CN104701611A - Antenna for marine radar - Google Patents
Antenna for marine radar Download PDFInfo
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- CN104701611A CN104701611A CN201510066301.9A CN201510066301A CN104701611A CN 104701611 A CN104701611 A CN 104701611A CN 201510066301 A CN201510066301 A CN 201510066301A CN 104701611 A CN104701611 A CN 104701611A
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Abstract
The invention discloses an antenna for a marine radar. The antenna for the marine radar comprises a rectangular substrate, a radiation layer arranged above the rectangular substrate, an electricity feed layer arranged below the rectangular substrate, a dielectric slab arranged below the electricity feed layer and a reflection plate arranged below the dielectric slab, wherein the radiation layer comprises a copper coating layer attached to the upper surface of the substrate and a radiation unit arranged in the middle of the copper coating layer, the radiation unit comprises an I-shaped slot array, the I-shaped slot array comprises a plurality of I-shaped slots on the copper coating layer, obtained through a corrosion technology, the plurality of the I-shaped slots are evenly arranged along the length direction of the substrate at intervals, the electricity feed layer is a long-strip-shaped copper sheet arranged on the lower surface of the rectangular substrate, the dielectric slab is fixedly connected with the substrate, and the reflection plate is fixedly connected with the dielectric slab. The antenna for the marine radar has the advantages of being high in isolation degree and high in gain.
Description
Technical field
The present invention relates to a kind of antenna, especially relate to a kind of antenna for marine radar.
Background technology
Along with the rising day by day of Chinese overall national strength and international status, maritime territory is more and more subject to people's attention, and antenna is as the vitals of marine radar system, and its research obtains and develops fast.
The isolation of antenna and gain effects the overall performance of marine radar system, are two important indicators of the Antenna Design for marine radar, are also the difficult points of design.Traditional antenna for marine radar is generally micro-strip paster antenna, but the processes precision that it adopts is lower, can meet the demands in low-frequency range fashion, but millimeter wave even more high band time, machining accuracy becomes an important factor of restriction antenna performance, and its bandwidth is wide, have a strong impact on its radiance at assigned direction, gain can not meet the demands; Unit piece mutual coupling effect successful in micro-strip paster antenna, affects isolation between antennas in addition.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of antenna for marine radar with high-isolation and high-gain.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of antenna for marine radar, comprise the substrate of cuboid-type, be arranged on the radiating layer of described surface, be arranged on feed layer below described substrate, the reflecting plate being arranged on the dielectric-slab below described feed layer and being arranged on below described dielectric-slab; Described radiating layer comprises the copper clad layers being attached to described upper surface of base plate and the radiating element be arranged in the middle part of described copper clad layers, described radiating element comprises I shape gap array, described I shape gap array is included in by multiple I shape gaps that corrosion technology obtains in described copper clad layers, and multiple I shape gap arranges along the length direction uniform intervals of described substrate; Described feed layer is the strip copper sheet be arranged on described base lower surface; Described dielectric-slab is fixedly connected with described substrate, and described reflecting plate is fixedly connected with described dielectric-slab.
The material of described substrate is glass-epoxy, the material of described dielectric-slab is high rigidity foam, described reflecting plate is the pcb board of all whole covering copper of upper surface and lower surface, and the distance between described substrate and described reflecting plate is quarter-wave.
The middle part of described substrate left end arranges the circular hole of the substrate running through described, a coaxial line passes from described circular hole, the internal diameter of described circular hole is equal with the external diameter of described coaxial line, the outer core of the upper end of described coaxial line is welded on the middle part of the copper clad layers left end of described radiating layer, and the inner core of the lower end of described coaxial line is welded on the middle part of described feed layer left end.This structure adopts coaxial line energy feeding, by be connected to form planar microstrip line feed with the strip copper sheet of feed layer thus realize one-way radiation and easily and object realize general character and install.
Compared with prior art, the invention has the advantages that radiating layer comprises the copper clad layers being attached to upper surface of base plate and the radiating element be arranged in the middle part of copper clad layers, radiating element comprises I shape gap array, I shape gap array is included in copper clad layers by multiple I shape gaps that corrosion technology obtains, this I shape gap can by the accurate control of corrosion technology realization to I shape gap size in typography, being formed along seam length direction in I shape gap is the electric field that standing wave distributes, guarantee the stability of radiating layer when high band operation, change aerial radiation direction by reflecting plate simultaneously, further raising antenna gain, in addition, radiating layer and feed layer realize being separated from each other by substrate, reduce the mutual coupling effect of signal between receive-transmit system, thus realize high isolation degree.
Accompanying drawing explanation
Fig. 1 is the vertical view of radiating layer of the present invention;
Fig. 2 is integrally-built end view of the present invention;
Fig. 3 is integrally-built front view of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment: as shown in the figure, a kind of antenna for marine radar, comprise the substrate 1 of cuboid-type, be arranged on radiating layer 2 above substrate 1, be arranged on feed layer 3 below substrate 1, the reflecting plate 5 being arranged on the dielectric-slab 4 below feed layer 3 and being arranged on below dielectric-slab 4; Radiating layer 2 comprises the copper clad layers 21 being attached to substrate 1 upper surface and the radiating element be arranged in the middle part of copper clad layers 21, radiating element comprises I shape gap array, I shape gap array is included in by multiple I shape gaps 22 that corrosion technology obtains in copper clad layers 21, and multiple I shape gap 22 arranges along the length direction uniform intervals of substrate 1; Feed layer 3 is for being arranged on the strip copper sheet on substrate 1 lower surface; Dielectric-slab 4 is fixedly connected with substrate 1, and reflecting plate 5 is fixedly connected with dielectric-slab 4.
In the present embodiment, the material of substrate 1 is glass-epoxy, and the material of dielectric-slab 4 is high rigidity foam, and reflecting plate 5 is the pcb board of all whole covering copper of upper surface and lower surface, and the distance between substrate 1 and reflecting plate 5 is quarter-wave.
In the present embodiment, the middle part of substrate 1 left end arranges the circular hole running through substrate 1, a coaxial line passes from circular hole, the internal diameter of circular hole is equal with the external diameter of coaxial line, the outer core of the upper end of coaxial line is welded on the middle part of copper clad layers 21 left end of radiating layer 2, and the inner core of the lower end of coaxial line is welded on the middle part of feed layer 3 left end.
The antenna for marine radar of the present embodiment, substrate 1, as the passage of electromagnetic coupled, forms electromagnetic coupled between feed layer 3 and radiating layer 2, produces radiation.
Claims (3)
1. the antenna for marine radar, the substrate that it is characterized in that comprising cuboid-type, the radiating layer being arranged on described surface, be arranged on feed layer below described substrate, the reflecting plate being arranged on the dielectric-slab below described feed layer and being arranged on below described dielectric-slab; Described radiating layer comprises the copper clad layers being attached to described upper surface of base plate and the radiating element be arranged in the middle part of described copper clad layers, described radiating element comprises I shape gap array, described I shape gap array is included in by multiple I shape gaps that corrosion technology obtains in described copper clad layers, and multiple I shape gap arranges along the length direction uniform intervals of described substrate; Described feed layer is the strip copper sheet be arranged on described base lower surface; Described dielectric-slab is fixedly connected with described substrate, and described reflecting plate is fixedly connected with described dielectric-slab.
2. a kind of antenna for marine radar according to claim 1, it is characterized in that the material of described substrate is glass-epoxy, the material of described dielectric-slab is high rigidity foam, described reflecting plate is the pcb board of all whole covering copper of upper surface and lower surface, and the distance between described substrate and described reflecting plate is quarter-wave.
3. a kind of antenna for marine radar according to claim 1, it is characterized in that the middle part of described substrate left end arranges the circular hole of the substrate running through described, a coaxial line passes from described circular hole, the internal diameter of described circular hole is equal with the external diameter of described coaxial line, the outer core of the upper end of described coaxial line is welded on the middle part of the copper clad layers left end of described radiating layer, and the inner core of the lower end of described coaxial line is welded on the middle part of described feed layer left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066301.9A CN104701611A (en) | 2015-02-09 | 2015-02-09 | Antenna for marine radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066301.9A CN104701611A (en) | 2015-02-09 | 2015-02-09 | Antenna for marine radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104701611A true CN104701611A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510066301.9A Pending CN104701611A (en) | 2015-02-09 | 2015-02-09 | Antenna for marine radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104701611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796149Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | Base station fan antenna of radio city region net |
| CN101083357A (en) * | 2007-07-11 | 2007-12-05 | 南京大学 | Omnidirectional radiative microstrip aerial |
| KR20090093195A (en) * | 2008-02-28 | 2009-09-02 | 한국전자통신연구원 | Micro strip antenna comprised of two Slots |
| CN103022685A (en) * | 2013-01-18 | 2013-04-03 | 厦门大学 | Beidou system coupling load parasitic unit orthogonal synthesis dual-frequency microstrip antenna |
| CN103337696A (en) * | 2013-04-08 | 2013-10-02 | 中国人民解放军空军工程大学 | Variable polarization panel antenna unit |
-
2015
- 2015-02-09 CN CN201510066301.9A patent/CN104701611A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796149Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | Base station fan antenna of radio city region net |
| CN101083357A (en) * | 2007-07-11 | 2007-12-05 | 南京大学 | Omnidirectional radiative microstrip aerial |
| KR20090093195A (en) * | 2008-02-28 | 2009-09-02 | 한국전자통신연구원 | Micro strip antenna comprised of two Slots |
| CN103022685A (en) * | 2013-01-18 | 2013-04-03 | 厦门大学 | Beidou system coupling load parasitic unit orthogonal synthesis dual-frequency microstrip antenna |
| CN103337696A (en) * | 2013-04-08 | 2013-10-02 | 中国人民解放军空军工程大学 | Variable polarization panel antenna unit |
Non-Patent Citations (1)
| Title |
|---|
| 马汉清、褚庆昕: "基于遗传算法的微带缝隙串馈赋形波束天线", 《微波学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
| CN114735558B (en) * | 2022-04-02 | 2023-08-11 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |