A new adaptive frequency broadband antenna

Abstract

The invention discloses a novel adaptive frequency broadband antenna, and the technical scheme thereof is as follows: the antenna comprises a baseband and a body, wherein a voltage-controlled oscillator is provided at a connection end of the baseband, an RF module is provided at a connection end of the voltage-controlled oscillator, a Match module is provided at a connection end of the RF module, a Radiato module is provided at a connection end of the Match module, and the baseband is electrically connected to the Match module; a cleaning mechanism is provided at the bottom of the body, the cleaning mechanism comprises a connecting plate, the connecting plate is arranged inside the body, a connecting block is fixedly provided at one side of the body, a supporting frame is fixedly provided at the bottom of the connecting block, and a supporting plate is fixedly provided at the bottom of the supporting frame. The antenna has a simple structure, is easy to be miniaturized and lightweight, follows the self-adaptive frequency of the radio frequency system, can ensure that the antenna works in the best state at each frequency point, has a certain suppression effect on frequencies that are not currently output, can improve the anti-interference ability of the receiver, and is particularly suitable for ultra-wideband frequency modulation continuous waves.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to a novel adaptive frequency broadband antenna. Background Art

[0002] Antenna is a kind of converter, which transforms the guided wave propagating on the transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. It is a component used to transmit or receive electromagnetic waves in radio equipment. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy, etc., all of which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy with electromagnetic waves, non-signal energy radiation also requires antennas. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna, and the basic characteristic parameters of the same antenna as a transmitter or a receiver are the same. This is the reciprocity theorem of antennas.

[0003] The prior art has the following deficiencies: current adaptive antennas are generally adaptive in beam direction, and beam synthesis is achieved by changing parameters such as the phase of the antenna array to increase the physical size of the antenna and stimulate multiple modes. This method has limited bandwidth expansion. Most of the prior art uses traveling wave antennas. The physical characteristics of traveling wave antennas are naturally high broadband, for example, horn antennas, etc., and use the adaptability of antenna structures, such as log-periodic antennas, to radiate energy only in areas that meet the resonance conditions, and the other parts are for transmission. Different resonance areas can be used for different frequencies to achieve broadbandization, and the physical shape of the antenna part is changed. For example, other means are used to control the extension or shortening of the antenna arm according to actual needs to achieve antenna broadbandization. For the above solutions, the structures that need to be broadbanded are basically complex, occupy a large space, and are not conducive to miniaturization. General broadband antennas have good impedance matching within a very wide frequency range, and can also transmit and receive unwanted clutter well, but cannot achieve the effect of out-of-band suppression.

[0004] Therefore, it is necessary to invent a new type of adaptive frequency broadband antenna. Summary of the invention

[0005] To this end, the present invention provides a novel adaptive frequency broadband antenna. The present invention has a simple structure, is easy to be miniaturized and lightweight, and can adapt to the frequency following the radio frequency system itself, thereby ensuring that the antenna operates in the best state at each frequency point, has a certain suppression effect on frequencies that are not currently output, and can improve the anti-interference ability of the receiver. The antenna is particularly suitable for ultra-wideband frequency modulation continuous waves to solve the problem that general broadband antennas have good impedance matching within a very wide frequency range, can transmit and receive unwanted clutter well, and cannot achieve the effect of out-of-band suppression.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a novel adaptive frequency broadband antenna, comprising a baseband and a body, wherein a voltage-controlled oscillator is provided at a connection end of the baseband, an RF module is provided at a connection end of the voltage-controlled oscillator, a Match module is provided at a connection end of the RF module, a Radiato module is provided at a connection end of the Match module, and the baseband is electrically connected to the Match module;

