CN202839948U - Bonding-line antenna - Google Patents
Bonding-line antenna Download PDFInfo
- Publication number
- CN202839948U CN202839948U CN 201220144476 CN201220144476U CN202839948U CN 202839948 U CN202839948 U CN 202839948U CN 201220144476 CN201220144476 CN 201220144476 CN 201220144476 U CN201220144476 U CN 201220144476U CN 202839948 U CN202839948 U CN 202839948U
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- antenna
- bonding line
- bonding
- grounding metal
- line
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Abstract
The utility model discloses a bonding-line antenna, which is composed of a substrate, a grounding metal surface, a coplanar transmission line and a bonding line. A metal surface covers the upper surface of the substrate, the coplanar transmission line and the grounding metal surface are formed in an etched portion in one end of the metal surface, the bonding line is connected between the coplanar transmission line and the grounding metal surface, and a plane where the bonding line is positioned is vertical to the grounding metal surface. The bonding-line antenna of the utility model can be used for close-distance wireless transmission of millimeter wave signals, which enables the antenna to obtain suitable directional diagram and gain without increasing technological processes, and is relatively high in radiation efficiency.
Description
Technical field
The utility model relates to a kind of bonding line antenna, particularly is connected in bonding line between coplanar transmission and the grounding metal plane and realizes emission or reception to electromagnetic energy.
Background technology
Along with the surge of communication service data, ultra broadband Ultrahigh speed data transmission is arisen at the historic moment, and what accompany is that the frequency of signal transmission can be up to tens GHzs.Under so high frequency, for some key signal in the circuit, because the phase delay of wired connection existence and potential power dissipation concerns turn turtle.At this moment, wireless transmission becomes attractive scheme of dealing with problems, and antenna then is the necessary parts of realizing wireless transmission.
When signal frequency was very high, designing and producing antenna on the circuit substrate plane can cause radiation efficiency low because loss is high.For this reason, usually need to in addition special processing of substrate material, to reduce the wastage, improve antenna efficiency.Yet this processing but brings the trouble in the manufacturing, and then increases circuit cost.If change traditional thinking, antenna no longer is produced on the circuit substrate plane, but extends to the space, then solve simultaneously inefficiency and made complicated problem.The present invention just is being based on this thinking, utilize bonding line to serve as antenna, as long as the shape of bonding line, length etc. meet certain size, the coplanar transmission and the grounding metal plane that are aided with specific dimensions then can make the antenna pattern of bonding line antenna and the requirement that the gain index satisfies the near radio transmission again.
Summary of the invention
The purpose of this utility model is to utilize bonding line to serve as antenna, solve in the Ultrahigh speed data transmission system problem that when signal frequency reaches tens GHzs wire transmission exists phase delay and power loss, also can overcome the inefficiency that exists when adopting traditional substrate plane antenna or a difficult problem of making complexity simultaneously.
The technical solution that realizes the utility model purpose is: a kind of bonding line antenna is comprised of substrate, grounding metal plane, coplanar transmission and bonding line; Substrate upper surface is coated with metal covering, etches away the part metals face at this metal covering one end and forms coplanar transmission and grounding metal plane, and bonding line is connected between coplanar transmission and the grounding metal plane, and plane, bonding line place is vertical with grounding metal plane.
The utility model compared with prior art, its remarkable advantage: the designed bonding line antenna of the present invention can be used for the near radio transmission of millimeter-wave signal, by being extended to the space, bonding line need not the circuit substrate material is carried out special processing, can make antenna obtain suitable directional diagram and gain in the situation that do not increase the PROCESS FOR TREATMENT step, and have higher radiation efficiency.
Description of drawings
Fig. 1 is the structure chart of the utility model bonding line antenna, and a is front view, and b is vertical view.
Fig. 2 be bonding line antenna shown in Figure 1 when frequency is 60GHz-70GHz |
S 11| curve.
Fig. 3 is bonding line antenna shown in Figure 1 electromagnetic horizontal polarization field pattern when frequency is 63.5GHz.
Embodiment
The utility model is made of substrate material, bonding line, grounding metal plane and coplanar transmission.Bonding line is connected between the coplanar transmission and grounding metal plane on the substrate material, by shape and the length of design bonding line, is an all-wave loop antenna with its equivalence.This antenna has medium input resistance, symmetrical directional diagram and suitable directivity factor.The live width of design coplanar transmission and with the spacing of grounding metal plane, guarantee that the characteristic impedance of transmission line and the output impedance of front-end circuit mates, so that signal energy effectively is transferred on the antenna.The size of grounding metal plane designs according to the operating frequency of antenna, thereby guarantees antenna in the situation that have certain radiation efficiency, and the area of circuit can be not excessive yet.The span of bonding line and highly have specific size changes the operating frequency that these sizes can be adjusted antenna.Spacing between the width of coplanar transmission and this transmission line and the metal covering has specific size, and this size is relevant with the operating frequency of antenna, and is also relevant with electromagnetic property parameters and the physical dimension of substrate material.Bonding line has specific shape, changes antenna pattern and gain that shape can affect antenna.
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
In conjunction with Fig. 1, the present invention is made of substrate material 1, copper wire (or spun gold) bonding line 2, grounding metal plane 30 and coplanar transmission 31.The pattern of grounding metal plane and coplanar transmission all is produced on the same face 3 of substrate material.Reserve the metal covering of certain area at substrate material, in coplanar transmission of edge designs of a certain side of metal covering.According to the relative conductivity of substrate material (
ε r=2.2), relative permeability (
μ r=1), conductivity (σ=5.8 * 10 of thickness (0.254mm), surface conductor material
7) etc. electromagnetic property parameters and geometric parameter, in conjunction with the characteristic impedance computing formula of coplanar transmission obtain coplanar transmission holding wire width (0.4mm) and with the spacing (0.068mm) of grounding metal plane.According to operating frequency, calculate the length (2.47mm) of bonding line.Determine the span at bonding line two ends, an end of this bonding line is bonded on the centre position of coplanar transmission, the other end is then according to the bonding point of location positioning on grounding metal plane of reception antenna.Adjust bonding line to shape shown in Figure 1.
See also Fig. 2, its antenna for the present invention is between the 60GHz-70GHz in frequency
S 11Amplitude curve.When frequency is 63.7GHz, |
S 11| value be-27.38dB, show that signal energy reflection this moment is very little, main energy all passes through the alignment space radiation of bonding line sky.
See also Fig. 3, it is for bonding line antenna electromagnetic horizontal polarization field pattern when frequency is 63.7GHz of the present invention.As seen, the gain on maximum direction reaches 2.287dBi, can satisfy the requirement of near radio transmission.
Claims (2)
1. a bonding line antenna is characterized in that: be comprised of substrate (1), grounding metal plane (30), coplanar transmission (31) and bonding line (2); Substrate (1) upper surface is coated with metal covering, etch away the part metals face at this metal covering one end and form coplanar transmission (31) and grounding metal plane (30), bonding line (2) is connected between coplanar transmission (31) and the grounding metal plane (30), and bonding line (2) plane, place is vertical with grounding metal plane (30).
2. bonding line antenna according to claim 1 is characterized in that: described grounding metal plane (30) consists of by good conductor with coplanar transmission (31), and grounding metal plane (30) needs ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144476 CN202839948U (en) | 2012-04-05 | 2012-04-05 | Bonding-line antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144476 CN202839948U (en) | 2012-04-05 | 2012-04-05 | Bonding-line antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839948U true CN202839948U (en) | 2013-03-27 |
Family
ID=47951575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220144476 Expired - Fee Related CN202839948U (en) | 2012-04-05 | 2012-04-05 | Bonding-line antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963420A (en) * | 2018-04-23 | 2018-12-07 | 易力声科技(深圳)有限公司 | A kind of high resiliency antenna being made by closing line |
-
2012
- 2012-04-05 CN CN 201220144476 patent/CN202839948U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963420A (en) * | 2018-04-23 | 2018-12-07 | 易力声科技(深圳)有限公司 | A kind of high resiliency antenna being made by closing line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150405 |
|
| EXPY | Termination of patent right or utility model |