Full-frequency antenna

Abstract

The utility model provides a full-frequency antenna. The full-frequency antenna comprises a circuit board, a first substrate, a second substrate and a radiation patch assembly, the radiation patch assembly comprises a first radiation patch, a second radiation patch and a third radiation patch. The first substrate and the second substrate are stacked on the circuit board; the second substrate is located between the first substrate and the circuit board, the first radiation patch and the second radiation patch are arranged on the surface of the side, away from the second substrate, of the first substrate, a through hole is formed in the middle of the second radiation patch, the first radiation patch is arranged in the inner side area of the hole, and the first radiation patch and the second radiation patch are arranged at intervals. The third radiation patch is arranged on the surface of one side, facing the first substrate, of the second substrate; the first radiation patch, the second radiation patch and the third radiation patch are all used for resonance, the resonance frequency is sequentially reduced, and the full-frequency antenna is configured to be compatible with multiple navigation systems and cover the full frequency band of the multiple navigation systems. The full-frequency antenna can be compatible with all current mainstream GNSS (Global Navigation Satellite System) navigation and positioning systems to realize full-frequency navigation.

Description

Technical Field

[0001] This utility model relates to the field of satellite navigation technology, specifically to a full-band antenna. Background Technology

[0002] Navigation and positioning technology has permeated all aspects of human life. With the advancement of science and technology and the development of society, people have increasingly higher requirements for accurate and reliable navigation and positioning. Due to the complexity and variability of the real environment, a single navigation system is no longer sufficient to meet people's needs. Multiple navigation systems can simultaneously measure the carrier and comprehensively process the navigation information, thereby obtaining more accurate and reliable results and improving navigation and positioning capabilities.

[0003] However, antenna products in related technologies, such as aviation antennas and UAV antennas, are mostly single-system, single-frequency or dual-frequency positioning products, which cannot be compatible with all mainstream GNSS navigation and positioning systems, nor can they achieve full-frequency navigation functionality. These are technical problems that urgently need to be solved in this field. Utility Model Content

[0004] This utility model discloses a full-band antenna to solve the technical problem that existing antenna products are incompatible with all mainstream GNSS navigation and positioning systems and cannot achieve full-band navigation.

[0005] According to a first aspect, this application provides a full-band antenna, including a circuit board, a first substrate, a second substrate, and a radiating patch assembly; the radiating patch assembly includes a first radiating patch, a second radiating patch, and a third radiating patch.

[0006] Wherein: a first substrate and a second substrate are stacked on a circuit board; along the stacking direction of the first substrate and the second substrate, the second substrate is located between the first substrate and the circuit board; a first radiating patch and a second radiating patch are disposed on the side surface of the first substrate away from the second substrate; the second radiating patch has a through opening in the middle; the first radiating patch is disposed in the inner area of ​​the opening and is spaced apart from the second radiating patch; and a third radiating patch is disposed on the side surface of the second substrate facing the first substrate.

[0007] The first, second, and third radiating patches are all used for resonance, and the resonant frequencies decrease sequentially. The full-band antenna is configured to be compatible with multiple navigation systems and cover the full frequency band of multiple navigation systems through the first, second, and third radiating patches.

[0008] In one alternative embodiment, along the stacking direction, the outer contour of the first substrate is projected onto the area enclosed by the outer contour of the second substrate and has a spacing; the third radiating patch is at least partially located outside the outer contour of the first substrate.

[0009] In one alternative embodiment, the first, second, and third radiating patches are concentrically arranged, and along the stacking direction, the outer contour of the second radiating patch is projected onto the area enclosed by the outer contour of the third radiating patch and has a gap.

[0010] In one alternative embodiment, the first substrate and the second substrate are shaped and concentrically arranged, and the dimensions of the circuit board, the second substrate, and the first substrate decrease in that order.

[0011] In one alternative embodiment, the full-band antenna further includes a feed probe for electrical connection to a feed network, the feed probe being electrically connected to at least one of a first substrate and a second substrate; the full-band antenna also has four first metallized vias orthogonally distributed, the first metallized vias penetrating the first radiating patch and the first substrate, the feed probes being spaced apart from the first metallized vias.

[0012] In one alternative embodiment, the full-band antenna further includes a second metallized via, which penetrates the second radiating patch and the first substrate.

[0013] The power supply probe includes a first power supply pin and a second power supply pin. The first power supply pin is electrically connected to a first radiating patch and is spaced apart from a first metallized via. The second power supply pin is electrically connected to a second radiating patch and is spaced apart from a second metallized via.

[0014] In one optional embodiment, the dielectric constant of the first substrate is 15-16, and / or the dielectric constant of the second substrate is 11-12.

[0015] In one alternative embodiment, the radiating patch assembly further includes a parasitic patch, wherein at least one of the first substrate and the second substrate is provided with the parasitic patch.

[0016] In one alternative embodiment, the full-band antenna further includes a metal base plate for reflection, a circuit board disposed on the metal base plate, and a first substrate and a second substrate disposed on the side of the circuit board opposite to the metal base plate.

[0017] In one alternative embodiment, the full-band antenna further includes a combining assembly and an RF connector. The metal base plate has a receiving cavity on the side facing the circuit board. The combining assembly is electrically connected to the circuit board and is housed in the receiving cavity. The RF connector is disposed on the metal base plate and is used for external connection to output RF signals.

[0018] According to the full-band antenna of this application, a first radiating patch and a second radiating patch are integrated on a first substrate. The first substrate can resonate to generate waveforms in two frequency bands. The first radiating patch corresponds to the S-band. The second substrate generates waveforms in a third frequency band through resonance of a third radiating patch. The full-band antenna of this application can increase S-band coverage and S-band radio measurement function with only a double-layer structure, realizing the technical effect of full-band navigation. It is compatible with all mainstream GNSS navigation and positioning systems, enabling the antenna to have multi-system navigation and positioning functions, while meeting the trend of antenna miniaturization and the need for multi-system integration. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the full-band antenna provided in some embodiments of this application.

[0020] Figure 2 for Figure 1 A schematic diagram of a full-band antenna with the radome omitted.

[0021] Figure 3 for Figure 2 An explosion diagram.

[0022] Figure 4 for Figure 3 Another perspective illustration.

[0023] Figure 5 This is a top view of number 2.

[0024] Figure 6 for Figure 5 AA section view in the image.

[0025] Attached image reference numeral: 100 - Full-band antenna;

[0026] 10-Circuit board; 20-First substrate; 30-Second substrate; 40-Radiating patch assembly; 41-First radiating patch; 42-Second radiating patch; 43-Third radiating patch; 44-Parasitic patch; 441-First parasitic patch; 442-Second parasitic patch; 50-Feed probe; 51-First feed probe; 52-Second feed probe; 53-Third feed probe; 54-Short circuit probe; 61-First metallized via; 62-Second metallized via; 63-Third metallized via; 64-Fourth metallized via; 65-Avoidance hole; 60-Metal base plate; 610-Receiving cavity; 70-Enclosure; 80-RF connector. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0028] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0029] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0030] Multi-band antenna products in related technologies have one antenna structure corresponding to one frequency band. In order to be compatible with multiple navigation systems and cover all frequency bands of multiple navigation systems, multiple antenna structures are required, which leads to the problem of large product size. There is a technical problem that it is not possible to well balance the development needs of antenna miniaturization and multi-band coverage.

[0031] To address the aforementioned technical problems, this embodiment provides a full-band antenna 100. Please refer to [reference needed]. Figures 1-6 The dual-band antenna includes a circuit board 10, a first substrate 20, a second substrate 30, and a radiating patch assembly 40; the radiating patch assembly 40 includes a first radiating patch 41, a second radiating patch 42, and a third radiating patch 43. Wherein:

[0032] A first substrate 20 and a second substrate 30 are stacked on a circuit board 10. Along the stacking direction of the first substrate 20 and the second substrate 30, the second substrate 30 is located between the first substrate 20 and the circuit board 10. A first radiating patch 41 and a second radiating patch 42 are disposed on the surface of the first substrate 20 facing away from the second substrate 30. The second radiating patch 42 has a through-hole in its center. The first radiating patch 41 is disposed within the inner region of the through-hole and spaced apart from the second radiating patch 42. A third radiating patch 43 is disposed on the surface of the second substrate 30 facing the first substrate 20. The first radiating patch 41, the second radiating patch 42, and the third radiating patch 43 are all used for resonance, with the resonant frequencies decreasing sequentially. The full-band antenna 100 is configured to be compatible with multiple navigation systems and cover the full frequency band of the multiple navigation systems through the first radiating patch 41, the second radiating patch 42, and the third radiating patch 43.

