Novel FPC antenna and high-precision wireless temperature and humidity sensor

Abstract

The utility model relates to the technical field of wireless communication, and discloses a novel FPC antenna. The novel FPC antenna comprises a radiation part, and the radiation part comprises a first radiation part, a second radiation part, a third radiation part and a fourth radiation part. An AD adhesive layer; a black oil layer; a polyimide layer; a double-sided adhesive layer; a release paper layer; a feeding point; the inductors comprise a first inductor and a second inductor, the first inductor is arranged on the first radiation part and the third radiation part, and the second inductor is arranged on the second radiation part and the fourth radiation part; the radiation parts are spaced; and a positioning part. By arranging the positioning part, the positioning precision in the FPC antenna installation process is improved, the installation error is effectively reduced, and by arranging the first inductor and the second inductor, the high-low frequency band performance of the first radiation part, the second radiation part, the third radiation part and the fourth radiation part is effectively improved. And the high-low frequency band performance and the signal transmission capability of the antenna are enhanced. The utility model further discloses a high-precision wireless temperature and humidity sensor.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, specifically to a novel FPC antenna and a high-precision wireless temperature and humidity sensor. Background Technology

[0002] Currently, with the rapid iteration of 5G communication, IoT, and consumer electronics, antenna terminal products are accelerating their evolution towards thinner, lighter, more flexible, and multi-scenario adaptability, placing higher demands on antenna performance and structural design. Traditional rigid antennas, limited by material hardness and size, face challenges such as manual installation and poor positioning accuracy adaptability in foldable devices, wearable devices, and irregularly shaped curved terminals using FPC antennas.

[0003] Compared to traditional solutions, FPC antennas can achieve a perfect fit with the curved surface of the terminal through customized circuit design. While maintaining the stability of high-frequency signal transmission, they significantly reduce the thickness and weight of the device. Therefore, they are widely used in smartphones, TWS earphones, IoT devices and other fields, driving innovation in terminal product form.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In FPC antenna installation, many FPC antennas are installed manually, which can easily lead to errors in installation position and inaccurate positioning accuracy. With social development and technological progress, higher requirements are placed on the high and low frequency band performance of FPC antennas. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a novel FPC antenna and a high-precision wireless temperature and humidity sensor to solve the problems of FPC antenna installation errors, inaccurate positioning accuracy, and insufficient high and low frequency band performance.

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

[0009] The radiating section includes a first radiating section, a second radiating section, a third radiating section, and a fourth radiating section;

[0010] An AD adhesive layer is disposed at the lower part of the radiating portion;

[0011] A black oil layer is disposed below the AD adhesive layer;

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

[0013] A double-sided adhesive layer is disposed below the polyimide layer;

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

[0015] A feed point is connected to the radiating part. The feed point includes a first feed point, a second feed point, a third feed point, and a fourth feed point. The first feed point is connected to the first radiating part, the second feed point is connected to the second radiating part, the third feed point is connected to the third radiating part, and the fourth feed point is connected to the fourth radiating part.

[0016] An inductor, including a first inductor and a second inductor, wherein the first inductor is disposed in the first radiating portion and the third radiating portion, and the second inductor is disposed in the second radiating portion and the fourth radiating portion;

[0017] The radiating part spacing includes a first radiating spacing disposed between the first radiating part and the third radiating part, a second radiating spacing disposed between the first radiating part and the second radiating part, a third radiating spacing disposed between the second radiating part and the fourth radiating part, and a fourth radiating spacing disposed between the third radiating part and the fourth radiating part.

[0018] The positioning part includes a first positioning part, a second positioning part, a third positioning part, and a fourth positioning part. The first positioning part is disposed on the right side of the first radiating part, the second positioning part is disposed on the left side of the second radiating part, the third positioning part is disposed on the right side of the third radiating part, and the fourth positioning part is disposed on the left side of the fourth radiating part.

[0019] In some embodiments, the high-precision wireless temperature and humidity sensor includes a novel FPC antenna as described in the foregoing embodiments.

