CN203826563U - A planar array antenna - Google Patents
A planar array antenna Download PDFInfo
- Publication number
- CN203826563U CN203826563U CN201420225695.9U CN201420225695U CN203826563U CN 203826563 U CN203826563 U CN 203826563U CN 201420225695 U CN201420225695 U CN 201420225695U CN 203826563 U CN203826563 U CN 203826563U
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- array antenna
- power divider
- flat plate
- planar array
- antenna
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Abstract
The utility model discloses a planar array antenna which is applied to a frequency scope of 10GHz-100GHz. The planar array antenna is characterized in that the planar array antenna comprises a planar reflector and a waveguide power divider connected with a signal output terminal of the planar reflector and an antenna radiation unit in signal connection with the waveguide power divider. The planar reflector is provided with a reflection side edge in multi-point smooth transition. The reflection side edge is positioned in an H surface of the planar array antenna, and is used for conducting amplitude weighting distribution for the H surface of the planar array antenna. The waveguide power divider is connected to one end of the reflection side edge, and is positioned in an E surface of the planar array antenna, and is used for conducting constant amplitude distribution for the E surface of the planar array antenna. The antenna radiation unit comprises rectangular waveguides and medium gratings assembled with the rectangular waveguides in a quadrature mode. Compared with planar array antennas in the prior art, the planar array antenna provided by the utility model has characteristics of low losses, simple technological requirements, low processing precision requirements and good manufacturability.
Description
Technical field
The utility model relates to antenna system, relates in particular to a kind ofly for mobile communication microwave relay passback (back-haul) system, can be used for the flat plate array antenna of signal transmission between wireless WIFI point-to-point (point-point link) base station simultaneously.
Background technology
Antenna is a kind of converter, and it,, the guided wave of transmission above-the-line promotion, is transformed into the electromagnetic wave of propagating in unbounded medium, or carries out contrary conversion.In wireless device, be used for transmitting or receive electromagnetic parts.The engineering systems such as radio communication, broadcast, TV, radar, navigation, electronic countermeasures, remote sensing, radio astronomy, every electromagnetic wave that utilizes carrys out transmission of information, all relies on antenna to carry out work.
At present conventional antenna mainly contains following several scheme, 1 in the world) microstrip line scheme, feature is that processing is simple, and cost is low, and volume is little; But loss is large, narrow bandwidth is the unsurmountable short slab of this class antenna, thereby can not in E band system, adopt.2) the substrate integration wave-guide SIW technology based on offset printing circuit, the loss of this class antenna and bandwidth performance are well more a lot of than microstrip line scheme.But loss and bandwidth performance can't meet engineering system requirement, this class antenna must adopt multilayer printed circuit scheme and multi-layer sheet through hole technology simultaneously, makes processing cost increase; So far also do not see in the literature the sample that this class technology maturation is feasible.3) multi-layer sheet guide technology.The telecommunication index of emulation can be fine, but processing technology requirement is very high, the performance index of the actual measurement of seeing in the literature, and particularly loss objective is poor.
When as can be seen here, existing antenna is all different, possess attainable electrical property and good manufacturability.In addition, at V-band and E wave band, there is no ripe referential flat plate array antenna designing technique yet.
Utility model content
For the defect existing in prior art, the purpose of this utility model is to provide a kind of loss low, and processing assembling is simple, the flat plate array antenna of working band wide ranges.
For reaching above object, the utility model adopts following technical scheme.
A flat plate array antenna, the frequency range for 10GHz～100GHz, is characterized in that, comprising: plane sheet reflector, the waveguide power divider being connected with plane sheet reflector signal output part, and the antenna radiation unit being connected with waveguide power divider signal;
Described plane sheet reflector has the reflection side that multiple spot seamlessly transits, and this reflection side is positioned at the H face of flat plate array antenna, does amplitude weighting distribute for flat plate array antenna H face;
Described waveguide power divider is connected to one end of reflection side, and is positioned at the E face of flat plate array antenna, does constant amplitude distribute for flat plate array antenna E face;
Described antenna radiation unit comprises rectangular waveguide, and with the medium grid of rectangular waveguide quadrature assembling.
As further illustrating of such scheme, described waveguide power divider is that waveguide length-width ratio is not less than 30 super model waveguide power divider.
As further illustrating of such scheme, the rectangular waveguide in described antenna radiation unit is that metal bar insertion cavity wall is installed the cavity structure of rear formation, and the opening of this cavity structure is horn-like; Described medium grid quadrature is inserted on the opening of cavity structure.
Compared with prior art, the high frequency flat plate array antenna that the utility model provides has following beneficial effect:
One, antenna radiation unit forms even grid tree structure by rectangular waveguide and the medium grid of quadrature, makes the loss of antenna very low, when guaranteeing antenna radiation unit gain itself, also possesses very large working band width.In addition, this grid tree structure that connects greatly reduces the required precision of processing and assembling, and is applicable to very much adopting plastic shaping to add coat of metal technique, and processing cost is very low, very light in weight.
Two, because waveguide power divider is that waveguide length-width ratio is not less than 30 super model waveguide power divider, during for high-frequency transmission, loss meeting is very little, effectively reduces the microwave transmission loss of this frequency range, guarantees the gain of antenna array integral body.Meanwhile, utilize waveguide power divider that 1 road signal is divided into the antenna radiation unit that multiple signals are exported to end, the constant amplitude that has realized aerial array E face distributes.
Accompanying drawing explanation
Figure 1 shows that the flat plate array antenna structural representation that the utility model provides;
Figure 2 shows that plane sheet reflector structural representation;
Figure 3 shows that waveguide power divider structural representation;
Figure 4 shows that antenna radiation unit structural representation;
Figure 5 shows that standing wave stickogram;
Figure 6 shows that radiation pattern.
Description of reference numerals:
1, plane sheet reflector, 2, waveguide power divider, 3, antenna radiation unit;
11, reflection side;
31, rectangular waveguide, 32, medium grid.
Embodiment
For convenience of those of ordinary skills, understand better the utility model essence, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, a kind of flat plate array antenna, for the frequency range of 10GHz～100GHz, by plane sheet reflector 1, waveguide power divider 2 and antenna radiation unit 3 cascades form.Flat plate array antenna input port adopts WR/15 standard waveguide (3.16 * 1.88mm
2) feed, input port connects the amplitude distribution that plane sheet reflector 1 is realized H face, and plane sheet reflector 1 rear end connects waveguide power divider 2 and realizes power division, and flat plate array antenna terminal adopts rectangular waveguide to add the antenna radiation unit 3 of medium grid.With existing technology comparison, the aerial loss of this form is low, and technological requirement is simple, and requirement on machining accuracy is not high, and manufacturability is good, is suitable for adopting dielectric material to reach the object of cost degradation, is a kind of extraordinary high frequency flat plate array antenna solution.
Wherein, as shown in Figure 2, described plane sheet reflector 1 has the reflection side 11 that multiple spot seamlessly transits, and this reflection side 11 is positioned at the H face of flat plate array antenna, does amplitude weighting distribute for flat plate array antenna H face.During actual preparation, respectively seamlessly transit and a little considered to determine after phase compensation on reflection side 11, each merit minute minor matters that it is waveguide power divider 2 provide the ripple of same phase.
As shown in Figure 3, described waveguide power divider 2 is arranged in flat plate array antenna E face, and its waveguide length-width ratio is not less than 30.Adopt the benefit of this waveguide power divider to be, effectively reduce the microwave transmission loss of this frequency range, guarantee the gain of antenna array integral body.Simultaneously, because waveguide power divider is positioned at the rear end that plane sheet reflector reflects side, signal, by reflecting after side reflection output, enters waveguide power divider, 1 road signal is divided into the antenna radiation unit that multiple signals are exported to end, and the constant amplitude that has realized aerial array E face distributes.
As shown in Figure 4, described antenna radiation unit 3 is fitted together into and is connected grid tree structure by rectangular waveguide 31 and medium grid 32, and described rectangular waveguide 31 is installed the cavity structure of rear formation for metal bar inserts cavity wall, and the opening of this cavity structure is horn-like; Described medium grid 32 quadratures are inserted on the opening of cavity structure.Antenna radiation unit adopts and connects grid tree structure, greatly reduces the required precision of processing and assembling, is particularly suitable for adopting plastic shaping to add coat of metal technique, and processing cost is very low, simultaneously very light in weight.
Figure 5 shows that the present embodiment makes a standing wave reflection coefficient test result of flat plate array antenna, as can be seen from the figure, in an operating frequency range of 50GHz～70GHz, standing wave reflection loss is lower than 4dB.
Figure 6 shows that the present embodiment makes the antenna pattern of flat plate array antenna, as can be seen from the figure: main lobe width is no more than 80 °, and Sidelobe Suppression is obvious, whole radiated wave good directionality, and antijamming capability is strong.
Above embodiment has been described in detail essence of the present utility model, but can not to protection range of the present utility model, limit with this.In every case according to the essence of the utility model, the simple modifications of doing, modification or equivalent transformation, within all dropping on claim protection range of the present utility model.
Claims (3)
1. flat plate array antenna, the frequency range for 10GHz～100GHz, is characterized in that, comprising: plane sheet reflector, the waveguide power divider being connected with plane sheet reflector signal output part, and the antenna radiation unit being connected with waveguide power divider signal;
Described plane sheet reflector has the reflection side that multiple spot seamlessly transits, and this reflection side is positioned at the H face of flat plate array antenna, does amplitude weighting distribute for flat plate array antenna H face;
Described waveguide power divider is connected to one end of reflection side, and is positioned at the E face of flat plate array antenna, does constant amplitude distribute for flat plate array antenna E face;
Described antenna radiation unit comprises rectangular waveguide, and with the medium grid of rectangular waveguide quadrature assembling.
2. flat plate array antenna according to claim 1, is characterized in that, described waveguide power divider is that waveguide length-width ratio is not less than 30 super model waveguide power divider.
3. flat plate array antenna according to claim 1, is characterized in that, the rectangular waveguide in described antenna radiation unit is that metal bar insertion cavity wall is installed the cavity structure of rear formation, and the opening of this cavity structure is horn-like; Described medium grid quadrature is inserted on the opening of cavity structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225695.9U CN203826563U (en) | 2014-05-04 | 2014-05-04 | A planar array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225695.9U CN203826563U (en) | 2014-05-04 | 2014-05-04 | A planar array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826563U true CN203826563U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420225695.9U Withdrawn - After Issue CN203826563U (en) | 2014-05-04 | 2014-05-04 | A planar array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956586A (en) * | 2014-05-04 | 2014-07-30 | 广东盛路通信科技股份有限公司 | Flat panel array antenna |
-
2014
- 2014-05-04 CN CN201420225695.9U patent/CN203826563U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956586A (en) * | 2014-05-04 | 2014-07-30 | 广东盛路通信科技股份有限公司 | Flat panel array antenna |
| CN103956586B (en) * | 2014-05-04 | 2016-08-24 | 广东盛路通信科技股份有限公司 | Flat plate array antenna |
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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 |
Granted publication date: 20140910 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |