the copper via holes is 2mm. The conductive side wall 7 is composed of a left conductive side wall 71, a right conductive side wall 72 and a middle conductive side wall 73, the left conductive side wall 71 and the right conductive side wall 72 are respectively located at two sides of the top surface 3, the middle conductive side wall 73 is located at the middle position of the top surface 3, the upper half-mold substrate integrated cavity 11 and the lower half-mold substrate integrated cavity 12 are respectively located at the upper side and the lower side of the middle conductive side wall 73, and the conductive side walls 7 have good conductive performance. The opening 5 is located at the center of the middle conductive sidewall 73, and when the spacing s=9 mm of the openings 5, the antenna impedance matching is optimal. The feed probe 6 is a copper cylinder with a radius of 0.6mm, the top end of which is connected to the top surface, and the bottom end of which is insulated from the bottom surface.
The lower mold half substrate integration cavity 12 is fed by the feed probe 6 and the upper mold half substrate integration cavity 11 is excited through an opening in the intermediate conductive sidewall 73. At different resonant frequencies, the electric field modes excited in the symmetrical half-mode substrate integrated cavity are odd-order modes/even-order modes respectively, and in-phase/anti-phase equivalent magnetic dipoles are generated at the radiation openings of the lower half-mode substrate integrated cavity 12 and the upper half-mode substrate integrated cavity 11 respectively, so that different beam directions are obtained.
Simulation analysis is carried out by using electromagnetic simulation software HFSS to obtain the antenna size structure: w=110 mm, l=110 mm, l=28.9 mm, Δl=0, s=9 mm.
Fig. 2 shows a frequency scanning antenna simulation return loss (S) based on a half-mode substrate integrated cavity of the present example 11 ) The-10 dB operating band of the antenna is 2.395-2.457 GHz, and the-10 dB bandwidth is about 62MHz.
Fig. 3 is an xz simulation plane normalized radiation pattern of the frequency scanning antenna based on the half-module substrate integrated cavity in the present example at different frequencies in the 2.395-2.457 GHz band, and the main beam direction angle of the antenna in the xz plane is scanned from 39 ° to 6 ° gradually as the signal frequency is increased gradually from 2.395GHz to 2.457 GHz.
The frequency scanning antenna based on the half-module substrate integrated cavity has the simulation curve that the antenna gain and the antenna efficiency change along with the frequency in the frequency band of 2.395-2.457 GHz, and the antenna gain is always more than 5.4dBi and the antenna efficiency is more than 92% on all frequency points.
Claims (8)
1. A frequency scanning antenna based on a half-module substrate integrated cavity, characterized in that: the integrated cavity (1) of the half-mould substrate is formed by a bottom surface (2), a top surface (3), a dielectric substrate (4), an opening (5), a feed probe (6) and a conductive side wall (7), and the integrated cavity (1) of the half-mould substrate is divided into an upper integrated cavity (11) of the half-mould substrate and a lower integrated cavity (12) of the half-mould substrate which are placed in mirror symmetry; the bottom surface (2) is positioned at the center of the bottom end of the dielectric substrate (4), and the top surface (3) is positioned at the center of the top end of the dielectric substrate (4); the feed probe (6) is a copper cylinder and is arranged in the lower half-mould substrate integrated cavity (12), the top end of the copper cylinder is connected with the top surface (3), and the bottom end of the copper cylinder is insulated from the bottom surface (2); the conductive side wall (7) consists of copper through holes which are equidistantly arranged, the top ends of the copper through holes are connected with the top surface (3), and the bottom ends of the copper through holes are connected with the bottom surface (2); the conductive side wall (7) is divided into a left conductive side wall (71), a right conductive side wall (72) and a middle conductive side wall (73), the left conductive side wall (71) and the right conductive side wall (72) are respectively located at the left side and the right side of the top surface (3), the middle conductive side wall (73) is located at the middle position of the top surface (3), the upper half-mold substrate integrated cavity (11) and the lower half-mold substrate integrated cavity (12) are respectively located at the upper side and the lower side of the middle conductive side wall (73), and the opening (5) is located at the center position of the middle conductive side wall (73).
2. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 1, wherein: the length of the dielectric substrate (4) is 110mm, the width of the dielectric substrate (4) is 110mm, and the height of the dielectric substrate (4) is 1.58mm; the material of the dielectric substrate (4) is Rogers RT/duroid 5880.
3. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 2, wherein: the bottom surface (2) and the bottom end of the dielectric substrate (4) are the same in size.
4. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 3, characterized in that: the top surface (3) is rectangular, the width of the top surface (3) is 57.8mm, and the length of the top surface (3) is 67.8mm.
5. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 4, wherein: the top surface (3) and the bottom surface (2) are made of conductive cloth material with the model of NCS95R-CR, and the square resistance is 0.04 omega.
6. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 1, wherein: the radius of the copper via hole is 0.4mm, and the interval of the copper via hole is 2mm.
7. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 1, wherein: the radius of the copper cylinder is 0.6mm.
8. A frequency scanning antenna based on a half-die substrate integrated cavity as claimed in claim 1, wherein: the length of the opening (5) is 9mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010026376.5A CN111146575B (en) | 2020-01-10 | 2020-01-10 | Frequency scanning antenna based on half-module substrate integrated cavity |
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| CN202010026376.5A CN111146575B (en) | 2020-01-10 | 2020-01-10 | Frequency scanning antenna based on half-module substrate integrated cavity |
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| CN111146575B true CN111146575B (en) | 2023-07-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201732867U (en) * | 2010-07-27 | 2011-02-02 | 东南大学 | Periodic leaky-wave antenna of substrate integrated waveguide (SIW) based on half module |
| CN108767467A (en) * | 2018-06-07 | 2018-11-06 | 中山大学 | A kind of wide-band high gain medium integrated waveguide antenna |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2107638A1 (en) * | 2008-03-31 | 2009-10-07 | Sony Corporation | Half-mode substrate integrated antenna structure |
| SG180056A1 (en) * | 2010-10-28 | 2012-05-30 | Sony Corp | An antenna |
| CN104466418A (en) * | 2014-12-12 | 2015-03-25 | 南京大学 | Magnetic-field-adjustable half-mode substrate integrated waveguide antenna |
| KR101699287B1 (en) * | 2015-11-04 | 2017-01-25 | 중앙대학교 산학협력단 | Frequency tunable half mode substrate integragted waveguide and method for manufacturing thereof |
| CN206650172U (en) * | 2017-04-18 | 2017-11-17 | 江苏建筑职业技术学院 | A kind of wearable turnover structure half module substrate integrates cavity antenna |
| CN206774671U (en) * | 2017-04-27 | 2017-12-19 | 江苏建筑职业技术学院 | A kind of multifrequency switching half module substrate integrates cavity antenna |
| CN109742538B (en) * | 2018-12-05 | 2024-01-30 | 东南大学 | Millimeter wave phased array magnetic dipole antenna of mobile terminal and antenna array thereof |
| CN211320318U (en) * | 2020-01-10 | 2020-08-21 | 江苏师范大学 | Frequency scanning antenna based on half-mode substrate integrated cavity |
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- 2020-01-10 CN CN202010026376.5A patent/CN111146575B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201732867U (en) * | 2010-07-27 | 2011-02-02 | 东南大学 | Periodic leaky-wave antenna of substrate integrated waveguide (SIW) based on half module |
| CN108767467A (en) * | 2018-06-07 | 2018-11-06 | 中山大学 | A kind of wide-band high gain medium integrated waveguide antenna |
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