Broadband transparent oscillator
By designing a broadband transparent oscillator and adopting a structure of balun, oscillator plate, base plate and support column, combined with transparent film and plastic support column, the problem of insufficient concealment and aesthetics of directional base station antennas is solved. It achieves high light transmittance, lightweight and reduced electromagnetic interference in multi-frequency environments, and improves radiation performance and impedance matching.
Patent Information
- Application Number
- CN202520226270.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing directional base station antennas suffer from insufficient concealment and aesthetics due to their metal vibrators and opaque covers, and are also large in size and weight, making it difficult to meet the requirements of green environmental protection and beautification.
A broadband transparent oscillator is designed, which adopts a structure of balun, oscillator plate, base plate and support column. Combined with transparent film and plastic support column, it achieves high light transmittance and miniaturization. Electromagnetic interference is reduced by parasitic unit plate and coupling layer, and impedance matching and directivity are improved.
It achieves high light transmittance and high concealment, is suitable for multi-frequency environments, reduces electromagnetic interference, is lightweight and aesthetically pleasing, and has good radiation performance and impedance matching.
Smart Images

Figure CN223858433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of communication technology, specifically to a broadband transparent oscillator. Background Technology
[0002] With the development of the communications industry and the improvement of people's living standards, coupled with increased awareness of environmental protection, the demand for aesthetically pleasing and concealed antennas is gradually rising. Aesthetically pleasing and concealed antenna technologies can reduce people's fear of electromagnetic radiation while blending harmoniously with the surrounding environment. Transparent antenna technology not only possesses unique transparency but also provides wireless communication functionality without compromising aesthetics. Compared to traditional antennas, transparent antennas are more concealed and aesthetically pleasing. Existing directional base station antennas typically contain a metal or PCB vibrator internally, using a metal reflector and an opaque outer casing such as PVC or fiberglass, which is not sufficiently concealed and is also relatively large and heavy. Therefore, we propose a broadband transparent vibrator. Utility Model Content
[0003] The purpose of this invention is to provide a broadband transparent oscillator to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A broadband transparent oscillator includes a balun, oscillator plates, a base plate, and support columns. The balun is located at the top center of the base plate. Two sets of oscillator plates are arranged in a cross shape on the top of the balun. Support columns are provided at both ends of the top of the two sets of oscillator plates. Parasitic unit plates are installed on the top of the two sets of oscillator plates through the support columns. Coupling ground layers are provided on both sides of the top center of the oscillator plates. Radiation surfaces are provided on both sides of the bottom of the oscillator plates.
[0006] Furthermore: The balun includes balun one and balun two, which are arranged in a cross shape at the top center of the base plate. The included angle between the balun and the base plate and the vibrator plate is set to 90 degrees.
[0007] Furthermore, both the top and bottom of the first and second baluns are equipped with locking blocks, and the top center of the base plate and the center of the two sets of oscillators are equipped with locking slots that match the locking blocks.
[0008] Furthermore, the parasitic unit plates are all single-sided transparent film structures, and they are located above the oscillator plates.
[0009] Furthermore: the base plate is set as a square base plate, and the base plate is made of PC material or acrylic material.
[0010] Furthermore: all support columns are made of plastic, and the top and bottom of the plastic support columns are provided with connection holes. The vibrator plates and parasitic unit plates are provided with fixing holes that match the connection holes at the corresponding positions of the support columns.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This broadband transparent oscillator, as described in this utility model, has high light transmittance. When combined with a transparent radome, it can make the entire base station antenna highly transparent, highly concealed, and has a decoupling effect. It is suitable for multi-frequency environments and miniaturization requirements. It has good light transmittance, is aesthetically pleasing, decoupled, suitable for multi-frequency environments, and lightweight. The oscillator can achieve good radiation performance and impedance matching in an ultra-wideband range of 690-960MHz. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a top view of the oscillator element structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the bottom structure of the vibrator plate of this utility model.
