CN105896042A - Slot antenna of metal via hole stepped-impedance - Google Patents
Slot antenna of metal via hole stepped-impedance Download PDFInfo
- Publication number
- CN105896042A CN105896042A CN201610217417.2A CN201610217417A CN105896042A CN 105896042 A CN105896042 A CN 105896042A CN 201610217417 A CN201610217417 A CN 201610217417A CN 105896042 A CN105896042 A CN 105896042A
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- Prior art keywords
- rabbet joint
- line
- frequency
- antenna
- impedance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- Waveguide Aerials (AREA)
Abstract
A slot antenna of metal via hole stepped-impedance relates to a slot antenna, and comprises a dielectric substrate (1), a metal ground (2) and a radiation slot (3) which are arranged on the dielectric substrate (1), and a micro-strip feeder line (4). The radiation slot (3) is arranged on the metal ground (2), and the two ends of the radiation slot (3) are in short circuit. Two rows of metallization via holes (7) at the middle part of the radiation slot (3) are in array arrangement to form a low-resistance slot (8), and the rest part of the radiation slot (3) is a high-resistance slot (9). One end of the micro-strip feeder line (4) is an antenna port (10), and the other end is in open circuit, spans the high-resistance slot (9) and extends a certain length. The antenna is in multi-frequency band work, enables the size and the shelter to be reduced and the isolation to be improved, and restrains the cross polarization.
Description
Technical field
The present invention relates to a kind of slot antenna, the slot antenna of a kind of metallic vias Stepped Impedance.
Background technology
Slot antenna is the antithesis antenna of element antenna, has a wide range of applications.But, common slot antenna not only spoke
Penetrate the length of the line of rabbet joint itself and to have 1/2nd wavelength, and radiate and also need to bigger Metal ground around the line of rabbet joint and amass, logical
Often length 1/2nd wavelength bigger than the length of the line of rabbet joint on metal ground, the width big 1/2nd of the width ratio line of rabbet joint on metal ground
Wavelength.Bigger metal ground can make slot antenna be not suitable for multiple-input and multiple-output (MIMO) application, causes antenna
Cross polarization is deteriorated, and these all will cause the decline of spectrum efficiency and channel capacity.The impedance of the line of rabbet joint simultaneously is very big, also makes
The impedance matching obtaining slot antenna feeding transmission line is relatively difficult.The development of modern communications simultaneously also requires that antenna can be with multifrequency
Band work and two frequency bands can regulate respectively.
Summary of the invention
Technical problem: the purpose of the present invention is to propose to the slot antenna of a kind of metallic vias Stepped Impedance, this antenna is possible not only to
There is multiple working band, and multiple frequency band can regulate respectively；This antenna can reduce length and the metal of the radiation line of rabbet joint
The area on ground, and there is the cross-polarized effect of suppression.
Technical scheme: the slot antenna of the metallic vias Stepped Impedance of the present invention includes medium substrate, is arranged on medium substrate
On metal ground and radiation the line of rabbet joint, microstrip feed line；The one side of medium substrate is metal ground, and the another side of medium substrate is micro-
The conduction band of ribbon feeder；Metal has the radiation line of rabbet joint on the ground, and the shape of the radiation line of rabbet joint is rectangle, and the radiation line of rabbet joint is positioned at metal ground
Center；Two terminal shortcircuits of the radiation line of rabbet joint；At radiation line of rabbet joint mid portion, two edges of its line of rabbet joint, there are two row's metallization
Arrays of vias so that the characteristic impedance step-down of radiation line of rabbet joint mid portion, forms the low-resistance line of rabbet joint；Its remaining part of the radiation line of rabbet joint
Dividing is the high resistant line of rabbet joint, and the high resistant line of rabbet joint constitutes the Stepped Impedance radiation line of rabbet joint together with the low-resistance line of rabbet joint, produces a frequency relatively low
Low frequency operation frequency band and the higher high-frequency work frequency band of a frequency；Metallization via passes through medium substrate, one and metal
Ground is connected, and other end is at the another side of medium substrate；Also it is the ground plane of described microstrip feed line metal, microstrip feed line
One end be the port of antenna, the other end of the conduction band of microstrip feed line strides across the high resistant line of rabbet joint and stretches a segment length to terminal,
The open-end of microstrip feed line；The conduction band of microstrip feed line has two parts to constitute, Part I conduction band be from the port of antenna to
It has just crossed over the position of the high resistant line of rabbet joint, and the remainder of the conduction band of microstrip feed line is Part II conduction band.
