Medium resonator antenna with adjustable beam deflection angle and electronic device
By setting a sliding second dielectric resonator and a locking structure on the substrate, the problem of fixed and unadjustable beam angle of existing tilted beam antennas is solved, realizing flexible adjustment of beam deflection angle and improving the flexibility and versatility of the antenna.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN SUNWAY COMM
- Filing Date
- 2023-05-15
- Publication Date
- 2026-05-19
AI Technical Summary
The fixed and non-adjustable beam angle of existing tilting beam antennas limits their flexibility and versatility.
Design a dielectric resonator antenna with adjustable beam deflection angle. The beam deflection angle can be adjusted by setting a sliding second dielectric resonator and a locking structure on the substrate.
It enables flexible adjustment of beam deflection angle, improves the flexibility and versatility of tilt beam antennas, and the dielectric resonator is small in size and low in cost.
Smart Images
Figure CN116613514B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wireless communication technology, and in particular to a dielectric resonator antenna with adjustable beam deflection angle and an electronic device. Background Technology
[0002] Tilted beam antennas are widely used in various applications such as 4G / 5G base station systems, 5G millimeter-wave terminals, and radar scanning. Currently, beam tilting is mainly achieved through array antenna pattern synthesis or by using specially designed element antennas. However, the large size and complex feeding network of array antennas limit their application range. Although specially designed tilted beam element antennas can overcome these drawbacks, the beam angle used to achieve the tilted beam number is often fixed and cannot be adjusted. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a dielectric resonator antenna and electronic device with adjustable beam deflection angle, which can realize the adjustment of beam deflection angle and improve the flexibility and versatility of tilted beam antenna.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a dielectric resonator antenna with adjustable beam deflection angle, comprising a substrate, a dielectric resonator, and a housing, wherein the dielectric resonator comprises a first dielectric resonator and at least one second dielectric resonator, the first dielectric resonator being cuboid in shape, the second dielectric resonator being right triangular prism in shape, and the at least one second dielectric resonator being stacked in sequence to form a right triangular prism with a right-angled triangle as the base; the housing is provided with a housing cavity, and the housing cavity has an opening;
[0005] The first dielectric resonator is disposed on the substrate; the accommodating member is located above the substrate and on one side of the first dielectric resonator, and the opening of the accommodating cavity faces the first dielectric resonator; each second dielectric resonator is slidably disposed in the accommodating cavity; when the at least one second dielectric resonator slides out of the accommodating cavity in sequence, they are stacked sequentially on the side of the first dielectric resonator away from the substrate.
[0006] The dielectric resonator is a ceramic dielectric resonator; the housing is made of plastic.
[0007] The present invention also proposes an electronic device comprising a dielectric resonator antenna with adjustable beam deflection angle as described above.
[0008] The beneficial effects of this invention are as follows: When adjusting the beam deflection angle, the second dielectric resonators are released sequentially from bottom to top, stacking them on top of the first dielectric resonator to form a right triangular prism with a right-angled triangle base. The number of released second dielectric resonators affects the vertical height (i.e., the length of the right-angled side of the base) of the right triangular prism, and this height has a linear relationship with the beam deflection angle. Therefore, by controlling the number of released second dielectric resonators, the vertical height of the right triangular prism can be controlled, thereby adjusting the beam deflection angle. The dielectric resonator antenna, constructed from a ceramic body, offers high processing precision, small size in the millimeter-wave band, and lower cost, providing significant advantages over PCBs. This invention enables beam deflection angle adjustment, improving the flexibility and versatility of tilted beam antennas. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of a dielectric resonator antenna with adjustable beam deflection angle according to Embodiment 1 of the present invention. Figure 1 ;
[0010] Figure 2 This is a schematic diagram of an antenna capable of generating tilted beams.
[0011] Figure 3 for Figure 2 A schematic diagram showing the relationship between the height h and the beam deflection angle θ in the image;
[0012] Figure 4 This is a schematic diagram of the structure of a dielectric resonator antenna with adjustable beam deflection angle according to Embodiment 1 of the present invention. Figure 2 ;
[0013] Figure 5 for Figure 4 A side view diagram.