[0033] Please refer to Figures 1-6 The stacking direction of the first substrate 20 and the second substrate 30 is the Z direction, which is the thickness direction of the first substrate 20 and the second substrate 30, and also the thickness direction of the entire full-band antenna 100.

[0034] The first radiating patch 41 is disposed within the opening of the second radiating patch 42 and is spaced apart from the second radiating patch 42, so that the first radiating patch 41 and the second radiating patch 42 are separated. The distance between the two is called the gap spacing, and the size of the gap spacing is determined by the coupling effect.

[0035] The aforementioned first radiating patch 41, second radiating patch 42, and third radiating patch 43 are thin metal layers with specific shapes fabricated using photolithography for radiation. They are generally made of conductive materials such as gold or copper. This embodiment does not limit the specific structure and material selection of the first radiating patch 41, second radiating patch 42, and third radiating patch 43. Those skilled in the art can make adaptive adjustments according to actual needs. For example, as one embodiment, the first radiating patch 41, second radiating patch 42, and third radiating patch 43 can all be copper foil printed on a dielectric substrate.

[0036] According to the full-band antenna 100 of this embodiment, a first radiating patch 41 and a second radiating patch 42 are integrated on the first substrate 20. The first substrate 20 can resonate to generate waveforms of two frequency bands. The first radiating patch 41 corresponds to the S-band. The second substrate 30 generates a waveform of a third frequency band through the resonance of the third radiating patch 43. The full-band antenna 100 of this application can increase S-band coverage and S-frequency radio measurement function with only a double-layer structure, realizing the technical effect of full-band navigation. It can be compatible with all mainstream GNSS navigation and positioning systems, enabling the antenna to have multi-system navigation and positioning functions, while meeting the trend of antenna miniaturization and the need for multi-system integration.

[0037] For ease of understanding, the frequency band resonating with the first radiating patch 41 corresponds to the S-band, which can be understood as the high-frequency band of the multi-navigation system. The frequency band generated by the resonance of the second radiating patch 42 corresponds to the GNSS L1 band of the navigation system, which can be understood as the mid-frequency band of the multi-navigation system. The frequency band generated by the resonance of the third radiating patch 43 corresponds to the GNSS L2 band of the navigation system, which can be understood as the low-frequency band of the multi-navigation system. Thus, the first radiating patch 41, the second radiating patch 42, and the third radiating patch 43 cover the entire frequency band of the navigation system.

[0038] In some embodiments, please refer to Figures 1-6 Along the stacking direction, the outer contour of the first substrate 20 is projected orthographically onto the area enclosed by the outer contour of the second substrate 30 and has a gap, meaning there is a gap between the edges of the first substrate 20 and the edges of the second substrate 30. The third radiating patch 43 is at least partially located outside the outer contour of the first substrate 20, thus allowing the third radiating patch 43 to have an exposed portion. In other words, the third radiating patch 43 has a portion that is not pressed between the first substrate 20 and the second substrate 30, ensuring that the third radiating patch 43 can resonate stably. Orthographic projection is the projection along the stacking direction, and can also be understood as the projection from a top-down viewpoint.

[0039] In some embodiments, please refer to Figure 3 and Figure 5 The first radiating patch 41, the second radiating patch 42, and the third radiating patch 43 are concentrically arranged to ensure the radiating patches are aligned to maintain axial ratio performance, reduce deviations and influences, and achieve better resonance. To obtain better gain and reduce the impact of the third radiating patch 43 on the radiation performance of the second radiating patch 42, the outer contour of the second radiating patch 42 is projected onto the area enclosed by the outer contour of the third radiating patch 43 along the stacking direction with a gap. In other words, the outer contour of the third radiating patch 43 does not exceed the outer contour of the second radiating patch 42, thus effectively avoiding negative effects of the third radiating patch 43 on the second radiating patch 42 and improving the overall performance of the antenna.

[0040] In some embodiments, please refer to Figures 1-6 The first substrate 20 and the second substrate 30 are shaped and concentrically arranged. The dimensions of the circuit board 10, the second substrate 30, and the first substrate 20 decrease in order to balance antenna performance and size. For example, in one embodiment, the dimensions of the first substrate 20 are 33*33*3mm; the dimensions of the second substrate 30 are 38*38*6mm. The orthographic projection shapes of the first substrate 20 and the second substrate 30 are matched and are both square.

[0041] In some embodiments, the second radiating patch 42 and the third radiating patch 43 are shaped to match, for example, please refer to Figure 5 The orthographic projections of the second radiating patch 42 and the third radiating patch 43 in the stacking direction can both be squares.

[0042] In some embodiments, the shape of the opening of the second radiating patch 42 matches the shape of the first radiating patch 41. This invention does not specifically limit the shape of the first radiating patch 41; its shape is not limited to a circle, square, or other deformed shapes. For example, in some embodiments, the first radiating patch 41 can be generally cross-shaped, or it can be other symmetrical polygonal structures, such as a four-leaf clover shape or other regular polygons.

[0043] In some embodiments, taking the first radiating patch 41 as an example, please refer to... Figures 1-6 The outer periphery of the first radiating patch 41 may also be integrally formed with multiple protruding tuning stubs. Multiple low-frequency tuning stubs refer to two or more. The function of the tuning stubs is to facilitate easier adjustment of the center operating frequency. The multiple low-frequency tuning stubs are evenly distributed to ensure the geometric symmetry of the first radiating patch 41, thereby guaranteeing axial ratio performance. In some embodiments, the second radiating patch 42 and the third radiating patch may also be provided with tuning stubs as needed; this application does not impose limitations.

[0044] In some embodiments, please refer to Figures 2-6 The full-band antenna 100 also includes a feed probe 50 for electrical connection to a feed network. The feed probe 50 is electrically connected to at least one of the first substrate 20 and the second substrate 30. Direct electrical connection with the feed probe 50 forms a direct feed. The full-band antenna 100 also has four first metallized vias 61 orthogonally distributed. The first metallized vias 61 penetrate the first radiating patch 41 and the first substrate 20. The feed probe 50 is spaced apart from the first metallized vias 61. By adding the first metallized vias 61 spaced apart from the feed probe 50, the isolation of the S-band feed of the first radiating patch 41 can be effectively improved.

[0045] In some embodiments, please refer to Figures 2-6 The full-band antenna 100 also has a second metallized via 62, which penetrates the second radiating patch 42 and the first substrate 20. By adding the second metallized via 62, which is spaced apart from the feed probe 50, the feed isolation of the second radiating patch 42 can be effectively improved.

[0046] In some embodiments, please refer to Figures 2-6The feed probes include a first feed pin and a second feed pin. The first feed pin is electrically connected to the first radiating patch 41 and is spaced apart from the first metallized via 61. The second feed pin is electrically connected to the second radiating patch 42 and is spaced apart from the second metallized via 62. In this embodiment, both the first radiating patch 41 and the second radiating patch 42 employ a direct feed scheme, which helps ensure the antenna's resonance and feed performance. Furthermore, the first metallized via 61 and the second metallized via 62 effectively guarantee feed isolation.

[0047] In some embodiments, please refer to Figures 2-6 The power supply probe 50 also includes a short-circuit probe 54 and a third power supply probe 53. The short-circuit probe 54 is short-circuited and electrically connected to the first substrate 20 and the first radiating patch 41. The third power supply probe 53 is electrically connected to the third radiating patch 43, so that the third radiating patch 43 is also powered by direct power supply.

[0048] In some embodiments, please refer to Figures 2-6 The number of the first feed probe 51, the second feed probe 52, and the third feed probe 53 are all two. In some embodiments, please refer to... Figures 2-6 The third radiating patch 43 and the second substrate 30 are respectively provided with avoidance holes 65 for the first power supply probe 51 and the second power supply probe 52 to pass through, so as to reduce the mutual influence between the power supply of the first substrate 20 and the second substrate 30.

[0049] In some embodiments, the material of the power supply probe 50 may be copper, stainless steel, or aluminum alloy; the first short-circuit probe 54 and the second short-circuit probe 54 may also be selected from copper, stainless steel, or aluminum alloy. The first power supply probe 51, the second power supply probe 52, the third power supply probe 53, and the short-circuit probe 54 may be configured to be made of the same material or different materials; this embodiment does not impose specific limitations.

[0050] In some embodiments, to obtain better antenna performance, the dielectric constant of the first substrate 20 is 15-16, i.e., the first substrate 20 is a high-frequency board, so that the first substrate 20 has low loss and high dielectric constant performance; and / or, the dielectric constant of the second substrate 30 is 11-12, i.e., the second substrate 30 is a high-frequency board, so that the second substrate 30 has low loss and high dielectric constant performance.

[0051] In some embodiments, please refer to Figures 2-6The radiating patch assembly 40 also includes a parasitic patch 44, and at least one of the first substrate 20 and the second substrate 30 is provided with the parasitic patch 44. The design of the parasitic patch 44 can help to further reduce the size of the antenna. At the same time, the parasitic patch 44 can increase the electric field distribution in the horizontal direction to a certain extent, thereby widening the antenna beamwidth, improving the reception effect at low elevation angles, and reducing the back-radiated power, thus ensuring the gain distribution of the antenna.

[0052] In some embodiments, please refer to Figures 2-6 The parasitic patch 44 includes a plurality of first parasitic patches 441 and a plurality of second parasitic patches 442. The plurality of first parasitic patches 441 are disposed on the surface of the first substrate 20 away from the circuit board 10 and distributed on the outer periphery of the second radiating patch 42. The plurality of second parasitic patches 442 are disposed on the surface of the second substrate 30 away from the circuit board 10 and distributed on the outer periphery of the third radiating patch 43, so as to adjust the performance of the first substrate 20 and the second substrate 30 respectively.

[0053] In some embodiments, please refer to Figures 2-6 The full-band antenna 100 may also have a third metallized via 63 penetrating the first substrate 20 and the first parasitic patch 441. The third metallized via 63 provides a short-circuit electrical connection between the first parasitic patch 441 and the surface of the first substrate 20 near the circuit board 10. The third metallized via 63 effectively changes the edge electric field distribution of the first substrate 20, further reducing the size of the antenna and achieving miniaturization. Similarly, the full-band antenna 100 may also have a fourth metallized via 64 penetrating the second substrate 30 and the second parasitic patch 442, so that the second parasitic patch 442 is short-circuited to the surface of the second substrate 30 near the circuit board 10. The fourth metallized via 64 effectively changes the edge electric field distribution of the second substrate 30, further reducing the size of the antenna and achieving miniaturization.

[0054] In some embodiments, please refer to Figures 2-6 The full-band antenna 100 also includes a metal base plate 60 for reflection. The circuit board 10 is disposed on the metal base plate 60. The first substrate 20 and the second substrate 30 are disposed on the side of the circuit board 10 away from the metal base plate 60. The metal base plate 60 is used for reflection and also serves as the mounting base of the full-band antenna 100.

[0055] In some embodiments, please refer to Figures 2-6 The full-band antenna 100 also includes a combiner assembly and an RF connector 80. The metal base plate 60 has a receiving cavity 610 on the side facing the circuit board 10. The combiner assembly is electrically connected to the circuit board 10 and is housed in the receiving cavity 610. The combiner assembly is used for electrical connection with the feed pin. The RF connector 80 is disposed on the metal base plate 60 and is used for external connection to output RF signals.

[0056] In some embodiments, the full-band antenna 100 may further include a combining amplifier module, i.e., an LNA module, to implement the functions required by the full-band antenna 100.

[0057] In some embodiments, the first substrate 20 can be soldered to the second substrate 30 by reflow soldering, and the second substrate 30 can also be soldered to the circuit board 10 by reflow soldering, so as to improve the connection and fixing strength of the first substrate 20, the second substrate 30 and the circuit board 10 and ensure the connection stability of the three.

[0058] In some embodiments, please refer to Figure 1 The full-band antenna 100 may also include a cover 70, which is placed on a metal base plate 60 to form a receiving cavity, and the first substrate 20, the second substrate 30, and the circuit board 10 are all located in the receiving cavity.

[0059] In summary, the full-band antenna 100 provided in this embodiment has at least the following beneficial effects:

[0060] The first substrate 20 integrates a first radiating patch 41 and a second radiating patch 42. The first substrate 20 can resonate to generate waveforms in two frequency bands. The first radiating patch 41 corresponds to the S-band. The second substrate 30 generates a waveform in a third frequency band through resonance with a third radiating patch 43. The full-band antenna 100 of this application can increase S-band coverage and S-band radio measurement function with only a double-layer structure, realizing the technical effect of full-band navigation. It can be compatible with all mainstream GNSS navigation and positioning systems, enabling the antenna to have multi-system navigation and positioning functions, while meeting the trend of antenna miniaturization and the need for multi-system integration.

[0061] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A full-band antenna, characterized in that, It includes a circuit board, a first substrate, a second substrate, and a radiating patch assembly; the radiating patch assembly includes a first radiating patch, a second radiating patch, and a third radiating patch; Wherein: the first substrate and the second substrate are stacked on the circuit board; along the stacking direction of the first substrate and the second substrate, the second substrate is located between the first substrate and the circuit board; the first radiating patch and the second radiating patch are disposed on the side surface of the first substrate away from the second substrate; the second radiating patch has a through hole in the middle; the first radiating patch is disposed in the inner area of ​​the opening and is spaced apart from the second radiating patch; and the third radiating patch is disposed on the side surface of the second substrate facing the first substrate. The first radiating patch, the second radiating patch, and the third radiating patch are all used for resonance, and the resonant frequencies decrease sequentially. The full-band antenna is configured to be compatible with multiple navigation systems and cover the full frequency band of multiple navigation systems through the first radiating patch, the second radiating patch, and the third radiating patch.

2. The full-band antenna as described in claim 1, characterized in that, Along the stacking direction, the outer contour of the first substrate is projected onto the area enclosed by the outer contour of the second substrate and has a spacing; the third radiating patch is at least partially located outside the outer contour of the first substrate.

3. The full-band antenna as described in claim 2, characterized in that, The first radiating patch, the second radiating patch, and the third radiating patch are arranged concentrically. Along the stacking direction, the outer contour of the second radiating patch is projected onto the area enclosed by the outer contour of the third radiating patch and has a spacing.

4. The full-band antenna as described in claim 3, characterized in that, The first substrate and the second substrate are shaped and concentrically arranged, and the dimensions of the circuit board, the second substrate and the first substrate decrease in that order.

5. The full-band antenna as described in claim 1, characterized in that, The full-band antenna further includes a feed probe for electrical connection to a feed network, the feed probe being electrically connected to at least one of the first substrate and the second substrate; the full-band antenna also has four first metallized vias distributed in an orthogonal manner, the first metallized vias penetrating the first radiating patch and the first substrate, and the feed probes being spaced apart from the first metallized vias.

6. The full-band antenna as described in claim 5, characterized in that, The full-band antenna also has a second metallized via, which penetrates the second radiating patch and the first substrate; The power supply probe includes a first power supply pin and a second power supply pin. The first power supply pin is electrically connected to the first radiating patch and is spaced apart from the first metallized via. The second power supply pin is electrically connected to the second radiating patch and is spaced apart from the second metallized via.

7. The full-band antenna as described in any one of claims 1-6, characterized in that, The dielectric constant of the first substrate is 15 to 16, and / or the dielectric constant of the second substrate is 11 to 12.

8. The full-band antenna as described in any one of claims 1-6, characterized in that, The radiation patch assembly further includes a parasitic patch, and at least one of the first substrate and the second substrate is provided with the parasitic patch.

9. The full-band antenna as described in any one of claims 1-6, characterized in that, The full-band antenna also includes a metal base plate for reflection, and the circuit board is disposed on the metal base plate, with the first substrate and the second substrate disposed on the side of the circuit board away from the metal base plate.

10. The full-band antenna as described in claim 9, characterized in that, The full-band antenna also includes a combining component and an RF connector. The metal base plate has a receiving cavity on the side facing the circuit board. The combining component is electrically connected to the circuit board and is housed in the receiving cavity. The RF connector is disposed on the metal base plate and is used for external connection to output RF signals.

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