CN108493597A - A kind of millimeter wave antenna based on surface plasma excimer - Google Patents
A kind of millimeter wave antenna based on surface plasma excimer Download PDFInfo
- Publication number
- CN108493597A CN108493597A CN201810242556.XA CN201810242556A CN108493597A CN 108493597 A CN108493597 A CN 108493597A CN 201810242556 A CN201810242556 A CN 201810242556A CN 108493597 A CN108493597 A CN 108493597A
- Authority
- CN
- China
- Prior art keywords
- antenna
- millimeter wave
- ripple
- metal micro
- surface plasma
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Landscapes
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
Include PCB dielectric-slabs and two metal micro-strips the invention discloses a kind of millimeter wave antenna based on surface plasma excimer, go out two metal micro-strips in two surface etch of PCB dielectric-slabs, two metal micro-strips contain the overlapping region for being useful for adjusting impedance matching between SMA and antenna, zigzag fashion ripple struction is etched in two metal micro-strips respectively, forms ripple micro-strip item；Zigzag fashion ripple's depth is obtained according to the working frequency of antenna, parameter relationship formula and dispersion relationh, corrugated periodicp。It has the beneficial effect that：By the structural parameters for the dentalation that controlling cycle arranges, equivalent aerial bore is formed in one end of strange film transmission line, realizes the direct radiation of plasmon, and then a kind of high efficiency working in Ka wave bands of acquisition, high-gain millimeter wave antenna.
Description
Technical field
The invention belongs to electromagnetic wave fields, and in particular to a kind of millimeter wave antenna based on surface plasma excimer.
Background technology
Surface plasma excimer (back abbreviation SPPs) is a kind of surface electromagnetic wave that can be propagated on corrugated metal surface
Pattern.It utilizes the metallic film array of the dentalation of the periodic arrangement formed in medium substrate, in vertical transmission direction
It is upper that electromagnetic wave is tightly fettered on medium/metal interface, and make electromagnetic wave along patterned metal structure Array transfer shape
At so-called surface electromagnetic wave (i.e. artificial surface plasmon).By the cycle length, the tooth that adjust dentation periodic structure
Depth and the facewidth, can be with the progressive frequency of control surface electromagnetic wave and the size of wave number.It is easy to implement conventional microstrip line, co-planar waveguide
Etc. the function and characteristic that cannot achieve.Based on the transmission line of plasmon than conventional transmission line in millimeter wave and Terahertz frequency
Section has lower loss.It has broad application prospects in millimeter wave and THz wave bands.Recently, there has been proposed based on surface
The radio frequency and microwave circuit of the multiple functions of plasmon, such as filter, power splitter, coupler and antenna.But at present
Most of antenna based on surface plasma excimer is the emission function for the antenna realized using dipole radiation.Due to idol
Polar radiations efficiency is relatively low, limits the efficiency of these antenna and further increasing for gain.
Fig. 1 (a) is the big unilateral corrugated surface plasmon transmission line (back abbreviation SPPs transmission lines) of semo-infinite.
The electromagnetic wave of TM patterns is bound in transmission line and propagates forward.It is gradually reduced ripple's depth h in one end (right end) of transmission line,
Transmission line just gradually dies down to the constraint of electromagnetic field, causes the component (E of the electromagnetic field perpendicular to the direction of propagationz,Hy) extension；Together
When along the direction of propagation electric field component ExIt is gradually reduced, the electromagnetic wave of TM patterns is converted into the electromagnetic wave of TEM mode, forms radiation
Electromagnetic wave, that is, transmission line one end form equivalent aerial radiation bore.But in actual corrugated surface plasma
Always mirror symmetry distribution is presented about xoz planes in electromagnetic field in excimer transmission line.As shown in Fig. 1 (b), the electromagnetism of upper half-space
Field is opposite with the electromagnetism field direction of the lower half-space, equal in magnitude, and equivalent radiated power electric current is reversed, cannot to which far-field radiation is offset
Form effective aerial radiation bore.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of travelling-wave aerial based on surface plasma excimer, pass through
Controlling cycle arrangement dentalation structural parameters, strange film transmission line one end formed equivalent aerial bore, realize etc. from
The direct radiation of daughter excimer, and then obtain a kind of high efficiency working in Ka wave bands, high-gain millimeter wave antenna, specifically by with
Lower technical solution is realized：
The millimeter wave antenna based on surface plasma excimer, including PCB dielectric-slabs and two metal micro-strips,
Two surface etch of PCB medium substrates go out two metal micro-strips, and two metal micro-strips, which contain, to be useful for adjusting SMA and antenna
Between impedance matching overlapping region, zigzag fashion ripple struction is etched in two metal micro-strips respectively, forms ripple micro-strip item；
Zigzag fashion ripple's depth h, ripple are obtained according to the working frequency of antenna, formula (1), formula (2) and dispersion relation
Period p,
In formula, a is ripple gap, and β is the wave number of the direction of propagation, k0It is the wave number in vacuum, c is the light velocity in vacuum, and f is
The frequency of SPPs.