[0014] Label Explanation:
[0015] 1. Substrate; 2. Dielectric resonator; 3. Receiving component; 4. Support component; 5. Limiting component; 6. Locking structure;
[0016] 21. First dielectric resonator; 22. Second dielectric resonator;
[0017] 31. Receptacle cavity;
[0018] 61. Socket; 62. Through hole; 63. Insert rod. Detailed Implementation
[0019] To explain the technical content, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0020] Please see Figure 1An adjustable beam deflection angle dielectric resonator antenna includes a substrate, a dielectric resonator, and a housing. The dielectric resonator includes a first dielectric resonator and at least one second dielectric resonator. The first dielectric resonator is cuboid in shape, and the second dielectric resonator is a right triangular prism in shape. The at least one second dielectric resonator, when stacked sequentially, forms a right triangular prism with a right-angled triangle base. The housing has a housing cavity with an opening.
[0021] The first dielectric resonator is disposed on the substrate; the accommodating member is located above the substrate and on one side of the first dielectric resonator, and the opening of the accommodating cavity faces the first dielectric resonator; each second dielectric resonator is slidably disposed in the accommodating cavity; when the at least one second dielectric resonator slides out of the accommodating cavity in sequence, they are stacked sequentially on the side of the first dielectric resonator away from the substrate.
[0022] The dielectric resonator is a ceramic dielectric resonator; the housing is made of plastic.
[0023] As can be seen from the above description, the beneficial effects of the present invention are: it can realize the adjustment of the beam deflection angle, and improve the flexibility and versatility of the tilted beam antenna.
[0024] Furthermore, it also includes at least one set of locking structures, with each second dielectric resonator corresponding to each set of locking structures; the locking structures are disposed on the accommodating member and the corresponding second dielectric resonator;
[0025] When any one of the locking structures in the same group is in a locked state, the second dielectric resonator corresponding to the same group of locking structures is housed in the accommodating cavity.
[0026] When all locking structures in the same group are in the unlocked state, the second dielectric resonator corresponding to the same group of locking structures can slide within the accommodating cavity and can slide out of the accommodating cavity.
[0027] As can be seen from the above description, by setting a locking structure, the relative position of the second dielectric resonator and the accommodating cavity can be effectively controlled.
[0028] Furthermore, the locking structure includes a socket disposed on the second dielectric resonator, a through hole disposed on the receiving member, and a plug rod, wherein the through hole connects the receiving cavity to the external space of the receiving member, and the plug rod is adapted to the socket and the through hole;
[0029] When the second dielectric resonator is located within the accommodating cavity, the socket can be aligned with the through hole, and after alignment, the insertion rod can be detachably inserted into the socket through the through hole.
[0030] As described above, when the insertion rod passes through the through hole and is inserted into the socket, the locking structure is in a locked state, allowing the corresponding second dielectric resonator to be housed within the accommodating cavity and prevent it from slipping out. When the insertion rod is pulled out, the locking structure is in an unlocked state.
[0031] Furthermore, the receiving member is inclined, and the opening of the receiving cavity faces downward.
[0032] As can be seen from the above description, when the same set of locking structures is in the unlocked state, the corresponding second dielectric resonator can automatically slide out of the accommodating cavity under the action of gravity.
[0033] Furthermore, it also includes a support member disposed on the substrate, and the receiving member disposed on the support member.
[0034] As can be seen from the above description, by setting a support member to support the receiving member, it is ensured that the opening of the receiving cavity is not lower than the side of the first dielectric resonator away from the substrate, thereby ensuring that the second dielectric resonator can fall onto the first dielectric resonator after sliding out of the receiving cavity.
[0035] Furthermore, it also includes a limiting member disposed on the substrate and located on the side of the first dielectric resonator away from the receiving member.
[0036] As can be seen from the above description, by setting a limiting member to restrict the sliding position of the second dielectric resonator, the second dielectric resonator that slides out of the accommodating cavity is prevented from sliding out of the range above the first dielectric resonator, so that the second dielectric resonator can be stacked on the first dielectric resonator.
[0037] Furthermore, the accommodating cavity includes at least one sub-cavity, and the second dielectric resonators of the at least one are respectively disposed in the at least one sub-cavity.
[0038] As can be seen from the above description, each second dielectric resonator can be easily separated.
[0039] Furthermore, the substrate includes a stacked ground layer and a dielectric layer, with the dielectric resonator disposed on the ground layer; it also includes a feed line disposed on the side of the dielectric layer away from the ground layer; the ground layer has a feed gap, the first dielectric resonator covers the feed gap, and the feed line is coupled to the feed gap.
[0040] As described above, power is supplied through slot coupling.
[0041] Furthermore, the dimensions of the first dielectric resonator are 8mm × 8mm × 1.85mm.
[0042] As can be seen from the above description, by setting the first dielectric resonator, the dielectric resonator is ensured to have a certain height, thereby ensuring that the radiation mode can be excited.
[0043] The present invention also proposes an electronic device comprising a dielectric resonator antenna with adjustable beam deflection angle as described above.
[0044] Example 1
[0045] Please refer to Figure 1-5 Embodiment 1 of the present invention is: a dielectric resonator antenna with adjustable beam deflection angle, which can be applied to 4G / 5G base station systems, 5G millimeter wave terminals, etc.
[0046] First, such as Figure 2-3 As shown, Figure 2 This diagram illustrates the beam deflection angle of an antenna structure capable of generating tilted beams. The antenna structure includes a substrate and a dielectric resonator mounted on the substrate. The dielectric resonator is composed of a cuboid-shaped dielectric resonator and a right triangular prism-shaped dielectric resonator stacked together, where the base of the right triangular prism is a right-angled triangle. The antenna structure is fed using a slot-coupled feeding method. Specifically, the substrate includes stacked dielectric layers and a ground layer. A slot is provided on the ground layer, and the dielectric resonator covers this slot. A microstrip feed line is located on the side of the dielectric layer away from the ground layer, and the feed line is coupled to the slot. The dielectric constant of the dielectric resonator is DK = 10.
[0047] Figure 3 for Figure 2 The diagram shows the relationship between the height h and the beam deflection angle θ. It can be seen that the deflection angle changes linearly as h increases.
[0048] Based on this principle, this embodiment stores some of the dielectric resonators in a holder (accommodation component) and adjusts the height of the dielectric resonators by releasing different numbers of dielectric resonators, thereby realizing an antenna with adjustable beam deflection angle.
[0049] Specifically, such as Figure 1 and Figure 4 As shown, the antenna structure of this embodiment includes a substrate 1, a dielectric resonator 2, a feed line (not shown), a housing 3, a support 4, and a limiting member 5. The dielectric resonator 2 includes a first dielectric resonator 21 and at least one second dielectric resonator 22. The first dielectric resonator 21 is rectangular, and the second dielectric resonator 22 is a right triangular prism. Furthermore, the at least one second dielectric resonator 22, when stacked sequentially, forms a right triangular prism with a right-angled triangular base. In other words, the second dielectric resonator 22 can be considered as a smaller dielectric resonator segmented from a larger right triangular prism with a right-angled triangular base.
[0050] Substrate 1 includes a stacked ground layer and a dielectric layer. A feed gap is provided on the ground layer. The first dielectric resonator 21 is disposed on the ground layer and covers the feed gap. The feed wire is disposed on the side of the dielectric layer away from the ground layer and is coupled to the feed gap (the feed structure can be referred to). Figure 2 ).
[0051] The receiving member 3 is provided with a receiving cavity 31 with an opening. The opening of the receiving cavity 31 can be a two-way opening or a one-way opening. In this embodiment, a one-way opening is used as an example for explanation.
[0052] The receiving member 3 is disposed on the substrate 1 via the support member 4. The receiving member 3 is located on one side of the first dielectric resonator 21, and the opening of the receiving cavity 31 faces the first dielectric resonator 21. Each second dielectric resonator 22 is slidably disposed within the receiving cavity 31. When at least one second dielectric resonator 22 slides out of the receiving cavity 31 in sequence, they are stacked sequentially on the side of the first dielectric resonator 21 away from the substrate 1.
[0053] The limiting member 5 is disposed on the substrate 1 and located on the side of the first dielectric resonator 21 away from the receiving member 3. The limiting member 5 is used to limit the sliding position of the second dielectric resonator 22 and prevent the second dielectric resonator 22 that slides out of the receiving cavity 31 from sliding out of the range above the first dielectric resonator 21, so that the second dielectric resonator 22 can be stacked on the first dielectric resonator 21.
[0054] The height of the support member 4 can be determined according to the height of the first dielectric resonator 21, so that when the second dielectric resonator 22 slides out of the receiving cavity, it can land on the side of the first dielectric resonator 21 away from the substrate 1. The height of the limiting member 5 needs to be higher than the first dielectric resonator 21, so as to effectively prevent the second dielectric resonator 22 from sliding out of the area above the first dielectric resonator 21.
[0055] Furthermore, such as Figure 5 As shown, the accommodating cavity 31 includes at least one sub-cavity, and each second dielectric resonator 22 is respectively disposed in each sub-cavity.
[0056] Furthermore, such as Figure 1 and Figure 4-5 As shown, it also includes at least one set of locking structures 6, with each second dielectric resonator 22 corresponding to one of the locking structures 6. The locking structure 6 includes a socket 61 disposed on the second dielectric resonator 22, a through hole 62 disposed on the receiving member 3, and a plug 63. The through hole 62 on the receiving member 3 penetrates through the side wall of the receiving member 3, so that the through hole 62 can conduct through the receiving cavity 31 to the external space. The plug 63 is adapted to the socket 61 and the through hole 62. When the second dielectric resonator 22 is located in the receiving cavity 31, the socket 61 can be aligned with the through hole 62. After alignment, the plug 63 can be detachably inserted into the socket 61 through the through hole 62.
[0057] When the insertion rod 63 passes through the through hole 62 and is inserted into the insertion hole 61, the locking structure 6 is locked, allowing the corresponding second dielectric resonator 22 to be housed within the receiving cavity 31 and prevent it from sliding out. When the insertion rod 63 is pulled out, the locking structure 6 is unlocked. When all locking structures 6 in the same group are unlocked, the corresponding second dielectric resonator 22 can slide within and out of the receiving cavity 31.
[0058] Figure 1 In this case, all locking structures 6 are in the unlocked state, so each second dielectric resonator 22 slides out of the accommodating cavity 31 and is stacked on the first dielectric resonator 21 in sequence. Figure 4-5 In the middle, the bottommost locking structure 6 is in the unlocked state, while the other locking structures 6 are in the locked state. Therefore, only the bottommost second dielectric resonator 22 slides out of the accommodating cavity 31 and is stacked on the first dielectric resonator 21 in sequence, while the other second dielectric resonators 22 are still located in the accommodating cavity 31.
[0059] Furthermore, the accommodating member 3 is inclined and the opening of the accommodating cavity 31 faces downward, so that when the same set of locking structures 6 is in the unlocked state, the corresponding second dielectric resonator 22 can automatically slide out of the accommodating cavity 31 under the action of gravity.
[0060] In this embodiment, a locking structure includes two locking structures: through holes are provided on the two bottom surfaces of each second dielectric resonator, and through holes are provided on the two side walls of the receiving component. This more reliably confines the second dielectric resonator within the receiving cavity, preventing the second dielectric resonator from sliding out of the receiving cavity while the locking structure is unlocked. The insertion holes on the second dielectric resonator are micro-holes, very shallow, and will not affect the overall performance of the antenna.
[0061] When the beam deflection angle needs to be adjusted, the locking structure is unlocked sequentially from bottom to top (i.e., from the direction closest to the first dielectric resonator to the direction furthest from the first dielectric resonator) (i.e., the plug is pulled out), and the second dielectric resonators are stacked on top of the first dielectric resonators in turn. By controlling the number of second dielectric resonators that slide out of the accommodating cavity, the height of the dielectric resonators can be controlled, thereby adjusting the beam deflection angle.
[0062] Since a dielectric resonator requires a certain thickness to excite the radiation mode, a first dielectric resonator is necessary. In this embodiment, the dimensions of the first dielectric resonator are 8mm × 8mm × 1.85mm.
[0063] In this embodiment, the dielectric resonator is a ceramic dielectric resonator; the accommodating element is made of plastic with a dielectric constant of 2-3. The accommodating element does not participate in radiation and can be fabricated using 3D printing.
[0064] This embodiment enables the adjustment of the beam deflection angle, achieving passive beam scanning.
[0065] In summary, the present invention provides a dielectric resonator antenna and electronic device with adjustable beam deflection angle. By setting a first dielectric resonator, a certain height is ensured for the dielectric resonator to excite a radiation mode. By setting a locking structure, the receptive and detached states of the second dielectric resonator relative to the accommodating cavity can be effectively controlled. By tilting the opening of the accommodating cavity downward toward the first dielectric resonator, the corresponding second dielectric resonator can automatically slide out of the accommodating cavity under the action of gravity when the same set of locking structures is in the unlocked state. By setting a support member to support the accommodating member, the opening of the accommodating cavity is ensured to be no lower than the side of the first dielectric resonator away from the substrate, thereby ensuring that the second dielectric resonator can fall onto the first dielectric resonator after sliding out of the accommodating cavity. By setting a limiting member to restrict the sliding position of the second dielectric resonator, the second dielectric resonator that slides out of the accommodating cavity is prevented from sliding out of the range above the first dielectric resonator, so that the second dielectric resonator can be stacked on the first dielectric resonator.
[0066] This invention can adjust the beam deflection angle by controlling the number of second dielectric resonators that slide out of the accommodating cavity, thereby achieving passive beam scanning, improving the flexibility of beam deflection angle adjustment, and enhancing the versatility of tilted beam antennas.
[0067] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A dielectric resonator antenna with adjustable beam deflection angle, characterized in that, The device includes a substrate, a dielectric resonator, and a housing. The dielectric resonator includes a first dielectric resonator and at least one second dielectric resonator. The first dielectric resonator is in the shape of a cuboid, and the second dielectric resonator is in the shape of a right triangular prism. The at least one second dielectric resonator, when stacked in sequence, forms a right triangular prism with a right-angled triangle as its base. The housing has a housing cavity with an opening. The first dielectric resonator is disposed on the substrate; The accommodating member is located above the substrate and on one side of the first dielectric resonator, and the opening of the accommodating cavity faces the first dielectric resonator. Each second dielectric resonator is slidably disposed within the accommodating cavity; when the at least one second dielectric resonator slides out of the accommodating cavity in sequence, they are stacked sequentially on the side of the first dielectric resonator away from the substrate; The dielectric resonator is a ceramic dielectric resonator; the accommodating component is made of plastic. It also includes at least one set of locking structures, with each second dielectric resonator corresponding to each set of locking structures; the locking structures are disposed on the accommodating member and the corresponding second dielectric resonator; When any one of the locking structures in the same group is in a locked state, the second dielectric resonator corresponding to the same group of locking structures is housed in the accommodating cavity. When all locking structures in the same group are in the unlocked state, the second dielectric resonator corresponding to the same group of locking structures can slide within the accommodating cavity and can slide out of the accommodating cavity.
2. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, The locking structure includes a socket disposed on the second dielectric resonator, a through hole disposed on the receiving member, and a plug rod. The through hole connects the receiving cavity to the external space of the receiving member, and the plug rod is adapted to the socket and the through hole. When the second dielectric resonator is located within the accommodating cavity, the socket can be aligned with the through hole, and after alignment, the insertion rod can be detachably inserted into the socket through the through hole.
3. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1 or 2, characterized in that, The accommodating member is inclined, and the opening of the accommodating cavity faces downward.
4. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, It also includes a support member disposed on the substrate, and the receiving member disposed on the support member.
5. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, It also includes a limiting member disposed on the substrate and located on the side of the first dielectric resonator away from the receiving member.
6. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, The accommodating cavity includes at least one sub-cavity, and the second dielectric resonators of the at least one are respectively disposed in the at least one sub-cavity.
7. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, The substrate includes a stacked ground layer and a dielectric layer, and the dielectric resonator is disposed on the ground layer; it also includes a feed line, which is disposed on the side of the dielectric layer away from the ground layer; the ground layer is provided with a feed gap, the first dielectric resonator covers the feed gap, and the feed line is coupled to the feed gap.
8. The dielectric resonator antenna with adjustable beam deflection angle according to claim 1, characterized in that, The dimensions of the first dielectric resonator are 8mm × 8mm × 1.85mm.
9. An electronic device, characterized in that, Including the dielectric resonator antenna with adjustable beam deflection angle as described in any one of claims 1-8.