FPC antenna and Internet of Things equipment

Abstract

The utility model relates to the technical field of wireless communication, and discloses an FPC antenna. The FPC antenna comprises a radiation unit layer, an AD adhesive layer, a polyimide layer, a black oil layer, a double-sided adhesive layer and a release paper layer, the radiation units are arranged on the radiation unit layer, and inflection intervals are arranged between the radiation units; the feeding point is arranged at the upper part of the AD adhesive layer and is connected to the radiation unit layer; and the inductor is arranged at the upper part of the feeding point. By arranging the radiation unit layer, the AD adhesive layer, the polyimide layer, the black oil layer, the double-sided adhesive layer and the release paper layer, the number of layers of the antenna is effectively reduced, the thickness of the antenna is greatly reduced, and by arranging the radiation units and the feeding points and arranging the inflection intervals between the radiation units, the bending capacity of the antenna is greatly improved, and the application scenarios of the antenna are effectively increased. The utility model further discloses the Internet of Things equipment.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, for example, to an FPC antenna and an Internet of Things device. Background Art

[0002] Currently, under the trend of miniaturization and integration of electronic products, as a component for receiving and transmitting radio frequency signals, the design and layout of antennas face increasing challenges. Traditional antennas are mostly manufactured using rigid printed circuit boards, but they have certain limitations in terms of space utilization, weight, flexibility, and adaptability.

[0003] With the development of wireless communication technologies, especially in smartphones and other portable electronic devices, higher requirements are imposed on the size, performance, and adaptability of antennas. To meet these requirements, FPC antennas have emerged. They use flexible materials as substrates, have good flexibility and adaptability, and can better adapt to the design of products.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related technologies:

[0005] During the use of existing FPC antennas, the FPC antennas are relatively thick, resulting in difficulty in bending and installation, and few applicable scenarios. Summary of the Utility Model

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a comprehensive review, nor is it intended to identify key / important constituent elements or delineate the scope of protection of these embodiments. Instead, it serves as a preface to the subsequent detailed description.

[0007] The embodiments of the present disclosure provide an FPC antenna and an Internet of Things device to solve the problem that in the existing technology, the FPC antenna is relatively thick, resulting in difficulty in bending and installation, and few applicable scenarios.

[0008] In some embodiments, the FPC antenna includes:

[0009] A radiation unit layer;

[0010] An AD glue layer disposed below the radiation unit layer;

[0011] A polyimide layer disposed below the AD glue layer;

[0012] A black oil layer disposed below the polyimide layer;

[0013] A double-sided adhesive layer disposed below the black oil layer;

[0014] A release paper layer disposed below the double-sided adhesive layer;

[0015] Radiating elements, which are arranged on the radiating element layer, and there are folding intervals between the radiating elements;

[0016] Feeding points, which are arranged above the AD adhesive layer and connected to the radiating element layer;

[0017] Inductors, which are arranged above the feeding points.

[0018] In some embodiments, the Internet of Things device includes an FPC antenna as described in the above embodiments.

[0019] An FPC antenna and an Internet of Things device provided by an embodiment of the present disclosure can achieve the following technical effects:

[0020] By arranging a radiating element layer, an AD adhesive layer, a polyimide layer, a black oil layer, a double-sided adhesive layer and a release paper layer, the number of antenna layers is effectively reduced, and the thickness of the antenna is greatly reduced. By arranging radiating elements and feeding points, and by arranging folding intervals between the radiating elements, the bending ability of the antenna is greatly increased, and the application scenarios of the antenna are effectively increased.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. Description of the Drawings

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0023] Figure 1 is a cross-sectional schematic diagram of an FPC antenna provided by an embodiment of the present disclosure;

[0024] Figure 2 is an overall structural schematic diagram of an FPC antenna provided by an embodiment of the present disclosure;

[0025] Figure 3 is an inductance structural schematic diagram of an FPC antenna provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of a first radiating part of an FPC antenna provided by an embodiment of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of a second radiating part of an FPC antenna provided by an embodiment of the present disclosure;

[0028] Figure 6 is a structural schematic diagram of a third radiating part of an FPC antenna provided by an embodiment of the present disclosure;