The further design of the millimeter wave antenna based on surface plasma excimer is that each metal micro-strip is in
Portion is gradually decrease to 0 from the depth of the zigzag ripple at both ends by h, forms equivalent radiated power bore.
The further design of the millimeter wave antenna based on surface plasma excimer is, the width of overlapping region from
From left to right is gradually reduced, and shape is at an angle between two metal micro-strip item of antenna right end, α ∈ (0 °, 3 °).
The further design of the millimeter wave antenna based on surface plasma excimer is that the dispersion relation is electricity
Magnetic design of Simulation software obtains the dispersion curve of the f- β under the conditions of different depth.
The millimeter wave antenna based on surface plasma excimer it is further design be, the PCB dielectric-slabs of antenna
Rogers RT5880, thickness 0.254mm are selected, copper thickness 0.018mm on substrate.
The further design of the millimeter wave antenna based on surface plasma excimer is that the overlapping region is in width
Degree is the rectangle of 0.3mm.
It is an advantage of the invention that：
The dentalation of the present invention arranged by controlling cycle based on the millimeter wave antenna of surface plasma excimer
Structural parameters form equivalent aerial bore in one end of strange film transmission line, realize the direct radiation of plasmon, and then obtain
A kind of high efficiency working in Ka wave bands, high-gain millimeter wave antenna.
Description of the drawings
Fig. 1 is SPPs end-on-fire antenna principle schematics.
Fig. 2 is the dispersion relation schematic diagram under different tooth depth h conditions.
Fig. 3 (a) is the first SPP end-on-fire antenna structural schematic diagram.
Fig. 3 (b) antenna surface distribution map of the electric field.
Fig. 4 is the first structure SPP end-on-fire antenna far-field patterns.
Fig. 5 is second of SPP end-on-fire antenna structural schematic diagram.
Fig. 6 is second of structure SPP end-on-fire antenna far-field pattern.
Fig. 7 is second of structure SPP end-on-fire antenna pictorial diagram.
Fig. 8 is that the emulation of SPP end-on-fire antenna S parameters compares schematic diagram with measured result.
Fig. 9 is that the emulation of SPP end-on-fire antenna gains compares schematic diagram with measured result.
Figure 10 is that the emulation of SPP end-on-fire antenna efficiency compares schematic diagram with measured result.
Figure 11 is that the emulation of SPP end-on-fire antenna E-plane and H-plane patterns compares schematic diagram with measured result.
Specific implementation mode
The present invention program is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Fig. 3 (a), the millimeter wave antenna (but being not limited to millimeter wave) based on surface plasma excimer, including PCB
Medium substrate 103 and two metal micro-strips 101 and 102, the metal etch on 103 upper and lower two surfaces of PCB medium substrates go out two
Metal micro-strip 101 and 103.For ease of transferring with standard sub-miniature A connector, the metal etch of medium substrate upper surface is formed metal
Micro-strip 101, lower surface metal 102 as radiofrequency signal " ".The width and standard of the metal micro-strip of medium substrate upper surface
50 ohm of SMA impedance matchings.For convenience of follow-up narration, this end of the welding sub-miniature A connector of antenna is hereinafter referred to as " left end ", and
With the other end of " left end " relative antenna be known as " right end ".Region I in the vertical view of back to back Fig. 3 (a) be micro-strip to
The transition region of two-sided parallel strips, the region by gradually isolate, shrink " " metal forms.At two of two-sided parallel strips
Zigzag fashion ripple struction is etched in metal micro-strip respectively, forms ripple micro-strip item；
Zigzag fashion ripple's depth h, ripple are obtained according to the working frequency of antenna, formula (1), formula (2) and dispersion relation
Period p,
In formula, a is ripple gap, and β is the wave number of the direction of propagation, k0It is the wave number in vacuum, c is the light velocity in vacuum, and f is
The frequency of SPPs.
