CN215418590U - FPC antenna and sensor product of 433MHz frequency channel - Google Patents
FPC antenna and sensor product of 433MHz frequency channel Download PDFInfo
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- CN215418590U CN215418590U CN202121947122.3U CN202121947122U CN215418590U CN 215418590 U CN215418590 U CN 215418590U CN 202121947122 U CN202121947122 U CN 202121947122U CN 215418590 U CN215418590 U CN 215418590U
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- 230000005855 radiation Effects 0.000 claims abstract description 84
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000004642 Polyimide Substances 0.000 claims abstract 2
- 229920001721 polyimide Polymers 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 238000004891 communication Methods 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The application relates to the technical field of communication antennas and discloses an FPC (flexible printed circuit) antenna with a 433MHz frequency band, which comprises a PI (polyimide) substrate; release paper; a radiation unit; a feed point; a slot line. Through the width and the adjustment slot line angle of opening that set up the slot line, set up radiating element's position according to the mode of predetermineeing, realize better radiation and receive radio wave, reinforcing antenna interference killing feature has promoted antenna transmission efficiency. The present application further discloses a sensor product.
Description
Technical Field
The application relates to the technical field of communication antennas, in particular to an FPC antenna with a 433MHz frequency band and a sensor product.
Background
At present, wireless communication technology and wireless communication system have been widely applied to many fields, and users can break through distance limitation, realize long distance propagation signals, and information transmission by using wireless communication technology is already an important mode of communication. However, the antenna performance of communication transmission is insufficient, which affects transmission and reception of wireless communication, and further affects the information wireless transmission distance, and thus there is a problem that the effect of antenna signal reception and transmission is poor.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the FPC antenna applied to product design at present has the defects of insufficient antenna performance and weak anti-interference capability, so that the receiving and transmitting capabilities of antenna signals are insufficient, and the transmission efficiency of the antenna is reduced.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides an FPC antenna and sensor product for 433MHz frequency channel, promotes the effect of antenna reception and transmission, has strengthened the antenna interference killing feature, has promoted antenna transmission efficiency.
In some embodiments, the FPC antenna for the 433MHz frequency band includes:
the PI base material is provided with a 3M adhesive layer on the lower surface;
the release paper is arranged on the lower surface of the 3M adhesive layer and is bonded with the 3M adhesive layer in a peelable manner;
the radiation unit is arranged on the radiation unit layer, the surface of the radiation unit is coated with copper and is arranged on the upper surface of the PI substrate, and the radiation unit is formed by sequentially connecting a plurality of radiation sheets according to a preset mode;
the feed point is arranged below the upper surface of the radiation unit and is tightly attached to the radiation unit, and the upper surface of the feed point is provided with a gold-plated layer which is nickel-plated gold;
and the slot line is arranged on the radiation unit layer and divides the radiation unit according to a preset mode.
In some embodiments, the sensor product comprises:
a housing;
a PCB circuit board;
a power supply device;
the device of the FPC antenna with the 433MHz frequency band is disclosed.
The device and the sensor product of FPC antenna of 433MHz frequency channel that this disclosed embodiment provided can realize following technological effect:
the application provides a device and sensor product of FPC antenna of 433MHz frequency channel, through the width that sets up the slot line and adjustment slot line open line angle, change radiating element's the position that sets up, realize better radiation and receive radio wave, reinforcing antenna interference killing feature has promoted antenna transmission efficiency.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic cross-sectional view of an FPC antenna for the 433MHz frequency band according to the embodiment of the present disclosure;
fig. 2 is an overall schematic diagram of an FPC antenna for 433MHz frequency band according to the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a slot line of an FPC antenna for 433MHz frequency band according to an embodiment of the present disclosure;
fig. 4 is a schematic frequency response diagram of an FPC antenna for the 433MHz frequency band according to the embodiment of the present disclosure;
fig. 5 is a smith chart of the impedance characteristics of an FPC antenna for the 433MHz frequency band provided by the embodiment of the present disclosure;
fig. 6 is a voltage standing wave ratio diagram of an FPC antenna for 433MHz frequency band according to the embodiment of the present disclosure.
Reference numerals:
1: a first linear radiation sheet; 2: a second arc radiation sheet; 3: a third linear radiation sheet; 4: a fourth linear radiation patch; 5: a fifth linear radiation sheet; 6: a sixth arc radiating patch; 7: a seventh linear radiating patch; 8: an eighth linear radiating patch; 9: a ninth linear radiating patch; 10: a tenth straight radiation patch; 11: an eleventh linear radiating patch; 12: a feed point; 13: a first slot line; 14: a second slot line; 15: a third slot line; 16: a fourth slot line; 17: a fifth slot line; 18: a sixth slot line; 19: a seventh slot line; 20: an eighth slot line; 21: release paper; 22: 3M glue layer; 23: a PI substrate; 24: an AD adhesive layer; 25: a radiation unit.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
At present, the application scenario of the FPC antenna with the 433MHz frequency band provided by the present application includes signal transmission and reception for a wireless sensor.
Referring to fig. 1 and 2, an FPC antenna at 433MHz frequency band is provided in the embodiment of the present disclosure, and includes a PI substrate 23, a release paper 21, a radiation unit 25, a feeding point 12, and a slot line. The lower surface of the PI base material 23 is provided with a 3M glue layer 22; the release paper 21 is arranged on the lower surface of the 3M adhesive layer 22, and the release paper 21 and the 3M adhesive layer 22 are connected in a peelable manner; the surface of the radiation unit 25 is coated with copper and is arranged on the upper surface of the PI base layer 23, and the radiation unit 25 is formed by sequentially connecting a plurality of radiation sheets in a preset mode; the feed point 12 is arranged at the lower part of the upper surface of the radiation unit 25 and is tightly attached to the radiation unit 25, and the upper surface of the feed point 12 is provided with a nickel-gold plating layer; the slot lines are provided in the radiation unit layer to divide the radiation unit 25.
Adopt the FPC antenna of 433MHz frequency channel that this disclosed embodiment provided, set up radiation unit according to the mode of predetermineeing, the setting position of adjustment radiation unit that like this can be better, realized that the FPC antenna return loss of this application is low, and the gain is high, and then can be better radiation and receive radio wave, reinforcing antenna interference killing feature has promoted antenna transmission efficiency.
Optionally, the radiation unit 25 of the FPC antenna at the 433MHz frequency band provided in the embodiment of the present disclosure includes a first straight radiation piece 1, a second arc radiation piece 2, a third straight radiation piece 3, a fourth straight radiation piece 4, a fifth straight radiation piece 5, a sixth arc radiation piece 6, a seventh straight radiation piece 7, an eighth straight radiation piece 8, a ninth straight radiation piece 9, a tenth straight radiation piece 10, and an eleventh straight radiation piece 11, which are connected in sequence.
Optionally, the preset size and the preset connection mode of the FPC antenna radiation piece at the 433MHz frequency band provided by the embodiment of the present disclosure are: the length of the first straight line radiation sheet 1 is 17.8 mm, the width of the first straight line radiation sheet 1 is 1 mm, and the first end of the first straight line radiation sheet 1 is connected to one side of the feed point 12 in a right angle manner; the arc length of the second arc radiation piece 2 is 5.45 mm, the width of the second arc radiation piece is 1.05 mm, the radian of the second arc radiation piece is 83 degrees, and the second end of the first arc radiation piece 1 is directly connected with the first end of the second arc radiation piece 2; the length of the third linear radiating patch 3 is 9.8 mm, and the width of the third linear radiating patch is 1.1 mm; the length of the fourth linear radiating patch 4 is 21.7 mm, and the width of the fourth linear radiating patch 4 is 1.4 mm; the length of the fifth linear radiating patch 5 is 11.6 mm, and the width of the fifth linear radiating patch is 1.5 mm; the sixth arc radiation sheet 6 is 4.45 mm in length, 1.1 mm in width and 65 degrees in radian; the length of the seventh linear radiating patch 7 is 35.6 mm, and the width thereof is 1.35 mm; the eighth linear radiating patch 8 has a length of 11.5 mm and a width of 1.5 mm; the ninth linear radiating patch 9 has a length of 19 mm and a width of 1.5 mm; the tenth linear radiating patch 10 has a length of 9.5 mm and a width of 1.7 mm; the eleventh linear radiating patch 11 has a length of 17 mm and a width of 5.52 mm.