[0029] Figure 7 It is a schematic structural diagram of a fourth radiation part of an FPC antenna provided by an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 10: Radiation element layer; 20: AD adhesive layer; 30: Polyimide layer; 40: Black oil layer; 50: Double-sided adhesive layer; 60: Release paper layer; 70: First radiation part; 80: Second radiation part; 90: Third radiation part; 100: Fourth radiation part; 110: First feeding point; 120: Second feeding point; 130: Third feeding point; 140: Fourth feeding point; 150: Inductor; 160: First folding interval; 170: Second folding interval; 180: Third folding interval; 190: Fourth folding interval; 200: Low-frequency oscillator; 210: Connecting wire; 220: High-frequency oscillator; 230: First radiation element; 240: Second radiation element; 250: Third radiation element; 260: Fourth radiation element; 270: Fifth radiation element; 280: Sixth radiation element; 290: Seventh radiation element; 300: Eighth radiation element; 310: Ninth radiation element; 320: Tenth radiation element; 330: Eleventh radiation element; 340: Twelfth radiation element; 350: Thirteenth radiation element; 360: Fourteenth radiation element; 370: Fifteenth radiation element; 380: Sixteenth radiation element; 390: Seventeenth radiation element; 400: Eighteenth radiation element; 410: Nineteenth radiation element; 420: Twentieth radiation element; 430: Twenty-first radiation element; 440: Twenty-second radiation element; 450: Twenty-third radiation element; 460: Twenty-fourth radiation element; 470: Twenty-fifth radiation element; 480: Twenty-sixth radiation element; 490: Twenty-seventh radiation element; 500: Twenty-eighth radiation element; 510: Twenty-ninth radiation element; 520: Thirtieth radiation element; 530: Thirty-first radiation element; 540: Thirty-second radiation element; 550: Thirty-third radiation element; 560: Thirty-fourth radiation element; 570: Thirty-fifth radiation element; 580: Thirty-sixth radiation element; 590: Thirty-seventh radiation element; 600: Thirty-eighth radiation element; 610: Thirty-ninth radiation element; 620: Fortieth radiation element; 630: Forty-first radiation element; 640: Forty-second radiation element; 650: Forty-third radiation element; 660: Forty-fourth radiation element; 670: Forty-fifth radiation element; 680: Forty-sixth radiation element; 690: Forty-seventh radiation element; 700: Forty-eighth radiation element; 710: Forty-ninth radiation element; 720: Fiftieth radiation element; 730: Fifty-first radiation element; 740: Fifty-second radiation element; 750: Fifty-third radiation element; 760: Fifty-fourth radiation element; 770: Fifty-fifth radiation element; 780: Fifty-sixth radiation element; 790: Fifty-seventh radiation element; 800: Fifty-eighth radiation element; 810: Fifty-ninth radiation element; 820: Sixtieth radiation element; 830: Sixty-first radiation element; 840: Sixty-second radiation element; 850: Sixty-third radiation element; 860: Sixty-fourth radiation element;870: The sixty-fifth radiation unit; 880: The sixty-sixth radiation unit; 890: The sixty-seventh radiation unit; 900: The sixty-eighth radiation unit; 910: The sixty-ninth radiation unit; 920: The seventieth radiation unit; 930: The seventy-first radiation unit; 940: The seventy-second radiation unit; 950: The seventy-third radiation unit; 960: The seventy-fourth radiation unit; 970: The seventy-fifth radiation unit; 980: The seventy-sixth radiation unit; 990: The seventy-seventh radiation unit; 1000: The seventy-eighth radiation unit; 1010: The seventy-ninth radiation unit; 1020: The eightieth radiation unit; 1030: The eighty-first radiation unit; 1040: The eighty-second radiation unit; 1050: The eighty-third radiation unit; 1060: The eighty-fourth radiation unit; 1070: The eighty-fifth radiation unit; 1080: The eighty-sixth radiation unit; 1090: The eighty-seventh radiation unit; 1100: The eighty-eighth radiation unit; 1110: The eighty-ninth radiation unit; 1120: The ninetieth radiation unit; 1130: The ninety-first radiation unit; 1140: The ninety-second radiation unit; 1150: The ninety-third radiation unit; 1160: The ninety-fourth radiation unit; 1170: The ninety-fifth radiation unit; 1180: The ninety-sixth radiation unit; 1190: The ninety-seventh radiation unit; 1200: The ninety-eighth radiation unit; 1210: The ninety-ninth radiation unit; 1220: The one-hundredth radiation unit; 1230: The one-hundred-and-first radiation unit; 1240: The one-hundred-and-second radiation unit; 1250: The one-hundred-and-third radiation unit; 1260: The one-hundred-and-fourth radiation unit; 1270: The one-hundred-and-fifth radiation unit; 1280: The one-hundred-and-sixth radiation unit; 1290: The one-hundred-and-seventh radiation unit; 1300: The one-hundred-and-eighth radiation unit.; Detailed implementation manners

