CN104538739A - Conformal dual-band receiving and transmitting antenna - Google Patents
Conformal dual-band receiving and transmitting antenna Download PDFInfo
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- CN104538739A CN104538739A CN201410855086.6A CN201410855086A CN104538739A CN 104538739 A CN104538739 A CN 104538739A CN 201410855086 A CN201410855086 A CN 201410855086A CN 104538739 A CN104538739 A CN 104538739A
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Abstract
The invention provides a conformal dual-band receiving and transmitting antenna which comprises an antenna radiating element, a metal base and a dielectric substrate. The antenna radiating element comprises a first metal piece and a second metal piece. The first metal piece with the resonance of 2205 MHz serves as a receiving antenna. The second metal piece with the resonance of 2295 MHz serves as a transmitting antenna. The metal base is located on the back of the dielectric substrate. The first metal piece and the second metal piece are connected to the front of the dielectric substrate through feeding points. The first metal piece and the second metal piece are each provided with a metal via hole I used for short circuits. The dielectric substrate is provided with metal via holes II corresponding to the metal via holes I in position. The conformal dual-band receiving and transmitting antenna has the fairly high isolation degree within the two frequency bands of 2.198-2.218 GHz and 2.273-2.320 GHz, namely, the return loss of a port of the antenna is smaller than minus 10 dB, and the isolation degree is smaller than minus 17 dB.
Description
Technical field
The present invention relates to conformal antenna technical field, particularly, relate to the conformal two-band dual-mode antenna of a kind of covering 2.198 ~ 2.218GHz and 2.273 ~ 2.320GHz two-band.
Background technology
The development of the communication technology, aircraft, some position on bullet train or other vehicles all needs to lay antenna, conformal antenna can merge mutually with object structures to set up one, and don't the antenna of added burden can be brought, also comprise antenna integrated time, under the environment such as such as city, Antenna Operation performance is less disturbed, antenna not easily find by human eye, in modern military system of defense, a typical extra demand is exactly, back scattering is not produced when the microwave irradiation thing that antenna is launched by local radar transmitter, consider aerodynamics factor or hydrodynamic factor simultaneously, the research of conformal antenna occupies more and more consequence.
A lot of document is had both at home and abroad in conformal antenna, by finding as the article in 2010Proccedings of the Fourth European conference on Antannas andPropagation. (EUCAP) prior art retrieval: Dual-Polarized Cylindrically ConformalMicrochip Patch Antannas and Arrays, paster antenna that is a kind of and characteristics of conformal is described in literary composition, but just achieve one-band antenna, can not integrated receiving and transmitting double frequency section.
Summary of the invention
For above shortcomings in prior art, the invention provides a kind of conformal two-band dual-mode antenna, this conformal two-band dual-mode antenna is conformal with the object profile specified in advance, in working frequency range 2.198GHz ~ 2.218GHz and 2.273GHz ~ 2.320GHz scope, the reflection coefficient of port loss <-10dB of antenna, isolation <-17dB, can be used for the radio communications such as guided missile, and provides quite high isolation.
The present invention is achieved by the following technical solutions.
A kind of conformal two-band dual-mode antenna, for covering 2.198 ~ 2.218GHz and 2.273 ~ 2.320GHz two frequency range, comprise antenna radiation unit, metal and medium substrate, wherein:
Described antenna radiation unit comprises the first sheet metal and the second sheet metal, and described first sheet metal resonance is in 2205MHz, and as reception antenna, described second sheet metal shakes in 2295MHz, as transmitting antenna;
Described metal ground is positioned at the back side of medium substrate;
Described first sheet metal and the second sheet metal are connected to the front of medium substrate respectively by distributing point;
Described first sheet metal and the second sheet metal are equipped with the metallic vias I for short circuit, described medium substrate is provided with the metallic vias II corresponding with metallic vias I position.
Preferably, described medium substrate, the first sheet metal, the second sheet metal are axially symmetric structure and coaxially arrange, and described distributing point is positioned on the axis of symmetry axis; The all relative axisymmetrical distribution of described metallic vias I and metallic vias II.
Preferably, the length of described first sheet metal is 21.74mm, and width is 29.89mm; The length of described second sheet metal is 20.88mm, and width is 29.89mm.
Preferably, the surrounding of described medium substrate is provided with for fixing installation via hole.
Preferably, described installation via hole relative axis is symmetrical.
Preferably, described medium substrate adopts polytetrafluoroethylmaterial material.
Preferably, described distributing point adopts SMA interface to carry out feed.
Conformal two-band dual-mode antenna provided by the invention, can be fixed in external structure by the via hole of screw and medium substrate surrounding; Compared with prior art, the present invention has following beneficial effect:
1, conformal two-band dual-mode antenna provided by the invention, the test value of its S parameter and directional diagram can meet the demands, and has validity;
2, the present invention adopts the structure of printed circuit board (PCB), is convenient to processing;
3, the present invention integrates and receives and dispatches, and has the feature of compact;
4, the present invention can be widely used in the communications field, especially can be applicable to the radio communication in guided missile field.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the conformal dual-mode antenna structural representation of two-band, and wherein, via structure schematic diagram is used in (a) metallic vias and installation, and (b) is distributing point structural representation, and (c) is antenna radiation unit structural representation;
Fig. 2 is that the conformal dual-mode antenna of two-band is in low frequency place test S parameter result;
Fig. 3 is that the conformal dual-mode antenna of two-band is in high frequency treatment test S parameter result;
Fig. 4 is two-band conformal dual-mode antenna front overall structure schematic diagram;
Fig. 5 is two-band conformal dual-mode antenna back side overall structure schematic diagram;
Fig. 6 is the conformal dual-mode antenna 2.205GHz of two-band, normalized gain directional diagram when Phi=0 spends;
Fig. 7 is the conformal dual-mode antenna 2.205GHz of two-band, normalized gain direction when Phi=90 spends;
Fig. 8 is the conformal dual-mode antenna 2.295GHz of two-band, normalized gain directional diagram when Phi=0 spends;
Fig. 9 is the conformal dual-mode antenna 2.295GHz of two-band, normalized gain directional diagram when Phi=90 spends;
In figure:
1 is installation via hole
2 is metallic vias
3 is the first distributing point
4 is the second distributing point
5 is the first sheet metal
6 is the second sheet metal
7 is medium substrate
8 is metal ground.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed execution mode and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Present embodiments provide a kind of conformal two-band dual-mode antenna, for covering 2.198 ~ 2.218GHz and 2.273 ~ 2.320GHz two frequency range, comprise antenna radiation unit, metal and medium substrate, wherein:
Described antenna radiation unit comprises the first sheet metal and the second sheet metal, and described first sheet metal resonance is in 2205MHz, and as reception antenna, described second sheet metal shakes in 2295MHz, as transmitting antenna;
Described metal ground is positioned at the back side of medium substrate;
Described first sheet metal and the second sheet metal are connected to the front of medium substrate respectively by distributing point;
Described first sheet metal and the second sheet metal are equipped with the metallic vias I for short circuit, described medium substrate is provided with the metallic vias II corresponding with metallic vias I position.
Further, described medium substrate, the first sheet metal, the second sheet metal are axially symmetric structure and coaxially arrange, and described distributing point is positioned on the axis of symmetry axis; The all relative axisymmetrical distribution of described metallic vias I and metallic vias II.
Further, the length of described first sheet metal is 21.74mm, and width is 29.89mm; The length of described second sheet metal is 20.88mm, and width is 29.89mm.
Further, the surrounding of described medium substrate is provided with for fixing installation via hole.
Further, described installation via hole relative axis is symmetrical.
Further, described medium substrate adopts polytetrafluoroethylmaterial material.
Further, described distributing point adopts SMA interface to carry out feed.
Below in conjunction with accompanying drawing, the present embodiment is further described.
Present embodiments provide a kind of conformal two-band dual-mode antenna, can be applicable to the radio communications such as guided missile.
Described conformal two-band dual-mode antenna volume is 78 × 50 × 2.0mm, covers 2.198 ~ 2.218GHz and 2.273GHz ~ 2.320GHz two frequency range.
As shown in Fig. 1 (a), Fig. 1 (b), Fig. 1 (c), Fig. 4 and Fig. 5, the conformal two-band dual-mode antenna that the present embodiment provides, comprises antenna radiation unit, metal ground 8 and medium substrate 7; Antenna radiation unit is provided with metallized metallic vias 2, for short circuit; Medium substrate 7 can also be provided with for fixing installation via hole 1; Feed is carried out by the first distributing point 3 and the second distributing point 4 between antenna radiation unit and metal ground 8.
As shown in Fig. 1 (c) He Fig. 4, described antenna radiation unit comprises the first sheet metal 5 and the second sheet metal 6, wherein:
First sheet metal 5 length is 21.74mm, and width is 29.89mm, resonance in 2205MHz, for reception antenna;
Second sheet metal 6 length is 20.88mm, and width is 29.89mm, resonance in 2295MHz, for transmitting antenna.
As shown in Figure 5, metal ground 8 is positioned at the back side of medium substrate 7, and by SMA interface to antenna feed.
As shown in Fig. 1 (a) He Fig. 4, the edge of medium substrate 7 is provided with installation via hole 1, by screw and installation via hole 1, can accomplish with external structure conformal.
Medium substrate 7, first sheet metal 5, second sheet metal 6 is axially symmetric structure and coaxially arranges, and the position of described first distributing point 3 and the second distributing point 4 is positioned on the axis of symmetry axis; The all relative axisymmetrical distribution of described metallic vias I and metallic vias II.
Described metal ground 8 is rectangular metal sheet, and medium substrate 7 is polytetrafluoroethylmaterial material, and its dielectric constant is 2.2, loss tangent 0.0009.
Installation via hole 1, metallic vias 2, first sheet metal 5 and the second sheet metal 6 are axial symmetry distribution, d first distributing point (SMA distributing point) 3 and the second routed electric point (SMA distributing point) 4 are all positioned on axis, and medium substrate 7 is that lower surface (back side) applies copper as metal ground.
The front elevation of conformal two-band dual-mode antenna and back view are as shown in Figure 4 and Figure 5.
Conformal two-band dual-mode antenna test S parameter as shown in Figures 2 and 3.
The normalized gain directional diagram of conformal two-band dual-mode antenna test as shown in Figures 6 to 9.
The conformal two-band dual-mode antenna that the present embodiment provides, through processing and testing authentication, the S parameter of antenna and the test value of directional diagram all can meet the demands, and have validity.
The present embodiment has quite high isolation in 2.198 ~ 2.218GHz and 2.273 ~ 2.320GHz two frequency range, i.e. the reflection coefficient of port loss <-10dB of antenna, isolation <-17dB.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (7)
1. a conformal two-band dual-mode antenna, is characterized in that, for covering 2.198 ~ 2.218GHz and 2.273 ~ 2.320GHz two frequency range, comprises antenna radiation unit, metal ground (8) and medium substrate (7), wherein:
Described antenna radiation unit comprises the first sheet metal (5) and the second sheet metal (6), described first sheet metal (5) resonance is in 2205MHz, as reception antenna, described second sheet metal (6) is shaken in 2295MHz, as transmitting antenna;
Described metal ground (8) is positioned at the back side of medium substrate (7);
Described first sheet metal (5) and the second sheet metal (6) are connected to the front of medium substrate (7) respectively by distributing point;
Described first sheet metal (5) and the second sheet metal (6) are equipped with the metallic vias I for short circuit, described medium substrate (7) is provided with the metallic vias II corresponding with metallic vias I position.
