CN220527200U - Circularly polarized double-frequency patch antenna - Google Patents
Circularly polarized double-frequency patch antenna Download PDFInfo
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- CN220527200U CN220527200U CN202322288300.1U CN202322288300U CN220527200U CN 220527200 U CN220527200 U CN 220527200U CN 202322288300 U CN202322288300 U CN 202322288300U CN 220527200 U CN220527200 U CN 220527200U
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- patch antenna
- circularly polarized
- annular belt
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- 230000005855 radiation Effects 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000010287 polarization Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 101710195281 Chlorophyll a-b binding protein Proteins 0.000 description 1
- 101710143415 Chlorophyll a-b binding protein 1, chloroplastic Proteins 0.000 description 1
- 101710181042 Chlorophyll a-b binding protein 1A, chloroplastic Proteins 0.000 description 1
- 101710091905 Chlorophyll a-b binding protein 2, chloroplastic Proteins 0.000 description 1
- 101710095244 Chlorophyll a-b binding protein 3, chloroplastic Proteins 0.000 description 1
- 101710127489 Chlorophyll a-b binding protein of LHCII type 1 Proteins 0.000 description 1
- 101710184917 Chlorophyll a-b binding protein of LHCII type I, chloroplastic Proteins 0.000 description 1
- 101710102593 Chlorophyll a-b binding protein, chloroplastic Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a circularly polarized double-frequency patch antenna which is mainly characterized by comprising a dielectric substrate made of an insulating material, a sheet-shaped radiation component made of a conductive material, an annular belt made of a conductive material and a feed-in component made of a conductive material, wherein the top edge and the bottom edge of the dielectric substrate respectively form a first surface and a second surface, the periphery of the dielectric substrate forms a third surface, the radiation component is arranged on the first surface, a slot hole penetrates through the radiation component, the annular belt surrounds the lateral periphery of the radiation component, an annular isolation space is formed between the annular belt and the radiation component, the annular belt is used for electromagnetic coupling of the radiation component, the feed-in component is arranged on the third surface, and the feed-in component is used for electromagnetic coupling of the radiation component.
Description
Technical Field
The utility model relates to a patch antenna, in particular to an innovative structure of a circularly polarized dual-frequency patch antenna.
Background
The patch antenna is a communication electronic component for receiving and transmitting wireless signals, and comprises a dielectric substrate, a radiation component and a conductive feed pin, wherein the dielectric substrate formed by insulating materials is provided with a plane, the radiation component formed by conductive materials is connected with the plane, the conductive feed pin is provided with a head part and a rod part, the rod part penetrates through the radiation component and the dielectric substrate, one side of the dielectric substrate far away from the radiation component protrudes out of the dielectric substrate, and the head part is abutted against the radiation component.
This structural morphology has been found to have the following problems in practical experience: since the stem portion of the feed pin protrudes out of one side of the dielectric substrate, the patch antenna is not easy to be integrally applied to a surface mount technology (Surface Mount Technology, abbreviated as SMT), and if the patch antenna is applied to receive dual-frequency signals, the structure of the radiation component is complicated, and the dielectric substrate needs to be matched with the radiation component to form a complicated three-dimensional structure, so that the radiation component can be configured and positioned on the dielectric substrate.
Disclosure of Invention
The utility model mainly aims to provide a circularly polarized dual-frequency patch antenna.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a circularly polarized dual-frequency patch antenna comprising:
a dielectric substrate formed by an insulating material, wherein the top edge of the dielectric substrate forms a first surface, the bottom edge of the dielectric substrate forms a second surface, one side of the dielectric substrate forms a third surface, and the third surface is adjacent to the first surface and the second surface;
the radiation component is a sheet body made of conductive materials and is arranged on the first surface;
the annular belt is a sheet body formed by conductive materials, the annular belt is arranged on the first surface, the annular belt surrounds the lateral periphery of the radiation component, the annular inner side of the annular belt is laterally opposite to the peripheral side of the radiation component, an annular isolation space is formed between the annular belt and the radiation component, the isolation space separates the annular belt and the radiation component, and the annular belt is electromagnetically coupled with the radiation component;
the feed-in component is configured on the third surface, the feed-in component is made of conductive materials, one end of the feed-in component extends towards the direction of the first surface, a gap is formed between the feed-in component and the annular belt, the gap separates the annular belt and the feed-in component, the feed-in component is electromagnetically coupled with the annular belt, and the other end of the feed-in component extends to the bottom edge of the third surface;
a slot penetrates the radiation component, and the radiation component surrounds the slot.
Compared with the prior art, the utility model can be applied to the surface mounting technology as a surface mounting component (Surface Mount Device, abbreviated as SMD), and the slot is formed, so that signals can be received in two frequency bands, thereby achieving practical improvement.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present utility model.
Fig. 2 is a top view of a first embodiment of the present utility model.
Fig. 3 is a graph of a planar radiation pattern at a frequency of 1.575GHz in accordance with an embodiment of the present utility model.
Fig. 4 is a graph of a planar radiation pattern at a frequency of 1.176GHz in accordance with an embodiment of the present utility model.
Fig. 5 is a perspective view of a second embodiment of the present utility model.
Fig. 6 is a top view of a second embodiment of the present utility model.
Fig. 7 is a diagram of the return loss frequency response of the antenna according to the second embodiment of the present utility model.
Fig. 8 is a graph of a planar radiation field pattern at a frequency band of 1.575GHz in accordance with the second embodiment of the present utility model.
Fig. 9 is a plane radiation pattern diagram at a frequency band of 1.176GHz according to a second embodiment of the present utility model.
Fig. 10 is a top view of a third embodiment of the present utility model.
Fig. 11 is a plane radiation pattern diagram at a frequency band of 1.575GHz according to a third embodiment of the present utility model.
Fig. 12 is a plane radiation pattern diagram at a frequency band of 1.176GHz according to a third embodiment of the present utility model.
Fig. 13 is a perspective view of a fourth embodiment of the present utility model.
Fig. 14 is a top view of a fifth embodiment of the present utility model.
Fig. 15 is a top view of a sixth embodiment of the present utility model.
Detailed Description
Referring to the drawings, embodiments of the circularly polarized dual-band patch antenna of the present utility model are shown, but these embodiments are merely for illustration, and are not limited to this structure in the patent application.
As shown in fig. 1 to 4, the first embodiment of the circularly polarized dual-band patch antenna includes a dielectric substrate 10 made of an insulating material, a radiation element 20, an annular band 30 and a feed element 40, wherein a top edge of the dielectric substrate 10 forms a first surface 12, a bottom edge of the dielectric substrate 10 forms a second surface 14, the second surface 14 is used for contacting solder paste (not shown) on a surface of a circuit board (not shown), a third surface 16 is formed on one side of the dielectric substrate 10, and the third surface 16 is adjacent to the first surface 12 and the second surface 14.
The radiation element 20 is a sheet made of conductive material, the radiation element 20 is disposed on the first surface 12, a slot 50 penetrates the radiation element 20, and the radiation element 20 surrounds the slot 50.
The radiation module 20 may be replaced with a sheet of another shape as needed, and the conversion implementation selection based on the first variation of the embodiment is configured accordingly.
The annular band 30 is a sheet made of conductive material, the annular band 30 is disposed on the first surface 12, the annular band 30 surrounds the lateral periphery of the radiation element 20, the annular inner side of the annular band 30 and the circumferential side of the radiation element 20 are laterally opposite, an annular isolation space 62 is formed between the annular band 30 and the radiation element 20, the isolation space 62 separates the annular band 30 and the radiation element 20, and the annular band 30 is electromagnetically coupled with the radiation element 20.
The feeding element 40 is disposed on the third surface 16, the feeding element 40 is made of conductive material, one end of the feeding element 40 extends toward the first surface 12, a gap 64 is formed between the feeding element 40 and the endless belt 30, the gap 64 separates the endless belt 30 and the feeding element 40, the feeding element 40 is electromagnetically coupled to the endless belt 30, and the other end of the feeding element 40 extends to the bottom edge of the third surface 16.
When the dielectric substrate 10 is disposed on a circuit board, the second surface 14 contacts solder paste printed on the circuit board, and the melted solder paste contacts the feeding element 40 to form an electrical connection in the reflow soldering process, the utility model is easy to integrate and apply to the surface mount technology as a surface mount element, the slot 50 is formed, so that the first embodiment can receive signals in two frequency bands, fig. 3 and fig. 4 respectively draw the field pattern of right circular polarization (Right Hand Circular Polarization, RHCP) in solid lines, and the dotted line draws the field pattern of left circular polarization (Left Hand Circular Polarization, LHCP) obtained according to the third variation of the embodiment, wherein the unit along the circumferential direction is an angle, and the unit along the diameter direction is dB.
The slot 50 is mainly formed by integrally connecting two expansion portions 52 and a neck portion 54, wherein each expansion portion 52 forms two ends of the slot 50, the neck portion 54 is located between the expansion portions 52, specifically, the width W1 of the neck portion 54 is smaller than the width W2 of each expansion portion 52, each expansion portion 52 and the neck portion 54 are respectively elongated, and the neck portion 54 is communicated with the central portion of each expansion portion 52, so that the slot 50 is shaped like an i, the specific shape of the slot 50 can be replaced as required, and the i is only one specific practical illustration of the shape of the slot 50 and cannot be used for explaining the limitation of the slot 50.
The feeding element 40 includes a first extending portion 41, a second extending portion 42 and a connecting portion 43, wherein the first extending portion 41 is disposed on the first surface 12, the second extending portion 42 is disposed on the second surface 14, the connecting portion 43 is disposed on the third surface 16, the connecting portion 43 connects the first extending portion 41 and the second extending portion 42, the gap 64 separates the first extending portion 41 and the loop band 30, the first extending portion 41 is electromagnetically coupled to the loop band 30, the second extending portion 42 is disposed on the second surface 14, and the signal is fed into the feeding element 40 through the second extending portion 42.
Fig. 5 to 9 show a second embodiment of the present utility model, which is mainly different from the first embodiment in that the radiation element 20 penetrates through two elongated slots 50, each slot 50 is formed along a virtual axis X at intervals, and the axis X passes through each slot 50 at two ends in the elongated direction.
The feeding element 40 includes a plurality of first extending portions 41 disposed on the first surface 12, wherein a plurality of gaps 64 are respectively located between each of the first extending portions 41 and the endless belt 30, each of the first extending portions 41 is respectively electromagnetically coupled to the endless belt 30, the connecting portion 43 includes a trunk 44, a plurality of branches 45, and a connecting portion 46, wherein each of the branches 45 is respectively connected to each of the first extending portions 41, the connecting portion 46 is connected to each of the branches 45, and the trunk 44 is connected to the second extending portion 42 and the connecting portion 46.
Fig. 7 shows the frequency response of the return loss of the antenna according to the second embodiment, wherein the horizontal axis is frequency in GHz, and the vertical axis is return loss in dB.
As shown in fig. 10 and 12, the configuration of the third embodiment is mainly different from that of the second embodiment in that the slots 50 are spatially opposite to the feed-in component 40, and each slot 50 of the second embodiment is rotated 90 ° about the axial direction orthogonal to the thickness of the dielectric substrate 10, so as to change into the third embodiment, which has a field pattern different from the right-hand circular polarization and the left-hand circular polarization of the second embodiment.
As shown in fig. 13, the fourth embodiment is mainly different from the first embodiment in that the radiation element 20 penetrates through two elongated slots 50, each slot 50 is formed along a virtual axis X at intervals, and the axis X passes through both ends of each slot 50 in the elongated direction.
The feeding element 40 does not have the first extension portion 41 and the second extension portion 42 of the first embodiment, so that the process of forming the first extension portion 41 and the second extension portion 42 by the feeding element 40 in the first embodiment can be reduced, the feeding element 40 includes a main portion 44, a plurality of branches 45 and a connecting portion 46, each branch 45 extends toward the first surface 12, a plurality of gaps 64 are respectively located between each branch 45 and the endless belt 30, each branch 45 is respectively electromagnetically coupled to the endless belt 30, the connecting portion 46 is connected to each branch 45, one end of the main portion 44 is connected to the connecting portion 46, and the other end of the main portion 44 extends to the bottom edge of the third surface 16, so that the signal is fed into the feeding element 40.
The dielectric substrate 10 is disposed on the circuit board, and during the solder paste reflow process, the solder paste on the peripheral side of the dielectric substrate 10 melts and contacts the stem 44 on the third surface 16, so that the solder paste and the feeding element 40 form an electrical connection, and signals can be fed into the feeding element 40.
As shown in fig. 14, the fifth embodiment is different from the third embodiment in that the peripheral side of the radiation element 20 facing the isolation space 62 is mainly formed by sequentially connecting four straight side surfaces 22 and four arc surfaces 24, each arc surface 24 is respectively connected with two side surfaces 22, and the ring belt 30 changes the shape of the side of the ring belt facing the radiation element 20 in cooperation with the formation of each arc surface 24, so that an equidistant space is formed between the ring belt 30 and the radiation element 20.
Further, the radiation element 20 having the side surfaces 22 and the arc surfaces 24 can be applied to the first to fourth embodiments, and the radiation element 20 disclosed in the first to fourth embodiments without having the side surfaces 22 and the arc surfaces 24 can be replaced.
As shown in fig. 15, the sixth embodiment is mainly different from the second embodiment in that the radiation element 20 penetrates through two circular slots 50.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A circularly polarized dual-band patch antenna, comprising:
a dielectric substrate formed by an insulating material, wherein the top edge of the dielectric substrate forms a first surface, the bottom edge of the dielectric substrate forms a second surface, one side of the dielectric substrate forms a third surface, and the third surface is adjacent to the first surface and the second surface;
the radiation component is a sheet body made of conductive materials and is arranged on the first surface;
the annular belt is a sheet body formed by conductive materials, the annular belt is arranged on the first surface, the annular belt surrounds the lateral periphery of the radiation component, the annular inner side of the annular belt is laterally opposite to the peripheral side of the radiation component, an annular isolation space is formed between the annular belt and the radiation component, the isolation space separates the annular belt and the radiation component, and the annular belt is electromagnetically coupled with the radiation component;
the feed-in component is configured on the third surface, the feed-in component is made of conductive materials, one end of the feed-in component extends towards the direction of the first surface, a gap is formed between the feed-in component and the annular belt, the gap separates the annular belt and the feed-in component, the feed-in component is electromagnetically coupled with the annular belt, and the other end of the feed-in component extends to the bottom edge of the third surface;
a slot penetrates the radiation component, and the radiation component surrounds the slot.
2. The circularly polarized dual-band patch antenna of claim 1, wherein the slot is formed by integrally connecting two extensions and a neck, each extension forming two ends of the slot, respectively, the neck being located between the extensions.
3. The circularly polarized dual-band patch antenna of claim 2, wherein the width of the neck portion is smaller than the width of each of the expansion portions.
4. A circularly polarized dual-band patch antenna as claimed in claim 2 or 3 wherein each of the expansion and neck portions are elongated and the neck portion communicates with a central portion of each expansion.
5. The circularly polarized dual-band patch antenna of claim 1, wherein the radiating element extends through two elongated slots, each slot being formed at intervals along a virtual axis passing through both ends of each slot in the elongated direction.
6. The circularly polarized dual-band patch antenna of claim 1, wherein the peripheral side of the radiating element facing the isolation space is mainly composed of four straight sides and four circular arc surfaces sequentially joined, each circular arc surface connecting two sides respectively.
7. The circularly polarized dual-band patch antenna of claim 1, wherein the radiating element extends through two circular slots.
8. The circularly polarized dual-band patch antenna of claim 1, wherein the feed-in assembly comprises a first extension, a second extension and a connection portion, wherein the first extension is disposed on the first surface, the second extension is disposed on the second surface, the connection portion is disposed on the third surface, the connection portion connects the first extension and the second extension, the first extension and the loop are separated by a gap, and the first extension is electromagnetically coupled to the loop.
9. The circularly polarized dual-band patch antenna of claim 8, wherein the feed-in assembly comprises a plurality of first extensions disposed on the first surface, a plurality of gaps disposed between the first extensions and the loop, the first extensions being respectively electromagnetically coupled to the loop, the connection portion comprising a trunk, a plurality of branches, and a connection portion, the branches being respectively connected to the first extensions, the connection portion being connected to the branches, the trunk being connected to the second extensions and the connection portion.
10. The circularly polarized dual-band patch antenna of claim 1, wherein the feed element comprises a main portion, a plurality of branches and a connecting portion, wherein each branch extends toward the first surface, a plurality of gaps are respectively located between each branch and the loop, each branch is respectively electromagnetically coupled to the loop, the connecting portion is connected to each branch, one end of the main portion is connected to the connecting portion, and the other end of the main portion extends to the bottom edge of the third surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322288300.1U CN220527200U (en) | 2023-08-24 | 2023-08-24 | Circularly polarized double-frequency patch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322288300.1U CN220527200U (en) | 2023-08-24 | 2023-08-24 | Circularly polarized double-frequency patch antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220527200U true CN220527200U (en) | 2024-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322288300.1U Active CN220527200U (en) | 2023-08-24 | 2023-08-24 | Circularly polarized double-frequency patch antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220527200U (en) |
-
2023
- 2023-08-24 CN CN202322288300.1U patent/CN220527200U/en active Active
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