[0032] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration purposes only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0033] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Unless otherwise specified, the term "plurality" means two or more.

[0037] In the embodiments of the present disclosure, the character " / " indicates that the front and rear objects are in an "or" relationship. For example, A / B means: A or B.

[0038] The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0039] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0040] Currently, in the process of using existing FPC antennas, there are problems that the FPC antennas are relatively thick, resulting in difficulty in bending and installation, and few applicable scenarios.

[0041] Combined Figure 1-2 As shown, the embodiments of the present disclosure provide an FPC antenna, including a radiation unit layer 10;

[0042] An AD glue layer 20, arranged below the radiation unit layer 10;

[0043] A polyimide layer 30, arranged below the AD glue layer 20;

[0044] The black oil layer 40 is disposed below the polyimide layer 30;

[0045] The double-sided adhesive layer 50 is disposed below the black oil layer 40;

[0046] The release paper layer 60 is disposed below the double-sided adhesive layer 50;

[0047] The radiation units are disposed on the radiation unit layer 10, and there are folding intervals between the radiation units;

[0048] The feeding points are disposed on the upper part of the AD adhesive layer 20 and are connected to the radiation unit layer 10;

[0049] The inductor 150 is disposed above the feeding points.

[0050] By using an FPC antenna provided by an embodiment of the present disclosure, the number of antenna layers can be effectively reduced by arranging the radiation unit layer 10, the AD adhesive layer 20, the polyimide layer 30, the black oil layer 40, the double-sided adhesive layer 50, and the release paper layer 60, and the thickness of the antenna is greatly reduced. By arranging the radiation units and the feeding points, and by arranging folding intervals between the radiation units, the folding ability of the antenna is greatly increased through the arranged folding intervals, and the application scenarios of the antenna are effectively increased.

[0051] Combined Figure 2 As shown, optionally, the radiation units include a first radiation part 70, a second radiation part 80, a third radiation part 90, and a fourth radiation part 100; the first radiation part 70 and the second radiation part 80 are symmetric; the third radiation part 90 and the fourth radiation part 100 are symmetric.

[0052] By adopting a symmetric structure, the folding ability of the antenna can be better enhanced, and the application scenarios of the antenna are effectively increased.

[0053] Combined Figure 2 As shown, optionally, the feeding points include a first feeding point 110, a second feeding point 120, a third feeding point 130, and a fourth feeding point 140; the first feeding point 110 is connected to the first radiation part 70; the second feeding point 120 is connected to the second radiation part 80; the third feeding point 130 is connected to the third radiation part 90; the fourth feeding point 140 is connected to the fourth radiation part 100; the first feeding point 110 and the second feeding point 120 are trapezoidal, and the third feeding point 130 and the fourth feeding point 140 are square.

[0054] Combined Figure 3As shown, optionally, the inductor 150 includes a low-frequency oscillator 200, a connection line 210, and a high-frequency oscillator 220; the low-frequency oscillator 200 is disposed above the first feeding point 110; the high-frequency oscillator 220 is disposed above the second feeding point 120; the connection line 210 connects the low-frequency oscillator 200 and the high-frequency oscillator 220; the low-frequency oscillator 200 and the high-frequency oscillator 220 are isosceles trapezoids, and the connection line 210 is a rectangle.

