CN206040983U - Antenna and inhale ripples ware thereof - Google Patents
Antenna and inhale ripples ware thereof Download PDFInfo
- Publication number
- CN206040983U CN206040983U CN201621110199.4U CN201621110199U CN206040983U CN 206040983 U CN206040983 U CN 206040983U CN 201621110199 U CN201621110199 U CN 201621110199U CN 206040983 U CN206040983 U CN 206040983U
- Authority
- CN
- China
- Prior art keywords
- absorbing device
- wave absorbing
- antenna
- cellular construction
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The utility model is suitable for a communications field provides an antenna and inhale ripples ware thereof. Inhaling the ripples ware and including the PCB base plate, attach to the positive super material layer of PCB base plate and attach to the metal flat layer of PCB base plate bottom surface, super material layer has a plurality of periodic modular constructions, and every modular construction is formed with the fretwork pattern, and the fretwork pattern forms fretwork patterning equivalent inductance by the metal wire loading of perception. The utility model discloses an inhale the bandwidth widen that the ripples ware made the antenna, and reduced a large amount of electromagnetic reflecting, showing the isolation that improves day space, and improved the equivalent inductance of modular construction, miniaturized whole modular construction to the miniaturized whole ripples ware of inhaling makes the cycle and the modular construction of the most volumes that can hold at the same area downlap material layer, makes the absorption rate of inhaling the ripples ware better.
Description
Technical field
This utility model belongs to the communications field, more particularly to a kind of antenna and its wave absorbing device.
Background technology
Prior art is used for the antenna of wireless router includes irradiator, reflector, director and isolation element etc..Wherein
Isolation element mainly includes isolating bar, shaping piece etc., and isolation element usually resonance is formed in space in 1/2nd wavelength
The effect of band elimination filter, stops that electromagnetic wave passes through.But the bandwidth of the antenna including the isolation element of isolating bar, shaping piece etc.
It is narrower, easily deteriorate other performances of antenna, the cross polarization discrimination of such as antenna, return loss etc., and the isolation for improving
The space of degree is also limited.
Utility model content
The purpose of this utility model is to provide a kind of antenna and its wave absorbing device, it is intended to which solution includes isolating bar, shaping piece
Deng isolation element antenna narrower bandwidth, easily deteriorate other performances of antenna, and the space of the isolation for improving also have
The problem of limit.
In a first aspect, this utility model provides a kind of wave absorbing device of antenna, the wave absorbing device includes PCB substrate, attachment
In the positive metamaterial layer of PCB substrate and the metal plate layer for being attached to PCB substrate bottom surface, metamaterial layer has multiple periodicity
Cellular construction, each cellular construction is formed with pierced pattern, and pierced pattern is to load what is formed by the metal wire of perception, hollow out
Pattern forms equivalent inductance.
Further, the cellular construction is metal patch.
Further, the pierced pattern that each cellular construction is formed is centrally located.
Further, the cellular construction is square, each edge of cellular construction and the adjacent edge of neighboring unit structure it
Between form equivalent capacity, equivalent capacity is in parallel with equivalent inductance, each edge of each cellular construction and the phase of neighboring unit structure
Resistance is welded between adjacent side, so as to resistance is in parallel with equivalent capacity and equivalent inductance.
Further, electric capacity is welded between each edge of each cellular construction and the adjacent edge of neighboring unit structure, from
And will be resistance and electric capacity in parallel.
Further, each edge of each cellular construction is respectively provided with a paster projection for supplying welding kesistance.
Further, the central authorities of each cellular construction have square opening, and pierced pattern is formed at the periphery of square opening, hollow out
The periphery of pattern is ground, forms equivalent capacity between pierced pattern and ground, and equivalent capacity is in parallel with equivalent inductance.
Further, resistance is welded between the pierced pattern and ground of each edge of each cellular construction, so as to by resistance
It is in parallel with equivalent capacity and equivalent inductance.
Further, electric capacity is welded between the pierced pattern and ground of each edge of each cellular construction, so as to by resistance
It is in parallel with electric capacity.
Second aspect, this utility model provide a kind of antenna, and the antenna includes the wave absorbing device of above-mentioned antenna.
