CN204668474U - Phase array cavate microband antenna unit - Google Patents
Phase array cavate microband antenna unit Download PDFInfo
- Publication number
- CN204668474U CN204668474U CN201520369953.5U CN201520369953U CN204668474U CN 204668474 U CN204668474 U CN 204668474U CN 201520369953 U CN201520369953 U CN 201520369953U CN 204668474 U CN204668474 U CN 204668474U
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- dielectric plate
- cavate
- layer dielectric
- coaxial switch
- antenna
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Abstract
The utility model discloses phase array cavate microband antenna unit, it relates to the phased array antenna radiating element device of communication, measurement and control area.This device comprises top dielectric plate 1, metal enclosure frame 3, layer dielectric plate 2 and the metal reflection cavity 4 of fitting successively from top to bottom, is run through be fixedly connected with by medium screw 5; The lower surface of metal reflection cavity 4 is connected with coaxial switch 6 by flange; Lower floor's paster 8 is at the lower surface of layer dielectric plate 2; Capacitance sheet 9 is at the upper surface of layer dielectric plate 2.This device according to communication, TT&C system to phased array antenna antenna pattern, the design of standing wave, requirements of installation space, have that standing wave band is wide, a cavate microband antenna unit of antenna pattern in low profile, high-quality battle array.The utility model is applicable to aircraft carrier high-performance low profile phased array antenna design in communication, TT&C system.
Description
Technical field
The utility model relates to a kind of phase array cavate microband antenna unit in communication, measurement and control area, the utility model be comparatively applicable to being applied to require there is beam scanning function phased array antenna communication, in TT&C system.
Background technology
Microstrip antenna has low profile with it, miniaturized, feature easy of integration, be widely used in communication, TT&C system, particularly in the design of phased array antenna battle array, the form adopting microstrip antenna more, because it easily meets the requirement of beam scanning scope to antenna array spacing dimension, phase array microstrip element form mainly contains following several form, respectively has advantage, but also all there is certain deficiency.
1, single layer microstrip phased array antenna unit: this form antenna structure is simple, and profile is low, active circuit easy of integration, but antenna impedance bandwidth is narrower, is only 2%, broadband system application is limited.
2, the micro-band phased array antenna unit of accurate Yagi spark gap, the microstrip antenna of this form has the advantages that size is little, impedance bandwidth is wide, the standing wave band being less than 2 is wider than 20%, but it is wider that it is sheet line source structure, H face pattern beamwidth, be coupled in battle array comparatively large, directional diagram can produce distortion in various degree; On the other hand, its longitudinal size is comparatively large, causes antenna to be difficult to realize low profile design, especially when working frequency range is lower, shows particularly outstanding.
3, slot-coupled phase array microstrip antenna, the feature that microstrip antenna tool profile is low, impedance bandwidth is wide of this form, but this antenna is Open architecture, unshielded structure layer by layer, in phased array antenna application, be coupled in battle array comparatively large, radiation pattern can be made to produce distortion; On the other hand, this antenna adopts the mode of side feedback, and such connector can take the physical space in group battle array direction, does not utilize the design of wide-angle scanning Phased Array Antenna.
Summary of the invention
The purpose of this utility model is avoid the weak point in above-mentioned background technology and provide a kind of phase array cavate microband antenna unit, and feature of the present utility model is, impedance bandwidth is wide, profile is low, and compact conformation, size are little, end feedback feeding classification.
The utility model is achieved in that phase array cavate microband antenna unit, comprises top dielectric plate 1, metal enclosure frame 3, layer dielectric plate 2 and the metal reflection cavity 4 of fitting successively from top to bottom, is run through be fixedly connected with by medium screw 5; The lower surface of metal reflection cavity 4 is connected with coaxial switch 6 by flange.
Wherein, coaxial switch 6 comprises coaxial switch outer conductor and coaxial switch inner wire 10; The upper surface of top dielectric plate 1 is printed with upper strata paster 7, the lower surface of layer dielectric plate 2 is printed with lower floor's paster 8, the upper surface of layer dielectric plate 2 is printed with capacitance sheet 9, layer dielectric plate 2 has the hole identical with coaxial switch inner wire 10 diameter, coaxial switch inner wire 10 is welded with capacitance sheet 9 mutually by the hole of layer dielectric plate 2, and coaxial switch outer conductor is connected by the lower surface of flange with metal reflection cavity 4.
Wherein, the center of described capacitance sheet 9 is not on the line of two groups of opposite side mid points of lower floor's paster 8 and in the point of intersection of two groups of opposite side mid point lines.
Wherein, described capacitance sheet 9 is circular or square.
The utility model compares with background technology and has the following advantages:
1, the utility model is provided with phase array cavate microband antenna unit, this cavate microstrip antenna is made up of top dielectric plate 1, layer dielectric plate 2, metal enclosure frame 3, metal reflection cavity 4, medium screw 5, coaxial switch 6, can in broadband phased array antenna battle array in produce high-quality antenna pattern, overcome the technical barrier of antenna pattern distortion in conventional microstrip phased array antenna unit battle array, the standing wave band being less than 2 is wider than 20%, and in battle array, unit interval is from being greater than 20dB.
2, the whole antenna structure of the utility model is simple, compact, unit electromagnetic shielding in battle array is compared excellent with the microstrip antenna of other aperture-coupleds, unit interval is high from degree, this antenna structure can realize Miniaturization Design simultaneously, meet and realize the requirement of beam scanning ± 60 ° to antenna size, the feeding classification of end feedback simultaneously, is conducive to longitudinally realizing being integrated and connected with active T/R assembly, is applicable to the wideband phased array antenna system of high integration, wide-angle scanning.
Accompanying drawing explanation
Fig. 1 is phase array cavate microband antenna unit three-dimensional structure schematic diagram of the present utility model;
Fig. 2 is phase array cavate microband antenna unit hierarchy schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described in detail.
The utility model comprises top dielectric plate 1, layer dielectric plate 2, metal enclosure frame 3, metal reflection cavity 4, medium screw 5 and coaxial switch 6, Fig. 1 is three-dimensional structure schematic diagram of the present utility model, the relative position relation between each parts is given: top dielectric plate 1 in figure, metal enclosure frame 3, layer dielectric plate 2 and metal reflection cavity 4 are fitted from top to bottom successively, and run through by medium screw 5 and be fixedly connected with, what fill between layers is air dielectric, the lower surface of metal reflection cavity 4 is connected with coaxial switch 6 by flange, screw is adopted to be fixed flange, ensure electrical connection good contact.
Fig. 2 is the every Rotating fields schematic diagram of the utility model, upper strata paster 7 is printed on the lower surface of top dielectric plate 1, lower floor's paster 8 is printed on the lower surface of layer dielectric plate 2, circular capacitor sheet 9 is printed on the upper surface of layer dielectric plate 2, layer dielectric plate 2 has the hole identical with coaxial switch inner wire 10 diameter, coaxial switch inner wire 10 is connected on circular capacitor sheet 9 by the eyelet welding of layer dielectric plate 2, and coaxial switch outer conductor is closely connected by flange with the lower surface of metal reflection cavity 4.Wherein, upper strata paster 7 effect is radiation or receiving electromagnetic signals, completes electromagnetic signal conversion, and embodiment adopts printed board to apply steel structure, and this paster is at the lower surface of printed board, and this design considers that dielectric-slab can play a protective role to radiation patch; Circular capacitor sheet 9 is at the lower surface of layer dielectric plate 2, and its effect carries out manifold type feed to lower floor's paster 8, and this kind of feeding classification can the bandwidth of broadening cavate microstrip antenna, and realizes being optimized input impedance tuning; Coaxial switch inner wire 10 is welded on circular capacitor sheet 9, achieves coaxial switch to antenna feed; Metal enclosure frame 3 and metal reflection cavity 4 and serve shielding action to the radiant body of antenna, ensure that the high-isolation between phased a burst of middle unit.
Utility model works principle is as follows:
Transmit and output on circular capacitor sheet through coaxial switch, circular capacitor sheet will transmit and be coupled on lower floor's paster, lower floor's paster has encouraged induced current and has been coupled on the paster of upper strata by the mode of Space Coupling, upper strata paster has encouraged electromagnetic wave and has been radiated free space.The reception of antenna and be emitted as reciprocity process, Received signal strength is coupled on lower floor's paster through upper strata paster by spatial coupling, and Received signal strength is coupled on circular capacitor sheet by lower floor's paster, finally outputs to external receiver by coaxial switch and coaxial cable.
Claims (4)
1. phase array cavate microband antenna unit, it is characterized in that: comprise top dielectric plate (1), metal enclosure frame (3), layer dielectric plate (2) and the metal reflection cavity (4) of fitting successively from top to bottom, run through by medium screw (5) and be fixedly connected with; The lower surface of metal reflection cavity (4) is connected with coaxial switch (6) by flange.
2. phase array cavate microband antenna unit according to claim 1, is characterized in that: described coaxial switch (6) comprises coaxial switch outer conductor and coaxial switch inner wire (10); The upper surface of top dielectric plate (1) is printed with upper strata paster (7), the lower surface of layer dielectric plate (2) is printed with lower floor's paster (8), the upper surface of layer dielectric plate (2) is printed with capacitance sheet (9), layer dielectric plate (2) has the hole identical with coaxial switch inner wire (10) diameter, coaxial switch inner wire (10) is welded with capacitance sheet (9) mutually by the hole of layer dielectric plate (2), and coaxial switch outer conductor is connected by the lower surface of flange with metal reflection cavity (4).
3. phase array cavate microband antenna unit according to claim 2, is characterized in that: the center of described capacitance sheet (9) is not on the line of two groups of opposite side mid points of lower floor's paster (8) and in the point of intersection of two groups of opposite side mid point lines.
4. the phase array cavate microband antenna unit according to Claims 2 or 3, is characterized in that: described capacitance sheet (9) is for circular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369953.5U CN204668474U (en) | 2015-06-01 | 2015-06-01 | Phase array cavate microband antenna unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369953.5U CN204668474U (en) | 2015-06-01 | 2015-06-01 | Phase array cavate microband antenna unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668474U true CN204668474U (en) | 2015-09-23 |
Family
ID=54138826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520369953.5U Withdrawn - After Issue CN204668474U (en) | 2015-06-01 | 2015-06-01 | Phase array cavate microband antenna unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204668474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953296A (en) * | 2015-06-01 | 2015-09-30 | 中国电子科技集团公司第五十四研究所 | Phased array chamber type microstrip antenna unit |
| CN106611892A (en) * | 2015-10-22 | 2017-05-03 | 泰科电子(上海)有限公司 | An external antenna and a method of manufacturing the same |
-
2015
- 2015-06-01 CN CN201520369953.5U patent/CN204668474U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953296A (en) * | 2015-06-01 | 2015-09-30 | 中国电子科技集团公司第五十四研究所 | Phased array chamber type microstrip antenna unit |
| CN104953296B (en) * | 2015-06-01 | 2018-08-14 | 中国电子科技集团公司第五十四研究所 | Phased array cavate microband antenna unit |
| CN106611892A (en) * | 2015-10-22 | 2017-05-03 | 泰科电子(上海)有限公司 | An external antenna and a method of manufacturing the same |
| CN106611892B (en) * | 2015-10-22 | 2019-09-06 | 泰科电子(上海)有限公司 | External antenna and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150923 Effective date of abandoning: 20180814 |