[0055] Combined with Figure 2 As shown, optionally, the folding intervals include a first folding interval 160, a second folding interval 170, a third folding interval 180, and a fourth folding interval 190; the first folding interval 160 is disposed between the first radiation portion 70 and the third radiation portion 90; the second folding interval 170 is disposed between the first radiation portion 70 and the second radiation portion 80; the third folding interval 180 is disposed between the second radiation portion 80 and the fourth radiation portion 100; the fourth folding interval 190 is disposed between the second radiation portion 80 and the fourth radiation portion 100; the first folding interval 160, the second folding interval 170, the third folding interval 180, and the fourth folding interval 190 have the same width, the first folding interval 160 and the third folding interval 180 have the same length, and the second folding interval 170 and the fourth folding interval 190 have the same length.

[0056] Combined with Figure 4 As shown, optionally, the first radiation portion 70 includes a first radiation unit 230, a second radiation unit 240, a third radiation unit 250, a fourth radiation unit 260, a fifth radiation unit 270, a sixth radiation unit 280, a seventh radiation unit 290, an eighth radiation unit 300, a ninth radiation unit 310, a tenth radiation unit 320, an eleventh radiation unit 330, a twelfth radiation unit 340, a thirteenth radiation unit 350, a fourteenth radiation unit 360, a fifteenth radiation unit 370, a sixteenth radiation unit 380, and a seventeenth radiation unit 390 that are connected in sequence. The two adjacent radiation units of the first radiation portion 70 are perpendicular to each other, and the first radiation unit 230 is vertically connected to the first feeding point 110.

[0057] Combined with Figure 5As shown, optionally, the second radiation portion 80 includes an eighteenth radiation element 400, a nineteenth radiation element 410, a twentieth radiation element 420, a twenty-first radiation element 430, a twenty-second radiation element 440, a twenty-third radiation element 450, a twenty-fourth radiation element 460, a twenty-fifth radiation element 470, a twenty-sixth radiation element 480, a twenty-seventh radiation element 490, a twenty-eighth radiation element 500, a twenty-ninth radiation element 510, a thirtieth radiation element 520, a thirty-first radiation element 530, a thirty-second radiation element 540, a thirty-third radiation element 550, and a thirty-fourth radiation element 560 that are connected in sequence. The two adjacent radiation elements of the second radiation portion 80 are perpendicular to each other, and the eighteenth radiation element 400 is perpendicularly connected to the second feeding point 120.

[0058] Combined Figure 6 As shown, optionally, the third radiation portion includes a thirty-fifth radiation element 570, a thirty-sixth radiation element 580, a thirty-seventh radiation element 590, a thirty-eighth radiation element 600, a thirty-ninth radiation element 610, a fortieth radiation element 620, a forty-first radiation element 630, a forty-second radiation element 640, a forty-third radiation element 650, a forty-fourth radiation element 660, a forty-fifth radiation element 670, a forty-sixth radiation element 680, a forty-seventh radiation element 690, a forty-eighth radiation element 700, a forty-ninth radiation element 710, a fiftieth radiation element 720, a fifty-first radiation element 730, a fifty-second radiation element 740, a fifty-third radiation element 750, a fifty-fourth radiation element 760, a fifty-fifth radiation element 770, a fifty-sixth radiation element 780, a fifty-seventh radiation element 790, a fifty-eighth radiation element 800, a fifty-ninth radiation element 810, a sixtieth radiation element 820, a sixty-first radiation element 830, a sixty-second radiation element 840, a sixty-third radiation element 850, a sixty-fourth radiation element 860, a sixty-fifth radiation element 870, a sixty-sixth radiation element 880, a sixty-seventh radiation element 890, a sixty-eighth radiation element 900, a sixty-ninth radiation element 910, and a seventieth radiation element 920 that are connected in sequence. The two adjacent radiation elements of the third radiation portion 90 are perpendicular to each other, and the thirty-fifth radiation element 570 is perpendicularly connected to the third feeding point 130.

