CN107845849A - Narrow band filter based on artificial surface plasma - Google Patents
Narrow band filter based on artificial surface plasma Download PDFInfo
- Publication number
- CN107845849A CN107845849A CN201610480685.3A CN201610480685A CN107845849A CN 107845849 A CN107845849 A CN 107845849A CN 201610480685 A CN201610480685 A CN 201610480685A CN 107845849 A CN107845849 A CN 107845849A
- Authority
- CN
- China
- Prior art keywords
- coupling resonator
- stepped impedance
- parallel coupling
- surface plasma
- medium substrate
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses the narrow band filter based on artificial surface plasma, and it belongs to the bandpass filter that microwave technical field uses, more particularly to planar structure and artificial surface plasma Meta Materials.Its composition includes：Medium substrate（1）, Stepped Impedance structure (2), parallel coupling resonator (3), described Stepped Impedance structure is printed on medium substrate upper surface with parallel coupled resonators, described parallel coupling resonator is located at the middle part of medium substrate, two panels Stepped Impedance structure is individually fixed in parallel coupling resonator both sides, and has gap and distance.Simple in construction, compact of the invention, easy to process, cost is low；By changing size and the position of parallel coupling resonator, centre frequency and bandwidth can be adjusted, solves the problems, such as ultra-wideband communication system co-channel interference.
Description
Technical field
The invention belongs to the bandpass filter that microwave technical field uses, more particularly to planar structure and artificial surface etc.
Gas ions Meta Materials.
Background technology
Surface plasma excimer（Surface Plasmon Polarions, abbreviation SPPs）, it is in metal and medium
The mixed activation state of a kind of electronics and photon on (being typically air) interface, is to be constrained on metal and model near medium side
Enclose the surface wave of interior transmission.Because SPPs can break through the limitation of diffraction limit, the beam to electromagnetic field time wavelength can be realized
Tie up, therefore be widely used in biologic medical detection, NFM, photoelectron, solar photoelectric and nanophotonics etc.
Aspect.But in microwave frequency band, metal shows as perfect electric conductor (PEC), with SPPs, its etc. are not present on medium interface
Ion frequency is generally present in visible ray and ultraviolet band.2004, the Pendry of Imperial College of Britain was taught from reason
By above proposing artificial surface plasma（spoof SPPs）Novel concept.2005, Hibbins et al. was in Microwave Frequency
Duan Shangyong experiments confirm spoof SPPs phenomenons.
Planar structure, such as co-planar waveguide, microstrip line, substrate integration wave-guide etc., have and minimize, be integrated, being easy to add
Work, with other active circuit elements it is easy to the advantages that compatible, be widely used at present.
Bandpass filter, mainly used in transmitting terminal prime or the rear class of receiving terminal, for filtering out high-frequency signal, obtain
Preferable low frequency signal.Microwave band-pass filter plays an important role in terms of noise and spurious signal suppression, nowadays, bandpass filter
The communications field has been may not only be applied to, and has been widely used in RF and microwave product, such as radar, WLAN, microwave communication
Link, electronic circuit, microwave measurement circuit, wireless senser and control etc. become device indispensable in each electronic equipment
Part, its performance also contribute to the quality of whole system.Traditional microwave band-pass filter is tied by Stepped Impedance structure and defect
Structure etc..
Compared to traditional microwave band-pass filter, the microwave band-pass filter based on spoof SPPs in the present invention, tool
Have the advantages that it is high restrictive, be easily integrated and controllability.Narrow band filter its passband relative fractions band in the present invention
A width of 12.8%, centre frequency 3.1GHz, in 2.9GHz to 3.3GHz free transmission range, its return loss -10dB with
Under, its insertion loss is more than -1dB, and in microwave communication and system, these features are for filtering surface plasma polarization ripple
It is extremely important.
The content of the invention
The present invention devises the narrow band filter based on artificial surface plasma.This narrow band filter is based on
The spoof SPPs of planar structure, its free transmission range are 2.9GHz to 3.3GHz, relative fractions band a width of 12.8%, centre frequency
For 3.1GHz.The wave filter of invention have it is simple and compact for structure, be easily integrated, adjustability is high, the restrictive good characteristic such as good, full
Foot microwave device miniaturization, integrated requirement, can be widely applied in microwave system.