Optionally, the slot line setting size and the preset slotting mode of the FPC antenna at the 433MHz frequency band provided by the embodiment of the present disclosure are: the length of the first slot line 13 is 19.8 mm, and the width of the first slot line is 0.7 mm; the length of the second slot line 14 is 4.7 mm, the first side of the width is a straight line, the length of the straight line is 4.7 mm, the second side of the width is an arc line, the radian of the arc line is 55.4 degrees, the arc length is 4.9 mm, the first end of the second slot line 14 is connected with the second end of the first slot line 13 through an arc, the arc length of the arc connection is 1.5 mm, and the radian is 156 degrees; the length of the third slot line 15 is 10 mm, the width of the third slot line 15 is 1.2 mm, and the first end of the third slot line 15 is directly connected with the second end of the second slot line 14; the length of the fourth slot line 16 is 20 mm, the width of the fourth slot line 16 is 2 mm, the first end of the fourth slot line 16 is directly connected with the second end of the third slot line 15, and the connection angle is 115 degrees; the length of the fifth slot line 17 is 11.5 mm, the width of the fifth slot line 17 is 1.6 mm, the first end of the fifth slot line 17 is directly connected with the second end of the fourth slot line 16, and the connection angle is 115 degrees; the length of the sixth slot line 18 is 28 mm, the width of the sixth slot line 18 is 1.2 mm, the first end of the sixth slot line 18 is connected with the second end of the fifth slot line 17 through an arc, the arc length of the arc connection is 2 mm, and the radian is 126 degrees; the length of the seventh slot line 19 is 8.6 mm, the width of the seventh slot line is 0.8 mm, the seventh slot line 19 and the sixth slot line 18 are directly connected, and the connection angle is 67 degrees; the eighth slot line 20 has a length of 17 mm and a width of 1.3 mm, and the first end of the eighth slot line 20 and the second end of the seventh slot line 19 are directly connected to each other at a connection angle of 115 °.
Optionally, the FPC antenna at 433MHz frequency band provided in the embodiment of the present disclosure further includes:
an AD glue layer 24 is arranged between the PI substrate 23 and the radiation unit 25.
Optionally, the FPC antenna at 433MHz frequency band provided in the embodiment of the present disclosure includes:
the radiation unit 25 is a single-sided electrolytic copper foil, the thickness of the single-sided electrolytic copper foil is 14 μm, and the copper content of the single-sided electrolytic copper foil is greater than or equal to 90%.
Optionally, the FPC antenna at 433MHz frequency band provided in the embodiment of the present disclosure includes:
the feed point 12 is connected with the circuit board of the FPC antenna through a thimble.
As shown in fig. 4, optionally, the FPC antenna in the 433MHz frequency band provided in the embodiment of the present disclosure includes:
the maximum gain of the FPC antenna is-9.8 dBi.
As shown in fig. 5 and fig. 6, optionally, the frequency of the FPC antenna with the 433MHz frequency band provided by the embodiment of the present disclosure is 420MHz-440MHz, and the bandwidth is 30 MHz.
The disclosed embodiments provide a sensor product, comprising: a housing; a PCB circuit board; a power supply device; the FPC antenna device with the 433MHz frequency band in the disclosed embodiment.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An FPC antenna of 433MHz frequency channel, characterized by, includes:
the polyimide PI base material is provided with a 3M adhesive layer on the lower surface;
the release paper is arranged on the lower surface of the 3M adhesive layer and is bonded with the 3M adhesive layer in a peelable manner;
the radiation unit is arranged on the radiation unit layer, is of a copper-clad structure and is arranged on the upper surface of the PI substrate, and a plurality of radiation sheets are sequentially connected in a preset mode;
the feed point is arranged below the upper surface of the radiation unit and is tightly attached to the radiation unit, and the upper surface of the feed point is provided with a gold-plated layer which is nickel-plated gold; and the combination of (a) and (b),
and the slot line is arranged on the radiation unit layer and divides the radiation unit according to a preset mode.
2. The FPC antenna at 433MHz frequency band of claim 1, wherein the radiating element comprises:
the first straight line radiation piece, the second arc radiation piece, the third straight line radiation piece, the fourth straight line radiation piece, the fifth straight line radiation piece, the sixth arc radiation piece, the seventh straight line radiation piece, the eighth straight line radiation piece, the ninth straight line radiation piece, the tenth straight line radiation piece and the eleventh straight line radiation piece are connected in sequence.