2. conformal two-band dual-mode antenna according to claim 1, is characterized in that, described medium substrate (7), the first sheet metal, the second sheet metal are axially symmetric structure and coaxially arrange, and described distributing point is positioned on the axis of symmetry axis; The all relative axisymmetrical distribution of described metallic vias I and metallic vias II.
3. conformal two-band dual-mode antenna according to claim 1 and 2, is characterized in that, the length of described first sheet metal (5) is 21.74mm, and width is 29.89mm; The length of described second sheet metal (6) is 20.88mm, and width is 29.89mm.
4. conformal two-band dual-mode antenna according to claim 1, is characterized in that, the edge of described medium substrate (7) is provided with for fixing installation via hole (1).
5. conformal two-band dual-mode antenna according to claim 4, is characterized in that, described installation via hole (1) relative axis is symmetrical.
6. conformal two-band dual-mode antenna according to claim 1, is characterized in that, described medium substrate (7) adopts polytetrafluoroethylmaterial material.
7. conformal two-band dual-mode antenna according to claim 1, is characterized in that, described distributing point adopts SMA interface to carry out feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410855086.6A CN104538739A (en) | 2014-12-26 | 2014-12-26 | Conformal dual-band receiving and transmitting antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410855086.6A CN104538739A (en) | 2014-12-26 | 2014-12-26 | Conformal dual-band receiving and transmitting antenna |
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| Publication Number | Publication Date |
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| CN104538739A true CN104538739A (en) | 2015-04-22 |
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| CN201410855086.6A Pending CN104538739A (en) | 2014-12-26 | 2014-12-26 | Conformal dual-band receiving and transmitting antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
| CN112993552A (en) * | 2021-02-10 | 2021-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Dual-frequency phase-stabilizing conformal Beidou satellite antenna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400040A (en) * | 1993-04-28 | 1995-03-21 | Raytheon Company | Microstrip patch antenna |
| CN101145634A (en) * | 2007-08-31 | 2008-03-19 | 南京大学 | Omnidirectional radiation antenna with simplified left micro-belt structure |
| CN101789538A (en) * | 2009-01-22 | 2010-07-28 | 深圳市华信天线技术有限公司 | Multifrequency patch antenna device |
| US7843392B2 (en) * | 2008-07-18 | 2010-11-30 | General Dynamics C4 Systems, Inc. | Dual frequency antenna system |
| CN102354809A (en) * | 2011-08-09 | 2012-02-15 | 华南理工大学 | Double-frequency and double-polarization antenna capable of operating in compass satellite navigation system and mobile third-generation (3G) network |
| CN102468534A (en) * | 2010-11-04 | 2012-05-23 | 北京和协航电科技有限公司 | Single-layer double-frequency microstrip antenna |
-
2014
- 2014-12-26 CN CN201410855086.6A patent/CN104538739A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400040A (en) * | 1993-04-28 | 1995-03-21 | Raytheon Company | Microstrip patch antenna |
| CN101145634A (en) * | 2007-08-31 | 2008-03-19 | 南京大学 | Omnidirectional radiation antenna with simplified left micro-belt structure |
| US7843392B2 (en) * | 2008-07-18 | 2010-11-30 | General Dynamics C4 Systems, Inc. | Dual frequency antenna system |
| CN101789538A (en) * | 2009-01-22 | 2010-07-28 | 深圳市华信天线技术有限公司 | Multifrequency patch antenna device |
| CN102468534A (en) * | 2010-11-04 | 2012-05-23 | 北京和协航电科技有限公司 | Single-layer double-frequency microstrip antenna |
| CN102354809A (en) * | 2011-08-09 | 2012-02-15 | 华南理工大学 | Double-frequency and double-polarization antenna capable of operating in compass satellite navigation system and mobile third-generation (3G) network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
| CN112993552A (en) * | 2021-02-10 | 2021-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Dual-frequency phase-stabilizing conformal Beidou satellite antenna |
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Application publication date: 20150422 |
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