CN108767440A - Micro-strip paster antenna based on step impedance resonator - Google Patents
Micro-strip paster antenna based on step impedance resonator Download PDFInfo
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- CN108767440A CN108767440A CN201810518629.3A CN201810518629A CN108767440A CN 108767440 A CN108767440 A CN 108767440A CN 201810518629 A CN201810518629 A CN 201810518629A CN 108767440 A CN108767440 A CN 108767440A
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- impedance resonator
- step impedance
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- resonator
- strip paster
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
-
- 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
Abstract
A kind of micro-strip paster antenna based on step impedance resonator, including dielectric substrate, the top layer metallic layer that is mutually touched with the upper surface of dielectric substrate and the bottom metal layer mutually touched with the lower surface of dielectric substrate；Antenna structure is provided on top layer metallic layer, antenna structure includes microband paste, step impedance resonator component, and step impedance resonator component is located at the side of microband paste, metal throuth hole is provided on step impedance resonator component；Coaxial feeder is provided on dielectric substrate, bottom metal layer is connect by coaxial feeder with the first step impedance resonator, and is coupled to the second step impedance resonator and microband paste by the first step impedance resonator.The present invention overcomes conventional microsthp patch antennas bandwidth is relatively narrow, and have the characteristics that more higher hamonic waves, microwave is integrated, has important application value in miniaturized circuit, and expand application of the micro-strip paster antenna based on step impedance resonator in modern microwave millimetre-wave circuit is integrated.
Description
Technical field
The present invention relates to a kind of micro-strip paster antenna more particularly to a kind of microband paste days based on step impedance resonator
Line belongs to microwave technical field.
Background technology
With the research and development of wireless communication technique, the compact and miniaturization structure of antenna, high-performance and Yi Yuping
Circuit structure integrated structure in face receives favor.Due to micro-strip paster antenna can be easily integrated in as filter,
During amplifier, resonator and frequency mixer etc. be many active and passive circuit, so in a communications system, micro-strip paster antenna very by
It welcomes.However, micro-strip paster antenna is also typically present several intrinsic disadvantages：One be because high q-factor resonance characteristic and band
The narrow bandwidth come；The other is in the presence of the High-order Harmonic Generation that system effectiveness can be made to reduce.So how to widen microband paste day
The bandwidth of operation of line and the higher hamonic wave for eliminating system become a highly important job.
Micro-strip paster antenna based on uniform impedance resonator is carried out on the basis of traditional micro-strip paster antenna
Effective to improve, research is the most deep, however since the condition of resonance of uniform impedance resonator depends solely on transmission line
Length, therefore design freedom is relatively low, this feature of uniform impedance resonator makes bandwidth that antenna is broadening and humorous to high order
The rejection ability of wave is usually not so good as the microband paste day based on step impedance resonator under same working frequency than relatively limited
Line.
In conclusion how the broadening micro-strip paster antenna based on step impedance resonator bandwidth of operation and reinforce pair
The ability of its limitation of high harmonics, with regard to those skilled in the art's urgent problem to be solved.
Invention content
The purpose of the present invention is to solve the drawbacks described above of the prior art, it is proposed that one kind being based on step impedance resonator
Micro-strip paster antenna, the micro-strip paster antenna of the step impedance resonator is in addition to, body simple in structure with micro-strip paster antenna
Product is small, outside the characteristics of being easily integrated, also the characteristic with broader bandwidth of operation and stronger harmonics restraint so that in microwave
It is integrated, in miniaturized circuit have important application value.
Technical solution of the invention is：
A kind of micro-strip paster antenna based on step impedance resonator, including dielectric substrate, touch with the upper surface of dielectric substrate
The top layer metallic layer that connects and the bottom metal layer mutually touched with the lower surface of dielectric substrate；It is provided on the top layer metallic layer
Antenna structure, antenna structure include microband paste, step impedance resonator component, and step impedance resonator component is located at micro-strip patch
The side of piece is provided with metal throuth hole on step impedance resonator component；Coaxial feeder, bottom are provided on the dielectric substrate
Layer metal layer is connect by coaxial feeder with the first step impedance resonator, and is coupled to by the first step impedance resonator
Second step impedance resonator and microband paste.
Preferably, the antenna structure is the projection and dielectric substrate of symmetrical structure and antenna structure on dielectric substrate
Central area coincides.