3. The FPC antenna at 433MHz frequency band of claim 1, wherein the preset size of the radiating patch comprises:
the length of the first straight line radiation sheet is 17.8 mm, the width of the first straight line radiation sheet is 1 mm, and the first end of the first straight line radiation sheet is connected to one side of the feed point in a right-angle mode; the arc length, the width and the radian of the second arc radiation piece are respectively 5.45 mm, 1.05 mm and 83 degrees, and the second end of the first arc radiation piece is directly connected with the first end of the second radiation piece; the third linear radiation sheet is 9.8 mm in length and 1.1 mm in width; the length of the fourth linear radiating sheet is 21.7 mm, and the width of the fourth linear radiating sheet is 1.4 mm; the length of the fifth linear radiating sheet is 11.6 mm, and the width of the fifth linear radiating sheet is 1.5 mm; the arc length of the sixth arc radiation sheet is 4.45 mm, the width of the sixth arc radiation sheet is 1.1 mm, and the radian of the sixth arc radiation sheet is 65 degrees; the length of the seventh linear radiating patch is 35.6 mm, and the width of the seventh linear radiating patch is 1.35 mm; the length of the eighth linear radiating patch is 11.5 mm, and the width of the eighth linear radiating patch is 1.5 mm; the ninth linear radiating patch is 19 mm in length and 1.5 mm in width; the length of the tenth linear radiating patch is 9.5 mm, and the width of the tenth linear radiating patch is 1.7 mm; the eleventh linear radiating patch is 17 mm in length and 5.52 mm in width.
4. The FPC antenna at the 433MHz frequency band according to claim 1, wherein the first slot line has a length of 19.8 mm and a width of 0.7 mm; the length of the second slot line is 4.7 mm, the first width side is a straight line, the length of the straight line is 4.7 mm, the second width side is an arc line, the arc length of the arc line is 4.9 mm, the radian is 55.4 degrees, the first end of the second slot line and the second end of the first slot line are connected through an arc, the arc length of the arc connection is 1.5 mm, and the radian is 156 degrees; the length of the third slot line is 10 mm, the width of the third slot line is 1.2 mm, and the first end of the third slot line is directly connected with the second end of the second slot line; the length of the fourth slot line is 20 mm, the width of the fourth slot line is 2 mm, the first end of the fourth slot line is directly connected with the second end of the third slot line, and the connection angle is 115 degrees; the length of the fifth slot line is 11.5 mm, the width of the fifth slot line is 1.6 mm, the first end of the fifth slot line is directly connected with the second end of the fourth slot line, and the connection angle is 115 degrees; the length of the sixth slot line is 28 mm, the width of the sixth slot line is 1.2 mm, the first end of the sixth slot line is connected with the second end of the fifth slot line through an arc, the arc length of the arc connection is 2 mm, and the radian is 126 degrees; the length of the seventh slot line is 8.6 mm, the width of the seventh slot line is 0.8 mm, the seventh slot line and the sixth slot line are directly connected, and the connection angle is 67 degrees; the eighth slot line has a length of 17 mm and a width of 1.3 mm, and the first end of the eighth slot line is directly connected with the second end of the seventh slot line at a connection angle of 115 °.
5. The FPC antenna at 433MHz frequency band of claim 1, further comprising:
an AD adhesive layer is arranged between the PI base material and the radiation unit.
6. The FPC antenna at 433MHz frequency band of claim 1, comprising:
the radiation unit is a single-sided electrolytic copper foil, and the thickness of the single-sided electrolytic copper foil is 14 micrometers.
7. The FPC antenna at 433MHz frequency band of claim 1, further comprising:
the feed point is connected with a circuit board of the FPC antenna through a thimble.
8. The FPC antenna at 433MHz frequency band of claim 1, wherein gain of the FPC antenna is at most-9.8 dBi.
9. The FPC antenna with 433MHz band according to claim 1, wherein said FPC antenna with 433MHz band has a frequency of 420MHz-440MHz and a bandwidth of 30 MHz.
10. A sensor product, comprising:
a housing;
a PCB circuit board;
a power supply device;
an FPC antenna for the 433MHz frequency band as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121947122.3U CN215418590U (en) | 2021-08-19 | 2021-08-19 | FPC antenna and sensor product of 433MHz frequency channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121947122.3U CN215418590U (en) | 2021-08-19 | 2021-08-19 | FPC antenna and sensor product of 433MHz frequency channel |
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| CN215418590U true CN215418590U (en) | 2022-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540783A (en) * | 2021-08-19 | 2021-10-22 | 山东炎一智能科技有限公司 | FPC antenna and sensor product of 433MHz frequency channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540783A (en) * | 2021-08-19 | 2021-10-22 | 山东炎一智能科技有限公司 | FPC antenna and sensor product of 433MHz frequency channel |
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