[0020] The novel FPC antenna and high-precision wireless temperature and humidity sensor provided in this disclosure can achieve the following technical effects:

[0021] By setting up the first positioning part, the second positioning part, the third positioning part and the fourth positioning part, the positioning accuracy during the installation process of the FPC antenna is improved, and the installation error is effectively reduced. By setting up the first inductor and the second inductor, the high and low frequency band performance of the first radiating part, the second radiating part, the third radiating part and the fourth radiating part are effectively improved, thereby enhancing the high and low frequency band performance and signal transmission capability of the antenna.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is an overall schematic diagram of a novel FPC antenna provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic cross-sectional view of a novel FPC antenna provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of the feed point structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of the inductor structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of the overall structure of the first and second inductors of a novel FPC antenna provided in an embodiment of this disclosure;

[0029] Figure 6 This is an overall schematic diagram of the radiating part of a novel FPC antenna provided in an embodiment of this disclosure;

[0030] Figure 7 This is a schematic diagram of the first radiating part of a novel FPC antenna provided in an embodiment of this disclosure;

[0031] Figure 8 This is a schematic diagram of the second radiating part structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of the third radiating part structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0033] Figure 10 This is a schematic diagram of the fourth radiating section structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0034] Figure 11 This is a schematic diagram of the positioning part structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0035] Figure 12 This is a schematic diagram of the positioning point structure of a novel FPC antenna provided in an embodiment of this disclosure;

[0036] Figure 13This is a schematic diagram of the radiating section spacing structure of a novel FPC antenna provided in an embodiment of this disclosure.

[0037] Attached Figure

[0038] 10: Feed point; 20: Radiating part; 30: Inductor; 40: Polyimide layer; 50: Radiating part spacing; 60: Positioning part; 70: Release paper layer; 80: Double-sided adhesive layer; 90: Black oil layer; 100: AD adhesive layer; 110: Radiating unit layer; 120: First feed point; 130: Second feed point; 140: Third feed point; 150: Third feed point; 160: First inductor; 170: Second inductor; 180: First low-frequency oscillator; 190: First connecting line; 200: First high-frequency oscillator; 210: Second high-frequency oscillator; 220: Second connecting line; 230: Second low-frequency oscillator; 240: First radiating part; 250: Second radiating part; 260: Third radiating part; 270: Fourth radiating part 280: First radiation unit; 290: Second radiation unit; 300: Third radiation unit; 310: Fourth radiation unit; 320: Fifth radiation unit; 330: Sixth radiation unit; 340: Seventh radiation unit; 350: Eighth radiation unit; 360: Ninth radiation unit; 370: Tenth radiation unit; 380: Eleventh radiation unit; 390: Twelfth radiation unit; 400: Thirteenth radiation unit; 410: Fourteenth radiation unit; 420: Fifteenth radiation unit; 430: Sixteenth radiation unit; 440: Seventeenth radiation unit; 450: Eighteenth radiation unit; 460: Nineteenth radiation unit; 470: Twentieth radiation unit; 480: Twenty-first radiation unit; 490: 22nd Radiation Unit; 500: 23rd Radiation Unit; 510: 24th Radiation Unit; 520: 25th Radiation Unit; 530: 26th Radiation Unit; 540: 27th Radiation Unit; 550: 28th Radiation Unit; 560: 29th Radiation Unit; 570: 30th Radiation Unit; 580: 31st Radiation Unit; 590: 32nd Radiation Unit; 600: 33rd Radiation Unit; 610: 34th Radiation Unit; 620: 35th Radiation Unit; 630: 36th Radiation Unit; 640: 37th Radiation Unit; 650: 38th Radiation Unit; 660: 39th Radiation Unit; 670: 40th Radiation Unit; 680: 40th Radiation Unit Radiation unit 1; 690: Radiation unit 42; 700: Radiation unit 43; 710: Radiation unit 44; 720: Radiation unit 45; 730: Radiation unit 46; 740: Radiation unit 47; 750: Radiation unit 48; 760: Radiation unit 49; 770: Radiation unit 50; 780: Radiation unit 51; 790: Radiation unit 52; 800: Radiation unit 53; 810: Radiation unit 54; 820: Radiation unit 55; 830: Radiation unit 56; 840: Radiation unit 57; 850: Radiation unit 58; 860: Radiation unit 59; 870: Radiation unit 60;880: Radiation Unit 61; 890: Radiation Unit 62; 900: Radiation Unit 63; 910: Radiation Unit 64; 920: Radiation Unit 65; 930: Radiation Unit 66; 940: Radiation Unit 67; 950: Radiation Unit 68; 960: Radiation Unit 69; 970: Radiation Unit 70; 980: Radiation Unit 71; 990: Radiation Unit 72; 1000: Radiation Unit 73; 1010: Radiation Unit 74; 1020: Radiation Unit 75; 1030: Radiation Unit 76; 1040: Radiation Unit 77; 1050: Radiation Unit 78; 1060: Radiation Unit 79 Radiation unit; 1070: 80th radiation unit; 1080: 81st radiation unit; 1090: 82nd radiation unit; 1100: 83rd radiation unit; 1110: 84th radiation unit; 1120: 85th radiation unit; 1130: 86th radiation unit; 1140: 87th radiation unit; 1150: 88th radiation unit; 1160: 89th radiation unit; 1170: 90th radiation unit; 1180: 91st radiation unit; 1190: 92nd radiation unit; 1200: 93rd radiation unit; 1210: 94th radiation unit; 1220: 95th radiation unit; 1230: 96th radiation unit; 1240: 97th radiation unit; Radiation unit; 1250: 98th radiation unit; 1260: 99th radiation unit; 1270: 100th radiation unit; 1280: 101st radiation unit; 1290: 102nd radiation unit; 1300: 103rd radiation unit; 1310: 104th radiation unit; 1320: 105th radiation unit; 1330: 106th radiation unit; 1340: 107th radiation unit; 1350: 108th radiation unit; 1360: 109th radiation unit; 1370: 110th radiation unit; 1380: 111th radiation unit; 1390: 112th radiation unit; 1400: 113th radiation unit; 1410: Radiation Unit 114; Radiation Unit 115; Radiation Unit 116; Radiation Unit 117; Radiation Unit 118; Radiation Unit 119; Radiation Unit 120; Radiation Unit 119; Radiation Unit 110; First Positioning Unit; Second Positioning Unit; Third Positioning Unit; Fourth Positioning Unit; First Positioning Point; Second Positioning Point; Third Positioning Point; Fourth Positioning Point; Fifth Positioning Point; Sixth Positioning Point; Seventh Positioning Point; Eighth Positioning Point; Ninth Positioning Point;1610: Tenth positioning point; 1620: Eleventh positioning point; 1630: Twelfth positioning point; 1640: Thirteenth positioning point; 1650: Fourteenth positioning point; 1660: Fifteenth positioning point; 1670: Sixteenth positioning point; 1680: Seventeenth positioning point; 1690: Eighteenth positioning point; 1700: Nineteenth positioning point; 1710: Twentieth positioning point. Detailed Implementation

[0039] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full 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 simplified in their depiction to simplify the drawings.

[0040] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure 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 can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0043] Unless otherwise stated, the term "multiple" means two or more.

[0044] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0047] Currently, many FPC antennas are installed manually, which can easily lead to errors in installation position and inaccurate positioning. With social development and technological progress, higher requirements are being placed on the high and low frequency band performance of FPC antennas, requiring them to have stronger high and low frequency band performance.

[0048] Combination Figure 1-4 , Figure 6 , Figure 11 and Figure 13 As shown, this disclosure provides a novel FPC antenna, including a radiating section 20, comprising a first radiating section 240, a second radiating section 250, a third radiating section 260, and a fourth radiating section 270;

[0049] AD adhesive layer 100 is disposed at the lower part of radiating part 20;

[0050] Black oil layer 90 is located below AD adhesive layer 100;

[0051] A polyimide layer 40 is disposed below the black oil layer 90;

[0052] Double-sided adhesive layer 80 is disposed below polyimide layer 40;

[0053] Release paper layer 70 is disposed below double-sided adhesive layer 80;

[0054] Feed point 10 is connected to radiating part 20. Feed point 10 includes first feed point 120, second feed point 130, third feed point 140 and fourth feed point 150. First feed point 120 is connected to first radiating part 240, second feed point 130 is connected to second radiating part 250, third feed point 140 is connected to third radiating part 260 and fourth feed point 150 is connected to fourth radiating part 270.

[0055] Inductor 30 includes a first inductor 160 and a second inductor 170. The first inductor 160 is disposed in the first radiating part 240 and the third radiating part 260, and the second inductor 170 is disposed in the second radiating part 250 and the fourth radiating part 270.

[0056] The radiating interval 50 includes a first radiating interval 1720 disposed between the first radiating interval 240 and the third radiating interval 260, a second radiating interval 1730 disposed between the first radiating interval 240 and the second radiating interval 250, a third radiating interval 1740 disposed between the second radiating interval 250 and the fourth radiating interval 270, and a fourth radiating interval 1750 disposed between the third radiating interval 260 and the fourth radiating interval 270.

[0057] The positioning unit 60 includes a first positioning unit 1480, a second positioning unit 1490, a third positioning unit 1500, and a fourth positioning unit 1510. The first positioning unit 1480 is located to the right of the first radiating unit 240, the second positioning unit 1490 is located to the left of the second radiating unit 250, the third positioning unit 1500 is located to the right of the third radiating unit 260, and the fourth positioning unit 1510 is located to the left of the fourth radiating unit 270.

[0058] The novel FPC antenna provided in this disclosure enhances the high and low frequency band performance and signal transmission capability of the FPC antenna by setting a first radiating part 240, a second radiating part 250, a third radiating part 260 and a fourth radiating part 270, and setting a first feed point 120, a second feed point 130, a third feed point 140 and a fourth feed point 150. By setting a first positioning part 1480, a second positioning part 1490, a third positioning part 1500 and a fourth positioning part 1510, the positioning accuracy during the installation process of the FPC antenna is improved, and the installation error is effectively reduced.

[0059] Combination Figure 4-6 As shown, optionally, the first inductor 160 includes a first low-frequency oscillator 180 disposed in the first radiating portion 240 and a first high-frequency oscillator 200 disposed in the third radiating portion 260, and the first high-frequency oscillator 200 and the first low-frequency oscillator 180 are connected by a first connecting line 190; the second inductor 170 includes a second high-frequency oscillator 210 disposed in the second radiating portion 250 and a second low-frequency oscillator 230 disposed in the fourth radiating portion 270, and the second high-frequency oscillator 210 and the second low-frequency oscillator 230 are connected by a second connecting line 220.

[0060] The high-frequency and low-frequency elements of the first inductor 160 and the second inductor 170 are distributed in different radiating sections, and the physical spatial separation reduces the electromagnetic coupling between the high-frequency and low-frequency elements. Mutual coupling can cause crosstalk of signal energy between frequency bands, reducing the radiation efficiency and resonance purity of each frequency band. After being placed separately, the high-frequency and low-frequency elements can be tuned more independently to match the resonance conditions of the target frequency band, thereby improving the gain and efficiency of each radiating section and effectively enhancing the high-frequency and low-frequency performance of the FPC antenna.

[0061] Combination Figure 5 As shown, optionally, the first high-frequency oscillator 200, the first low-frequency oscillator 180, the second high-frequency oscillator 210 and the second low-frequency oscillator 230 are rectangular and have the same area, and the first connecting line 190 and the second connecting line 220 have the same size.

[0062] In this way, the high-frequency and low-frequency elements of the FPC antenna are distributed in different radiating sections. The low-frequency elements have a longer wavelength and a wider radiation direction, making them suitable for wide-area coverage; the high-frequency elements have a shorter wavelength and a narrower radiation direction, making them suitable for directional enhancement. The first high-frequency element 200, the first low-frequency element 180, the second high-frequency element 210, and the second low-frequency element 230 have the same area. After being placed separately in different radiating sections, their radiation fields are superimposed in space, which can not only expand the overall coverage area, but also form a gain superposition in the target direction, improve the reliability of signal reception and transmission, and effectively improve the high-frequency and low-frequency performance of the FPC antenna.

[0063] Combination Figure 4 As shown, optionally, the first inductor 160 is 8.0nH and the second inductor 170 is 8.0nH.

[0064] In this way, the first inductor 160 and the second inductor 170 have the same value, both 8.0nH. The symmetry of the high and low frequency paths of the FPC antenna is strengthened, the consistency of the FPC antenna radio frequency is improved, and the high frequency and low frequency performance of the antenna is effectively improved.

[0065] Combination Figure 3 , Figure 6 and Figure 7As shown, optionally, the first radiating unit 240 includes a first radiating unit 280, a second radiating unit 290, a third radiating unit 300, a fourth radiating unit 310, a fifth radiating unit 320, a sixth radiating unit 330, a seventh radiating unit 340, an eighth radiating unit 350, a ninth radiating unit 360, a tenth radiating unit 370, an eleventh radiating unit 380, a twelfth radiating unit 390, a thirteenth radiating unit 400, a fourteenth radiating unit 410, a fifteenth radiating unit 420, a sixteenth radiating unit 430, and a seventeenth radiating unit 440, connected in sequence. 0. Radiation units 450, 460, 470, 480, 490, 500, 510, 520, 530, 540, 550, 560, and 570 of the first radiation unit 240 are perpendicular to each other. The first radiation unit 280 is connected to the first feed point 120.

[0066] In this way, the vertical arrangement of adjacent radiating elements of the first radiating section 240 will make the current direction orthogonal in space. This orthogonal current distribution can excite circularly polarized waves. Compared with linear polarization in a single direction, circular polarization can reduce signal attenuation caused by equipment rotation or environmental reflection, improve communication reliability, and effectively improve the high-frequency and low-frequency performance of FPC antennas.

[0067] Combination Figure 3 , Figure 6 and Figure 8As shown, optionally, the second radiating unit 250 includes the following radiating units connected in sequence: a thirty-first radiating unit 580, a thirty-second radiating unit 590, a thirty-third radiating unit 600, a thirty-fourth radiating unit 610, a thirty-fifth radiating unit 620, a thirty-sixth radiating unit 630, a thirty-seventh radiating unit 640, a thirty-eighth radiating unit 650, a thirty-ninth radiating unit 660, a fortieth radiating unit 670, a forty-first radiating unit 680, a forty-second radiating unit 690, a forty-third radiating unit 700, a forty-fourth radiating unit 710, a forty-fifth radiating unit 720, and a forty-sixth radiating unit 730. The 47th radiation unit 740, 48th radiation unit 750, 49th radiation unit 760, 50th radiation unit 770, 51st radiation unit 780, 52nd radiation unit 790, 53rd radiation unit 800, 54th radiation unit 810, 55th radiation unit 820, 56th radiation unit 830, 57th radiation unit 840, 58th radiation unit 850, 59th radiation unit 860 and 60th radiation unit 870, the second radiation section 250, the adjacent two radiation units are perpendicular to each other, and the 31st radiation unit 870 is connected to the second feed point 130.

[0068] In this way, the vertical arrangement of adjacent radiating elements in the second radiating section 250 will make the current direction orthogonal in space. This orthogonal current distribution can excite circularly polarized waves. Compared with linear polarization in a single direction, circular polarization can reduce signal attenuation caused by equipment rotation or environmental reflection, improve communication reliability, and effectively improve the high-frequency and low-frequency performance of FPC antennas.

[0069] Combination Figure 3 , Figure 6 and Figure 9As shown, optionally, the third radiating unit 260 includes the following units connected in sequence: the sixty-first radiation unit 880, the sixty-second radiation unit 890, the sixty-third radiation unit 900, the sixty-fourth radiation unit 910, the sixty-fifth radiation unit 920, the sixty-sixth radiation unit 930, the sixty-seventh radiation unit 940, the sixty-eighth radiation unit 950, the sixty-ninth radiation unit 960, the seventieth radiation unit 970, the seventy-first radiation unit 980, the seventy-second radiation unit 990, the seventy-third radiation unit 1000, the seventy-fourth radiation unit 1010, the seventy-fifth radiation unit 1020, the seventy-sixth radiation unit 1030, and the seventy-seventh radiation unit 870. Radiation unit 1040, radiation unit 1050, radiation unit 1060, radiation unit 1070, radiation unit 1080, radiation unit 1090, radiation unit 1100, radiation unit 1110, radiation unit 1120, radiation unit 1130, radiation unit 1140, radiation unit 1150, radiation unit 1160, and radiation unit 1170 of the third radiation section 260 are perpendicular to each other, and radiation unit 1170 is connected to the third feed point 140.

[0070] In this way, the vertical arrangement of adjacent radiating elements in the third radiating section 260 will make the current direction orthogonal in space. This orthogonal current distribution can excite circularly polarized waves. Compared with linear polarization in a single direction, circular polarization can reduce signal attenuation caused by equipment rotation or environmental reflection, improve communication reliability, and effectively improve the high-frequency and low-frequency performance of FPC antennas.

[0071] Combination Figure 3 , Figure 6 and Figure 10As shown, optionally, the fourth radiating unit 270 includes the following radiating units connected in sequence: the ninety-first radiating unit 1180, the ninety-second radiating unit 1190, the ninety-third radiating unit 1200, the ninety-fourth radiating unit 1210, the ninety-fifth radiating unit 1220, the ninety-sixth radiating unit 1230, the ninety-seventh radiating unit 1240, the ninety-eighth radiating unit 1250, the ninety-ninth radiating unit 1260, the one hundredth radiating unit 1270, the one hundred and first radiating unit 1280, the one hundred and second radiating unit 1290, the one hundred and third radiating unit 1300, the one hundred and fourth radiating unit 1310, the one hundred and fifth radiating unit 1320, the one hundred and sixth radiating unit 1330, and the one hundred and seventh radiating unit 1270. Radiation units 1340, 108, 1350, 109, 1360, 110, 1370, 111, 1380, 112, 1390, 113, 1400, 114, 1410, 115, 1420, 116, 1430, 117, 1440, 118, 1450, 119, 1460, and 120, 1470, are located in the third radiating section 270. Adjacent radiation units are perpendicular to each other. Radiation unit 1470 is connected to the fourth feed point 150.

[0072] In this way, the vertical arrangement of adjacent radiating elements in the fourth radiating section 270 will make the current direction orthogonal in space. This orthogonal current distribution can excite circularly polarized waves. Compared with linear polarization in a single direction, circular polarization can reduce signal attenuation caused by equipment rotation or environmental reflection, improve communication reliability, and effectively improve the high-frequency and low-frequency performance of FPC antennas.

[0073] Combination Figure 11-12 As shown, optionally, the first positioning part 1480 includes a first positioning point 1520, a second positioning point 1530, a third positioning point 1540, a fourth positioning point 1550 and a fifth positioning point 1560, and the distance between two adjacent positioning points of the first positioning part 1480 is the same.

[0074] The second positioning part 1490 includes a sixth positioning point 1570, a seventh positioning point 1580, an eighth positioning point 1590, a ninth positioning point 1600 and a tenth positioning point 1610, and the distance between two adjacent positioning points of the second positioning part 1490 is the same.

[0075] The third positioning unit 1500 includes an eleventh positioning point 1620, a twelfth positioning point 1630, a thirteenth positioning point 1640, a fourteenth positioning point 1650, and a fifteenth positioning point 1660. The distance between any two adjacent positioning points in the third positioning unit 1500 is the same.

[0076] The fourth positioning unit 1510 includes a sixteenth positioning point 1670, a seventeenth positioning point 1680, an eighteenth positioning point 1690, a nineteenth positioning point 1700, and a twentieth positioning point 1710. The distance between any two adjacent positioning points of the fourth positioning unit 1510 is the same.

[0077] Thus, as a flexible substrate, the FPC is prone to localized stress concentration during installation due to compression and bending of the equipment casing, leading to issues such as circuit breakage or distortion of the radiating element. The five equally spaced positioning points of the first positioning section 1480, the second positioning section 1490, the third positioning section 1500, and the fourth positioning section 1510 divide the positioning section into four equal-length intervals. By uniformly constraining and dispersing stress, the stress distribution in each interval tends to be consistent, reducing structural instability caused by uneven stress that could lead to angular displacement of the FPC antenna radiating element. This ensures the spatial stability of the radiating element, improves the positioning accuracy during FPC antenna installation, and effectively reduces installation errors.

[0078] This disclosure provides a high-precision wireless temperature and humidity sensor, including a novel FPC antenna from the aforementioned embodiments.

[0079] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A novel FPC antenna, characterized in that, include: The radiating section includes a first radiating section, a second radiating section, a third radiating section, and a fourth radiating section; An AD adhesive layer is disposed at the lower part of the radiating portion; A black oil layer is disposed below the AD adhesive layer; A polyimide layer is disposed below the black oil layer; A double-sided adhesive layer is disposed below the polyimide layer; A release paper layer is disposed below the double-sided adhesive layer; A feed point is connected to the radiating part. The feed point includes a first feed point, a second feed point, a third feed point, and a fourth feed point. The first feed point is connected to the first radiating part, the second feed point is connected to the second radiating part, the third feed point is connected to the third radiating part, and the fourth feed point is connected to the fourth radiating part. An inductor, including a first inductor and a second inductor, wherein the first inductor is disposed in the first radiating portion and the third radiating portion, and the second inductor is disposed in the second radiating portion and the fourth radiating portion; The radiating part spacing includes a first radiating spacing disposed between the first radiating part and the third radiating part, a second radiating spacing disposed between the first radiating part and the second radiating part, a third radiating spacing disposed between the second radiating part and the fourth radiating part, and a fourth radiating spacing disposed between the third radiating part and the fourth radiating part. The positioning part includes a first positioning part, a second positioning part, a third positioning part, and a fourth positioning part. The first positioning part is disposed on the right side of the first radiating part, the second positioning part is disposed on the left side of the second radiating part, the third positioning part is disposed on the right side of the third radiating part, and the fourth positioning part is disposed on the left side of the fourth radiating part.

2. The novel FPC antenna according to claim 1, characterized in that, The first inductor includes a first low-frequency oscillator disposed in the first radiating part and a first high-frequency oscillator disposed in the third radiating part, and the first high-frequency oscillator and the first low-frequency oscillator are connected by a first connecting line; the second inductor includes a second high-frequency oscillator disposed in the second radiating part and a second low-frequency oscillator disposed in the fourth radiating part, and the second high-frequency oscillator and the second low-frequency oscillator are connected by a second connecting line.

3. The novel FPC antenna according to claim 2, characterized in that, The first high-frequency oscillator, the first low-frequency oscillator, the second high-frequency oscillator, and the second low-frequency oscillator are rectangular and have the same area. The first connecting line and the second connecting line have the same size.

4. A novel FPC antenna according to claim 2, characterized in that, The first inductor is 8.0nH and the second inductor is 8.0nH.

5. A novel FPC antenna according to claim 1, characterized in that, The first radiating section includes a first radiating unit, a second radiating unit, a third radiating unit, a fourth radiating unit, a fifth radiating unit, a sixth radiating unit, a seventh radiating unit, an eighth radiating unit, a ninth radiating unit, a tenth radiating unit, an eleventh radiating unit, a twelfth radiating unit, a thirteenth radiating unit, a fourteenth radiating unit, a fifteenth radiating unit, a sixteenth radiating unit, a seventeenth radiating unit, an eighteenth radiating unit, a nineteenth radiating unit, a twentieth radiating unit, a twenty-first radiating unit, a twenty-second radiating unit, a twenty-third radiating unit, a twenty-fourth radiating unit, a twenty-fifth radiating unit, a twenty-sixth radiating unit, a twenty-seventh radiating unit, a twenty-eighth radiating unit, a twenty-ninth radiating unit, and a thirtieth radiating unit connected in sequence. Adjacent radiating units in the first radiating section are perpendicular to each other, and the first radiating unit is connected to the first feed point.

6. A novel FPC antenna according to claim 1, characterized in that, The second radiating section includes a 31st radiating unit, a 32nd radiating unit, a 33rd radiating unit, a 34th radiating unit, a 35th radiating unit, a 36th radiating unit, a 37th radiating unit, a 38th radiating unit, a 39th radiating unit, a 40th radiating unit, a 41st radiating unit, a 42nd radiating unit, a 43rd radiating unit, a 44th radiating unit, a 45th radiating unit, a 46th radiating unit, a 47th radiating unit, a 48th radiating unit, a 49th radiating unit, a 50th radiating unit, a 51st radiating unit, a 52nd radiating unit, a 53rd radiating unit, a 54th radiating unit, a 55th radiating unit, a 56th radiating unit, a 57th radiating unit, a 58th radiating unit, a 59th radiating unit, and a 60th radiating unit, which are connected in sequence. Adjacent radiating units in the second radiating section are perpendicular to each other, and the 31st radiating unit is connected to the second feed point.

7. A novel FPC antenna according to claim 1, characterized in that, The third radiating section includes the following radiating units connected in sequence: the sixty-first radiating unit, the sixty-second radiating unit, the sixty-third radiating unit, the sixty-fourth radiating unit, the sixty-fifth radiating unit, the sixty-sixth radiating unit, the sixty-seventh radiating unit, the sixty-eighth radiating unit, the seventy-ninth radiating unit, the seventy-first radiating unit, the seventy-second radiating unit, the seventy-third radiating unit, the seventy-fourth radiating unit, the seventy-fifth radiating unit, the seventy-sixth radiating unit, the seventy-seventh radiating unit, the seventy-eighth radiating unit, the seventy-ninth radiating unit, the eightyth radiating unit, the eighty-first radiating unit, the eighty-second radiating unit, the eighty-third radiating unit, the eighty-fourth radiating unit, the eighty-fifth radiating unit, the eighty-sixth radiating unit, the eighty-eighth radiating unit, the eighty-ninth radiating unit, and the ninetieth radiating unit. Adjacent radiating units of the third radiating section are perpendicular to each other, and the sixty-first radiating unit is connected to the third feed point.

8. A novel FPC antenna according to claim 1, characterized in that, The fourth radiating section includes the following radiating units connected in sequence: the ninety-first radiating unit, the ninety-second radiating unit, the ninety-third radiating unit, the ninety-fourth radiating unit, the ninety-fifth radiating unit, the ninety-sixth radiating unit, the ninety-seventh radiating unit, the ninety-eighth radiating unit, the ninety-ninth radiating unit, the one hundredth radiating unit, the one hundred and first radiating unit, the one hundred and second radiating unit, the one hundred and third radiating unit, the one hundred and fourth radiating unit, the one hundred and fifth radiating unit, the one hundred and sixth radiating unit, the one hundred and seventh radiating unit, the one hundred and eighth radiating unit, the one hundred and ninth radiating unit, the one hundred and tenth radiating unit, the one hundred and eleven ...

9. A novel FPC antenna according to claim 1, characterized in that, The first positioning part includes a first positioning point, a second positioning point, a third positioning point, a fourth positioning point, and a fifth positioning point, and the distance between two adjacent positioning points of the first positioning part is the same; The second positioning part includes a sixth positioning point, a seventh positioning point, an eighth positioning point, a ninth positioning point, and a tenth positioning point, and the distance between two adjacent positioning points of the second positioning part is the same; The third positioning part includes an eleventh positioning point, a twelfth positioning point, a thirteenth positioning point, a fourteenth positioning point, and a fifteenth positioning point, and the distance between any two adjacent positioning points of the third positioning part is the same; The fourth positioning part includes a sixteenth positioning point, a seventeenth positioning point, an eighteenth positioning point, a nineteenth positioning point, and a twentieth positioning point, and the distance between any two adjacent positioning points of the fourth positioning part is the same.

10. A high-precision wireless temperature and humidity sensor, characterized in that, Including a novel FPC antenna as described in any one of claims 1 to 9.

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