[0007] The bottom of the body is provided with a cleaning mechanism, and the cleaning mechanism includes a connecting plate, which is arranged inside the body, a connecting block is fixedly provided on one side of the body, a supporting frame is fixedly provided at the bottom of the connecting block, a supporting plate is fixedly provided at the bottom of the supporting frame, a motor is fixedly provided at the top of the inner cavity of the supporting frame, the motor is fixedly connected to a rotating rod through an output shaft, a sleeve is provided on the outside of the rotating rod, the sleeve and the rotating rod are connected through a one-way bearing, a first bevel gear is fixedly provided on the outside of the sleeve, a second bevel gear is provided on one side of the first bevel gear, the second bevel gear is meshed with the first bevel gear, a first reciprocating screw rod is fixedly provided on one side of the second bevel gear, one end of the first reciprocating screw rod extends out of one side of the supporting frame, a first bearing seat is provided on the outside of the first reciprocating screw rod, the first bearing seat is connected to the first reciprocating screw rod through a ball nut pair, two connecting rods are fixedly provided on one side of the first bearing seat, and the two connecting rods both extend out of one side of the supporting frame, a moving plate is provided on one side of the supporting frame, one side of the moving plate is fixedly connected to the two connecting rods, a brush is fixedly provided at the bottom of the moving plate, and the cleaning mechanism also includes an auxiliary component.

[0008] Preferably, the auxiliary component includes a first gear, which is arranged on the outside of the rotating rod and connected to the rotating rod through a one-way bearing, a second reciprocating screw is provided on the top of the support plate, the second reciprocating screw is connected to the support plate through a bearing, a second gear is fixedly provided on the outside of the second reciprocating screw, the second gear is arranged on one side of the first gear and meshes with the first gear, a second bearing seat is provided on the outside of the second reciprocating screw, and the second bearing seat is connected to the second reciprocating screw through a ball nut pair.

[0009] Preferably, a through slot is opened on one side of the support frame, a cross plate is fixedly provided on one side of the second bearing seat, the cross plate passes through the through slot and extends out of one side of the support frame, a support frame is fixedly provided on the top of the cross plate, and the top of the support frame is fixedly connected to the bottom of the connecting plate.

[0010] Preferably, a baffle is fixedly provided inside the support frame, and the top of the second reciprocating screw rod is connected to the bottom of the baffle via a bearing.

[0011] Preferably, a connecting plate is fixedly provided on the top of the baffle, and the connecting plate is connected to the first reciprocating screw rod through a bearing.

[0012] Preferably, a circular plate is fixedly provided on one side of the first reciprocating screw.

[0013] Preferably, the bottom of the rotating rod is connected to the top of the supporting plate via a bearing.

[0014] Preferably, the first reciprocating screw is connected to the support frame via a bearing.

[0015] The beneficial effects of the present invention are:

[0016] 1. The structure of the present invention is simple, easy to miniaturize and lightweight, and can adapt to the frequency of the radio frequency system itself, so as to ensure that the antenna works in the best state at each frequency point, has a certain suppression effect on the frequency that is not currently output, and can improve the anti-interference ability of the receiver, and is particularly suitable for ultra-wideband frequency modulation continuous wave;

[0017] 2. The present invention adopts the design of the baseband structure, and the baseband controls the matching circuit of the antenna synchronously while controlling the voltage-controlled oscillator, that is, controls the voltage-controlled capacitor or other voltage-controlled switches in the matching circuit, so that the original narrowband antenna can adaptively adjust the corresponding resonant frequency as the output frequency changes, so that the antenna's optimal gain and efficiency are always maintained at the RF output frequency, thereby improving the overall performance of the transceiver system;

[0018] 3. Through the design of the cleaning mechanism, the utility model can brush off some dust and other impurities accumulated on the connecting plate by moving structures such as the brush and the connecting plate, thereby ensuring the normal use of the main body, avoiding the problem of excessive dust, fine sand and other impurities inside the main body affecting the normal use of the main body, and ensuring the normal transmission of signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A principle block diagram provided for the present invention;

[0020] Figure 2 A schematic diagram of the structure of the cleaning mechanism provided by the present invention;

[0021] Figure 3 A three-dimensional diagram of the movable plate provided by the present invention;

[0022] Figure 4 The present invention provides Figure 2 A in the enlarged view;

[0023] In the figure: 1 baseband, 2 body, 3 voltage-controlled oscillator, 4 RF module, 5 Match module, 6 Radiato module, 7 connecting plate, 8 connecting block, 9 support frame, 10 support plate, 11 motor, 12 rotating rod, 13 sleeve, 14 first bevel gear, 15 second bevel gear, 16 first reciprocating screw rod, 17 first bearing seat, 18 connecting rod, 19 moving plate, 20 brush, 21 first gear, 22 second reciprocating screw rod, 23 second gear, 24 second bearing seat, 25 through groove, 26 cross plate, 27 support frame, 28 baffle plate, 29 connecting plate, 30 round plate. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Refer to the attached Figure 1-4 The present invention provides a novel adaptive frequency broadband antenna, comprising a baseband 1 and a body 2, wherein a voltage-controlled oscillator 3 is provided at a connection end of the baseband 1, an RF module 4 is provided at a connection end of the voltage-controlled oscillator 3, a Match module 5 is provided at a connection end of the RF module 4, a Radiato module 6 is provided at a connection end of the Match module 5, and the baseband 1 is electrically connected to the Match module 5;

[0026] The bottom of the body 2 is provided with a cleaning mechanism, and the cleaning mechanism includes a connecting plate 7, and the connecting plate 7 is arranged inside the body 2. A connecting block 8 is fixedly provided on one side of the body 2, and a supporting frame 9 is fixedly provided on the bottom of the connecting block 8. A supporting plate 10 is fixedly provided on the bottom of the supporting frame 9, and a motor 11 is fixedly provided on the top of the inner cavity of the supporting frame 9. The motor 11 is fixedly connected to a rotating rod 12 through an output shaft, and a sleeve 13 is provided outside the rotating rod 12. The sleeve 13 is connected to the rotating rod 12 through a one-way bearing, and a first bevel gear 14 is fixedly provided on the outside of the sleeve 13, and a second bevel gear 15 is provided on one side of the first bevel gear 14. The second bevel gear 15 Meshing with the first bevel gear 14, a first reciprocating screw 16 is fixedly provided on one side of the second bevel gear 15, one end of the first reciprocating screw 16 extends out of one side of the support frame 9, a first bearing seat 17 is provided outside the first reciprocating screw 16, the first bearing seat 17 is connected to the first reciprocating screw 16 through a ball nut pair, two connecting rods 18 are fixedly provided on one side of the first bearing seat 17, both of the two connecting rods 18 extend out of one side of the support frame 9, a movable plate 19 is provided on one side of the support frame 9, one side of the movable plate 19 is fixedly connected to the two connecting rods 18, a brush 20 is fixedly provided at the bottom of the movable plate 19, and the cleaning mechanism also includes an auxiliary component.

[0027] Furthermore, the auxiliary component includes a first gear 21, which is arranged on the outside of the rotating rod 12 and is connected to the rotating rod 12 through a one-way bearing. A second reciprocating screw 22 is provided on the top of the support plate 10, and the second reciprocating screw 22 is connected to the support plate 10 through a bearing. A second gear 23 is fixedly provided on the outside of the second reciprocating screw 22, and the second gear 23 is provided on one side of the first gear 21 and meshes with the first gear 21. A second bearing seat 24 is provided on the outside of the second reciprocating screw 22, and the second bearing seat 24 is connected to the second reciprocating screw 22 through a ball nut pair.

[0028] Furthermore, a through slot 25 is opened on one side of the support frame 9, a cross plate 26 is fixedly provided on one side of the second bearing seat 24, the cross plate 26 passes through the through slot 25 and extends out of one side of the support frame 9, a support frame 27 is fixedly provided on the top of the cross plate 26, and the top of the support frame 27 is fixedly connected to the bottom of the connecting plate 7.

[0029] Furthermore, a baffle 28 is fixedly provided inside the support frame 9, and the top of the second reciprocating screw rod 22 is connected to the bottom of the baffle 28 via a bearing.

[0030] Furthermore, a connecting plate 29 is fixedly provided on the top of the baffle 28, and the connecting plate 29 is connected to the first reciprocating screw rod 16 through a bearing.

[0031] Furthermore, a circular plate 30 is fixedly provided on one side of the first reciprocating screw rod 16 .

[0032] Furthermore, the bottom of the rotating rod 12 is connected to the top of the supporting plate 10 via a bearing.

[0033] Furthermore, the first reciprocating screw rod 16 is connected to the support frame 9 via a bearing.

[0034] The use process of the present invention is as follows: When using the present invention, in a commonly used radio frequency system, the oscillator is usually controlled by software to send a corresponding voltage from the baseband 1 to control the voltage-controlled oscillator 3 to output a corresponding frequency. In a narrow range, the bandwidth requirement can be met by a conventional antenna. If in an ultra-wideband system, the bandwidth of the conventional antenna is difficult to achieve a good gain within the entire bandwidth, and a broadband antenna is required. The broadband antenna has the problems of large size and complex structure mentioned above, which become constraints. Figure 1As shown, the baseband 1 controls the matching circuit of the antenna synchronously while controlling the voltage-controlled oscillator 3, that is, controls the voltage-controlled capacitor or other voltage-controlled switches in the matching circuit, so that the original narrowband antenna can adaptively adjust the corresponding resonant frequency as the output frequency changes, so that the antenna's optimal gain and efficiency are always maintained at the RF output frequency, improving the overall performance of the transceiver system, and adjusting the resonant frequency itself as the frequency changes, that is, ensuring the best antenna transceiver effect. When the RF is temporarily not output, the antenna has no gain effect at this time, but has a better suppression effect, which can improve the receiver's suppression ratio of adjacent frequency interference;

[0035] When the main body 2 is in use, since the main body 2 is generally designed to be arc-shaped, a lot of fine sand and dust will accumulate inside the main body 2. Once the dust and fine sand accumulate too much, the pressure on the main body 2 will increase, and seriously affect the normal transmission of the signal. First, the present invention connects an external power supply, and then starts the motor 11. The motor 11 drives the rotating rod 12 to rotate. Because the rotating rod 12 is connected to the sleeve 13 and the first gear 21 through bearings, the sleeve 13 will be driven to rotate when the rotating rod 12 rotates forward. At this time, the first gear 21 is in idle rotation. When the rotating rod 12 is reversed, the first gear 21 will rotate. At this time, the sleeve 13 is in idle rotation. First, the rotating rod 12 can be reversed. The rotation of the rotating rod 12 drives the first gear 21 to rotate. The rotation of the first gear 21 drives the second gear 23 to rotate. The rotation of the second gear 23 drives the second reciprocating screw 22 to rotate. The rotation of the second reciprocating screw 22 drives the second bearing seat 24 Rotate, the second bearing seat 24 rotates to drive the cross plate 26 to move downward, the cross plate 26 moves downward to drive the support frame 27 to move downward, the support frame 27 moves downward to drive the connecting plate 7 to move downward, and since the main body 2 is generally designed to be arc-shaped, the dust inside the main body 2 is generally concentrated on the connecting plate 7, and the connecting plate 7 moves downward to drive dust and other impurities to move downward. When the second bearing seat 24 moves to the bottom, the rotating rod 12 can be made to rotate forward, and the rotating rod 12 rotates forward to drive the sleeve 13 to rotate, and the sleeve 13 rotates to drive the first bevel gear 14 to rotate, and the first bevel gear 14 rotates to drive the second bevel gear 15 to rotate, and the second bevel gear 15 rotates to drive the first reciprocating screw rod 16 to rotate, and the first reciprocating screw rod 16 rotates to drive the connecting rod 18 to move, and the connecting rod 18 moves to drive the moving plate 19 to move, and the moving plate 19 moves to drive the brush 20 to move, and the brush 20 moves to clean the dust on the top of the connecting plate 7.

[0036] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An adaptive frequency broadband antenna, comprising a baseband (1) and a body (2), characterized in that: The baseband (1) is provided with a voltage-controlled oscillator (3) at a connection end, the voltage-controlled oscillator (3) is provided with an RF module (4) at a connection end, the RF module (4) is provided with a Match module (5) at a connection end, the Match module (5) is provided with a Radiato module (6) at a connection end, and the baseband (1) is electrically connected to the Match module (5); A cleaning mechanism is provided at the bottom of the body (2), and the cleaning mechanism comprises a connecting plate (7), and the connecting plate (7) is arranged inside the body (2); a connecting block (8) is fixedly provided on one side of the body (2); a supporting frame (9) is fixedly provided at the bottom of the connecting block (8); a supporting plate (10) is fixedly provided at the bottom of the supporting frame (9); a motor (11) is fixedly provided at the top of the inner cavity of the supporting frame (9); the motor (11) is fixedly connected to a rotating rod (12) via an output shaft; a sleeve (13) is provided outside the rotating rod (12); the sleeve (13) and the rotating rod (12) are connected via a one-way bearing; a first bevel gear (14) is fixedly provided outside the sleeve (13); a second bevel gear (15) is provided on one side of the first bevel gear (14); and the second bevel gear (15) is fixedly provided on the inner cavity of the supporting frame (9). (15) meshes with the first bevel gear (14); a first reciprocating screw rod (16) is fixedly provided on one side of the second bevel gear (15); one end of the first reciprocating screw rod (16) extends out of one side of the support frame (9); a first bearing seat (17) is provided outside the first reciprocating screw rod (16); the first bearing seat (17) is connected to the first reciprocating screw rod (16) through a ball nut pair; two connecting rods (18) are fixedly provided on one side of the first bearing seat (17); the two connecting rods (18) both extend out of one side of the support frame (9); a movable plate (19) is provided on one side of the support frame (9); one side of the movable plate (19) is fixedly connected to the two connecting rods (18); a brush (20) is fixedly provided at the bottom of the movable plate (19); and the cleaning mechanism also includes an auxiliary component; The auxiliary component comprises a first gear (21), the first gear (21) is arranged outside the rotating rod (12) and is connected to the rotating rod (12) through a one-way bearing, a second reciprocating screw (22) is arranged on the top of the support plate (10), the second reciprocating screw (22) is connected to the support plate (10) through a bearing, a second gear (23) is fixedly arranged outside the second reciprocating screw (22), the second gear (23) is arranged on one side of the first gear (21) and meshes with the first gear (21), a second bearing seat (24) is arranged outside the second reciprocating screw (22), and the second bearing seat (24) is connected to the second reciprocating screw (22) through a ball nut pair.

2. The adaptive frequency broadband antenna according to claim 1, characterized in that: A through slot (25) is provided on one side of the support frame (9); a transverse plate (26) is fixedly provided on one side of the second bearing seat (24); the transverse plate (26) passes through the through slot (25) and extends out of one side of the support frame (9); a support frame (27) is fixedly provided on the top of the transverse plate (26); and the top of the support frame (27) is fixedly connected to the bottom of the connecting plate (7).

3. The adaptive frequency broadband antenna according to claim 1, characterized in that: A baffle (28) is fixedly provided inside the support frame (9), and the top of the second reciprocating screw rod (22) is connected to the bottom of the baffle (28) via a bearing.

4. The adaptive frequency broadband antenna according to claim 3, characterized in that: A connecting plate (29) is fixedly provided on the top of the baffle (28), and the connecting plate (29) is connected to the first reciprocating screw rod (16) via a bearing.

5. The adaptive frequency broadband antenna according to claim 1, characterized in that: A circular plate (30) is fixedly provided on one side of the first reciprocating screw rod (16).

6. The adaptive frequency broadband antenna according to claim 1, characterized in that: The bottom of the rotating rod (12) is connected to the top of the supporting plate (10) via a bearing.

7. The adaptive frequency broadband antenna according to claim 1, characterized in that: The first reciprocating screw rod (16) is connected to the support frame (9) via a bearing.

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