CN106329102A - Novel LTCC interdigital antenna - Google Patents
Novel LTCC interdigital antenna Download PDFInfo
- Publication number
- CN106329102A CN106329102A CN201610794086.9A CN201610794086A CN106329102A CN 106329102 A CN106329102 A CN 106329102A CN 201610794086 A CN201610794086 A CN 201610794086A CN 106329102 A CN106329102 A CN 106329102A
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- Prior art keywords
- strip metal
- length
- coupling systems
- antenna
- line
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention relates to an LTCC interdigital antenna. The main body of the antenna is a ceramic body including three layers of ceramics substrates, a signal input end is printed on a second ceramic substrate, a left connecting end and a right connecting end are respectively connected with a first coupling assembling line and a second coupling assembling line which are printed on a third ceramic substrate, the input end is connected with the first coupling assembling line through a hole column, the left connecting end and the right connecting end are connected through a wire, and the first coupling assembling line and the second coupling assembling line are coupled to each other after signals are input so that signal radiation is realized. The LTCC interdigital antenna is advantaged by low lows, good radiation characteristic, low cost, small size, easy manufacture, and convenient integration etc.
Description
Technical field
The present invention relates to field of antenna, particularly relate to a kind of simple in construction, the interdigital antenna of LTCC that bandwidth range is big.
Background technology
Currently, wireless communication technology high speed development, the scope of business constantly expands, and the demand of wireless product is increased rapidly by people
Long, antenna just plays important role in these product circuits, and obtains continuous progress along with the development of communication technology.
New communication system requirements development is a kind of can extract and the new technique of detecting signal in specific frequency band, and this new technique
Development has further speeded up the research and development of antenna technology.
LTCC technology is in the new material technology of nineteen eighty-two Hughes Electronics's exploitation, is that low-temperature sintered ceramics powder is made thickness
Degree accurately and also the green band of densification, green band utilizes the techniques such as laser boring, micropore slip casting, accurate conductor paste printing
Make required circuitous pattern, and by multiple passive components (such as low capacitance electric capacity, resistance, wave filter, impedance transducer, misfortune
Clutch etc.) imbed in multi-layer ceramics tomb plate, then overlap together, internal and external electrode can use the metals such as silver, copper, gold respectively,
Sinter at 900 DEG C, make the non-interfering high-density circuit of three dimensions, it is possible to make the three-dimensional circuit base of built-in passive element
Plate, can mount Ic and active device on its surface, makes passive/active integrated functional module, can be little by circuit further
Type and densification, be particularly suitable for high frequency communications assembly.
LTCC antenna may be used for WLAN, bluetooth, satellite television and PHS, has low insertion loss, highly attenuating and small size
SMD chip designs, and reduces complexity instruction work, simplifies the advantages such as circuit, but existing LTCC antenna exists passband frequency range
Little, structure is complicated, the shortcomings such as conforming product rate is low.
Summary of the invention
Present invention aim to address that antenna passband frequency range is little, structure is complicated, the problems such as conforming product rate is low.
Concrete, the invention provides a kind of interdigital antenna of LTCC, including the ceramic body being made up of three layers of ceramic substrate；Print
Brush signal input part on described ceramic body second layer ceramic substrate；It is printed on described ceramic body third layer ceramic substrate
First coupling systems line and the second coupling systems line；It is printed on the left connection end of described surface of ceramic body and right connection end, described left company
Connecing end to be connected with described first coupling systems line, described right connection end is connected with described second coupling systems line；
Described input is connected by Kong Zhu with described first coupling systems line；
Described left connection end is connected by wire with the described right end that is connected.
Further, described ceramic body ground floor ceramic substrate is mark layer, be printed with as direction signs rectangle
Pattern.
Further, described ceramic body material is FerroA6 or DuPont 901.
Further, described first coupling systems line includes 2～5 strip metal lines different in size, described second coupling
Group line includes 2～5 strip metal lines different in size；
Described strip metal wire material uses silver or copper, and length, width are different；
The strip metal line of described first coupling systems line and the second coupling systems line is uniformly distributed in described third layer ceramic base
The two ends of sheet, position is relative, and two relative strip metal lines do not connect.
Further, described left connection end and right connection end are the silver layer being printed on surface of ceramic body, and silver thickness is
0.01mm。
Further, described signal input part is rectangular metal sheet.
Preferably, strip metal wire material is silver, and described first coupling systems line includes four strip metal lines, first band
Shape metal line-width is 0.2mm, a length of 1.1mm, and second strip metal line width is 0.4mm, a length of 1.4mm, the 3rd
Root strip metal line width is 0.4mm, a length of 0.1mm, and the 4th strip metal line width is 0.4mm, a length of 2.0mm；
Described second coupling systems line includes four strip metal lines, and first strip metal line width is 0.2mm, a length of
0.1mm, second strip metal line width is 0.4mm, a length of 0.1mm, and the 3rd strip metal line width is 0.4mm, long
Degree is 2.2mm, and the 4th strip metal line width is 0.4mm, a length of 0.1mm.
Preferably, strip metal wire material is copper, and described first coupling systems line includes four strip metal lines, first band
Shape metal line-width is 0.2mm, a length of 1.2mm, and second strip metal line width is 0.4mm, a length of 1.5mm, the 3rd
Root strip metal line width is 0.4mm, a length of 0.1mm, and the 4th wires width is 0.4mm, a length of 2.2mm；
Described second coupling systems line includes four strip metal lines, and first strip metal line width is 0.2mm, a length of
0.1mm, second strip metal line width is 0.4mm, a length of 0.1mm, and the 3rd strip metal line width is 0.4mm, long
Degree is 2.3mm, and the 4th wires width is 0.4mm, a length of 0.1mm.
The interdigital antenna of LTCC of the present invention, signal inputs from input, by the first coupling systems line and the second coupling systems line
Intercouple, it is achieved signal radiates, and strip metal distance between centers of tracks and physical length determine the frequency of antenna.The antenna of the present invention
Having broader bandwidth compared with the similar antenna under same size, pattern is simple, and conforming product rate is higher than 90%, is suitable for large quantities of
Amount produces, and it is low to have loss, and radiation characteristic is good, low cost, and size is little, it is easy to make, it is simple to the advantage such as integrated.
Accompanying drawing explanation
Accompanying drawing is only used for illustrating the purpose of specific embodiment, and is not considered as limitation of the present invention, at whole accompanying drawing
In, identical reference marks represents identical parts.
Fig. 1 is the structural representation of the present invention interdigital antenna of novel LTCC；
Fig. 2 is the present invention first, second coupling systems and left and right connection end structure schematic diagram；
Fig. 3 is the novel LTCC of the present invention interdigital antenna simulation curve.
In figure: 1-ceramic body, 2-rectangular patterns, 3-input, 4-the first coupling systems line, 5-the second coupling systems line,
6-left connection end, 7-right connection end.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
The present embodiment is with mid frequency 2.45GHz, and as a example by the antenna of bandwidth 0.1GHz, detailed design includes two schemes.
Scheme one: as it is shown in figure 1, ceramic body 1 includes three layers of ceramic substrate, material selection FerroA6.Ground floor ceramic base
Sheet is mark layer, be printed with as direction signs rectangular patterns 2.Second layer ceramic substrate printing rectangular metal sheet, for letter
Number input 3.Print the first coupling systems line 4 and the second coupling systems line 5 on third layer ceramic substrate, constitute interdigital coupling.
First coupling systems line 4 includes four strip metal lines, and material is silver, as in figure 2 it is shown, first banding from left to right
Metal line-width is 0.2mm, a length of 1.1mm, and second strip metal line width is 0.4mm, a length of 1.4mm, the 3rd
Strip metal line width is 0.4mm, a length of 0.1mm, and the 4th strip metal line width is 0.4mm, a length of 2.0mm；The
Two coupling systems lines 5 include four strip metal lines, and material is silver, and first strip metal line width is 0.2mm from left to right, long
Degree is 0.1mm, and second strip metal line width is 0.4mm, a length of 0.1mm, and the 3rd strip metal line width is
0.4mm, a length of 2.2mm, a 4th strip metal line width is 0.4mm, a length of 0.1mm.As in figure 2 it is shown, from left to right,
Four strip metal lines of the first coupling systems line 4 and four strip metal lines of the second coupling systems line 5 are positioned at third layer ceramic base
The two ends of sheet, are uniformly distributed, and position is relative, and two relative strip metal lines do not connect, and the equal length of two ends metal wire, width
Degree difference, constitutes interdigital staggered.
Left connection end 6 and right connection end 7 are two electrodes, respectively with the first coupling systems line 4 and the second coupling systems line 5 same
End, for being printed on the silver layer of surface of ceramic body, thickness of electrode is 0.01mm, and left connection end 6 and right connection end 7 wire connect,
It is easy to transmit signal, and all ground connection, to form signal circuit.First coupling systems line 4 left end is connected with the left end 6 that is connected, and second
Coupling systems line 5 right-hand member is connected with the right end 7 that is connected, and is used for inputting a signal into strip metal line.
Kong Zhu, between second layer ceramic substrate and third layer ceramic substrate, is used for connecting input 3 and couples with first
Group line 4.
During work, signal inputs from input 3, is transferred to the first coupling systems line 4 and left connection end 6 through Kong Zhu, then passes through
Steel plate transmission, to right connection end 7 and the second coupling systems line 5, is intercoupled by the first coupling systems line 4 and the second coupling systems line 5,
Realizing signal radiation, strip metal distance between centers of tracks and physical length determine frequency and the bandwidth of antenna.
Scheme two: as it is shown in figure 1, ceramic body 1 includes three layers of ceramic substrate, material selection DuPont901.Ground floor pottery
Printing rectangular patterns 2 on substrate, material is metal, acts primarily as the effect of direction signs, ground floor ceramic substrate and rectangular patterns 2
It is combined as mark layer.Second layer ceramic substrate printing rectangular metal sheet, for the input 3 of signal.Print on third layer ceramic substrate
Brush the first coupling systems line 4 and the second coupling systems line 5, constitute interdigital coupling.
First coupling systems line 4 includes four strip metal lines, and material is copper, and first strip metal line width is 0.2mm,
A length of 1.2mm, second strip metal line width is 0.4mm, a length of 1.5mm, and the 3rd strip metal line width is
0.4mm, a length of 0.1mm, the 4th wires width is 0.4mm, a length of 2.2mm；Second coupling systems line 5 includes four bands
Shape metal wire, material is copper, and first strip metal line width is 0.2mm, a length of 0.1mm, second strip metal live width
Degree is 0.4mm for three strip metal line widths of 0.4mm, a length of 0.1mm, the, a length of 2.3mm, the 4th wires width
Degree is 0.4mm, a length of 0.1mm.As in figure 2 it is shown, from left to right, four strip metal lines of the first coupling systems line 4 and second
Four strip metal lines of coupling systems line 5 are positioned at the two ends of third layer ceramic substrate, are uniformly distributed, and position is relative, relative two
Root strip metal line does not connect, and the equal length of two ends metal wire, width are different, constitutes interdigital staggered.
Left connection end 6 and right connection end 7 are two electrodes, respectively with the first coupling systems line 4 and the second coupling systems line 5 same
End, for being printed on the silver layer of surface of ceramic body, thickness of electrode is 0.01mm, and left connection end 6 and right connection end 7 wire connect,
It is easy to transmit signal, and all ground connection, to form signal circuit.First coupling systems line 4 left end is connected with the left end 6 that is connected, and second
Coupling systems line 5 right-hand member is connected with the right end 7 that is connected, and is used for inputting a signal into strip metal line.
Kong Zhu, between second layer ceramic substrate and third layer ceramic substrate, is used for connecting input 3 and couples with first
Group line 4.
During work, signal inputs from input 3, is transferred to the first coupling systems line 4 and left connection end 6 through Kong Zhu, then passes through
Steel plate transmission, to right connection end 7 and the second coupling systems line 5, is intercoupled by the first coupling systems line 4 and the second coupling systems line 5,
Realizing signal radiation, strip metal distance between centers of tracks and physical length determine frequency and the bandwidth of antenna.
Use HFSS software that the interdigital antenna performance of LTCC of above two scheme is tested, obtain as shown in Figure 3
Antenna performance curve.From in figure, the passband frequency range of this LTCC antenna is 2.4GHz～2.5GHz, passband frequency range
Greatly, return loss is little, is respectively less than-15B, and this explanation antenna has excellent performance.
The antenna of the present invention has broader bandwidth compared with the similar antenna under same size, and pattern is simple, and product closes
Lattice rate is higher than 90%, is suitable for producing in enormous quantities.
In sum, the interdigital antenna of LTCC of the present invention, signal inputs from input, by the first coupling systems line and second
Coupling systems line intercouples, it is achieved signal radiates, and strip metal distance between centers of tracks and physical length determine the frequency of antenna.This
Bright to have loss low, and radiation characteristic is good, low cost, and size is little, it is easy to make, it is simple to the advantage such as integrated.
Although being described in detail the present invention already in connection with preferred embodiment, but those skilled in the art should
When being understood by the case of present invention spirit and essence, various corrections are all to allow, and they both fall within this
Among bright scope of the claims.
Claims (8)
1. the interdigital antenna of LTCC, it is characterised in that including:
The ceramic body being made up of three layers of ceramic substrate；
It is printed on the signal input part on described ceramic body second layer ceramic substrate；
It is printed on the first coupling systems line on described ceramic body third layer ceramic substrate and the second coupling systems line；
It is printed on the left connection end of described surface of ceramic body and right connection end, described left connection end and described first coupling systems line phase
Connecting, described right connection end is connected with described second coupling systems line；
Described input is connected by Kong Zhu with described first coupling systems line；
Described left connection end is connected by wire with the described right end that is connected.
The interdigital antenna of LTCC the most according to claim 1, it is characterised in that described ceramic body ground floor ceramic substrate is mark
Note layer, be printed with as direction signs rectangular patterns.
The interdigital antenna of LTCC the most according to claim 1, it is characterised in that described ceramic body material be FerroA6 or
DuPont 901。
The interdigital antenna of LTCC the most according to claim 1, it is characterised in that described first coupling systems line includes 2～5 root lengths
The short strip metal line differed, described second coupling systems line includes 2～5 strip metal lines different in size；
Described strip metal wire material uses silver or copper, and length, width are different；
The strip metal line of described first coupling systems line and the second coupling systems line is uniformly distributed in the two of described 3rd layer of ceramic substrate
End, position is relative, and two relative strip metal lines do not connect.
The interdigital antenna of LTCC the most according to claim 1, it is characterised in that described left connection end and right connection end are printing
At the silver layer of surface of ceramic body, silver thickness is 0.01mm.
The interdigital antenna of LTCC the most according to claim 1, it is characterised in that described signal input part is rectangular metal sheet.
7. according to the interdigital antenna of the LTCC described in claim 1 or 4, it is characterised in that strip metal wire material is silver, described the
One coupling systems line includes that four strip metal lines, first strip metal line width are 0.2mm, a length of 1.1mm, second band
Shape metal line-width is 0.4mm, a length of 1.4mm, and the 3rd strip metal line width is 0.4mm, a length of 0.1mm, the 4th
Root strip metal line width is 0.4mm, a length of 2.0mm；
Described second coupling systems line includes four strip metal lines, and first strip metal line width is 0.2mm, a length of
0.1mm, second strip metal line width is 0.4mm, a length of 0.1mm, and the 3rd strip metal line width is 0.4mm, long
Degree is 2.2mm, and the 4th strip metal line width is 0.4mm, a length of 0.1mm.
8. according to the interdigital antenna of the LTCC described in claim 1 or 4, it is characterised in that strip metal wire material is copper, described
One coupling systems line includes that four strip metal lines, first strip metal line width are 0.2mm, a length of 1.2mm, second band
Shape metal line-width is 0.4mm, a length of 1.5mm, and the 3rd strip metal line width is 0.4mm, a length of 0.1mm, the 4th
Wires width is 0.4mm, a length of 2.2mm；
Described second coupling systems line includes four strip metal lines, and first strip metal line width is 0.2mm, a length of
0.1mm, second strip metal line width is 0.4mm, a length of 0.1mm, and the 3rd strip metal line width is 0.4mm, long
Degree is 2.3mm, and the 4th wires width is 0.4mm, a length of 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794086.9A CN106329102A (en) | 2016-08-31 | 2016-08-31 | Novel LTCC interdigital antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794086.9A CN106329102A (en) | 2016-08-31 | 2016-08-31 | Novel LTCC interdigital antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329102A true CN106329102A (en) | 2017-01-11 |
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ID=57786317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610794086.9A Pending CN106329102A (en) | 2016-08-31 | 2016-08-31 | Novel LTCC interdigital antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277367A (en) * | 2019-07-02 | 2019-09-24 | 苏州福唐智能科技有限公司 | A kind of ltcc substrate structure and its laser processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520629A (en) * | 2001-06-26 | 2004-08-11 | Multi-frequency magnetic dipole antenna structures and methods of reusing volume of antenna | |
| CN101034766A (en) * | 2007-04-10 | 2007-09-12 | 浙江正原电气股份有限公司 | Multi-layer porcelain antenna |
| CN203644944U (en) * | 2013-12-27 | 2014-06-11 | 禾邦电子(苏州)有限公司 | Broadband modular antenna and antenna assembly with same |
| CN204375934U (en) * | 2014-12-10 | 2015-06-03 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna |
| CN204614943U (en) * | 2015-02-11 | 2015-09-02 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna and the CPW plate adopting the ceramic PIFI antenna of this ceramic antenna to be suitable for it |
-
2016
- 2016-08-31 CN CN201610794086.9A patent/CN106329102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520629A (en) * | 2001-06-26 | 2004-08-11 | Multi-frequency magnetic dipole antenna structures and methods of reusing volume of antenna | |
| CN101034766A (en) * | 2007-04-10 | 2007-09-12 | 浙江正原电气股份有限公司 | Multi-layer porcelain antenna |
| CN203644944U (en) * | 2013-12-27 | 2014-06-11 | 禾邦电子(苏州)有限公司 | Broadband modular antenna and antenna assembly with same |
| CN204375934U (en) * | 2014-12-10 | 2015-06-03 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna |
| CN204614943U (en) * | 2015-02-11 | 2015-09-02 | 嘉兴佳利电子有限公司 | A kind of multi-layer porcelain antenna and the CPW plate adopting the ceramic PIFI antenna of this ceramic antenna to be suitable for it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277367A (en) * | 2019-07-02 | 2019-09-24 | 苏州福唐智能科技有限公司 | A kind of ltcc substrate structure and its laser processing |
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Application publication date: 20170111 |