Preferably, the step impedance resonator component includes the first step impedance resonator and the second step impedance resonance
Device, the first step impedance resonator is arranged between the second step impedance resonator and microband paste, and the first Stepped Impedance is humorous
It shakes between device and microband paste and there is gap between the first step impedance resonator and the second step impedance resonator.
Preferably, first step impedance resonator and second step impedance resonator are 1/4 wave resonance
Device.
Preferably, the central area of first step impedance resonator is provided with protruding portion, the second step impedance resonance
The central area of device assembly is provided with recess, and protruding portion is adapted with recess.
Preferably, the bottom metal layer is connected by coaxial feeder with first step impedance resonator, institute
It states bottom metal layer and company is coupled with the second step impedance resonator and microband paste by coaxial feeder respectively with the gap
It connects.
Preferably, the first metal throuth hole is provided on first step impedance resonator, second Stepped Impedance is humorous
It shakes and is provided with the second metal throuth hole on device, it is straight that the first metal throuth hole, the second metal throuth hole and coaxial feeder are respectively positioned on same
On line.
Preferably, the coaxial feeder is between first metal throuth hole and second metal throuth hole, and same
Axis feed line and the first metal throuth hole are arranged on first step impedance resonator.
Preferably, the size of the bottom metal layer is consistent with the size of the dielectric substrate.
Micro-strip paster antenna provided by the invention based on step impedance resonator, technique effect are mainly manifested in：
Present invention optimizes traditional micro-strip paster antennas, and design structure is simple, and bandwidth of operation is big, and harmonic inhibition capability is strong,
Step impedance resonator is more suitably applied to the big width of modern microwave millimeter wave antenna compared with traditional uniform impedance resonator
The requirement of band and harmonics restraint.Meanwhile the structure makes antenna itself compacter, and under conditions of equal performance, antenna
Size realizes miniaturization, reduces processing cost, improves antenna gain.Conventional microsthp patch day relative to equivalent technology
Line, the antenna improve Antenna Operation bandwidth, and relative to the antenna based on uniform impedance resonator of equivalent technology, which obtains
Obtained stronger harmonics restraint.
Just attached drawing in conjunction with the embodiments below, the embodiment of the present invention is described in further detail, so that of the invention
Technical solution is more readily understood, grasps.
Description of the drawings
Fig. 1 is the three dimensional structure diagram of the present invention；
Fig. 2 is the three-dimensional dividing figure of the present invention；
Fig. 3 is the vertical view of the present invention；
Fig. 4 is the S parameter analogous diagram of the present invention；
Fig. 5 is the 3dB radiation bandwidth schematic diagrames of the present invention.
Wherein, 1- dielectric substrates, 2- top layer metallic layers, 3- bottom metal layers, the first step impedance resonators of 4-,
The second step impedance resonators of 5-, the first metal throuth holes of 6-, the second metal throuth holes of 7-, 8- protruding portions, 9- recesses, 10-
Coaxial feeder, 11- microband pastes.
Specific implementation mode
A kind of micro-strip paster antenna based on step impedance resonator, as shown in Figure 1 to Figure 3, including dielectric substrate 1, with
Top layer metallic layer 2 that the upper surface of dielectric substrate 1 mutually touches and the bottom metal layer mutually touched with the lower surface of dielectric substrate 1
3, in the present embodiment, the size of bottom metal layer 3 is consistent with the size of the dielectric substrate 1, and dielectric substrate 1 uses Rogers
5870 dielectric-slabs, dielectric constant 2.33, thickness are 1.57 millimeters.
Wherein, antenna structure is provided on top layer metallic layer 2, antenna structure includes microband paste 11, Stepped Impedance resonance
Device assembly, step impedance resonator component are located at the side of microband paste 11, metal are provided on step impedance resonator component
Through-hole；
Further, step impedance resonator component includes the first step impedance resonator 4 and the second step impedance resonator 5,
First step impedance resonator 4 is arranged between the second step impedance resonator 5 and microband paste 11, and the first Stepped Impedance is humorous
It shakes between device 4 and microband paste 11 and exists between the first step impedance resonator 4 and the second step impedance resonator 5 and stitch
Gap（It is not shown in figure）.In the present embodiment, the first step impedance resonator 4 and the second step impedance resonator 5 are 1/4 wave
Long resonator, and the size of 4 second step impedance resonator 5 of the first step impedance resonator is determined by working frequency range, and the
The central area of one step impedance resonator 4 is provided with protruding portion 8, and the central area of the second step impedance resonator 5 is provided with
Recess 9, protruding portion 8 are adapted with recess 9.
