CN102496782B - Omni-directional electronic control scanning antenna based on active frequency selection surfaces - Google Patents
Omni-directional electronic control scanning antenna based on active frequency selection surfaces Download PDFInfo
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- CN102496782B CN102496782B CN201110408303.3A CN201110408303A CN102496782B CN 102496782 B CN102496782 B CN 102496782B CN 201110408303 A CN201110408303 A CN 201110408303A CN 102496782 B CN102496782 B CN 102496782B
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- automatically controlled
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Abstract
The invention discloses an omni-directional electronic control scanning antenna based on active frequency selection surfaces, relating to an electronic control scanning antenna and solving the problem of small electronic control scanning range of the traditional electronic control scanning antenna. The omni-directional electronic control scanning antenna comprises an omni-directional antenna and N same active frequency selection surfaces, wherein the N same active frequency selection surfaces surround the omni-directional antenna and are uniformly distributed by using the omni-directional antenna as a center, and N is a positive integer more than or equal to 3. The invention is suitable for multiple fields such as military use, civil use and the like.
Description
Technical field
The present invention relates to a kind of automatically controlled scanning antenna.
Background technology
Automatically controlled scanning antenna can control antenna directional diagram maximum beam direction, and realize the objects such as multi-beam.In communication, radar, the fields such as electronic countermeasures have a wide range of applications.As smart antenna, phased array antenna etc. can realize similar functions.By automatically controlled scanning, can realize high-gain signal transmitting on a large scale and receive, reduce transmitting power, expand the advantages such as signal area coverage.The wave surface that traditional automatically controlled scanning antenna is realized by phase shifter is often synthetic, thereby has realized scanning, and cost is high, and weight is large, and algorithm is complicated, and sweep limits is narrower, can not realize the automatically controlled scanning of omnidirectional.
Summary of the invention
The present invention is in order to solve the narrow problem of automatically controlled sweep limits of existing automatically controlled scanning antenna, thereby provide a kind of, based on active frequency, selects the automatically controlled scanning antenna of surperficial omnidirectional.
A kind ofly based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it comprises omnidirectional antenna and N identical active frequency selection surface, a described N active frequency is selected surperficial horizontal circle omnidirectional antenna, and described N active frequency selects surface to be uniformly distributed centered by described omnidirectional antenna; Interval between N active frequency selection surface is less than one of them active frequency and selects surperficial width; N is for being more than or equal to 3 positive integers.
Omnidirectional antenna is axial horizontal omnidirectional antenna.
It is that band resistive active frequency is selected surface that active frequency is selected surface.
Active frequency selects surperficial adjustable extent to cover the operating frequency of omnidirectional antenna.
Beneficial effect: automatically controlled scanning angle wider range of the present invention, with respect to existing automatically controlled scanning antenna, the present invention can also select multiple-working mode, has better flexibility.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention; Fig. 2 is the vertical view of Fig. 1; Fig. 3 is the structural representation of frequency-selective surfaces of the present invention; Fig. 4 is automatically controlled scanning theory schematic diagram of the present invention; Fig. 5 is automatically controlled multi-beam principle schematic of the present invention; Fig. 6 is automatically controlled ratio wave beam principle schematic of the present invention.
Embodiment
Embodiment one, in conjunction with Fig. 1 to Fig. 3, present embodiment is described, a kind ofly based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it comprises omnidirectional antenna 1 and N identical active frequency selection surface 2, a described N active frequency is selected surperficial 2 horizontal circle omnidirectional antennas 1, and described N active frequency selects surface 2 to be uniformly distributed centered by described omnidirectional antenna 1; N active frequency selects the interval between surface 2 to be less than the width that one of them active frequency is selected surface 2; N is for being more than or equal to 3 positive integers.
Operation principle: Fig. 3 is the structural representation of a frequency-selective surfaces of the present invention, described each frequency-selective surfaces comprises a plurality of frequency selected cells, described a plurality of frequency selected cell is arranged along direction shown in arrow, in figure, take four unit sequentially arranges as example, in reality, element number can increase and decrease, and its columns can more than row.The present invention selects the bias voltage on surface 2 by adjusting respectively omnidirectional antenna 1 active frequency around, thereby controls microwave signal by the mode of frequency-selective surfaces 2, has reached the object of controlling directional diagram.Based on this principle, this antenna has several working ways.(in figure, a thinks reflecting surface, and b is transmission plane, and outlined arrow is beam direction), selects surperficial reflection frequency to adjust to operating frequency of antenna adjacent component frequency as shown in Figure 4; Simultaneously by the operating state of adjusting to transmission under this frequency of other frequency-selective surfaces, thereby make the directional diagram of antenna be adjusted into sensing transmission direction, realize the function of directional antenna.Thereby the order of changing successively reflecting surface and transmission plane is realized automatically controlled scanning.(in figure, a is reflecting surface, and b is transmission plane, and outlined arrow is beam direction), is adjusted into transmission mode by the frequency-selective surfaces of some direction as shown in Figure 5, and all the other are adjusted into reflective-mode, can realize multi-beam pattern.With front a kind of Pattern Class seemingly, this pattern also can scan.(in figure, a is reflecting surface as shown in Figure 6, b is transmission plane, c is half transmitting face, coarse contour arrow is main beam direction, thin arrow is the second beam direction), frequency-selective surfaces is adjusted into Journalistic pattern on the basis of upper a kind of pattern and can controls the power proportions between multi-beam.