[0059] Combined Figure 7As shown, optionally, the fourth radiation unit 100 includes a seventy-first radiation unit 930, a seventy-second radiation unit 940, a seventy-third radiation unit 950, a seventy-fourth radiation unit 960, a seventy-fifth radiation unit 970, a seventy-sixth radiation unit 980, a seventy-seventh radiation unit 990, a seventy-eighth radiation unit 1000, a seventy-ninth radiation unit 1010, an eightieth radiation unit 1020, an eighty-first radiation unit 1030, an eighty-second radiation unit 1040, an eighty-third radiation unit 1050, an eighty-fourth radiation unit 1060, an eighty-fifth radiation unit 1070, an eighty-sixth radiation unit 1080, an eighty-seventh radiation unit 1090, an eighty-eighth radiation unit 1100, an eighty-ninth radiation unit 1110, a ninetieth radiation unit 1120, a ninety-first radiation unit 1130, a ninety-second radiation unit 1140, a ninety-third radiation unit 1150, a ninety-fourth radiation unit 1160, a ninety-fifth radiation unit 1170, a ninety-sixth radiation unit 1180, a ninety-seventh radiation unit 1190, a ninety-eighth radiation unit 1200, a ninety-ninth radiation unit 1210, a hundredth radiation unit 1220, a hundred and first radiation unit 1230, a hundred and second radiation unit 1240, a hundred and third radiation unit 1250, a hundred and fourth radiation unit 1260, a hundred and fifth radiation unit 1270, a hundred and sixth radiation unit 1280, a hundred and seventh radiation unit 1290, and a hundred and eighth radiation unit 1300 which are connected in sequence. Two adjacent radiation units of the fourth radiation unit 100 are perpendicular to each other, and the seventy-first radiation unit 930 is perpendicularly connected to the fourth feeding point 140.

[0060] An embodiment of the present disclosure provides an Internet of Things device, including an FPC antenna of the foregoing embodiment.

[0061] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. Embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can vary. Some parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An FPC antenna, characterized in that, Comprising: Radiating element layer; AD adhesive layer, disposed below the radiating element layer; Polyimide layer, disposed below the AD adhesive layer; Black oil layer, disposed below the polyimide layer; Double-sided adhesive layer, disposed below the black oil layer; Release paper layer, disposed below the double-sided adhesive layer; Radiating elements, disposed on the radiating element layer, with a folded-back interval provided between the radiating elements; Feeding points, disposed above the AD adhesive layer and connected to the radiating element layer; Inductor, disposed above the feeding points.

2. The FPC antenna according to claim 1, characterized in that, The radiating elements include a first radiating portion, a second radiating portion, a third radiating portion, and a fourth radiating portion; the first radiating portion and the second radiating portion are symmetric; the third radiating portion and the fourth radiating portion are symmetric.

3. The FPC antenna according to claim 2, wherein, The feeding points include a first feeding point, a second feeding point, a third feeding point, and a fourth feeding point; the first feeding point is connected to the first radiating portion; the second feeding point is connected to the second radiating portion; the third feeding point is connected to the third radiating portion; The fourth feeding point is connected to the fourth radiating portion; the first feeding point and the second feeding point are trapezoidal, and the third feeding point and the fourth feeding point are square.

4. The FPC antenna according to claim 3, wherein The inductor includes a low-frequency oscillator, a connecting wire, and a high-frequency oscillator; the low-frequency oscillator is disposed above the first feeding point; the high-frequency oscillator is disposed above the second feeding point; the connecting wire is connected to the low-frequency oscillator and the high-frequency oscillator; the low-frequency oscillator and the high-frequency oscillator are isosceles trapezoidal, and the connecting wire is rectangular.

5. The FPC antenna according to claim 2, characterized in that, The folded-back intervals include a first folded-back interval, a second folded-back interval, a third folded-back interval, and a fourth folded-back interval; the first folded-back interval is provided between the first radiating portion and the third radiating portion; the second folded-back interval is provided between the first radiating portion and the second radiating portion; the third folded-back interval is provided between the second radiating portion and the fourth radiating portion; the fourth folded-back interval is provided between the second radiating portion and the fourth radiating portion; the first folded-back interval, the second folded-back interval, the third folded-back interval, and the fourth folded-back interval have the same width, the first folded-back interval and the third folded-back interval have the same length, and the second folded-back interval and the fourth folded-back interval have the same length.

6. The FPC antenna according to claim 3, wherein, The first radiating portion includes a first radiating element, a second radiating element, a third radiating element, a fourth radiating element, a fifth radiating element, a sixth radiating element, a seventh radiating element, an eighth radiating element, a ninth radiating element, a tenth radiating element, an eleventh radiating element, a twelfth radiating element, a thirteenth radiating element, a fourteenth radiating element, a fifteenth radiating element, a sixteenth radiating element, and a seventeenth radiating element connected in sequence. Adjacent radiating elements in the first radiating portion are perpendicular to each other, and the first radiating element is perpendicularly connected to the first feeding point.

7. The FPC antenna according to claim 3, wherein, The second radiation part includes the eighteenth radiation unit, the nineteenth radiation unit, the twentieth radiation unit, the twenty-first radiation unit, the twenty-second radiation unit, the twenty-third radiation unit, the twenty-fourth radiation unit, the twenty-fifth radiation unit, the twenty-sixth radiation unit, the twenty-seventh radiation unit, the twenty-eighth radiation unit, the twenty-ninth radiation unit, the thirtieth radiation unit, the thirty-first radiation unit, the thirty-second radiation unit, the thirty-third radiation unit, and the thirty-fourth radiation unit which are connected in sequence. The two adjacent radiation units of the second radiation part are perpendicular to each other, and the eighteenth radiation unit is perpendicularly connected to the second feeding point.

8. The FPC antenna according to claim 3, characterized in that, The third radiation part includes the thirty-fifth radiation unit, the thirty-sixth radiation unit, the thirty-seventh radiation unit, the thirty-eighth radiation unit, the thirty-ninth radiation unit, the fortieth radiation unit, the forty-first radiation unit, the forty-second radiation unit, the forty-third radiation unit, the forty-fourth radiation unit, the forty-fifth radiation unit, the forty-sixth radiation unit, the forty-seventh radiation unit, the forty-eighth radiation unit, the forty-ninth radiation unit, the fiftieth radiation unit, the fifty-first radiation unit, the fifty-second radiation unit, the fifty-third radiation unit, the fifty-fourth radiation unit, the fifty-fifth radiation unit, the fifty-sixth radiation unit, the fifty-seventh radiation unit, the fifty-eighth radiation unit, the fifty-ninth radiation unit, the sixtieth radiation unit, the sixty-first radiation unit, the sixty-second radiation unit, the sixty-third radiation unit, the sixty-fourth radiation unit, the sixty-fifth radiation unit, the sixty-sixth radiation unit, the sixty-seventh radiation unit, the sixty-eighth radiation unit, the sixty-ninth radiation unit, and the seventieth radiation unit which are connected in sequence. The two adjacent radiation units of the third radiation part are perpendicular to each other, and the thirty-fifth radiation unit is perpendicularly connected to the third feeding point.

9. The FPC antenna according to claim 3, characterized in that, The fourth radiation part includes the seventy-first radiation unit, the seventy-second radiation unit, the seventy-third radiation unit, the seventy-fourth radiation unit, the seventy-fifth radiation unit, the seventy-sixth radiation unit, the seventy-seventh radiation unit, the seventy-eighth radiation unit, the seventy-ninth radiation unit, the eightieth radiation unit, the eighty-first radiation unit, the eighty-second radiation unit, the eighty-third radiation unit, the eighty-fourth radiation unit, the eighty-fifth radiation unit, the eighty-sixth radiation unit, the eighty-seventh radiation unit, the eighty-eighth radiation unit, the eighty-ninth radiation unit, the ninetieth radiation unit, the ninety-first radiation unit, the ninety-second radiation unit, the ninety-third radiation unit, the ninety-fourth radiation unit, the ninety-fifth radiation unit, the ninety-sixth radiation unit, the ninety-seventh radiation unit, the ninety-eighth radiation unit, the ninety-ninth radiation unit, the one-hundredth radiation unit, the one-hundred-and-first radiation unit, the one-hundred-and-second radiation unit, the one-hundred-and-third radiation unit, the one-hundred-and-fourth radiation unit, the one-hundred-and-fifth radiation unit, the one-hundred-and-sixth radiation unit, the one-hundred-and-seventh radiation unit, and the one-hundred-and-eighth radiation unit which are connected in sequence. The two adjacent radiation units of the fourth radiation part are perpendicular to each other, and the seventy-first radiation unit is perpendicularly connected to the fourth feeding point.

10. An Internet of Things device, characterized in that, Comprising an FPC antenna according to any one of claims 1 to 9.

Images