High-power ultra-wideband antenna capable of integrating radio frequency front end
By integrating the RF front end on a high-power ultra-wideband antenna and using the antenna's own installation space to form magnetic dipoles, the problem of large antenna space occupies and difficult to trace in the prior art is solved, and the effect of compact structure and efficient radiation is achieved.
Patent Information
- Application Number
- CN202411855652.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-03-11
AI Technical Summary
When existing high-power ultra-wideband antennas integrate RF front-ends, they occupy a large space and are not easy to route, making it difficult to meet the needs of ultra-wideband, high power, high gain and high efficiency.
A high-power ultra-wideband antenna that can integrate the RF front end is designed. By integrating the high-power source and control board on the antenna and using the antenna's own installation space to form magnetic dipoles, the additional installation structure is reduced, and space saving and structural compactness are achieved.
It realizes the compact structure of the antenna, reduces cost and production difficulty, and has good application prospects, can effectively radiate electromagnetic waves and meet the needs of high-power ultra-wideband.
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Figure CN119601966A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present disclosure relate to the field of antenna technology, and in particular to a high-power ultra-wideband antenna capable of integrating a radio frequency front end. Background Art
[0002] High-power ultra-wideband impulse pulse signals have very strong transmission capabilities and extremely high long-range resolution, so various ultra-wideband radiation systems are widely used in military / commercial ultra-wideband communications, radars, and electromagnetic interference systems. Antennas are required to transmit electromagnetic pulse energy from the source to free space, so the performance of such antennas needs to match the characteristics of electromagnetic pulse signals. Research is mainly carried out around the ultra-wideband, high power, high gain, and high efficiency of the antenna. The current common integration method is to install the RF front end on the bottom backplane of the antenna, which takes up a lot of space and is not easy to route.
[0003] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.
[0004] It should be noted that this section is intended to provide background or context for the technical solutions of the present disclosure stated in the claims. The description herein is not admitted to be prior art by virtue of being included in this section. Summary of the invention
[0005] The purpose of the embodiments of the present disclosure is to provide a high-power ultra-wideband antenna that can be integrated with a radio frequency front end, thereby overcoming one or more problems caused by limitations and defects of related technologies at least to a certain extent.
[0006] The present disclosure provides a high-power ultra-wideband antenna capable of integrating a radio frequency front end, including:
[0007] An antenna body, the antenna body comprising a left arm and a right arm, the left arm being provided with a left arm cover plate, and the left arm and the right arm both having installation spaces;
[0008] An electric dipole, the electric dipole being arranged on the antenna body;
[0009] A magnetic dipole, wherein the number of the magnetic dipoles is three, and the three magnetic dipoles are formed by the installation space of the right arm; the electric dipole and the magnetic dipole are used to radiate electromagnetic waves;
[0010] A feeding structure, wherein the feeding structure is arranged on the antenna body;
[0011] A high power source and a control board, both of which are arranged on the left arm cover, the high power source is used to generate a high power voltage, and the control board is used to generate an extremely narrow pulse;
[0012] Wherein, the antenna body, electric dipole, magnetic dipole and feeding structure are all metal structures.
[0013] In one embodiment of the present disclosure, the control board, the high power source and the feeding structure are connected in sequence.
[0014] In one embodiment of the present disclosure, the left arm cover plate includes: a front cover plate and a rear cover plate, the high power source is arranged on the front cover plate, and the control board is arranged on the rear cover plate.
[0015] In one embodiment of the present disclosure, one of the three magnetic dipoles is disposed above the other two, and a partition is disposed between the upper magnetic dipole and the lower magnetic dipole.
[0016] In one embodiment of the present disclosure, a bottom plate is provided at the lower end of the antenna body, the bottom plate is used to install the feeding structure, and side plates are provided on both sides of the antenna body.
[0017] In one embodiment of the present disclosure, a plurality of weight-reducing holes are provided on both side panels.
[0018] In one embodiment of the present disclosure, the thickness d1 of the bottom plate is 5 mm, and the thickness d2 of the side plate is 4 mm.
[0019] In one embodiment of the present disclosure, the frequency band of the antenna is 0.26 GHz to 2.65 GHz, and the absolute bandwidth is 10:1.
[0020] In one embodiment of the present disclosure, the length L of the antenna is 280-320 mm, the width W is 220-240 mm, and the height H is 260-280 mm.
[0021] In one embodiment of the present disclosure, the thickness of the electric dipole and the magnetic dipole are both 2.2-2.8 mm.