[0016] In the diagram: 1. Base plate; 2. Balun; 3. Vibrator plate; 4. Support column; 5. Parasitic unit plate; 6. Coupled stratum; 7. Radiation surface. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1:
[0019] Please see Figure 1-3This utility model provides a technical solution: a broadband transparent oscillator, including a balun 2, oscillator plates 3, a base plate 1, and a support column 4. The balun 2 is disposed at the top center of the base plate 1. Two sets of oscillator plates 3 are disposed on the top of the balun 2 in a cross shape. The two sets of oscillator plates 3 are oscillator plate one and oscillator plate two, respectively. Both oscillator plate one and oscillator plate two are provided with a transparent antenna film. The transparent antenna film is made of low sheet resistance PET material, and a metal layer is adhered to the film. The metal layer is made of metal. The mesh (metal grid) method offers performance comparable to traditional copper foil or metal surfaces, while effectively reducing light shading and increasing the overall light transmittance of the oscillator to over 80%. Support columns 4 are installed at both ends of the top of each of the two sets of oscillator plates 3. Parasitic unit plates 5 are mounted on the top of each set of oscillator plates 3 via the support columns 4. These parasitic unit plates 5 are fixed to the top of the oscillator plates 3 by the radiative excitation of the oscillator plates 3, resulting in electromagnetic coupling that enhances the directionality of the oscillator radiation and improves impedance matching and bandwidth. Coupling ground layers 6 are located on both sides of the top center of each oscillator plate 3. Radiation surfaces 7 are provided on both sides of the bottom of plate 3. The coupling ground layer 6 on the first and second plates is welded to the balun ground layer to achieve electrical connection. The radiation surface 7 overlaps with the coupling ground layer 6 in a certain area. Through the coupling grounding in this area, the interference current between multiple frequencies can be effectively reduced. The radiation surface 7 is provided with decoupling resonant slots. The slots are I-shaped, which is equivalent to the shape of a symmetrical oscillator. They can cancel the mutual coupling effect of other frequency band oscillators on this transparent oscillator. By changing the number, spacing and length of the resonant slots, the frequency band that needs to be decoupled can be flexibly changed, thereby reducing electromagnetic interference between multiple frequencies in multi-frequency environments, especially when arranged with the same aperture.
[0020] Preferably, the balun 2 includes balun one and balun two, which are arranged in a cross shape at the top center of the base plate 1. Balun one and the vibrator piece form a set of vibrators, and balun two and the vibrator piece form another set of vibrators. The two sets of vibrators are orthogonal and cross-combined into one. The included angle between balun 2 and the base plate 1 and the vibrator piece 3 is set to 90 degrees. Balun one and balun two are both equipped with transparent antenna films on both sides, one side is a ground layer and the other side is a feed line layer. The feed line layer is equipped with pads and is soldered to the transmission line of the base plate 1. The balun feed line layer provides balanced power to the vibrator piece 3 through coupling.
[0021] Preferably, both the top and bottom of the first and second baluns are provided with locking blocks, and the top center of the base plate 1 and the center of the two sets of vibrating plates 3 are provided with locking slots that match the locking blocks. This arrangement facilitates the connection and fixation of the balun 2 with the base plate 1 and the vibrating plates 3 through the cooperation of the locking blocks and the locking slots.
[0022] Preferably, the parasitic unit plates 5 are all single-sided transparent film structures, and they are located above the oscillator plate 3.
[0023] Example 2:
[0024] Reference Figure 1-3 This embodiment differs from the first embodiment in that: the base plate 1 is set as a square base plate, and the base plate 1 is made of PC material or acrylic material. The above materials have high light transmittance and are lightweight; the support columns 4 are all set as plastic support columns, and the top and bottom of the plastic support columns are provided with connection holes. The vibrator plate 3 and the parasitic unit plate 5 are provided with fixing holes that match the connection holes at the corresponding positions of the support columns 4. This arrangement makes it convenient to install and fix the parasitic unit plate 5 on the top of the vibrator plate 3 through the support columns 4.
[0025] All electrical appliances mentioned in this article are connected to an external power source via wires.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A broadband transparent transducer comprising a balun (2), a transducer sheet (3), a base plate (1) and support columns (4), characterized in that: The top center of the bottom plate (1) is provided with a balun (2), the top of the balun (2) is provided with two groups of vibrator sheets (3) in cross shape, the top two ends of the two groups of vibrator sheets (3) are provided with support columns (4), the top of the two groups of vibrator sheets (3) is provided with a parasitic unit plate (5) through the support column (4), the two sides of the top center of the vibrator sheet (3) are provided with a coupled ground layer (6), and the two sides of the bottom of the vibrator sheet (3) are provided with a radiation surface (7).
2. A broadband transparent transducer according to claim 1, characterized in that: The balun (2) comprises a balun one and a balun two, the balun one and the balun two are arranged in cross shape at the top center of the bottom plate (1), and the included angle between the balun (2) and the bottom plate (1) and the vibrator sheet (3) is 90 degrees.
3. A broadband transparent transducer according to claim 2, wherein: The top and bottom of the balun one and the balun two are provided with clamping blocks, and the top center of the bottom plate (1) and the center of the two groups of vibrator sheets (3) are provided with clamping grooves matched with the clamping blocks.
4. The broadband transparent transducer of claim 1, wherein: The parasitic unit plate (5) is a single-sided transparent film structure, and it is located above the vibrator sheet (3).
5. The broadband transparent transducer of claim 1, wherein: The bottom plate (1) is a square bottom plate, and the bottom plate (1) is a PC material plate or an acrylic material plate.
6. A broadband transparent transducer as claimed in claim 1, wherein: The support column (4) is a plastic support column, the top and bottom of the plastic support column are provided with connecting holes, and the positions of the vibrator sheet (3) and the parasitic unit plate (5) corresponding to the support column (4) are provided with fixing holes matched with the connecting holes.