Comprehensive T-shaped double-steel antenna

Abstract

The utility model discloses a comprehensive T-shaped double-steel antenna, which relates to the technical field of antennas and comprises a PCB (printed circuit board), an antenna oscillator assembly electrically connected with the PCB, a coaxial line electrically connected with the antenna oscillator assembly, an impedance matching module electrically connected between the antenna oscillator assembly and the coaxial line, and a protective shell arranged on the outer side of the PCB. The coaxial line is fixedly connected to the PCB; the antenna oscillator assembly comprises a first antenna oscillator assembly and a second antenna oscillator assembly; the first antenna oscillator assembly comprises two first antenna oscillators; the second antenna oscillator assembly comprises two second antenna oscillators. According to the technical scheme provided by the utility model, the number of the antenna oscillators is increased, and the gain of the antenna is improved, so that the antenna can maintain a better impedance matching effect in a wider frequency range, and the antenna can maintain good performance in a wider frequency range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of antenna, concretely relates to a comprehensive T type double steel antenna. BACKGROUND

[0002] The dipole antenna, also known as the symmetric antenna, is widely used in various wireless communication systems. It is composed of a pair of symmetrically placed conductors (antenna elements), and the two ends of the two conductors are connected to the feeder line (such as coaxial cable) respectively, forming a symmetric structure. When current passes through the two conductors, a changing electromagnetic field is generated between them, which radiates electromagnetic waves, thereby realizing wireless communication.

[0003] The dipole antenna is a resonant antenna, and the current distribution inside the antenna has the form of standing wave, and the wavelength of the standing wave is exactly the wavelength of the electromagnetic wave generated or received by the dipole antenna. Therefore, when making the dipole antenna, the length of the antenna is determined according to the working wavelength. This design makes the dipole antenna reach the best resonant state at a specific frequency (specific frequency range), and shows the best performance at the specific frequency, while the performance of the antenna will decrease significantly when deviating from this specific frequency.

[0004] Therefore, the present scheme proposes a comprehensive T type double steel antenna, which can improve the gain of the antenna to a certain extent, and make the antenna maintain good performance in a wider frequency range. UTILITY MODEL CONTENTS

[0005] The utility model discloses a comprehensive T type double steel antenna, increase the number of antenna element, improve the gain of antenna, make the antenna can keep better impedance matching effect in wider frequency range, make the antenna can keep good performance in wider frequency range.

[0006] In order to achieve the above object, the utility model provides a comprehensive T type double steel antenna, including PCB board, antenna element assembly with the PCB board electrical connection, coaxial line with the antenna element assembly electrical connection, impedance matching module electrical connection between the antenna element assembly and the coaxial line, the protective housing of setting in the PCB board outside, the coaxial line fixed connection on the PCB board;

[0007] The antenna element assembly includes a first antenna element assembly and a second antenna element assembly.

[0008] The first antenna element assembly includes two first antenna elements.

[0009] The second antenna element assembly includes two second antenna elements.

[0010] Further, the first antenna element is fixedly connected to the PCB board through a first copper exposure area.

[0011] The second antenna element is fixedly connected to the PCB board through a second copper exposure area.

[0012] Further, the impedance matching module comprises a first capacitor C1, an inductor L1 and a second capacitor C2.

[0013] Further, the coaxial line comprises an inner conductor and an outer conductor.

[0014] The inner conductor is fixedly connected to the PCB board through a third copper exposure area.

[0015] The outer conductor is fixedly connected to the PCB board through a fourth copper exposure area.

[0016] The inner conductor is electrically connected to the first antenna element, and the outer conductor is electrically connected to the second antenna element.

[0017] Further, the impedance matching module is connected between the inner conductor and the first antenna element.

[0018] Further, an electronic connector is arranged at an end of the coaxial line away from the PCB board.

[0019] Further, the material of the inner conductor is any one of conductive polymer material, metal conductive material and composite conductive material.

[0020] The outer conductor is a metal woven mesh.

[0021] Further, the materials of the first antenna element and the second antenna element are metal wires.

[0022] Further, the material of the protective shell is polypropylene composite material.

[0023] Further, the first copper exposure area, the second copper exposure area, the third copper exposure area and the fourth copper exposure area are arranged on the PCB board.

[0024] The utility model discloses the following several points:

[0025] 1, the utility model discloses a PCB board is connected antenna element subassembly and coaxial line through using, sets up 4 welding points on the PCB board, makes the coaxial line with 4 antenna elements electrical connection.

[0026] 2, the utility model discloses through setting up 4 antenna elements, increases the gain of antenna, thereby improves the strength of antenna receiving or emitting signal, improves the performance of antenna.

[0027] 3. The utility model discloses a impedance matching module is connected between antenna oscillator subassembly and the inner conductor of coaxial line, through the value of adjusting inductance, capacitance, make the utility model discloses can keep better impedance matching effect in wider frequency range, make the utility model discloses can keep good performance in wider frequency range, be applicable to more frequency signal. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the structure schematic drawing of the utility model.

[0029] Figure 2 It is the structure schematic drawing of the utility model.

[0030] Figure 3 It is the structure schematic drawing of the PCB board of the utility model.

[0031] Figure 4 It is the circuit diagram of the impedance matching module of the utility model.

[0032] Among them, the sign is: 1, PCB board;11, first copper exposure area;12, second copper exposure area;13, third copper exposure area;14, fourth copper exposure area;2, antenna oscillator subassembly;21, first antenna oscillator subassembly;211, first antenna oscillator;22, second antenna oscillator subassembly;221, second antenna oscillator subassembly;3, coaxial line;4, impedance matching module;5, protective housing;6, electronic connector;7, PCB board fixing hole;C1, first capacitor;L1, inductance;C2, second capacitor. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0034] It should be noted that if the embodiments of the utility model involve directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, if the specific posture changes, the directionality indication also changes accordingly.

[0035] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0036] The utility model proposes a comprehensive T type double steel antenna, including PCB board 1, antenna oscillator subassembly 2 of electric connection with PCB board 1, coaxial line 3 of electric connection with antenna oscillator subassembly 2, impedance matching module 4 of electric connection between antenna oscillator subassembly 2 and coaxial line 3, the protection shell 5 of setting in the outside of PCB board 1, coaxial line 3 is fixedly connected on PCB board 1,

[0037] Antenna oscillator subassembly 2 includes first antenna oscillator subassembly 21, second antenna oscillator subassembly 22,

[0038] First antenna oscillator subassembly 21 includes two first antenna oscillator 211,

[0039] Second antenna oscillator subassembly 22 includes second antenna oscillator 221.

[0040] Preferably, PCB board 1 is used as the support and electrical connection platform of the utility model, which is used to realize the physical and electrical connection between the antenna oscillator subassembly 2, coaxial line 3 and impedance matching module 4, to ensure the efficient and stable transmission of antenna signals, and also to ensure the stability and reliability of the physical connection between the antenna oscillator subassembly 2 and coaxial line 3.

[0041] Preferably, at the transmitting end, the radio frequency signals generated by the signal source (such as a transmitter) are transmitted to the antenna oscillator subassembly 2 through the coaxial line 3.

[0042] Preferably, at the receiving end, the radio frequency signals received by the antenna oscillator subassembly 2 are also transmitted back to the signal source (such as a receiver) through the coaxial line 3 for processing.

[0043] Preferably, the first antenna oscillator 211 has two, and the second antenna oscillator 221 has two.

[0044] Preferably, the first antenna element 211 and the second antenna element 221 are equal in length, parallel and symmetrically welded on both sides of the PCB board 1.

[0045] Preferably, the first antenna element 211 and the second antenna element 221 are both metal wires with a diameter of 1mm, which are main radiating elements of the utility model and used for transmitting and receiving signals.

[0046] Preferably, the first antenna element 211 is sleeved with a heat shrink tube on the outside, which is used for protecting the first antenna element 211 and preventing the first antenna element 211 from rusting.

[0047] Preferably, the second antenna element 221 is sleeved with a heat shrink tube on the outside, which is used for protecting the second antenna element 221 and preventing the second antenna element 221 from rusting.

[0048] Further, the first antenna element 211 is fixedly connected to the PCB board 1 through the first copper exposure area 11; and the second antenna element 221 is fixedly connected to the PCB board 1 through the second copper exposure area 12.

[0049] Further, the impedance matching module 4 comprises a first capacitor C1, an inductor L1 and a second capacitor C2.

[0050] Further, the coaxial line 3 comprises an inner conductor and an outer conductor.

[0051] The inner conductor is fixedly connected to the PCB board 1 through a third copper exposure area 13.

[0052] The outer conductor is fixedly connected to the PCB board 1 through a fourth copper exposure area 14.

[0053] The inner conductor is electrically connected to the first antenna element 211, and the outer conductor is electrically connected to the second antenna element 221.

[0054] Further, the impedance matching module 4 is connected between the inner conductor and the first antenna element 211.

[0055] Preferably, the PCB board 1 is provided with the first copper exposure area 11, the second copper exposure area 12, the third copper exposure area 13 and the fourth copper exposure area 14.

[0056] Preferably, the inner conductor of the coaxial line 3 is arranged at the center of the coaxial line 3, is an inner core of the coaxial line 3, is welded on the third copper exposure area 13, is a feeding end of the comprehensive T-shaped double-steel antenna and is responsible for signal transmission.

[0057] Preferably, the outer conductor of the coaxial line 3 surrounds the surface of the inner conductor, is an outer shielding layer of the coaxial line 3 and is welded on the fourth copper exposure area 14.

[0058] Preferably, the first copper exposed area 11 is provided with two soldering points for soldering the two first antenna dipoles 211 on the PCB board 1 to realize the electrical connection between the two first antenna dipoles 211 and the PCB board 1, and further realize the electrical connection between the two first antenna dipoles 211 and the inner conductor to form the transmission path of the antenna signal; the second copper exposed area 12 is provided with two soldering points for soldering the two second antenna dipoles 221 on the PCB board 1 to realize the electrical connection between the two second antenna dipoles 221 and the PCB board 1, and further realize the electrical connection between the two second antenna dipoles 221 and the outer conductor. In this way, the balanced feed and grounding of the comprehensive T-shaped double-steel antenna are realized.

[0059] Preferably, the impedance matching module 4 is connected between the inner conductor and the first antenna dipole 221, the inductor L1 is connected in series between the inner conductor and the first antenna dipole 221, and the first capacitor C1 and the second capacitor C2 are connected in parallel on both sides of the inductor L1, with one end of the first capacitor C1 grounded and one end of the second capacitor C2 grounded.

[0060] Preferably, the inductor L1 is mainly used for impedance adjustment. The impedance of the antenna mainly includes resistance and reactance, and the reactance mainly includes inductive reactance and capacitive reactance. The reactance is mainly determined by factors such as the physical size, shape of the antenna, and the electromagnetic field in the working environment. The inductor L1 can generate a magnetic field opposite to the inductive reactance in the comprehensive T-shaped double-steel antenna through its self-induction, thereby canceling or compensating for the inductive reactance. Therefore, by selecting an appropriate value of the inductor L1, the inductive reactance in the comprehensive T-shaped double-steel antenna can be compensated, so that the total impedance of the comprehensive T-shaped double-steel antenna is closer to pure resistance, reducing the reflection of the signal between the antenna dipole assembly 2 and the coaxial line 3, reducing the energy consumption in signal transmission, improving the efficiency of signal transmission, and allowing more power to be transmitted from the coaxial line 3 to the antenna dipole assembly 2, thereby improving the radiation efficiency of the antenna dipole assembly 2.

[0061] Preferably, the first capacitor C1 and the second capacitor C2 are used to compensate for the inductive reactance introduced by the inductor L1 in the comprehensive T-shaped double-steel antenna circuit, further optimizing the impedance matching effect. By adjusting the capacitance of the first capacitor C1 and the second capacitor C2, impedance matching in a wider frequency range can be achieved.

[0062] Preferably, by adjusting the values of the inductor L1, the first capacitor C1, and the second capacitor C2, the comprehensive T-shaped double-steel antenna can maintain good impedance matching effect in a wider frequency range, maintain good performance in a wider frequency range, and be suitable for more frequency signals.

[0063] Further, the coaxial line 3 is provided with an electronic connector 6 at the end away from the PCB board 1.

[0064] Preferably, the electronic connector 6 is an IPEX connector, which is used for electrical connection of the comprehensive T-shaped double steel antenna and other devices (such as a drone) to transmit signals.

[0065] Further, the material of the inner conductor is any one of conductive polymer material, metal conductive material and composite conductive material.

[0066] The outer conductor is a metal braid.

[0067] Preferably, the inner conductor of the coaxial line 3 is the inner core of the coaxial line, which is the signal transmission core of the coaxial line 3 and has high conductivity.

[0068] Further, the materials of the first antenna oscillator 211 and the second antenna oscillator 221 are both metal wires.

[0069] Further, the material of the protective shell 5 is polypropylene composite material.

[0070] Preferably, the protective shell 5 is used to protect the PCB board 1 and the connection part of the PCB board 1 and the antenna oscillator assembly 2.