[0022] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:
[0023] In the high-power ultra-wideband antenna with integrated RF front end in the embodiment of the present disclosure, the antenna body, electric dipole, magnetic dipole and feeding structure are all made of metal structure, so that the antenna has the characteristic of high power tolerance; the high-power source and the control board are integrated on the antenna, and the magnetic dipole is formed by using the installation space of the right arm of the antenna itself, without adding an additional installation structure, which not only saves space and makes the antenna structure more compact, but also has the characteristics of low cost and simple production, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.
[0025] Figure 1 A schematic diagram showing the structure of a high-power ultra-wideband antenna that can be integrated with a radio frequency front end in an exemplary embodiment of the present disclosure;
[0026] Figure 2 A schematic diagram showing the size and structure of a high-power ultra-wideband antenna that can be integrated with a radio frequency front end in an exemplary embodiment of the present disclosure;
[0027] Figure 3 A diagram showing the standing wave characteristics of a high-power ultra-wideband antenna unit that can be integrated with a radio frequency front end in an exemplary embodiment of the present disclosure;
[0028] Figure 4 The radiation pattern of a high-power ultra-wideband antenna radiating element that can be integrated with a radio frequency front end in an exemplary embodiment of the present disclosure is shown;
[0029] Figure 5 The radiation pattern (normalized) of a high-power ultra-wideband antenna radiation element that can be integrated with a radio frequency front end in an exemplary embodiment of the present disclosure is shown.
[0030] Reference numerals:
[0031] 10. Electric dipole; 20. Magnetic dipole; 30. Feed structure; 40. High power source; 41. Second interface; 42. Third interface; 50. Control board; 51. First interface; 60. Partition; 70. Bottom plate; 80. Side plate; 81. Weight reduction hole. DETAILED DESCRIPTION
[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0033] In addition, the accompanying drawings are only schematic illustrations of the embodiments of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.
[0034] Please refer to Figure 1 In this example implementation, a high-power ultra-wideband antenna with an integrated radio frequency front end is provided, which may include: an antenna body, an electric dipole 10, a magnetic dipole 20, a feeding structure 30, a high-power source 40 and a control board 50.
[0035] Specifically, the antenna body includes a left arm and a right arm, the left arm is provided with a left arm cover, and the left arm and the right arm both have installation space. The electric dipole 10 is arranged on the antenna body; the number of the magnetic dipoles 20 is three, and the three magnetic dipoles 20 are formed by the installation space of the right arm. The electric dipole 10 and the magnetic dipole 20 are used to radiate electromagnetic waves. The feeding structure 30 is arranged on the antenna body. The high power source 40 and the control board 50 are both arranged on the left arm cover, the high power source 40 is used to generate a high power voltage, and the control board 50 is used to generate an extremely narrow pulse. Among them, the control board 50, the high power source 40 and the feeding structure 30 are connected in sequence. The extremely narrow pulse generated by the control board 50 is sent to the second interface 41 of the high power source 40 through its first interface 51, and after being processed by the high power source 40, it is sent to the feeding structure 30 through the third interface 42 of the high power source 40, and then radiated to the free space by the antenna. The antenna body, the electric dipole 10, the magnetic dipole 20 and the feeding structure 30 are all metal structures.
[0036] Figure 1 Figure b is a schematic diagram of the structure after Figure a is rotated 45°.
[0037] In the present embodiment, the antenna body, the electric dipole 10, the magnetic dipole 20 and the feeding structure 30 are all made of metal structures, so that the antenna has the characteristics of high power tolerance; the high power source 40 is integrated on the antenna, and the magnetic dipole 20 is arranged in the installation space of the right arm of the antenna itself, without adding an additional installation structure, which not only saves space and makes the antenna structure more compact, but also has the characteristics of low cost and simple production, and has good application prospects.
[0038] Based on the above embodiments, optionally, in some embodiments, the left arm cover plate includes: a front cover plate and a rear cover plate, the high power source 40 is arranged on the front cover plate, and the control board 50 is arranged on the rear cover plate. The installation position of the left arm cover plate is fully utilized, and the high power source 40 and the control board 50 are reasonably installed.
[0039] Optionally, in some embodiments, one of the three magnetic dipoles 20 is disposed above the other two, and a partition 60 is disposed between the upper magnetic dipole 20 and the lower magnetic dipole 20 to isolate the two magnetic dipoles 20. The space at the lower part of the right arm of the present application constitutes three magnetic dipoles 20, and when an ultra-wideband pulse is used to excite the electric dipole 10 antenna and the magnetic dipole 20 antenna, the phase difference between the electric dipole 10 antenna and the magnetic dipole 20 antenna in the far field is orthogonal, and the absolute bandwidth reaches 10:1.
[0040] A bottom plate 70 is provided at the lower end of the antenna body, and the bottom plate 70 is used to install the feed structure 30, and is also used to install the interface of the high power source 40 and the control board 50. Side plates 80 are provided on both sides of the antenna body, and a plurality of weight-reducing holes are provided on the side plates 80, such as 9 holes arranged in an array, but it is not limited thereto.
[0041] In the above embodiments, the performance parameters or size parameters of each component are as follows:
[0042] The frequency band of the antenna is 0.26 GHz to 2.65 GHz, and the absolute bandwidth is 10:1;
[0043] Please refer to Figure 2 , Figure 2 Figure b is a 45° rotation of Figure a. The length L of the antenna is 280-320 mm, such as 300 mm, etc.; the width W is 220-240 mm, such as 235 mm, etc.; the height H is 260-280 mm, such as 275 mm;
[0044] The thickness d1 of the bottom plate 70 is 5 mm, the thickness d2 of the side plate is 4 mm, the surface formula of the electric dipole 10 is Z=55.5*ln(y+1), and its thickness d3 is 2.5 mm. The height H1 of the two magnetic dipoles 20 below is 96 mm, and the lengths L2 and L1 are 21 mm and 116.5 mm, respectively. The width W1 of the partition plate 60 between the upper magnetic dipole 20 and the lower magnetic dipole 20 is 45 mm, and the thickness d3 is 2.5 mm.
[0045] The distance L3 between the RF connector 30 and the left arm is 16.5 mm, the width W2 of the weight-reducing hole 81 of the antenna side plate 80 is 60 mm, and the height H2 is 60 mm.
[0046] The standing wave ratio of the embodiment using this parameter design is given by Figure 3 It can be seen that in the frequency band of 0.26GHz to 2.65GHz, the standing wave ratio of the antenna is less than 2, which meets the requirements of engineering applications.
[0047] Figure 4 , Figure 5This is the radiation pattern of the embodiment of the parameter design. It can be seen that at the center frequency of 1GHz, the gain of the antenna is 7.59dB, and the scanning range of the antenna in azimuth and elevation is ±35° and ±25° respectively. It can be seen that the antenna has good gain index and scanning characteristics, and is very suitable for the application of compact RF integrated antenna.
[0048] In summary, the present invention provides a high-power ultra-wideband antenna with integrated RF front-end, which integrates the RF front-end that can generate extremely narrow pulses and high-power voltage into the ultra-wideband antenna, can save space and make the antenna structure more compact, and its metal structure has the characteristics of low cost, simple production, and high power tolerance, and has good application prospects.
[0049] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present disclosure.
[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0051] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0052] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0054] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. A high-power ultra-wideband antenna with integrated radio frequency front end, characterized in that: include: An antenna body, the antenna body comprising a left arm and a right arm, the left arm being provided with a left arm cover plate, and the left arm and the right arm both having installation spaces; An electric dipole, the electric dipole being arranged on the antenna body; A magnetic dipole, wherein the number of the magnetic dipoles is three, and the three magnetic dipoles are formed by the installation space of the right arm; the electric dipole and the magnetic dipole are used to radiate electromagnetic waves; A feeding structure, wherein the feeding structure is arranged on the antenna body; A high power source and a control board, both of which are arranged on the left arm cover, the high power source is used to generate a high power voltage, and the control board is used to generate an extremely narrow pulse; Wherein, the antenna body, electric dipole, magnetic dipole and feeding structure are all metal structures.
2. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 1, characterized in that: The control board, the high power source and the feeding structure are connected in sequence.
3. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 1, characterized in that: The left arm cover plate comprises: a front cover plate and a rear cover plate, the high power source is arranged on the front cover plate, and the control board is arranged on the rear cover plate.
4. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 1, characterized in that: One of the three magnetic dipoles is arranged above the other two, and a partition is arranged between the upper magnetic dipole and the lower magnetic dipole.
5. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 1, characterized in that: A bottom plate is provided at the lower end of the antenna body, and the bottom plate is used to install the feeding structure. Side plates are provided on both sides of the antenna body.
6. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 5, characterized in that: A plurality of weight-reducing holes are provided on the two side panels.
7. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 5, characterized in that: The thickness d1 of the bottom plate is 5 mm, and the thickness d2 of the side plate is 4 mm.
8. The high-power ultra-wideband antenna with integrated radio frequency front end according to claim 1, characterized in that: The frequency band of the antenna is 0.26 GHz to 2.65 GHz, and the absolute bandwidth is 10:
1.
9. The high-power ultra-wideband antenna with integrated radio frequency front end according to any one of claims 1 to 8, characterized in that: The antenna has a length L of 280-320 mm, a width W of 220-240 mm, and a height H of 260-280 mm.
10. The high-power ultra-wideband antenna with integrated radio frequency front end according to any one of claims 1 to 8, characterized in that: The thickness of the electric dipole and the magnetic dipole are both 2.2-2.8 mm.