CN209266570U - A kind of double trap UWB antennas based on liquid crystal polymer - Google Patents
A kind of double trap UWB antennas based on liquid crystal polymer Download PDFInfo
- Publication number
- CN209266570U CN209266570U CN201822075534.7U CN201822075534U CN209266570U CN 209266570 U CN209266570 U CN 209266570U CN 201822075534 U CN201822075534 U CN 201822075534U CN 209266570 U CN209266570 U CN 209266570U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- feed line
- crystal polymer
- radiation patch
- earth plate
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of double trap UWB antennas based on liquid crystal polymer, including substrate, earth plate, feed line and radiation patch, earth plate, feed line and the radiation patch is disposed on the substrate, the substrate is plate made of liquid crystal polymer, the radiation patch is the ellipsoidal structure with split ring resonator, the split ring resonator is with ellipse jaggy, and notch is located at feed line two sides towards the junction of radiation patch and feed line, the earth plate.Compared with prior art, the utility model medium substrate materials'use liquid crystal polymer has many advantages, such as low cost, high-performance, small size, double traps in earth plate upper opening U-type groove structure using split ring resonator on oval patch.
Description
Technical field
The utility model relates to a kind of ultra-wideband antennas, more particularly, to a kind of double trap ultra-wide based on liquid crystal polymer
Band antenna.
Background technique
2002, Federal Communications Commission (FCC) issued new wide-band communication system specification, it is therefore an objective to alleviate frequency
Anxiety with resource and the demand for coping with high-speed communication use 3.1-10.6GHZ frequency allocation to ultra-wideband communications, broadband
And super-broadband tech will be widely used in the fields such as industry, medicine, domestic life.However, the working frequency range of ultra-wideband antenna and existing
The narrowband systems deposited, as Wimax system (3.4-3.69GHz, 5.725-5.85GHz), wlan system (5.15-5.35GHz,
It 5.725-5.825GHz) is overlapped with X-band (7.25-7.75GHz, 7.9-8.4GHz) frequency range, thus is easy to produce interference.Usually
Can by introduce in ultra-wideband systems filter make corresponding band generate trap, thus reduce radio ultra wide band system with it is other
Signal mutual interference between system, however the problems such as the volume that this method will lead to radio ultra wide band system becomes larger, increased costs.
By carrying out certain improvement to traditional antenna, makes antenna itself that there is filter function, be formed trap antenna.
It is one of the important method for solving problems that designing, which has the coplanar waveguide ultra wide band antenna of trap characteristic, while being solved current
The problem of antenna structure and technics comparing complexity.
Utility model content
The purpose of this utility model is exactly to provide a kind of based on liquid crystal to overcome the problems of the above-mentioned prior art
Double trap UWB antennas of polymer.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of double trap UWB antennas based on liquid crystal polymer, including substrate, earth plate, feed line and radiation patch
Piece, the earth plate, feed line and radiation patch are disposed on the substrate, and the substrate is plate made of liquid crystal polymer
Material, the radiation patch are the ellipsoidal structure with split ring resonator, and the split ring resonator is with jaggy ellipse
Circle, notch are located at feed line two sides towards the junction of radiation patch and feed line, the earth plate.
The feed line is the strip of width gradual change, and width is gradually increased towards the direction far from radiation patch.
There are two fork, two forks to be symmetrically connected to feed line for the junction band of the radiation patch and feed line
Two sides.
The fork is arc.
U-type groove is had on the earth plate.
Earth plate, feed line and the radiation patch is located at the same side of substrate, is coplanar waveguide structure.
The substrate thickness is 0.1mm.
Compared with prior art, the utility model has the advantage that
(1) it is added to is used for respectively in earth plate upper opening U-type groove structure using split ring resonator on oval patch
The stopband of WiMAX and X-band downstream frequency, antenna generate trap characteristic at two frequency ranges of 5.5GHz and 7.5GHz, realize
The stopband characteristic of Wimax (effective working frequency range is 5.25-5.85GHz) and X-band downstream frequency (7.25-7.75GHz), inhibits
Their interference to radio ultra wide band system.
(2) structure for using co-planar waveguide, makes that antenna size is small, structure is simple, is easy to make, and is suitable for wireless communication system
System and equipment.
(3) feed line uses grading structure, can be realized compared to using the coplanar wave guide feedback structure of uniform half structure
With the matched well of antenna input port characteristic impedance.Co-planar waveguide is adjusted by changing the width of co-planar waveguide signal conduction band
Characteristic impedance, to analyze the input impedance of feed structure and antenna input port joining place and for antenna impedance bandwidth
Influence, to realize preferable matching, to broaden the impedance bandwidth of antenna.
(4) medium substrate materials'use liquid crystal polymer (LCP), polymeric liquid crystal copolymer (LCP) is as a kind of new
The flexible substrate material of type, thermal expansion coefficient is low, low in cost, loss is smaller, and dielectric constant is in sufficiently wide frequency range
It is all completely stable, have the advantages that low cost, high-performance, small size.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the S11 simulation result diagram of the present embodiment；
Appended drawing reference:
1 is earth plate；2 be feed line；3 be radiation patch.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
Embodiment
As shown in Figure 1, a kind of double trap UWB antennas based on liquid crystal polymer, including substrate, earth plate 1, feed
Line 2 and radiation patch 3, earth plate 1, feed line 2 and radiation patch 3 are located at the same side of substrate, are coplanar waveguide structure.Substrate
For plate made of liquid crystal polymer, with a thickness of 0.1mm, radiation patch 3 is the ellipsoidal structure with split ring resonator, opening
Resonant ring is with ellipse jaggy, and notch is located at feed line towards the junction of radiation patch 3 and feed line 2, earth plate 1
2 two sides, and have U-type groove.
Feed line 2 is the strip of width gradual change, and width is gradually increased towards the direction far from radiation patch 3.
There are two arcs to diverge for the junction band of radiation patch 3 and feed line 2, and two forks are symmetrically connected to feed line
2 two sides make junction form similar trident structure.
The following are the improvements of the present embodiment:
(1) flexible material
The medium substrate materials'use of antenna liquid crystal polymer (LCP).Currently, in the field of microwave and millimeter wave circuit,
Polymeric liquid crystal copolymer (LCP) possesses excellent prospect of the application as a kind of novel flexible substrate material.LCP has
Many outstanding characteristics, it is low including thermal expansion coefficient, low in cost, loss is smaller the advantages that, and the dielectric constant of LCP
It is all completely stable in sufficiently wide frequency range, this allow LCP low cost, high-performance, small size device design at
For optimal selection.
Especially in wearable field, liquid crystal polymer (LCP) material possesses fabulous flexible as a kind of flexible material
Property, it can arbitrarily be bent, overlay on carrier surface, therefore have fabulous and development prospect.
(2) coplanar waveguide structure
Co-planar waveguide (Coplanar wave-guide, abbreviation CPW) structure is a kind of integrated planar transmission line structure,
It can be described as microstrip transmission line structure, not only have the characteristics that the low section of microstrip line construction, low cost and be easy conformal, itself is also
With low dispersivity, be easily integrated with low transmission loss etc. advantages, main mould be still quasi- TEM wave as microstrip line construction.
(3) double trap performances
Firstly, for the ultra-wideband antenna for not adding trap, simulation result shows that the antenna is covered on 2.92-11GHz.And
By using split ring resonator on oval patch, in earth plate upper opening U-type groove structure, so that in the working frequency of antenna
On be added to stopband for WiMAX and X-band downstream frequency, it is therefore prevented that existing wireless communication frequency band is interfered.Fig. 2
For the S11 simulation result of antenna, it can be seen that the stopband for WiMAX and X-band downstream frequency.
Claims (7)
1. a kind of double trap UWB antennas based on liquid crystal polymer, including substrate, earth plate, feed line and radiation patch,
Earth plate, feed line and the radiation patch is disposed on the substrate, which is characterized in that the substrate is liquid crystal polymer system
At plate, the radiation patch be the ellipsoidal structure with split ring resonator, the split ring resonator be with lack
The ellipse of mouth, notch are located at feed line two sides towards the junction of radiation patch and feed line, the earth plate.
2. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 1, which is characterized in that described
Feed line be width gradual change strip, width gradually increases towards far from the direction of radiation patch.
3. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 1, which is characterized in that described
Radiation patch and feed line junction band there are two fork, two forks are symmetrically connected to feed line two sides.
4. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 3, which is characterized in that described
Fork be arc.
5. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 1, which is characterized in that described
Earth plate on have U-type groove.
6. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 1, which is characterized in that described
Earth plate, feed line and radiation patch be located at the same side of substrate, be coplanar waveguide structure.
7. a kind of double trap UWB antennas based on liquid crystal polymer according to claim 1, which is characterized in that described
Substrate thickness be 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075534.7U CN209266570U (en) | 2018-12-11 | 2018-12-11 | A kind of double trap UWB antennas based on liquid crystal polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075534.7U CN209266570U (en) | 2018-12-11 | 2018-12-11 | A kind of double trap UWB antennas based on liquid crystal polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266570U true CN209266570U (en) | 2019-08-16 |
Family
ID=67563003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822075534.7U Expired - Fee Related CN209266570U (en) | 2018-12-11 | 2018-12-11 | A kind of double trap UWB antennas based on liquid crystal polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266570U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755733A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of double trap UWB antennas based on liquid crystal polymer |
| US11258184B2 (en) | 2019-08-21 | 2022-02-22 | Ticona Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11555113B2 (en) | 2019-09-10 | 2023-01-17 | Ticona Llc | Liquid crystalline polymer composition |
| US11637365B2 (en) | 2019-08-21 | 2023-04-25 | Ticona Llc | Polymer composition for use in an antenna system |
| US11646760B2 (en) | 2019-09-23 | 2023-05-09 | Ticona Llc | RF filter for use at 5G frequencies |
| US11721888B2 (en) | 2019-11-11 | 2023-08-08 | Ticona Llc | Antenna cover including a polymer composition having a low dielectric constant and dissipation factor |
| US11729908B2 (en) | 2020-02-26 | 2023-08-15 | Ticona Llc | Circuit structure |
| US11728559B2 (en) | 2021-02-18 | 2023-08-15 | Ticona Llc | Polymer composition for use in an antenna system |
| US11917753B2 (en) | 2019-09-23 | 2024-02-27 | Ticona Llc | Circuit board for use at 5G frequencies |
| US11912817B2 (en) | 2019-09-10 | 2024-02-27 | Ticona Llc | Polymer composition for laser direct structuring |
-
2018
- 2018-12-11 CN CN201822075534.7U patent/CN209266570U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755733A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of double trap UWB antennas based on liquid crystal polymer |
| US11258184B2 (en) | 2019-08-21 | 2022-02-22 | Ticona Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11637365B2 (en) | 2019-08-21 | 2023-04-25 | Ticona Llc | Polymer composition for use in an antenna system |
| US11705641B2 (en) | 2019-08-21 | 2023-07-18 | Ticoan Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11555113B2 (en) | 2019-09-10 | 2023-01-17 | Ticona Llc | Liquid crystalline polymer composition |
| US11912817B2 (en) | 2019-09-10 | 2024-02-27 | Ticona Llc | Polymer composition for laser direct structuring |
| US11646760B2 (en) | 2019-09-23 | 2023-05-09 | Ticona Llc | RF filter for use at 5G frequencies |
| US11917753B2 (en) | 2019-09-23 | 2024-02-27 | Ticona Llc | Circuit board for use at 5G frequencies |
| US11721888B2 (en) | 2019-11-11 | 2023-08-08 | Ticona Llc | Antenna cover including a polymer composition having a low dielectric constant and dissipation factor |
| US11729908B2 (en) | 2020-02-26 | 2023-08-15 | Ticona Llc | Circuit structure |
| US11728559B2 (en) | 2021-02-18 | 2023-08-15 | Ticona Llc | Polymer composition for use in an antenna system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209266570U (en) | A kind of double trap UWB antennas based on liquid crystal polymer | |
| CN109755733A (en) | A kind of double trap UWB antennas based on liquid crystal polymer | |
| CN102570023A (en) | Ultra wideband antenna with four-notched band characteristics | |
| CN109672020A (en) | A kind of double trap flexible antennas of the ultra wide band of coplanar wave guide feedback | |
| CN106785463A (en) | A kind of single trap ultra-wideband monopole antenna | |
| CN202712416U (en) | Ultra wideband antenna | |
| CN112768910B (en) | Reconfigurable terahertz antenna based on graphene-metal structure and frequency modulation method | |
| CN104425860A (en) | Substrate integrated waveguide bandpass filter with wide stop-band characteristic | |
| Saleem et al. | Empirical miniaturization analysis of inverse parabolic step sequence based UWB antennas | |
| CN206349513U (en) | A kind of single trap ultra-wideband monopole antenna | |
| CN208272081U (en) | Rectangle E flank of tooth multiple-grooved band hinders Slab Dielectric Waveguide terahertz filter | |
| CN114336058A (en) | Frequency-electricity-adjustable double-trapped-wave miniaturized ultra-wideband microstrip antenna | |
| CN106299665B (en) | Planar trident-shaped ultra-wideband antenna with trapped wave characteristic | |
| CN104681972B (en) | There is the groove loading ultra-wideband monopole antenna of stabilising direction figure and good Out-of-band rejection ability simultaneously | |
| Che et al. | Simulation of a small sized antipodal Vivaldi antenna for UWB applications | |
| Zehforoosh et al. | An improved CPW-fed printed UWB antenna with controllable band-notched functions | |
| CN109638395B (en) | Microstrip ultra wide band pass filter | |
| CN104681956A (en) | UWB (Ultra-wideband) band-notch antenna with steep stop band | |
| CN209516002U (en) | A kind of double trap flexible antennas of the ultra wide band of coplanar wave guide feedback | |
| CN102637955B (en) | Small-size ultra wide-band microstrip antenna with band-stop characteristic | |
| Zeng et al. | Compact microstrip low‐pass filter using complementary split ring resonators with ultra‐wide stopband and high selectivity | |
| CN104681966A (en) | Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna | |
| CN113964534A (en) | Trapped wave ultra wide band antenna with two trapped wave characteristics | |
| Yu et al. | Design of UWB Antenna with Double Band-notched in 5G | |
| CN108539333B (en) | compact broadband band-pass filter of mixed half-mode substrate integrated waveguide and microstrip line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20191211 |