The wave absorbing device of the antenna that this utility model is provided, due to including being attached to the positive metamaterial layer of PCB substrate and attached
The metal plate layer in PCB substrate bottom surface, therefore makes the bandwidth of antenna broaden, and reduce substantial amounts of ELECTROMAGNETIC REFLECTION, significantly
Isolation between antennae is improved, antenna others performance is not had any impact, is applied to multiple antennas and is constituted MIMO
In system, isolation between antennas can be improved, improve system message capacity, increase the capacity of resisting disturbance of system.Again due to Meta Materials
Layer has multiple periodic cellular constructions, and each cellular construction is formed with pierced pattern, and pierced pattern is by the metal of perception
Line loads what is formed, pierced pattern formation equivalent inductance, therefore improves the equivalent inductance of cellular construction, the whole unit of miniaturization
Structure, so as to the whole wave absorbing device of miniaturization so that metamaterial layer can be accommodated under identical area greater number of cycle and
Cellular construction, allow wave absorbing device absorbance more preferably.Again due to cellular construction each edge and neighboring unit structure adjacent edge it
Between be welded with resistance, or, be welded with resistance between the pierced pattern and ground of each edge of each cellular construction, therefore can match
Air impedance, while the electromagnetic wave energy reflected by bottom-side metal flat layer is absorbed, so as to play a part of to reduce reflection.Separately
Outward, due to being welded with electric capacity between each edge of cellular construction and the adjacent edge of neighboring unit structure, or, each cellular construction
Each edge pierced pattern and ground between be welded with electric capacity, it is so as to will be resistance and electric capacity in parallel, whole with further miniaturization
Wave absorbing device.
Description of the drawings
Fig. 1 is that the front of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment one is provided is illustrated
Figure.
Fig. 2 is that the side of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment one is provided is illustrated
Figure.
Fig. 3 is that the bottom surface of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment one is provided is illustrated
Figure.
Fig. 4 is that the performance of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment one is provided is illustrated
Figure.
Fig. 5 is operate on whetheing there is using working in that this utility model embodiment one is provided between the antenna of 2.4GHz frequency ranges
The isolation contrast schematic diagram of the wave absorbing device of the antenna of 2.4GHz frequency ranges.
Fig. 6 is that the front of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment two is provided is illustrated
Figure.
Fig. 7 is that the front of the wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided is illustrated
Figure.
Fig. 8 is that the side of the wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided is illustrated
Figure.
Fig. 9 is that the bottom surface of the wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided is illustrated
Figure.
Figure 10 is that the performance of the wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided is shown
It is intended to.
Figure 11 is operate on whetheing there is using working in that this utility model embodiment three is provided between the antenna of 5.8GHz frequency ranges
The isolation contrast schematic diagram of the wave absorbing device of the antenna of 5.8GHz frequency ranges.
Figure 12 is the equivalent circuit diagram of the wave absorbing device of the antenna that this utility model embodiment one, two, three is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and beneficial effect become more apparent, below in conjunction with accompanying drawing and
Embodiment, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein only to
This utility model is explained, is not used to limit this utility model.
In order to illustrate technical scheme described in the utility model, illustrate below by specific embodiment.
The Main Function of the wave absorbing device of the antenna that this utility model embodiment is provided is by the energy of irradiator radiation direction both sides
Amount absorbs and reflects, and so as to reduce the coupling between adjacent antenna, improves isolation between antennas.
This utility model provides a kind of wave absorbing device of antenna, and the wave absorbing device includes PCB substrate, is attached to PCB substrate
Positive metamaterial layer and the metal plate layer for being attached to PCB substrate bottom surface, metamaterial layer have multiple periodic units knots
Structure, each cellular construction are formed with pierced pattern, and pierced pattern is to load what is formed by the metal wire of perception, and pierced pattern is formed
Equivalent inductance.
Embodiment one：
Refer to Fig. 1 to Fig. 3, the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment one is provided
Including PCB substrate 11, it is attached to 11 positive metamaterial layer 12 of PCB substrate and is attached to the metal plate of 11 bottom surface of PCB substrate
Layer 13.
In this utility model embodiment one, metamaterial layer 12 refers to the structure with engineer and presents natural material
The composite layer of the not available extraordinary physical property of material, metamaterial layer 12 can be soft and hard surfaces (soft and hard
Surfaces) layer, photonic crystal (photonic crystals) layer, electromagnetic bandgap structure (electromagnetic band-
Gap structures) layer, double negative material (double negativematerials) layers, LHM (left-handed
Materials) layer, artificial magnetic conductor (artificial magnetic conductors, AMC) layer etc..AMC layers are a kind of people
The equivalent preferable magnetic surface layer that work makes.
Metamaterial layer 12 has multiple periodic cellular constructions 121, and the cellular construction 121 shown in Fig. 1 is metal patch.
As shown in figure 1, the metamaterial layer 12 of the wave absorbing device of the antenna for working in 2.4GHz frequency ranges of the offer of this utility model embodiment one
With 9 periodic cellular constructions 121.
Each cellular construction 121 is formed with pierced pattern 1211, and pierced pattern 1211 is by the metal wire loading shape of perception
Into, pierced pattern 1211 forms equivalent inductance.The effect of pierced pattern 1211 is the equivalent electric for improving cellular construction 121
Sense, the whole cellular construction of miniaturization, so as to the whole wave absorbing device of miniaturization so that under identical area, metamaterial layer can be accommodated
Greater number of cycle and cellular construction, allow wave absorbing device absorbance more preferably.Fig. 1 is referred to, cellular construction 121 is square, often
The pierced pattern 1211 that individual cellular construction 121 is formed is centrally located, the outline of pierced pattern 1211 can be it is square, circular,
The arbitrary shapes such as sector.Pierced pattern can be with using various patterns, such as folding line pattern, camber line pattern, triangular pattern etc.
Deng.Equivalent capacity C, 1211 shape of pierced pattern is formed between each edge of cellular construction 121 and the adjacent edge of neighboring unit structure
Into equivalent inductance L, equivalent capacity C is in parallel with equivalent inductance L.The each edge of each cellular construction 121 and neighboring unit structure
(such as a, b, c, the d in Fig. 1) welding kesistance R between adjacent edge, so as to resistance R is in parallel with equivalent capacity C and equivalent inductance L,
As shown in figure 12.The effect of resistance R is matching air impedance, while absorbing the electromagnetic wave reflected by bottom-side metal flat layer 13
Energy, and reduce the effect of reflection.In this utility model embodiment one, resistance used can be 230 ohm of resistance.
In this utility model embodiment one, can be with each edge in each cellular construction 121 and neighboring unit structure
Adjacent edge between (beside a, b, c, the d in Fig. 1) welding electric capacity, so as to will be resistance and electric capacity in parallel, with further small-sized
Change whole wave absorbing device.
Fig. 6 is referred to, is the wave absorbing device of the antenna for working in 2.4GHz frequency ranges that this utility model embodiment two is provided
Front schematic view.The pierced pattern 2211 that each cellular construction 221 shown in Fig. 6 is formed is different from the pierced pattern shown in Fig. 1
Pattern, the central authorities of each cellular construction 221 have square opening 2212, and pierced pattern 2211 is formed at the outer of square opening 2212
Enclose, the periphery of pierced pattern 2211 is ground 2213.Pierced pattern 2211 equivalent to inner wire, pierced pattern 2211 and ground 2213 it
Between form equivalent capacity C, pierced pattern 2211 forms equivalent inductance L, and equivalent capacity C is in parallel with equivalent inductance L.Each unit is tied
(such as a, b, c, the d in Fig. 6) welding kesistance R between the pierced pattern and ground of each edge of structure 221, so as to by resistance R with it is equivalent
Electric capacity C and equivalent inductance L are in parallel.As shown in figure 12.
In this utility model embodiment two, can be with the pierced pattern of each edge in each cellular construction 221 and ground
Between (beside a, b, c, the d in Fig. 6) welding electric capacity, so as to will be resistance and electric capacity in parallel, be entirely inhaled with further miniaturization
Ripple device.
Metal plate layer 13 for reflection of electromagnetic wave at metal plate layer 13 will be reached to resistance and PCB substrate 11, and
Absorbed by resistance and PCB substrate 11.
In this utility model embodiment one, two, the metamaterial layer of the wave absorbing device of the antenna of 2.4GHz frequency ranges is worked in
Size is L=49.5mm, W=49.5mm, H=3.2mm, cycle T=16.5mm.
Fig. 4 and Fig. 5 is referred to, wherein Fig. 4 is the day for working in 2.4GHz frequency ranges that this utility model embodiment one is provided
The performance schematic diagram of the wave absorbing device of line, Fig. 5 are operate on whetheing there is using this utility model embodiment between the antenna of 2.4GHz frequency ranges
The isolation contrast schematic diagram of the wave absorbing device of one antenna for working in 2.4GHz frequency ranges for providing.Understood according to contrast, worked in
The suction ripple of the antenna for working in 2.4GHz frequency ranges provided using this utility model embodiment one is provided between the antenna of 2.4GHz frequency ranges
The isolation that the isolation ratio of device is not adopted is higher by and is close to 10dB.
The PCB substrate of this utility model embodiment one, two can be FR4PCB substrates.FR4PCB substrates are that one kind is current most
Cheap PCB substrate, when metamaterial layer is made on FR4PCB substrates, price is extremely low, and as metamaterial layer possesses ultra-thin
The characteristic of thickness so that the wave absorbing device of the antenna that this utility model embodiment one, two is provided is highly suitable to be applied for consumer electricity
Sub- product.
For the pierced pattern of cellular construction is same pattern, as long as the size of metamaterial layer is different, then
The wave absorbing device of antenna can be made to be operated in different frequency ranges.
Embodiment three：
Refer to Fig. 7 to Fig. 9, the wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided
Including PCB substrate 31, it is attached to 31 positive metamaterial layer 32 of PCB substrate and is attached to the metal plate of 31 bottom surface of PCB substrate
Layer 33.Metamaterial layer 32 has periodic cellular construction 321.
The wave absorbing device of the antenna for working in 5.8GHz frequency ranges that this utility model embodiment three is provided and this utility model reality
The wave absorbing device for applying the antenna that works in 2.4GHz frequency ranges of the offer of example one is differred primarily in that：
Between each edge of cellular construction 321 and the adjacent edge of neighboring unit structure, (such as a, b, c, the d in Fig. 7) is welded
Resistance can be 300 ohm of resistance.
In this utility model embodiment three, each edge of each cellular construction 321 is respectively provided with a paster projection 3211, convenient
Welding kesistance.
The size for working in the metamaterial layer 32 of the wave absorbing device of the antenna of 5.8GHz frequency ranges is L=37.8mm, W=
29.2mm, H=1.6mm, cycle T=9.3mm.
Figure 10 and 11 is referred to, wherein Figure 10 is the day for working in 5.8GHz frequency ranges that this utility model embodiment three is provided
The performance schematic diagram of the wave absorbing device of line.Figure 11 is operate on whetheing there is using this utility model embodiment between the antenna of 5.8GHz frequency ranges
The isolation contrast schematic diagram of the wave absorbing device of three antennas for working in 5.8GHz frequency ranges for providing.Understood according to contrast, worked in
The suction ripple of the antenna for working in 5.8GHz frequency ranges provided using this utility model embodiment three is provided between the antenna of 5.8GHz frequency ranges
The isolation that the isolation ratio of device is not adopted is higher by 5-10dB.
This utility model embodiment additionally provides a kind of antenna including described in this utility model embodiment one, two or three
The antenna of wave absorbing device.
The wave absorbing device of the antenna that this utility model is provided, due to including being attached to the positive metamaterial layer of PCB substrate and attached
The metal plate layer in PCB substrate bottom surface, therefore makes the bandwidth of antenna broaden, and reduce substantial amounts of ELECTROMAGNETIC REFLECTION, significantly
Isolation between antennae is improved, antenna others performance is not had any impact, is applied to multiple antennas and is constituted MIMO
In system, isolation between antennas can be improved, improve system message capacity, increase the capacity of resisting disturbance of system.Again due to Meta Materials
Layer has multiple periodic cellular constructions, and each cellular construction is formed with pierced pattern, and pierced pattern is by the metal of perception
Line loads what is formed, pierced pattern formation equivalent inductance, therefore improves the equivalent inductance of cellular construction, the whole unit of miniaturization
Structure, so as to the whole wave absorbing device of miniaturization so that metamaterial layer can be accommodated under identical area greater number of cycle and
Cellular construction, allow wave absorbing device absorbance more preferably.Again due to cellular construction each edge and neighboring unit structure adjacent edge it
Between be welded with resistance, or, be welded with resistance between the pierced pattern and ground of each edge of each cellular construction, therefore can match
Air impedance, while the electromagnetic wave energy reflected by bottom-side metal flat layer is absorbed, so as to play a part of to reduce reflection.Separately
Outward, due to being welded with electric capacity between each edge of cellular construction and the adjacent edge of neighboring unit structure, or, each cellular construction
Each edge pierced pattern and ground between be welded with electric capacity, it is so as to will be resistance and electric capacity in parallel, whole with further miniaturization
Wave absorbing device.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of wave absorbing device of antenna, it is characterised in that the wave absorbing device includes PCB substrate, to be attached to PCB substrate positive super
Material layer and the metal plate layer for being attached to PCB substrate bottom surface, metamaterial layer have multiple periodic cellular constructions, each list
Meta structure is formed with pierced pattern, and pierced pattern is to load what is formed by the metal wire of perception, and pierced pattern forms equivalent inductance.
2. wave absorbing device as claimed in claim 1, it is characterised in that the cellular construction is metal patch.
3. wave absorbing device as claimed in claim 2, it is characterised in that the pierced pattern that each cellular construction is formed is centrally located.
4. wave absorbing device as claimed in claim 3, it is characterised in that the cellular construction is square, each edge of cellular construction
Equivalent capacity is formed and the adjacent edge of neighboring unit structure between, and equivalent capacity is in parallel with equivalent inductance, each cellular construction
Resistance is welded between each edge and the adjacent edge of neighboring unit structure, so as to by resistance and equivalent capacity and equivalent inductance simultaneously
Connection.
5. wave absorbing device as claimed in claim 4, it is characterised in that each edge of each cellular construction and neighboring unit structure
Electric capacity is welded between adjacent edge, so as to will be resistance and electric capacity in parallel.
6. wave absorbing device as claimed in claim 4, it is characterised in that each edge of each cellular construction is respectively provided with for welding electricity
The paster of resistance is raised.
7. wave absorbing device as claimed in claim 1, it is characterised in that the central authorities of each cellular construction have square opening, hollow out figure
Case is formed at the periphery of square opening, and the periphery of pierced pattern is ground, forms equivalent capacity, equivalent capacity between pierced pattern and ground
It is in parallel with equivalent inductance.
8. wave absorbing device as claimed in claim 7, it is characterised in that the pierced pattern of each edge of each cellular construction and ground
Between be welded with resistance, so as to resistance is in parallel with equivalent capacity and equivalent inductance.
9. wave absorbing device as claimed in claim 8, it is characterised in that the pierced pattern of each edge of each cellular construction and ground
Between be welded with electric capacity, so as to will be resistance and electric capacity in parallel.
10. a kind of antenna, it is characterised in that the antenna includes the wave absorbing device of the antenna described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110199.4U CN206040983U (en) | 2016-10-10 | 2016-10-10 | Antenna and inhale ripples ware thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110199.4U CN206040983U (en) | 2016-10-10 | 2016-10-10 | Antenna and inhale ripples ware thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040983U true CN206040983U (en) | 2017-03-22 |
Family
ID=58298023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621110199.4U Active CN206040983U (en) | 2016-10-10 | 2016-10-10 | Antenna and inhale ripples ware thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040983U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317109A (en) * | 2017-07-02 | 2017-11-03 | 中国航空工业集团公司雷华电子技术研究所 | A kind of periodicity floor that wideband wide scan is realized for low profile antenna |
| CN107317487A (en) * | 2017-08-31 | 2017-11-03 | 鲁东大学 | A kind of Switching Power Supply electromagnetic radiation screening arrangement based on resonance circuit |
| CN108738290A (en) * | 2018-04-20 | 2018-11-02 | 西北工业大学 | A kind of Meta Materials wave absorbing device and design method |
| CN108761588A (en) * | 2018-04-09 | 2018-11-06 | 北京邮电大学 | A kind of insensitive Meta Materials wave absorbing device of infrared multiband polarization |
| CN108901194A (en) * | 2018-08-14 | 2018-11-27 | 桂林电子科技大学 | A kind of Novel ultra wide band wave absorbing device |
-
2016
- 2016-10-10 CN CN201621110199.4U patent/CN206040983U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317109A (en) * | 2017-07-02 | 2017-11-03 | 中国航空工业集团公司雷华电子技术研究所 | A kind of periodicity floor that wideband wide scan is realized for low profile antenna |
| CN107317109B (en) * | 2017-07-02 | 2020-09-11 | 中国航空工业集团公司雷华电子技术研究所 | Periodic floor for realizing broadband wide-angle scanning of low-profile antenna |
| CN107317487A (en) * | 2017-08-31 | 2017-11-03 | 鲁东大学 | A kind of Switching Power Supply electromagnetic radiation screening arrangement based on resonance circuit |
| CN108761588A (en) * | 2018-04-09 | 2018-11-06 | 北京邮电大学 | A kind of insensitive Meta Materials wave absorbing device of infrared multiband polarization |
| CN108738290A (en) * | 2018-04-20 | 2018-11-02 | 西北工业大学 | A kind of Meta Materials wave absorbing device and design method |
| CN108738290B (en) * | 2018-04-20 | 2019-10-22 | 西北工业大学 | A kind of Meta Materials wave absorbing device and design method |
| CN108901194A (en) * | 2018-08-14 | 2018-11-27 | 桂林电子科技大学 | A kind of Novel ultra wide band wave absorbing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206040983U (en) | Antenna and inhale ripples ware thereof | |
| CN106058482A (en) | Double-layer conductive thin film-based transparent broadband electromagnetic wave absorber | |
| CN206236783U (en) | A kind of antenna and wireless router | |
| CN111146596B (en) | Wave absorbing/transmitting device of composite window absorber | |
| CN110504553A (en) | A kind of multilayer ultra-wide band wave-absorber that electrically lossy material is compound with magnetic material | |
| CN106299628A (en) | A kind of antenna and wireless router | |
| CN105098374B (en) | A kind of electromagnetic wave absorption structure of ultra wide band | |
| CN112928491B (en) | Ultra-wideband wave-absorbing dual-polarized switchable anti-absorption integrated material | |
| CN104934715A (en) | Multi-frequency-band wave-transparent metamaterial, antenna cover and antenna system | |
| CN105655721A (en) | Double-waveband composite broadband wave absorbing material based on frequency selective surface | |
| CN103490171A (en) | Composite wave-absorbing material with wide frequency bands | |
| CN112864633B (en) | Broadband microwave absorber based on super surface | |
| CN109301405A (en) | The three-dimensional band absorption frequency selecting structures of suction type | |
| CN107799892A (en) | Super-surface magnetoelectric dipole antenna with stacked dielectric plates | |
| CN106654567A (en) | Miniature high-performance and high-band communication antenna cover of capacitive and sensitive surface coupling mechanism | |
| CN208622948U (en) | A kind of controllable absorbing meta-material | |
| CN110265788A (en) | The novel two three-dimensional dual polarization bandpass-type radar-wave absorbing bodies combined | |
| CN107394412A (en) | A kind of artificial magnetic conductor reflecting plate of five frequency ranges multiplexing | |
| CN113054443B (en) | Low-frequency wave absorber | |
| CN106329150A (en) | Microwave absorbing metamaterial | |
| CN109687163A (en) | Restructural phase-modulation screen based on three frequency Artificial magnetic conductor structures | |
| CN204885375U (en) | Low -pass filter structure , antenna house and antenna system | |
| CN204905387U (en) | Band -pass filtering structure , antenna house and antenna system | |
| CN206349515U (en) | A kind of antenna and its director | |
| CN204706646U (en) | Meta Materials filter structure and there is its metamaterial antenna cover and antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |