Panel antenna
By designing a planar antenna with a horn antenna element and a double-layer feed network, the problem of poor gain in the existing technology was solved, and high gain and excellent frequency coverage performance were achieved.
Patent Information
- Application Number
- CN202423296966.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing flat panel antennas have poor gain performance.
A planar antenna comprising a horn antenna element, an antenna carrier plate, and a dual-layer feed network was designed. The horn antenna element is mounted on the antenna carrier plate in the form of a dual-polarized 16*16 horn array. It adopts a dual-layer feed form with a total of 256 feed networks, covering the frequency range of 10.7GHz to 14.5GHz. The polarization mode is linear polarization, and the gain effect is optimized.
The antenna gain was improved, reaching 35.2 dBi at 14.5 GHz, with a VSWR of less than 2.0, cross-polarization strength greater than 35 dB, and transmit/receive isolation greater than 35 dB.
Smart Images
Figure CN223651650U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of communication technology, and specifically relates to a flat panel antenna. Background Technology
[0002] With the advancement and development of technology, in addition to large antennas used for base stations or satellite broadcasting, various civilian antennas have become increasingly widespread, especially flat panel antennas, which are being used in a wider range of fields, such as smart home appliances and microwave sensors used in industrial automation. The inventors discovered during practical use that these existing antenna technologies have poor gain performance. Utility Model Content
[0003] This invention aims to overcome the shortcomings of the aforementioned technologies and proposes a planar antenna to improve the antenna gain effect, addressing the problem of insufficient antenna gain in existing technologies.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A planar antenna includes a horn antenna element, an antenna carrier plate, and a feed network; the horn antenna element is distributed on the antenna carrier plate, and the feed network is mounted in the antenna carrier plate.
[0006] Preferably, the horn antenna element has a length of 25mm, a width of 25mm, and a thickness of 30mm.
[0007] Preferably, the antenna carrier has a length of 430mm, a width of 400mm, and a thickness of 35mm.
[0008] Preferably, the horn antenna element is mounted on the antenna carrier in the form of a dual-polarized 16*16 horn array.
[0009] Preferably, the feeding network adopts a double-layer feeding form, with two sets of a total of 256 feeding networks, corresponding to the antenna's receiving polarization, transmitting polarization, receiving frequency, and transmitting frequency, respectively.
[0010] Preferably, the horn antenna unit has a receiving range of 10.7 GHz to 12.75 GHz and a transmitting range of 13.75 GHz to 14.5 GHz.
[0011] Preferably, the polarization mode of the horn antenna element is linear polarization.
[0012] Preferably, the cross-polarization intensity of the horn antenna element is greater than or equal to 35dB.
[0013] Ideally, the VSWR of the horn antenna element is less than or equal to 2.0.
[0014] Ideally, the input impedance of the horn antenna element is 50Ω.
[0015] Ideally, the gain of the horn antenna element is greater than or equal to 35.5 dBi at the receiver and greater than or equal to 36.5 dBi at the transmitter.
[0016] Preferably, the equivalent aperture of the horn antenna element is 0.6m.
[0017] Ideally, the transmit / receive isolation of the horn antenna element should be greater than or equal to 35dB.
[0018] Ideally, the horn antenna unit operates at a temperature of -55℃ to +70℃.
[0019] Preferably, the storage temperature of the horn antenna element is -55℃ to +85℃.
[0020] Ideally, the weight of the horn antenna unit should be less than or equal to 5 kg.
[0021] Compared with the prior art, the technical solution of this utility model has the following advantages / benefits:
[0022] 1. By setting up a dual-layer feed network, the antenna gain was improved, reaching 35.2 dBi at a frequency of 14.5 GHz. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of a flat panel antenna according to this utility model.
[0025] Figure 2 This is a schematic diagram of the power supply network of this utility model.
[0026] Figure 3 This is a simulation diagram of the standing wave ratio (VSWR) of the receiving frequency band of this utility model.
[0027] Figure 4 This is a simulation diagram of the VSWR of the transmitting frequency band of this utility model.
[0028] Figure 5 This is a simulation diagram of the receiving isolation of the receiving frequency band of this utility model.
[0029] Figure 6 This is a simulation diagram of the transmission isolation of the transmission frequency band of this utility model.
[0030] Figure 7 This is a simulation diagram of the gain of this utility model at an operating frequency of 14.5GHz. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the detailed description of the embodiments of this utility model provided below is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model.
[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
[0033] Example 1:
[0034] like Figure 1 As shown, a planar antenna is provided, including a horn antenna element, an antenna carrier plate, and a feeding network; the horn antenna element is distributed on the antenna carrier plate, and the feeding network is mounted in the antenna carrier plate.
[0035] The horn antenna element is 25mm long, 25mm wide, and 30mm thick.
[0036] The antenna carrier is 430mm long, 400mm wide, and 35mm thick.
[0037] The horn antenna unit is mounted on the antenna carrier in the form of a dual-polarized 16*16 horn array.
[0038] like Figure 2 As shown, the feeding network adopts a double-layer feeding form, with two sets of feeding networks, corresponding to the antenna's receiving polarization, transmitting polarization, receiving frequency, and transmitting frequency, respectively.
[0039] The horn antenna unit has a receiving range of 10.7GHz to 12.75GHz and a transmitting range of 13.75GHz to 14.5GHz.
[0040] The horn antenna element is linearly polarized.
[0041] The cross-polarization intensity of the horn antenna element is greater than or equal to 35dB.
[0042] The VSWR of the horn antenna element is less than or equal to 2.0.
[0043] The input impedance of the horn antenna unit is 50Ω.
[0044] The antenna gain is greater than or equal to 35.5 dBi at the receiver and greater than or equal to 36.5 dBi at the transmitter.
[0045] The equivalent aperture of the horn antenna element is 0.6m.
[0046] The transmit / receive isolation of the horn antenna element is greater than or equal to 35dB.
[0047] The operating temperature of the horn antenna unit is -55℃ to +70℃.
[0048] The storage temperature of the horn antenna element is -55℃ to +85℃.
[0049] The antenna weighs less than or equal to 5 kg.
[0050] Example 2: Based on the above examples, this example further limits the antenna's receiving range to 10.7 GHz and its transmitting range to 13.75 GHz.
[0051] The antenna is linearly polarized.
[0052] The antenna's cross-polarization intensity is 40 dB.
[0053] The antenna's VSWR is 2.0.
[0054] The antenna's input impedance is 50Ω.
[0055] The antenna gain is greater than or equal to 35.5 dBi at the receiver and greater than or equal to 36.5 dBi at the transmitter.
[0056] The antenna's equivalent aperture is 0.6m.
[0057] The antenna's transmit / receive isolation is greater than or equal to 35dB.
[0058] The antenna operates at a temperature of -55℃.
[0059] The antenna is stored at a temperature of -55°C.
[0060] The antenna weighs less than or equal to 5 kg.
[0061] Since full array simulation requires a lot of computing resources and time, the simulation results are obtained by using 2*2 elements with periodic boundaries.
[0062] The antenna gain pattern is verified using a radiation pattern tool, and then the network insertion loss is calculated to obtain the final antenna performance.
[0063] like Figure 3As shown, the horizontal axis represents the operating frequency in GHz, and the vertical axis represents the standing wave ratio (VSWR). The simulated VSWR result for the antenna in the receiving band is 1.27. Figure 4 The horizontal axis represents the operating frequency in GHz, and the vertical axis represents the standing wave ratio (SWR). The SWR in the transmission frequency band is 1.5, and the dual-polarization voltage SWR is ≤1.6 across the entire frequency band.
[0064] Example 3: Based on the above examples, this example further limits the antenna's receiving range to 10.7 GHz and its transmitting range to 14.5 GHz.
[0065] The antenna is linearly polarized.
[0066] The antenna's cross-polarization intensity is 35 dB.
[0067] The antenna's VSWR is 2.0.
[0068] The antenna's input impedance is 50Ω.
[0069] The antenna gain is 35.5 dBi at the receiver and 36.5 dBi at the transmitter.
[0070] The antenna's equivalent aperture is 0.6m.
[0071] The antenna's transmit / receive isolation is greater than or equal to 35dB.
[0072] The antenna operates at a temperature of 70℃.
[0073] The antenna is stored at a temperature of 85°C.
[0074] The antenna weighs 5 kg.
[0075] Since full array simulation requires a lot of computational resources and time, the simulation results are obtained by using 2*2 elements with periodic boundaries. The full array gain pattern is verified using a radiation pattern tool, and then the network insertion loss is calculated to obtain the final antenna performance.
[0076] like Figure 5 , Figure 6 As shown, the horizontal axis represents the operating frequency in GHz, and the vertical axis represents the isolation. The antenna's receive-transmit isolation and transmit-receive isolation are both greater than or equal to 50 dB.
[0077] Example 4: The antenna's receiving range is 10.7GHz to 12.75GHz; the transmitting range is 13.75GHz to 14.5GHz.
[0078] The antenna is linearly polarized.
[0079] The antenna's cross-polarization intensity is greater than or equal to 35 dB.
[0080] The antenna's VSWR is 1.9.
[0081] The antenna's input impedance is 50Ω.
[0082] The antenna gain is 35.5 dBi at the receiver and 36.5 dBi at the transmitter.
[0083] The antenna's equivalent aperture is 0.6m.
[0084] The transmit / receive isolation of the antenna is 35dB.
[0085] The antenna operates at temperatures ranging from -55℃ to +70℃.
[0086] The antenna can be stored at temperatures ranging from -55°C to +85°C.
[0087] The antenna weighs 5 kg.
[0088] Since full array simulation requires a lot of computing resources and time, the simulation results are obtained by using 2*2 elements with periodic boundaries.
[0089] The antenna gain pattern is verified using a radiation pattern tool, and then the network insertion loss is calculated to obtain the final antenna performance.
[0090] like Figure 7 As shown, Figure 7 This is a simulation experiment diagram of this embodiment. The horizontal axis represents the operating frequency in GHz, and the vertical axis represents the gain in dBi. It can be clearly seen from the diagram that the antenna of this embodiment can achieve a gain of 3502 dBi at a frequency of 14.5 GHz.
[0091] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0092] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A flat panel antenna, characterized in that, It includes a horn antenna element, an antenna carrier plate, and a feed network; the horn antenna element is distributed on the antenna carrier plate, and the feed network is mounted in the antenna carrier plate; The power supply network adopts a dual-layer power supply form, with two sets totaling 256 power supply networks, corresponding to the antenna's receiving polarization, transmitting polarization, receiving frequency, and transmitting frequency, respectively.
2. A planar antenna according to claim 1, characterized in that, The horn antenna element is 25mm long, 25mm wide, and 30mm thick.
3. A planar antenna according to claim 1, characterized in that, The antenna carrier plate is 430mm long, 400mm wide, and 35mm thick.
4. A planar antenna according to claim 1, characterized in that, The horn antenna unit is mounted on the antenna carrier in a 16*16 horn array configuration.
5. A planar antenna according to claim 1, characterized in that, The receiving range of the horn antenna unit is 10.7GHz to 12.75GHz; the transmitting range is 13.75GHz to 14.5GHz; the gain of the horn antenna unit is greater than or equal to 35.5dBi at the receiving end and greater than or equal to 36.5dBi at the transmitting end.
6. A planar antenna according to claim 1, characterized in that, The horn antenna element is linearly polarized; the horn antenna element has a receiving frequency band and a transmitting frequency band.
7. A planar antenna according to claim 1, characterized in that, The cross-polarization intensity of the horn antenna element is greater than or equal to 35dB.
8. A planar antenna according to claim 1, characterized in that, The VSWR of the horn antenna element is less than or equal to 2.
0.
9. A planar antenna according to claim 1, characterized in that, The input impedance of the horn antenna unit is 50Ω.