In view of what SPP was propagated is the electromagnetic wave of TM patterns, turn so needing to have from Quasi-TEM mode to TM patterns
It changes.Each metal micro-strip is gradually decrease to 0 from the depth of the zigzag ripple at both ends by middle part by h, forms equivalent radiated power bore.
Such as the region II of Fig. 3 (a), zigzag fashion ripple's depth h is gradually increased in of the invention, to form good transition.Microstrip line
" " isolate and be drifted apart to form horn shape, as shown in Fig. 3 (a).Using gradually open " " in undulatory micro-strip table
Face forms TM pattern electromagnetic fields.
The overlapping region of the present embodiment is in the rectangle that width is 0.3mm.
Dispersion relation is that Electromagnetic Simulation design software obtains the dispersion curve of the f- β under the conditions of different depth.To work in
For Ka wave band 28GHz millimeter wave antennas, it is as shown in Figure 2 to obtain f- β dispersion curves.For the antenna of above-mentioned working frequency, root
According to Fig. 2, it is 35GHz to select asymptotic frequency (the corresponding frequency in π=1 β p/).
The PCB dielectric-slabs of antenna select Rogers RT5880, thickness 0.254mm, copper thickness 0.018mm on substrate.
In the positive and negative structure for etching antenna respectively of substrate, as shown in Figure 7.
In this example, Antenna Operation center frequency designations are in 28GHz；Corresponding zigzag ripple depth design is h=
The gap a=0.5*p=1.25mm of 1mm, period p=2.5mm, between cog.
Shown in nearly field distribution such as Fig. 3 (b) of antenna surface, in antenna left end, electric field is bound on ripple micro-strip item
And it propagates to the right；In the equivalent radiated power bore region of antenna right end, electric field is extended from ripple micro-strip surface to surrounding space, shape
At end to the right to radiation (i.e. end-fire).
The far-field radiation of antenna obtains higher gain as shown in figure 4, form effective end-fire：9.08dB.Together
When, also observe that the graing lobe of far-field radiation is larger.
Embodiment 2
As shown in Figure 4 the graing lobe of the far-field radiation of the millimeter wave antenna based on surface plasma excimer of embodiment 1 compared with
Greatly.If can inhibit graing lobe, the main lobe gain of end-on direction can further increase.Therefore, in order to further improve end-fire
The main lobe gain in direction, it is proposed that second structure SPPs end-on-fire antenna.
Such as Fig. 5, the millimeter wave antenna based on surface plasma excimer of the embodiment, including PCB dielectric-slabs and two
Metal micro-strip goes out two metal micro-strips in two surface etch of PCB dielectric-slabs, and two metal micro-strips, which contain, to be useful for adjusting SMA
The overlapping region of impedance matching between antenna is etched with zigzag fashion ripple struction in two metal micro-strips respectively, forms ripple
Micro-strip item；Zigzag fashion ripple's depth h, ripple week are obtained according to the working frequency of antenna, formula (1), formula (2) and dispersion relation
Phase p,
In formula, a is ripple gap, and β is the wave number of the direction of propagation, k0It is the wave number in vacuum, c is the light velocity in vacuum, and f is
The frequency of SPPs.The width of the overlapping region of the present embodiment is gradually reduced from left to right, between two metal micro-strip item of antenna right end
Form the angles small subtended angle α.In the present embodiment, α=1.5 °, but actually α subtended angles can be made according to specific Antenna Design it is excellent
Change adjustment, usual the α angle very littles, generally no greater than 3 °.The far-field radiation of antenna is as shown in fig. 6, compare the first structure day
The far-field pattern of line (see Fig. 4), it can be seen that graing lobe is significantly inhibited, and gain improves 6.32dB.
For above-mentioned two embodiments, using the antenna S parameter of Agilent vector network analyzers E8363C tests as schemed
Shown in 8, simulation result is also provided together as reference.As a result being shown in broad frequency range (27.5-31.5GHz) antenna can be with
50 ohm of SMA adapter impedance matchings show the broadband character of antenna (antenna measurement carries out in microwave dark room).It surveys
The antenna gain of examination and emulation, antenna efficiency are provided by Fig. 9 and Figure 10 respectively.In being averaged for 28GHz to 31GHz range internal antennas
Gain reaches 15dB, and efficiency is more than 90%.The directional diagram in the faces E and the faces H is shown in Figure 11 (a)-(h), including hands over coplanar polarization
With the comparison for pitching polarized measured result and simulation result.The result, which is shown, has stable end-on direction with internal antenna
Figure, lower cross polarization.
The dentation knot arranged by controlling cycle based on the millimeter wave antenna of surface plasma excimer of above-described embodiment
The structural parameters of structure form equivalent aerial bore in one end of strange film transmission line, realize the direct radiation of plasmon, into
And obtain a kind of high efficiency working in Ka wave bands, high-gain millimeter wave antenna.
The technical scope of the present invention is not limited to the contents of the specification, all in the spirit and principles in the present invention range
Within made by all any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of millimeter wave antenna based on surface plasma excimer, it is characterised in that including PCB dielectric-slabs and two metals
Micro-strip goes out two metal micro-strips in two surface etch of PCB medium substrates, and two metal micro-strips, which contain, to be useful for adjusting
The overlapping region of impedance matching between SMA and antenna is etched with zigzag fashion ripple struction in two metal micro-strips respectively, forms wave
Line micro-strip item；
Zigzag fashion ripple's depth h, corrugated periodic are obtained according to the working frequency of antenna, formula (1), formula (2) and dispersion relation
P,
In formula, a is ripple gap, and β is the wave number of the direction of propagation, k0It is the wave number in vacuum, c is the light velocity in vacuum, and f is SPPs
Frequency.
2. the millimeter wave antenna according to claim 1 based on surface plasma excimer, it is characterised in that each metal
Micro-strip is gradually decrease to 0 from the depth of the zigzag ripple at both ends by middle part by h, forms equivalent radiated power bore.
3. the millimeter wave antenna according to claim 1 based on surface plasma excimer, it is characterised in that overlapping region
Width be gradually reduced from left to right, shape is at an angle between two metal micro-strip item of antenna right end, α ∈ (0 °, 3 °).
4. the millimeter wave antenna according to claim 1 based on surface plasma excimer, it is characterised in that the dispersion
Relationship is that Electromagnetic Simulation design software obtains the dispersion curve of the f- β under the conditions of different depth.
5. the millimeter wave antenna according to claim 1 based on surface plasma excimer, it is characterised in that the PCB of antenna
Dielectric-slab selects Rogers RT5880, thickness 0.254mm, copper thickness 0.018mm on substrate.
6. the millimeter wave antenna according to claim 1 based on surface plasma excimer, it is characterised in that the overlapping
Region is in the rectangle that width is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242556.XA CN108493597B (en) | 2018-03-21 | 2018-03-21 | Millimeter wave antenna based on surface plasmon polariton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242556.XA CN108493597B (en) | 2018-03-21 | 2018-03-21 | Millimeter wave antenna based on surface plasmon polariton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108493597A true CN108493597A (en) | 2018-09-04 |
| CN108493597B CN108493597B (en) | 2020-02-21 |
Family
ID=63319460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810242556.XA Active CN108493597B (en) | 2018-03-21 | 2018-03-21 | Millimeter wave antenna based on surface plasmon polariton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493597B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888484A (en) * | 2019-01-30 | 2019-06-14 | 上海交通大学 | High efficiency end-on-fire antenna based on SSPPs structure |
| CN110380217A (en) * | 2019-07-26 | 2019-10-25 | 南京邮电大学 | High-gain end-on-fire antenna based on artificial surface plasmon |
| CN112867410A (en) * | 2018-10-19 | 2021-05-28 | 新加坡国立大学 | Radio wave limiting of metamaterial fabrics for wireless sensor networking |
| CN113193351A (en) * | 2021-04-30 | 2021-07-30 | 南京邮电大学 | Artificial surface plasmon broadband millimeter wave end-fire antenna |
| CN113964540A (en) * | 2021-10-27 | 2022-01-21 | 南京航空航天大学 | Device and method for regulating and controlling moire effect artificial surface plasmon dispersion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633560A (en) * | 2015-12-29 | 2016-06-01 | 东南大学 | Subwavelength metal groove structure periodic leaky-wave antenna based on surface impedance |
| CN107464994A (en) * | 2017-07-17 | 2017-12-12 | 北京交通大学 | A kind of leaky-wave antenna of quasi- surface plasma excimer transmission line feed |
-
2018
- 2018-03-21 CN CN201810242556.XA patent/CN108493597B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633560A (en) * | 2015-12-29 | 2016-06-01 | 东南大学 | Subwavelength metal groove structure periodic leaky-wave antenna based on surface impedance |
| CN107464994A (en) * | 2017-07-17 | 2017-12-12 | 北京交通大学 | A kind of leaky-wave antenna of quasi- surface plasma excimer transmission line feed |
Non-Patent Citations (1)
| Title |
|---|
| JIA YUAN YIN等: "Direct Radiations of Surface Plasmon Polariton Waves by Gradient Groove Depth and Flaring Metal Structure", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112867410A (en) * | 2018-10-19 | 2021-05-28 | 新加坡国立大学 | Radio wave limiting of metamaterial fabrics for wireless sensor networking |
| US12015197B2 (en) | 2018-10-19 | 2024-06-18 | National University Of Singapore | Radio-wave confinement on metamaterial textiles for wireless sensor networking |
| CN109888484A (en) * | 2019-01-30 | 2019-06-14 | 上海交通大学 | High efficiency end-on-fire antenna based on SSPPs structure |
| CN110380217A (en) * | 2019-07-26 | 2019-10-25 | 南京邮电大学 | High-gain end-on-fire antenna based on artificial surface plasmon |
| CN113193351A (en) * | 2021-04-30 | 2021-07-30 | 南京邮电大学 | Artificial surface plasmon broadband millimeter wave end-fire antenna |
| CN113193351B (en) * | 2021-04-30 | 2022-04-05 | 南京邮电大学 | Artificial surface plasmon broadband millimeter wave end-fire antenna |
| CN113964540A (en) * | 2021-10-27 | 2022-01-21 | 南京航空航天大学 | Device and method for regulating and controlling moire effect artificial surface plasmon dispersion |
| CN113964540B (en) * | 2021-10-27 | 2022-09-30 | 南京航空航天大学 | Device and method for regulating and controlling moire effect artificial surface plasmon dispersion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108493597B (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108493597A (en) | A kind of millimeter wave antenna based on surface plasma excimer | |
| Li et al. | A Koch-like sided fractal bow-tie dipole antenna | |
| CN105261841A (en) | Quasi-surface plasmon-based leaky-wave antenna | |
| Cao et al. | A millimeter-wave spoof surface plasmon polaritons-fed microstrip patch antenna array | |
| CN105576380A (en) | Broadband, high-gain and double-slot Vivaldi antenna | |
| Chi et al. | CRLH Leaky Wave Antenna Based on ACPS Technology With 180$^{\circ} $ Horizontal Plane Scanning Capability | |
| Cao et al. | Spoof surface plasmon polaritons fed frequency-scanning open-loop antenna arrays | |
| CN212182535U (en) | Novel butterfly-shaped slotted broadband terahertz antenna | |
| Zhang et al. | Circularly polarized endfire antenna based on sequentially rotated phase-transforming corrugated Goubau lines | |
| Bemani et al. | A novel wide-band microstrip Yagi-Uda array antenna for WLAN applications | |
| Liu et al. | A SIW-Based vivaldi array antenna for 5G wireless communication systems | |
| Wang et al. | A leaky-wave magnetoelectric antenna with endfire radiation for millimeter-wave communications | |
| Fu et al. | A Flexible Millimeter-Wave Endfire Antenna Based on Spoof Surface Plasmon Polaritons | |
| CN212209748U (en) | Novel millimeter wave low-profile high-gain differential horn antenna | |
| Liu et al. | A new kind of circularly polarized leaky-wave antenna based on corrugated substrate integrated waveguide | |
| Wang et al. | A Dual-Band Leaky-Wave Antenna Fed by Dual-Mode-Composite Waveguide for Microwave and Millimeter-Wave Applications | |
| Chaudhari et al. | Compact Printed Quasi-Yagi Antenna with Enhanced Bandwidth for Wideband Applications | |
| Wang et al. | Small-size CPW-fed Quasi-Yagi antenna with round-ended bow-tie CPW-to-slotline transition | |
| Zheng et al. | A multimode wideband dual-polarized antenna based on stub-loaded dipoles | |
| Satyanarayana et al. | A Wideband Quasi-Yagi Antenna Array at 24–28 GHz for 5G mmWave Mobile Terminals | |
| Lv et al. | Wideband dual-polarized Vivaldi antenna with gain enhancement | |
| Bhaskar et al. | SIW Cavity-Backed Pentagonal Slot Antenna For X-Band Applications | |
| Zheng et al. | A Spoof Surface Plasmon Polariton Antenna Feeding with Horn | |
| CN218569220U (en) | Vivaldi antenna applied to antenna test system | |
| Huang et al. | An Endfire Antenna Based on Antipodal Symmetric Spoof Surface Plasmon Polaritons |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |