CN204375964U - Two-dimensional electron scanning antenna - Google Patents
Two-dimensional electron scanning antenna Download PDFInfo
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- CN204375964U CN204375964U CN201420709300.2U CN201420709300U CN204375964U CN 204375964 U CN204375964 U CN 204375964U CN 201420709300 U CN201420709300 U CN 201420709300U CN 204375964 U CN204375964 U CN 204375964U
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Abstract
The utility model discloses a kind of Two-dimensional electron scanning antenna, comprise, the two-dimensional antenna array be made up of at least 2 group radiating element groups, described radiating element group at least comprises 2 radiating elements, also comprise: first transmission line corresponding with described radiating element group, each described first transmission line is connected with 2 radiating elements in one group of radiating element group, for adjusting the phase place of described 2 radiating elements simultaneously.The utility model overcomes the baroque shortcoming of existing Two-dimensional electron scanning antenna, has simplified the composition device to antenna.
Description
Technical field
The utility model belongs to the antenna technology of observing and controlling, the communications field, relates to a kind of Two-dimensional electron scanning antenna, particularly a kind of Two-dimensional electron scanning antenna based on radio-frequency (RF) switch.
Background technology
For the antenna of fixed beam, between antenna gain and beam coverage, there is contradiction.Generally speaking, antenna gain is higher, then the angular domain scope of antenna beam covering is less.Therefore, in order to solve above-mentioned contradiction, usual employing two kinds of methods: one be by astronomical cycle on servomechanism installation, the mechanical scanning of antenna beam is realized by the rotation of servomechanism, but, servomechanism makes the volume and weight of antenna greatly increase, and antenna beam scanning speed is subject to the restriction of servomechanism; Another kind of way is the form adopting phased array antenna, by the electronic scanning of the control realization synthesis wave beam of each radiating element excitation phase of pair array antenna, although phased array antenna has, sweep speed is fast, wave beam controls the features such as flexible, but need multiple phase shifting equipment, complexity is higher, and cost is higher.
Therefore, a kind of Two-dimensional electron antenna that can overcome the problems referred to above is needed.
Utility model content
In view of this, for overcoming at least one shortcoming above-mentioned, and following at least one advantage is provided.The utility model discloses a kind of Two-dimensional electron scanning antenna, overcome the baroque shortcoming of existing Two-dimensional electron scanning antenna, simplify the composition device to antenna.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
The utility model discloses a kind of Two-dimensional electron scanning antenna, comprise, the two-dimensional antenna array be made up of at least 2 group radiating element groups, described radiating element group at least comprises 2 radiating elements, also comprise: first transmission line corresponding with described radiating element group, each described first transmission line is connected with 2 radiating elements in one group of radiating element group, for adjusting the phase place of described 2 radiating elements simultaneously.
Further, described first transmission line adjusts the phase place of described 2 radiating elements simultaneously by first phase adjusting portion.
Further, described two-dimensional antenna array comprises 2 groups of radiating element groups, often organize described radiating element group and comprise 3 radiating elements, described antenna also comprises the second transmission line, for being connected with the 3rd radiating element in radiating element group between described 2 radiating elements, described first transmission line being connected to same radiating element group is connected with input/output terminal by power splitter/mixer with described second transmission line.
Further, described first phase adjusting portion is the electronic switch with multiple tap.
Further, also wrap the second gating tap, described power splitter/mixer is connected with described input/output terminal by described second gating tap.
Further, described second gating tap is the electronic switch with multiple tap.
Known by technique scheme, there is useful technique effect, comprising:
The first order one dimension feeding network consisted of the first transmission line can the wave beam of rapid adjustment antenna, and the easy switching time is simple, meanwhile, adopt the utility model to realize the antenna ratio of beam scanning comparatively with employing servomechanism, there is the advantage that equipment complexity is low, low in energy consumption.
Further, the wave beam number of the antenna that the utility model realizes and radiating element number have nothing to do, and are convenient to expansion wave beam number, reduce beam saltus, improve the antenna gain covered in angular domain.And the feedback network network topological structure of the first order be made up of respectively the first transmission line and the second transmission line and the second level is simple, and switch number is few, is convenient to the realization of filter with low insertion loss, low-power consumption feeding network.
Meanwhile, the utility model can realize the two-dimensional scan of array antenna beam, has higher gain and wider beam coverage, can be applicable to observing and controlling, the communications field.
Accompanying drawing explanation
Fig. 1 is the utility model first embodiment 12 wave beam 3 × 3 array antenna schematic diagram;
Fig. 2 is the first order one dimension feeding network schematic diagram in the utility model first embodiment;
Fig. 3 is the second level one dimension feeding network schematic diagram in the utility model first embodiment;
Fig. 4 is the second embodiment 16 wave beam 2 × 2 array antenna schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is the utility model first embodiment 12 wave beam 3 × 3 array antenna schematic diagram;
With reference to figure 1, the antenna assembly of the utility model embodiment comprises the aerial array be made up of 9 radiating elements.9 radiating elements are divided into three groups, i.e. 3 radiating element groups, and arrange according to mode shown in Fig. 1, thus form a two-dimensional antenna array.
Meanwhile, this antenna assembly also comprises the two-dimentional feeding network that a single port inputs, 9 ports export be connected with this two-dimensional antenna array, and this two-dimentional feeding network can be divided into the first transmission line and the second transmission line, thus forms two stage feeding network.
Be divided into 3 groups radiation single-ended, adopt 3 × 3 rectangular grid arrangement mode, group radiating element group identifiable design of is wherein made up of the radiating element of arranging in X direction in Fig. 1.For 2 radiating elements being positioned at both sides in one group of radiating element, be configured with first transmission line, each in the two ends of this first transmission line is connected with a radiating element respectively, thus the phase place of these 2 radiating elements integrally can be regulated.This first transmission line is configured with first phase adjusting portion, and this phase adjusted portion has multiple phase adjusted gear, corresponding to different phase adjusted gears, can adjust the phase place of 2 radiating elements be connected with the first transmission line simultaneously simultaneously.In the utility model embodiment, first phase adjusting portion is for having the gating tap of multiple gear, and therefore, each can the gear of gating to be arranged at gating tap, can realize phase adjusted while 2 radiating elements.
Correspond to the residual radiation unit often organized and be not connected with the first transmission line in radiating element group, the utility model embodiment is also furnished with the second transmission line (can be designated as phase compensation section), thus this second transmission line can be utilized to control above-mentioned residual radiation unit.
In the utility model embodiment, above-mentioned first transmission line and the second transmission line form a part for one-level feeding network jointly.Accordingly, this grade of feeding network also comprises power splitter/mixer (be designated as first order power splitter/mixer, the effect of its power splitter or mixer is defined for the input or output direction of signal respectively).Therefore, for this aerial array as being transfused to end (namely as transmitting antenna), then the first power splitter/mixer is identified as the state working in power splitter, when input signal, by the first power splitter, input signal is transferred to the first transmission line and the second transmission line respectively.Arranged by the gear of the first transmission line and the corresponding gating tap of first phase adjusting portion, can modulate the phase place of 2 radiating elements be connected with the first transmission line simultaneously, and in the utility model embodiment, the second transmission line (phase compensation section) be connected with the radiating element be not connected with the first transmission line can be used for compensating and transmits phase place, in the middle of ensureing, the excitation phase of radiating element is the mean value of both sides radiating element excitation phase, and in the middle of ensureing, the excitation phase of row radiating element is the mean value of other two row radiating element excitation phases.
Corresponding with above-mentioned first power splitter, when utilizing above-mentioned antenna array receiver antenna, first power splitter/mixer is identified as the state working in mixer, and the gear set by phase adjusted portion adjusted further on the first transmission line, adjustable is as antenna phase during reception antenna, and owing to flowing to as reception antenna and the signal as transmitting antenna with phase, therefore, when as reception antenna, signal on the first transmission line and the second transmission line is with during as transmitting antenna, and the signal on the first transmission line and the second transmission line is just in time contrary.
Corresponding with foregoing description, adopt all identical connected mode at Fig. 1 along each radiating element group of Y-direction.What distinguish to some extent is, jointly be connected to one along the radiating element group (being designated as the first radiating element group) Y-direction being in the top with the port of the process mixer/power splitter being separately in radiating element group (being designated as the 3rd radiating element) bottom and there is multitap electronic switch, the port of the first order mixer/power splitter of the radiating element group (being designated as the second radiating element group) between the first radiating element group and the 3rd radiating element group is then connected to a second level mixer/power splitter jointly with the above-mentioned adjustable side with multitap electronic switch, be connected with the input/output end port of antenna by this second level mixer/power splitter.Input/the output of aforementioned second level power splitter/mixer is input/output that whole electronics switches two-dimensional scan order multiple-beam array antenna.
Fig. 2 is the first order one dimension feeding network schematic diagram in the utility model first embodiment;
Fig. 3 is the second level one dimension feeding network schematic diagram in the utility model first embodiment;
With further reference to Fig. 2, figure 2 illustrates the connection layout organizing the first transmission line that each radiating element in radiating element group is connected and the second transmission line with each.This first transmission line and the second transmission line and mixer/power splitter form first order one dimension feeding network jointly.
With reference to figure 3, by the many taps electronic switch be connected with the 3rd radiating element group with the first radiating element group with and the feeder line that is connected with the second radiating element group jointly form through one mixer/power splitter, thus form the second level one dimension feeding network of the utility model embodiment.Overall adjustment can be carried out to the input and output of radiating element group by this second level one dimension feeding network.
By above-mentioned first order one dimension feeding network and second level one dimension feeding network, phase adjusted can be carried out to the individual each radiating element in the one group of radiating element group be attached thereto simultaneously, avoid separately certain radiating element is carried out phase-adjusted loaded down with trivial details.
In the above-described embodiments, each one dimension feeding network and corresponding radiating element form the order multi-beam antenna of one-dimensional scanning, two-stage feeding network and corresponding radiating element form the order multi-beam antenna of two dimensional searches, switched by the strobe state of control circuit to each radio frequency electric switch, the Two-dimensional electron scanning of wave beam can be realized.
The gating tap determining positions on the transmission line phase difference at transmission line two ends.By adjusting the length of transmission line between gating tap in first order one dimension feeding network, the excitation phase that can change every a line both sides radiating element is poor, thus the X-direction beam position of pair array controls.By adjusting the length of transmission line between gating tap in the one dimension feeding network of the second level, the excitation phase that can change the first row and the third line radiating element is poor, thus the Y direction beam position of pair array controls.
Phase compensation section can be used for compensating the transmission phase difference of input port/output port to different radiating element.By phase compensation segment length dx in adjustment first order one dimension feeding network, can ensure that the excitation phase of each interline radiating element is the mean value of both sides radiating element excitation phase.By phase compensation segment length dy in the one dimension feeding network of the adjustment second level, can ensure that the excitation phase of middle row radiating element is the mean value of other two row radiating element excitation phases.
In the above-described embodiments, radiating element have employed microstrip antenna form, and the antenna of other type also can be adopted as radiating element.
In the above-described embodiments, power splitter/mixer have employed constant power and distributes, and unequal power also can be adopted to distribute, realize encouraging the amplitude weighting of aerial array.
Wave beam number of the present utility model and radiating element number have nothing to do, only relevant with the port number of two-stage electronic switch.If two-stage electronic switch is respectively hilted broadsword M1 and throws and throw with hilted broadsword M2, then wave beam number is M1 × M2.In the above-described embodiments, first order electronic switch (phase adjusted portion) can be hilted broadsword four-throw, and second level electronic switch (multitap electronic switch) can be SP3T, and the wave beam number that can be formed is 4 × 3=12.
The forms such as the interchangeable employing 2 × 2,2 × 3,3 × 2 of the radiating element layout in the utility model embodiment.
Fig. 4 is the second embodiment 16 wave beam 2 × 2 array antenna schematic diagram of the present utility model.
With reference to figure 4, be 2 × 2 array antenna schematic diagrames in utility model embodiment, this 2 × 2 array antenna, as the variant of above-mentioned 3 × 3 array antennas, only has 2 groups of radiating element groups, and often organizes in radiating element group and only have 2 radiating elements.Thus each radiating element group corresponded in this embodiment, only adopt above-mentioned first transmission line to connect two radiating elements in one group of radiating element group, and connect by tap electronic switch more than 2 the first transmission lines be connected with these two groups of radiating element groups.
This embodiment have employed the array layout of 2 × 2, eliminates the first order power splitter/mixer in two-stage one dimension feeding network.In addition, in the present embodiment, two-stage electronic switch is hilted broadsword four-throw, and the wave beam number that can be formed is 4 × 4=16.
The foregoing is only preferred embodiment of the present utility model, be not used for limiting protection range of the present utility model.For a person skilled in the art, under the prerequisite not paying creative work, can make some amendments and replacement to the utility model, all such modifications and replacement all should be encompassed within protection range of the present utility model.
Claims (6)
1. a Two-dimensional electron scanning antenna, comprise, the two-dimensional antenna array be made up of at least 2 group radiating element groups, described radiating element group at least comprises 2 radiating elements, it is characterized in that, also comprise: first transmission line corresponding with described radiating element group, each described first transmission line is connected with 2 radiating elements in one group of radiating element group, for adjusting the phase place of described 2 radiating elements simultaneously.
2. antenna as claimed in claim 1, is characterized in that: described first transmission line adjusts the phase place of described 2 radiating elements by first phase adjusting portion simultaneously.
3. antenna as claimed in claim 1 or 2, it is characterized in that: described two-dimensional antenna array comprises 2 groups of radiating element groups, often organize described radiating element group and comprise 3 radiating elements, described antenna also comprises the second transmission line, for being connected with the 3rd radiating element in radiating element group between described 2 radiating elements, described first transmission line being connected to same radiating element group is connected with input/output terminal by power splitter/mixer with described second transmission line.
4. antenna as claimed in claim 2, is characterized in that: described first phase adjusting portion is the electronic switch with multiple tap.
5. antenna as claimed in claim 3, be is characterized in that, also wrap the second gating tap, be connected by described power splitter/mixer by described second gating tap with described input/output terminal.
6. antenna as claimed in claim 5, it is characterized in that, described second gating tap is the electronic switch with multiple tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709300.2U CN204375964U (en) | 2014-11-21 | 2014-11-21 | Two-dimensional electron scanning antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709300.2U CN204375964U (en) | 2014-11-21 | 2014-11-21 | Two-dimensional electron scanning antenna |
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| CN204375964U true CN204375964U (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098362A (en) * | 2015-07-03 | 2015-11-25 | 上海华为技术有限公司 | Multi-beam antaean feed network and multi-beam antenna array |
| CN105680178A (en) * | 2014-11-21 | 2016-06-15 | 航天恒星科技有限公司 | Two-dimensional electronic scanning antenna |
-
2014
- 2014-11-21 CN CN201420709300.2U patent/CN204375964U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680178A (en) * | 2014-11-21 | 2016-06-15 | 航天恒星科技有限公司 | Two-dimensional electronic scanning antenna |
| CN105098362A (en) * | 2015-07-03 | 2015-11-25 | 上海华为技术有限公司 | Multi-beam antaean feed network and multi-beam antenna array |
| WO2017005145A1 (en) * | 2015-07-03 | 2017-01-12 | 华为技术有限公司 | Multi-beam antenna feed network and multi-beam antenna array |
| CN105098362B (en) * | 2015-07-03 | 2018-05-11 | 上海华为技术有限公司 | A kind of multibeam antenna feeding network and multi-beam antenna array |
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