Change the thickness of medium substrate, pcrmeability and dielectric constant, thus it is possible to vary the characteristic resistance of the high resistant line of rabbet joint and the low-resistance line of rabbet joint
Anti-, change the height impedance ratio of the Stepped Impedance radiation line of rabbet joint, and then change the low frequency operation frequency band of antenna operating frequency and
The operating frequency of high-frequency work frequency band.
Change the length of the low-resistance line of rabbet joint, low-resistance line of rabbet joint position in the radiation line of rabbet joint, the electrical length of the radiation line of rabbet joint can be regulated,
To realize antenna miniaturization in various degree, it is also possible to change operating frequency and the high-frequency work of the low frequency operation frequency band of antenna
The operating frequency of frequency band.
Change the length and width of Part II conduction band, thus it is possible to vary the operating frequency of antenna, the width of working band and spoke
Penetrate the electrical length of the line of rabbet joint.
In metallization arrays of vias, change the spacing of adjacent metal via, the characteristic impedance of the low-resistance line of rabbet joint can be regulated,
Change the height impedance ratio of the Stepped Impedance radiation line of rabbet joint, and then change operating frequency and the high frequency of the low frequency operation frequency band of antenna
The operating frequency of working band.
Change the width of the radiation line of rabbet joint, the low-resistance line of rabbet joint and the characteristic impedance of the high resistant line of rabbet joint can be regulated, change Stepped Impedance spoke
Penetrate the height impedance ratio of the line of rabbet joint, and then change operating frequency and the work of high-frequency work frequency band of the low frequency operation frequency band of antenna
Frequency.
In metallization arrays of vias, the spacing of adjacent metal via is less than 1/10th wavelength.
The operating frequency of the low frequency operation frequency band of the slot antenna of metallic vias Stepped Impedance and the work of high-frequency work frequency band
Frequency is mainly determined by the resonant frequency of the radiation line of rabbet joint, but the size on metal ground, microstrip feed line conduction band are at the radiation line of rabbet joint
The operating frequency of antenna and matching degree can also be adjusted by position, the length and width of Part II conduction band.Due to
The radiation line of rabbet joint existing low-resistance line of rabbet joint has again the high resistant line of rabbet joint, constitutes the radiation line of rabbet joint of Stepped Impedance, not only makes antenna small-sized
Change, reduce cross polarization, also reduce the size on metal ground, but also so that antenna has multiple working band,
And change the low-resistance line of rabbet joint and the relative length of the high resistant line of rabbet joint and impedance, the position of two working bands can be adjusted respectively.
Beneficial effect: the slot antenna of the metallic vias Stepped Impedance of the present invention provides the benefit that, this antenna can reduce
The electric size of whole antenna, realizing miniaturization, this antenna has been possible not only to multiple frequency band simultaneously, and multiple frequency band is permissible
Regulate respectively, also there is the cross polarization effect of suppression antenna.
Accompanying drawing explanation
Fig. 1 is the slot antenna structural representation of metallic vias Stepped Impedance
Figure has: medium substrate 1, metal ground 2, the radiation line of rabbet joint 3, microstrip feed line 4, conduction band 5, two ends 6, metal
Change via 7, the low-resistance line of rabbet joint 8, the high resistant line of rabbet joint 9, port 10, Part I conduction band 11 and Part II conduction band 12.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment of the present invention is: the slot antenna of metallic vias Stepped Impedance includes medium substrate 1, arranges
Metal ground 2 on medium substrate 1 and the radiation line of rabbet joint 3, microstrip feed line 4；The one side of medium substrate 1 is metal ground 2,
The another side of medium substrate 1 is the conduction band 5 of microstrip feed line 4；The radiation line of rabbet joint 3 is had on metal ground 2, the radiation line of rabbet joint 3
Shape is rectangle, and the radiation line of rabbet joint 3 is positioned at the center on metal ground 2；Two ends 6 short circuit of the radiation line of rabbet joint 3；At the radiation line of rabbet joint
3 mid portions, two edges of its line of rabbet joint, there are two rows to metallize via 7 array so that the radiation line of rabbet joint 3 mid portion
Characteristic impedance step-down, formed the low-resistance line of rabbet joint 8；The remainder of the radiation line of rabbet joint 7 is the high resistant line of rabbet joint 9, the high resistant line of rabbet joint 9
Constitute the Stepped Impedance radiation line of rabbet joint 3 together with the low-resistance line of rabbet joint 8, produce a relatively low low frequency operation frequency band of frequency and one
The high-frequency work frequency band that frequency is higher；Metallization via 7 passes through medium substrate 1, and one is connected with metal ground 2, another
Head is at the another side of medium substrate 1；Metal ground 2 is also the ground plane of described microstrip feed line 4, the one of microstrip feed line 4
End is the port 10 of antenna, and the other end of the conduction band 5 of microstrip feed line 4 strides across the high resistant line of rabbet joint 9 and stretches a segment length to end
End, the open-end of microstrip feed line 4；The conduction band 5 of microstrip feed line has two parts to constitute, Part I conduction band 11 be from
The port 10 of antenna has just crossed over the position of the high resistant line of rabbet joint 9 to it, and the remainder of the conduction band of microstrip feed line is second
Divide conduction band 12.
Change the thickness of medium substrate 1, pcrmeability and dielectric constant, thus it is possible to vary the high resistant line of rabbet joint 9 and the low-resistance line of rabbet joint 8
Characteristic impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, and then changes the work of the low frequency operation frequency band of antenna
Working frequency and the operating frequency of high-frequency work frequency band.
Change the length of the low-resistance line of rabbet joint 8, the low-resistance line of rabbet joint 8 position in the radiation line of rabbet joint 3, the radiation line of rabbet joint 3 can be regulated
Electrical length, to realize antenna miniaturization in various degree, it is also possible to change the operating frequency of the low frequency operation frequency band of antenna
Operating frequency with high-frequency work frequency band.
Change the length and width of Part II conduction band 12, thus it is possible to vary the operating frequency of antenna, the width of working band
Electrical length with the radiation line of rabbet joint 3.
In metallization via 7 array, change the spacing of adjacent metal via 7, the characteristic of the low-resistance line of rabbet joint 8 can be regulated
Impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, and then changes the work frequency of the low frequency operation frequency band of antenna
Rate and the operating frequency of high-frequency work frequency band.
Change the width of the radiation line of rabbet joint 3, the low-resistance line of rabbet joint 8 and the characteristic impedance of the high resistant line of rabbet joint 9 can be regulated, change step
The height impedance ratio of the impedance radiation line of rabbet joint 3, and then change operating frequency and the high-frequency work frequency of the low frequency operation frequency band of antenna
The operating frequency of band.
In metallization via 7 array, the spacing of adjacent metal via 7 is less than 1/10th wavelength.
The operating frequency of the low frequency operation frequency band of the slot antenna of metallic vias Stepped Impedance and the work of high-frequency work frequency band
Frequency is mainly determined by the resonant frequency of the radiation line of rabbet joint 3, but the metal ground size of 2, the conduction band 5 of microstrip feed line 4 exist
Radiate the position of the line of rabbet joint 3, the length and width of Part II conduction band 12 can also be to the operating frequency of antenna and coupling journey
Degree is adjusted.Owing to the radiation line of rabbet joint 3 existing low-resistance line of rabbet joint 8 has again the high resistant line of rabbet joint 9, constitute the radiation of Stepped Impedance
The line of rabbet joint 3, not only makes antenna miniaturization, reduces cross polarization, also reduces the size on metal ground 2, but also can
So that antenna has multiple working band, and change the low-resistance line of rabbet joint 8 and the relative length of the high resistant line of rabbet joint 9, position and resistance
Anti-, the position of two working bands can be adjusted respectively.In technique, the slot antenna of metallic vias Stepped Impedance both may be used
To use common printed circuit board (PCB) (PCB) technique, it would however also be possible to employ LTCC (LTCC) technique or CMOS,
The integrated circuit technologies such as Si substrate realize.Wherein metallization via 7 can be hollow metal through hole can also be solid metal
Hole, the shape of metal throuth hole can be circular, it is also possible to is square or other shapes.
In accordance with the above, the present invention can just be realized.
Claims (6)
1. the slot antenna of a metallic vias Stepped Impedance, it is characterised in that this antenna includes medium substrate (1), sets
Put metal ground (2) on medium substrate (1) and the radiation line of rabbet joint (3), microstrip feed line (4)；Medium substrate (1)
One side be metal ground (2), the another side of medium substrate (1) is the conduction band (5) of microstrip feed line (4)；Metal ground (2)
On have a radiation line of rabbet joint (3), the shape of the radiation line of rabbet joint (3) is rectangle, the radiation line of rabbet joint (3) with being positioned at metal (2)
Center；Two ends (6) short circuit of the radiation line of rabbet joint (3)；On the radiation line of rabbet joint (3) mid portion, two limits of its line of rabbet joint
Edge, has two rows to metallize via (7) array so that the characteristic impedance step-down of the radiation line of rabbet joint (3) mid portion, is formed
The low-resistance line of rabbet joint (8)；The remainder of the radiation line of rabbet joint (3) is the high resistant line of rabbet joint (9), the high resistant line of rabbet joint (9) and the low-resistance line of rabbet joint
(8) constitute the Stepped Impedance radiation line of rabbet joint (3) together, produce a relatively low low frequency operation frequency band of frequency and a frequency
Higher high-frequency work frequency band；Medium substrate (1) is passed through in metallization via (7), and one is connected with metal ground (2),
Other end is at the another side of medium substrate (1)；Metal ground (2) is also the ground plane of described microstrip feed line (4),
One end of microstrip feed line (4) is the port (10) of antenna, and the other end of the conduction band (5) of microstrip feed line (4) strides across height
The resistance line of rabbet joint (9) also stretches a segment length to terminal, the open-end of microstrip feed line (4)；The conduction band (5) of microstrip feed line
Having two parts to constitute, Part I conduction band (11) is that the port (10) from antenna has just crossed over the high resistant line of rabbet joint (9) to it
Position, the remainder of the conduction band of microstrip feed line is Part II conduction band (12).
The slot antenna of a kind of metallic vias Stepped Impedance the most according to claim 1, it is characterised in that change and be situated between
Thickness, pcrmeability and the dielectric constant of matter substrate (1), thus it is possible to vary the high resistant line of rabbet joint (9) and the low-resistance line of rabbet joint (8)
Characteristic impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3), and then changes the low frequency operation frequency band of antenna
Operating frequency and the operating frequency of high-frequency work frequency band.
The slot antenna of a kind of metallic vias Stepped Impedance the most according to claim 1, it is characterised in that change low
The length of the resistance line of rabbet joint (8), the low-resistance line of rabbet joint (8) position in the radiation line of rabbet joint (3), can regulate the radiation line of rabbet joint (3)
Electrical length, to realize antenna miniaturization in various degree, it is also possible to change the operating frequency of the low frequency operation frequency band of antenna
Operating frequency with high-frequency work frequency band.
The slot antenna of a kind of metallic vias Stepped Impedance the most according to claim 1, it is characterised in that change the
The length and width of two part conduction bands (12), thus it is possible to vary the operating frequency of antenna, the width of working band and radius
The electrical length of seam (3).
The slot antenna of a kind of metallic vias Stepped Impedance the most according to claim 1, it is characterised in that metallization
In via (7) array, change the spacing of adjacent metal via (7), the characteristic of the low-resistance line of rabbet joint (8) can be regulated
Impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3), and then changes the work of the low frequency operation frequency band of antenna
Working frequency and the operating frequency of high-frequency work frequency band.
The slot antenna of a kind of metallic vias Stepped Impedance the most according to claim 1, it is characterised in that change spoke
Penetrate the width of the line of rabbet joint (3), the low-resistance line of rabbet joint (8) and the characteristic impedance of the high resistant line of rabbet joint (9) can be regulated, change step
The height impedance ratio of the impedance radiation line of rabbet joint (3), and then change operating frequency and the high frequency work of the low frequency operation frequency band of antenna
Make the operating frequency of frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217417.2A CN105896042A (en) | 2016-04-08 | 2016-04-08 | Slot antenna of metal via hole stepped-impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217417.2A CN105896042A (en) | 2016-04-08 | 2016-04-08 | Slot antenna of metal via hole stepped-impedance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105896042A true CN105896042A (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610217417.2A Pending CN105896042A (en) | 2016-04-08 | 2016-04-08 | Slot antenna of metal via hole stepped-impedance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105896042A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355195A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | UHF RF dual-frequency-recognizing metal-resistance label antenna |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
| CN104393417A (en) * | 2014-11-28 | 2015-03-04 | 哈尔滨工业大学（威海） | Ultra-wide band dual-polarized antenna based on orthogonal electromagnetic sources |
-
2016
- 2016-04-08 CN CN201610217417.2A patent/CN105896042A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355195A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | UHF RF dual-frequency-recognizing metal-resistance label antenna |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
| CN104393417A (en) * | 2014-11-28 | 2015-03-04 | 哈尔滨工业大学（威海） | Ultra-wide band dual-polarized antenna based on orthogonal electromagnetic sources |
Non-Patent Citations (1)
| Title |
|---|
| SHUNLI LI .ET AL: ""Postwall Slotline and Its Application in Design of Short-Pulse Tapered Slot Antennas", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
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Application publication date: 20160824 |