[0071] Further, the first copper exposure area 11, the second copper exposure area 12, the third copper exposure area 13 and the fourth copper exposure area 14 are all arranged on the PCB board 1.

[0072] The specific working process of the utility model is as follows:

[0073] When the utility model receives signals, when electromagnetic waves (such as radio signals) propagate to the vicinity of the comprehensive T-shaped double steel antenna, the electromagnetic waves will induce electromotive force on the antenna oscillator assembly 2; since the first antenna oscillator 211 is electrically connected with the inner conductor of the coaxial line 3, the induced electromotive force will be transmitted to the inner conductor of the coaxial line 3; the impedance matching module 4 plays the role of impedance matching here, ensuring that the signals received by the comprehensive T-shaped double steel antenna can be efficiently transmitted to the coaxial line 3, reducing signal reflection and loss; the outer conductor of the coaxial line 3 serves as a ground together with the inner conductor of the coaxial line 3 to form a complete signal transmission path; finally, the signals are transmitted to other devices (such as a drone) connected with the comprehensive T-shaped double steel antenna through the electronic connector 6 for processing.

[0074] When the utility model transmits signals, signals are transmitted from other devices (such as a drone) connected with the comprehensive T-shaped double steel antenna to the coaxial line 3 through the electronic connector 6; the signals are transmitted on the inner conductor of the coaxial line 3 and transmitted to the first antenna oscillator 211 through the impedance matching module 4; the first antenna oscillator 211 radiates the signals in the form of electromagnetic waves, completing the signal transmission process; the second antenna oscillator 221 and the outer conductor of the coaxial line 3 serve as a ground here, providing a necessary loop for signal transmission.

[0075] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A comprehensive T-shaped dual-steel antenna, characterized by, The application relates to an antenna device, which comprises a PCB board (1), an antenna oscillator assembly (2) electrically connected with the PCB board (1), a coaxial line (3) electrically connected with the antenna oscillator assembly (2), an impedance matching module (4) electrically connected between the antenna oscillator assembly (2) and the coaxial line (3), and a protective shell (5) arranged outside the PCB board (1), wherein the coaxial line (3) is fixedly connected to the PCB board (1). The antenna oscillator assembly (2) comprises a first antenna oscillator assembly (21) and a second antenna oscillator assembly (22). The first antenna oscillator assembly (21) comprises two first antenna oscillators (211). The second antenna oscillator assembly (22) comprises two second antenna oscillators (221).

2. The comprehensive T-shaped dual-steel antenna according to claim 1, wherein, The first antenna oscillator (211) is fixedly connected to the PCB board (1) through a first copper-exposed area (11). The second antenna oscillator (221) is fixedly connected to the PCB board (1) through a second copper-exposed area (12).

3. The comprehensive T-shaped dual-steel antenna according to claim 1, wherein, The impedance matching module (4) comprises a first capacitor C1, an inductor L1 and a second capacitor C2.

4. The comprehensive T-shaped dual-steel antenna according to claim 2, wherein, The coaxial line (3) comprises an inner conductor and an outer conductor. The inner conductor is fixedly connected to the PCB board (1) through a third copper-exposed area (13). The outer conductor is fixedly connected to the PCB board (1) through a fourth copper-exposed area (14). The inner conductor is electrically connected with the first antenna oscillator (211), and the outer conductor is electrically connected with the second antenna oscillator (221).

5. The comprehensive T-shaped dual-steel antenna according to claim 4, characterized in that, The impedance matching module (4) is connected between the inner conductor and the first antenna oscillator (211).

6. The comprehensive T-shaped dual-steel antenna according to claim 4, wherein, An electronic connector (6) is arranged at one end of the coaxial line (3) away from the PCB board (1).

7. The comprehensive T-shaped dual-steel antenna according to claim 4, wherein, The material of the inner conductor is any one of conductive polymer material, metal conductive material and composite conductive material. The outer conductor is a metal woven net.

8. The comprehensive T-shaped dual-steel antenna according to claim 1, wherein, The materials of the first antenna oscillator (211) and the second antenna oscillator (221) are metal wires.

9. The comprehensive T-shaped dual-steel antenna according to claim 1, wherein, The material of the protective shell (5) is polypropylene composite material.

10. The comprehensive T-shaped dual-steel antenna according to claim 4, wherein, The first copper-exposed area (11), the second copper-exposed area (12), the third copper-exposed area (13) and the fourth copper-exposed area (14) are arranged on the PCB board (1).

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