Technical solutions according to the invention are：
Based on the narrow band filter of artificial surface plasma, it is characterized in that：Including medium substrate, Stepped Impedance structure,
Parallel coupling resonator, described Stepped Impedance structure is printed on medium substrate upper surface with parallel coupled resonators, described
Parallel coupling resonator is located at the middle part of medium substrate, and two panels Stepped Impedance structure is individually fixed in parallel coupling resonator two
Side, and have gap and distance with it.
Beneficial effect of the present invention is：
1st, filter construction single-layer printed circuit plate technique of the present invention can be achieved, simple and compact for structure, compact,
It is easy to process, cost is low.
2nd, parallel coupling resonator structure of the present invention, pass band width and center are adjusted by adjusting resonator dimensions
Frequency, realize that ultra-wideband communications disturb the compatible communication for coordination of communication system with neglecting.
3rd, the wave filter designed by the present invention, low production cost, is easy to produce in batches.
Brief description of the drawings
Fig. 1 is the top view of narrow-band pass filter of the present invention；
Fig. 2 is the schematic diagram in rectangle cycle hole；
Fig. 3 is the schematic diagram of Stepped Impedance structure；
Fig. 4 is the schematic diagram of parallel coupling resonator structure.
Fig. 5 is the simulation result figure of low pass filter of the present invention.
Contain in above picture：
1：Medium substrate；2：Stepped Impedance structure；3：Parallel coupling resonator.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is furture elucidated.
As shown in Figure 1：Based on the narrow band filter of artificial surface plasma, its composition includes：Medium substrate, rank
Jump impedance structure is printed on medium substrate upper surface with parallel coupled resonators, and described parallel coupling resonator is located at medium base
The middle part of plate, two panels Stepped Impedance structure is individually fixed in parallel coupling resonator both sides, and has gap and distance.
Described dielectric substrate thickness is 0.05mm, and relative dielectric constant 3.3,10GHz loss angles are 0.03.
Described Stepped Impedance structure by two kinds of different sizes and include the rectangle drilled metal band structure in 4 cycles
Into the width a of slot one1, depth b1, period p1, height h1Respectively 4mm, 8mm, 10mm and 10mm；Slot two
Width a2, depth b2, period p2, height h2Respectively 2mm, 4mm, 5mm and 5mm, as shown in Figure 3.
Described parallel coupling resonator is made up of two rectangle drilled metal bands, and wall scroll metal tape includes 8 cycles
Rectangle circular port, width a, depth b, period p, such as respective heights h 2mm, 4mm, 5mm and 5mm, Fig. 4 of slot
It is shown.
Described Stepped Impedance structure is 0.3mm with the gap g of parallel coupled resonators, and spacing distance w is 3.5mm.
Fig. 5 is the S parameter curve map of invention wave filter, it can be seen that its free transmission range arrives for 2.9GHz
3.3GHz, relative fractions band a width of 12.8%, centre frequency 3.1GHz.
Claims (3)
1. based on the narrow band filter of artificial surface plasma, its composition includes：Medium substrate, Stepped Impedance structure and
Parallel coupling resonator, wherein Stepped Impedance structure are printed on medium substrate upper surface with parallel coupled resonators, and described is flat
Row coupled resonators is located at the middle part of medium substrate, and two panels Stepped Impedance structure is individually fixed in parallel coupling resonator both sides,
And there are gap and distance.
2. the narrow band filter according to claim 1 based on artificial surface plasma, it is characterised in that described
Stepped Impedance structure is made up of two kinds of various sizes of rectangle drilled metal bands, and each metal tape is rectangular by 4 cycles
Shape hole rearranges.
3. the narrow band filter according to claim 1 based on artificial surface plasma, it is characterised in that described
Parallel coupling resonator is made up of two rectangle drilled metal bands, and slot arrangement of the every metal with 8 cycles
Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480685.3A CN107845849A (en) | 2016-09-21 | 2016-09-21 | Narrow band filter based on artificial surface plasma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480685.3A CN107845849A (en) | 2016-09-21 | 2016-09-21 | Narrow band filter based on artificial surface plasma |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107845849A true CN107845849A (en) | 2018-03-27 |
Family
ID=61656390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610480685.3A Pending CN107845849A (en) | 2016-09-21 | 2016-09-21 | Narrow band filter based on artificial surface plasma |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107845849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901253A (en) * | 2019-03-22 | 2019-06-18 | 江南大学 | A kind of surface plasma fluid filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577270A (en) * | 2015-01-21 | 2015-04-29 | 东南大学 | Broadband filter based on frequency selective surface plasmon |
| CN204538157U (en) * | 2014-12-21 | 2015-08-05 | 哈尔滨黑石科技有限公司 | The UWB filter of many stopbands is configured based on stepped impedance |
| CN105024122A (en) * | 2015-07-21 | 2015-11-04 | 天津大学 | Three-passband microstrip filter based on SIR structure |
| CN105932376A (en) * | 2016-06-01 | 2016-09-07 | 六盘水师范学院 | Microwave band-pass filter with double transmission line structure |
-
2016
- 2016-09-21 CN CN201610480685.3A patent/CN107845849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204538157U (en) * | 2014-12-21 | 2015-08-05 | 哈尔滨黑石科技有限公司 | The UWB filter of many stopbands is configured based on stepped impedance |
| CN104577270A (en) * | 2015-01-21 | 2015-04-29 | 东南大学 | Broadband filter based on frequency selective surface plasmon |
| CN105024122A (en) * | 2015-07-21 | 2015-11-04 | 天津大学 | Three-passband microstrip filter based on SIR structure |
| CN105932376A (en) * | 2016-06-01 | 2016-09-07 | 六盘水师范学院 | Microwave band-pass filter with double transmission line structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901253A (en) * | 2019-03-22 | 2019-06-18 | 江南大学 | A kind of surface plasma fluid filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111883914B (en) | Dielectric resonator broadband antenna with filter characteristic based on SIW feeding | |
| CN109462000B (en) | Multi-layer substrate integrated waveguide third-order filtering power divider | |
| CN108631057B (en) | Yagi antenna with filtering characteristic | |
| CN106816696B (en) | A kind of Vivaldi antenna | |
| CN106374173A (en) | Novel ultra wideband low pass filter with double notch | |
| CN107134614B (en) | A kind of multi-layer ceramics microwave band-pass filter | |
| JP2017537581A (en) | Transverse electromagnetic mode dielectric filter, radio frequency module, and base station | |
| KR101127290B1 (en) | Quadrilateral patch type balun filter | |
| CN205122736U (en) | Novel ultra wide band low pass filter with two trapped waves | |
| CN207381507U (en) | Capacitive coupling bandpass filter based on artificial surface plasma | |
| CN107845849A (en) | Narrow band filter based on artificial surface plasma | |
| CN206685518U (en) | A kind of narrow band filter based on artificial surface plasma | |
| CN105140645A (en) | Harmonic suppressing antenna | |
| CN104134837B (en) | A kind of plane CQ band filter | |
| CN110581354A (en) | Dual-polarization 5G millimeter wave antenna structure and mobile device | |
| TWM336632U (en) | A dual-band bandpass filter with stepped impedance resonators and defected ground structure | |
| CN206878147U (en) | A kind of parallel coupling wave filter based on artificial surface plasma | |
| US11177546B2 (en) | Bandpass filter based on effective localized surface plasmons and operation method thereof | |
| Zeng et al. | Compact microstrip low‐pass filter using complementary split ring resonators with ultra‐wide stopband and high selectivity | |
| JP4498297B2 (en) | Filter circuit | |
| CN209913004U (en) | Wide stop band microwave filter based on coplanar waveguide | |
| CN107181055A (en) | Vivaldi antennas with trap characteristic | |
| CN207165727U (en) | Low pass bandstop filter based on artificial surface plasma | |
| Lee et al. | MMR-based band-notched UWB bandpass filter design | |
| CN110323524A (en) | A kind of Novel ultra wide band low-pass filter with double traps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180327 |