Further, coaxial feeder 10 is provided on dielectric substrate 1, bottom metal layer 3 passes through coaxial feeder 10
It is of coupled connections respectively with step impedance resonator component and microband paste 11.In particular：Bottom metal layer 3 passes through coaxial feed
Line 10 is connected with first step impedance resonator 4, and the bottom metal layer 3 is distinguished by coaxial feeder 10, gap
It is of coupled connections with the second step impedance resonator 5 and microband paste 11, i.e., bottom metal layer 3 passes through coaxial feeder and the first step
Electric impedance resonator 4 is connected, and by slot-coupled energy transmission to microband paste 11 and the second step impedance resonator 5,
Step impedance resonator component and microband paste 11 is encouraged to generate resonance, to achieve the purpose that widen the beamwidth of antenna, finally
Also the effect of broadening bandwidth is realized.
In addition, being provided with the first metal throuth hole 6 on the first step impedance resonator 4, set on the second step impedance resonator 5
It is equipped with the second metal throuth hole 7, the first metal throuth hole 6, the second metal throuth hole 7 and coaxial feeder 10 are respectively positioned on same straight line
On.Coaxial feeder 10 is between the first metal throuth hole 6 and the second metal throuth hole 7, and coaxial feeder 10 and the first metal
Through-hole 6 is arranged on first step impedance resonator 4.
In the inventive solutions, antenna structure is symmetrical structure, i.e., along the first metal throuth hole 6, coaxial feeder
10 and the second metal throuth hole 7 where straight line axisymmetricly, and projection of the antenna structure on dielectric substrate 1 and dielectric substrate 1
Central area coincide.
The present invention also emulates the return loss of the micro-strip paster antenna based on step impedance resonator, such as Fig. 4
Shown, the bandwidth of operation of microband paste 11 is 4.76GHz~5.45GHz, and altogether there are three working frequency range, centre frequency is
5.11GHz, relative bandwidth 13.5%.Fig. 5 is that the 3dB radiation bandwidths of the micro-strip paster antenna based on step impedance resonator show
It is intended to, we can see that the gain curve of antenna is consistent with S parameter simulation curve result from figure, in entire working frequency range
Gain effect is preferable.
It is one kind by 11 He of microband paste the invention discloses a kind of micro-strip paster antenna based on step impedance resonator
It is the first step impedance resonator 4 of 1/4 wavelength and the circuit structure that the second step impedance resonator 5 is constituted；Microband paste
11 are fed to antenna by coaxial feeder 10；On the first step impedance resonator 4 and the second step impedance resonator 5
Metal throuth hole is opened up, which can ensure that the micro-strip paster antenna size based on step impedance resonator is relatively small
In the case of, the actual emanations frequency of the micro-strip paster antenna based on step impedance resonator is reduced, is realized humorous based on Stepped Impedance
Shake device micro-strip paster antenna miniaturization；It simultaneously can using the first step impedance resonator 4 and the second step impedance resonator 5
So that the micro-strip paster antenna based on step impedance resonator is generated resonance in different frequency points, widens based on step impedance resonator
Micro-strip paster antenna bandwidth of operation；It is simple, of low cost that the present invention had both passed on conventional microsthp patch antennas manufacture craft
The characteristics of being easily integrated in circuit, and with humorous compared with the broader bandwidth of operation of conventional microsthp patch antennas and better high order
Wave inhibits.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and this
Field technology personnel can design alternative embodiment without departing from the scope of the appended claims.
Claims (9)
1. a kind of micro-strip paster antenna based on step impedance resonator, it is characterised in that：Including dielectric substrate and dielectric substrate
The top layer metallic layer that mutually touches of upper surface and the bottom metal layer that is mutually touched with the lower surface of dielectric substrate；The top layer gold
Belong to and be provided with antenna structure on layer, antenna structure includes microband paste, step impedance resonator component, step impedance resonator group
Part is located at the side of microband paste, and metal throuth hole is provided on step impedance resonator component；It is provided on the dielectric substrate
Coaxial feeder, bottom metal layer are connect by coaxial feeder with the first step impedance resonator, and are hindered by the first step
Antiresonance device is coupled to the second step impedance resonator and microband paste.
2. the micro-strip paster antenna according to claim 1 based on step impedance resonator, it is characterised in that：The antenna
Structure is that the central area of the projection and dielectric substrate of symmetrical structure and antenna structure on dielectric substrate coincides.
3. the micro-strip paster antenna according to claim 1 based on step impedance resonator, it is characterised in that：The step
Impedance resonance device assembly includes the first step impedance resonator and the second step impedance resonator, and the first step impedance resonator is set
It sets between the second step impedance resonator and microband paste, and between the first step impedance resonator and microband paste and
There is gap between one step impedance resonator and the second step impedance resonator.
4. the micro-strip paster antenna according to claim 3 based on step impedance resonator, it is characterised in that：Described first
Step impedance resonator and second step impedance resonator are 1/4 wave resonator.
5. the micro-strip paster antenna according to claim 3 based on step impedance resonator, it is characterised in that：Described first
The central area of step impedance resonator is provided with protruding portion, and the central area of the second step impedance resonator component is provided with recessed
Mouthful, protruding portion is adapted with recess.
6. the micro-strip paster antenna according to claim 3 based on step impedance resonator, it is characterised in that：The bottom
Metal layer is connected by coaxial feeder with first step impedance resonator, and the bottom metal layer passes through coaxial feed
Line is of coupled connections with the second step impedance resonator and microband paste respectively with the gap.
7. the micro-strip paster antenna according to claim 3 based on step impedance resonator, it is characterised in that：Described first
It is provided with the first metal throuth hole on step impedance resonator, it is logical that the second metal is provided on second step impedance resonator
Hole, the first metal throuth hole, the second metal throuth hole and coaxial feeder are respectively positioned on same straight line.
8. the micro-strip paster antenna according to claim 7 based on step impedance resonator, it is characterised in that：It is described coaxial
Feed line is between first metal throuth hole and second metal throuth hole, and coaxial feeder and the first metal throuth hole are equal
It is arranged on first step impedance resonator.
9. the micro-strip paster antenna according to claim 1 based on step impedance resonator, it is characterised in that：The bottom
The size of metal layer is consistent with the size of the dielectric substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518629.3A CN108767440A (en) | 2018-05-25 | 2018-05-25 | Micro-strip paster antenna based on step impedance resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518629.3A CN108767440A (en) | 2018-05-25 | 2018-05-25 | Micro-strip paster antenna based on step impedance resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767440A true CN108767440A (en) | 2018-11-06 |
Family
ID=64006321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810518629.3A Pending CN108767440A (en) | 2018-05-25 | 2018-05-25 | Micro-strip paster antenna based on step impedance resonator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904617A (en) * | 2019-01-25 | 2019-06-18 | 南京邮电大学 | Based on the frequency scanning leaky-wave antenna for loading high guarantor's transmission line that parasitic branch is formed |
| CN112582771A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency-tunable microstrip patch resonator loaded by non-contact variable capacitor |
| CN112582792A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency tunable microstrip patch antenna based on half-cut technology |
| CN112582772A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency-tunable microstrip patch resonator based on half-cut technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449379A (en) * | 2015-11-30 | 2016-03-30 | 华南理工大学 | Filtering antenna capable of restraining high frequency harmonic waves |
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2018
- 2018-05-25 CN CN201810518629.3A patent/CN108767440A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449379A (en) * | 2015-11-30 | 2016-03-30 | 华南理工大学 | Filtering antenna capable of restraining high frequency harmonic waves |
Non-Patent Citations (2)
| Title |
|---|
| JIN-DONG ZHANG等: "A Compact Microstrip-Fed Patch Antenna With Enhanced Bandwidth and Harmonic Suppression", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| WENJUN FAN等: "Design of Element for 5G Antenna Arrays with Step Impedance Resonator", 《2018 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904617A (en) * | 2019-01-25 | 2019-06-18 | 南京邮电大学 | Based on the frequency scanning leaky-wave antenna for loading high guarantor's transmission line that parasitic branch is formed |
| CN112582771A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency-tunable microstrip patch resonator loaded by non-contact variable capacitor |
| CN112582792A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency tunable microstrip patch antenna based on half-cut technology |
| CN112582772A (en) * | 2020-12-04 | 2021-03-30 | 南通大学 | Frequency-tunable microstrip patch resonator based on half-cut technology |
| CN112582771B (en) * | 2020-12-04 | 2021-12-24 | 南通大学 | Frequency-tunable microstrip patch resonator loaded by non-contact variable capacitor |
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Application publication date: 20181106 |
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