A kind of described in embodiment two, this embodiment and embodiment one selects the difference of the surperficial automatically controlled scanning antenna of omnidirectional to be based on active frequency, omnidirectional antenna 1 is axial horizontal omnidirectional antenna, can be: a kind of in monopole antenna, dipole antenna, biconical antenna or series fed antenna.
A kind of described in embodiment three, this embodiment and embodiment one selects the difference of the surperficial automatically controlled scanning antenna of omnidirectional to be based on active frequency, and it is that band resistive active frequency is selected surface that active frequency is selected surface 2.
A kind of described in embodiment four, this embodiment and embodiment one, two or three selects the difference of the surperficial automatically controlled scanning antenna of omnidirectional to be based on active frequency, and active frequency selects the adjustable extent on surface 2 to cover the operating frequency of omnidirectional antenna 1.
Automatically controlled scanning antenna in present embodiment, adopts six active frequency to select surface 2 around omnidirectional antenna 1.With respect to automatically controlled scanning antenna in the past, cost is low, lightweight, algorithm is simple.
Claims (4)
1. based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional for one kind, it is characterized in that: it comprises omnidirectional antenna (1) and N identical active frequency selection surface (2), described N active frequency selected surface (2) horizontal circle omnidirectional antenna (1), and described N active frequency selects surface (2) to be uniformly distributed centered by described omnidirectional antenna (1); N active frequency selects the interval between surface (2) to be less than the width that one of them active frequency is selected surface (2); N is for being more than or equal to 3 positive integers;
Above-mentionedly a kind ofly based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it can select the bias voltage on surface (2) by adjusting respectively omnidirectional antenna (1) active frequency around, thereby control microwave signal by the mode of frequency-selective surfaces (2), and then control directional diagram.
2. according to claim 1ly a kind ofly based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it is characterized in that omnidirectional antenna (1) is axial horizontal omnidirectional antenna.
3. according to claim 1ly a kind ofly based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it is characterized in that it is that band resistive active frequency is selected surface that active frequency is selected surface (2).
4. according to a kind of described in claim 1,2 or 3, based on active frequency, select the automatically controlled scanning antenna of surperficial omnidirectional, it is characterized in that active frequency selects the adjustable extent on surface (2) to cover the operating frequency of omnidirectional antenna (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408303.3A CN102496782B (en) | 2011-12-09 | 2011-12-09 | Omni-directional electronic control scanning antenna based on active frequency selection surfaces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110408303.3A CN102496782B (en) | 2011-12-09 | 2011-12-09 | Omni-directional electronic control scanning antenna based on active frequency selection surfaces |
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| Publication Number | Publication Date |
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| CN102496782A CN102496782A (en) | 2012-06-13 |
| CN102496782B true CN102496782B (en) | 2014-04-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928763A (en) * | 2014-04-14 | 2014-07-16 | 哈尔滨工业大学 | Multi-beam antenna based on transformation optics |
| CN103943961A (en) * | 2014-04-16 | 2014-07-23 | 厦门大学 | Electric scanning antenna based on space phase shift surface |
| CN105186137A (en) * | 2015-09-29 | 2015-12-23 | 深圳爱新自动化有限公司 | Multi-resonant structure based single-feed anti-multipath adaptive antenna |
| CN108649336B (en) * | 2018-05-17 | 2019-10-25 | 西安电子科技大学 | A kind of super skin antenna in three squints of bireflectance list transmission |
| CN110765687B (en) * | 2019-10-23 | 2022-06-21 | 哈尔滨工业大学 | Vortex beam source synthesis method based on time domain finite difference method |
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2011
- 2011-12-09 CN CN201110408303.3A patent/CN102496782B/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| Liang Zhang等，.Research on tunable general FSS structure without biasing network.《2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference》.2011, * |
| 张桐等,.基于十字形的改进新型频率选择表面.《微波学报》.2010, * |
| 郑书峰等，.频率选择表面天线罩的研究.《2009年全国天线年会论文集》.2009, * |
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