CN105337048A - Ultra-short wave communication antenna array - Google Patents
Ultra-short wave communication antenna array Download PDFInfo
- Publication number
- CN105337048A CN105337048A CN201510655124.8A CN201510655124A CN105337048A CN 105337048 A CN105337048 A CN 105337048A CN 201510655124 A CN201510655124 A CN 201510655124A CN 105337048 A CN105337048 A CN 105337048A
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- China
- Prior art keywords
- antenna
- sleeve
- radiant body
- antenna array
- glass fibre
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
Abstract
The invention provides an ultra-short wave communication antenna array which comprises an axial antenna array, an antenna internal grounding pole and fiberglass supports. The axial antenna array comprises three exactly-same antenna units which are connected in series at equal intervals; the fiberglass supports are respectively a hollow cylinder and are coaxially and fixedly connected between adjacent two antenna units respectively; the antenna internal grounding pole coaxially runs through the three antenna units and two fiberglass supports; and the height of the antenna internal grounding pole is larger than the overall height of the three antenna units and the two fiberglass supports, and the diameter thereof is smaller than the inner diameter of an inner sleeve. The land occupation area of the antenna array is reduced; good radiation characteristics are obtained; the gain is improved compared with that of the unit antenna; and by controlling phase and amplitude of unit antenna feed, controllable beam pointing can be realized.
Description
Technical field
The present invention relates to a kind of wideband axis to uniform straight line array, for ultra short wave communication, realize high-gain and the lobin of antenna.
Background technology
Ultrashort wave frequency band, as the important frequency range of mobile communication, mainly utilizes line-of-sight propagation mode, and the impact by season and day-night change is less, and particularly when tackling major natural disasters, omnidirectional's ultrashort wave mobile communication shows incomparable advantage.Usual wideband omnidirectional antenna adopts the form of bipyramid, and biconical antenna is proposed by Schelkunoff the earliest, owing to himself having grading structure form and horizontally rotating symmetry, and has good broadband character and omnidirectional's characteristic.But ultrashort wave antenna has the shortcomings such as size is comparatively large, omnidirectional's ultrashort wave antenna gain is lower, limits widely using of ultra short wave communication.In order to the gain improving antenna adopts the form of uniform straight line array usually, but this group battle array mode takies ground space comparatively greatly, mobile communication platform uses limited.
Simultaneously along with the development of navigation, the communication technology, on existing mobile communication platform, the electronic equipment of all kinds of advanced person is on the increase, and causes that antenna on platform stands in great numbers, difficulty in installation and layout, the outstanding problems such as Electro Magnetic Compatibility, each element antenna performance cannot realize optimum, and antijamming capability is very poor simultaneously.
The U.S. successively successfully have developed synthesization, integrated ultrashort wave antenna battle array on some communication mobile platform.Adopt this antenna array can effectively improve antenna gain, improve the poor problem of modern communications electromagnetic compatible environment, the unfavorable factor that the electrical property brought after simultaneously overcoming array antenna cascade inner cross-under ground Metallic rod worsens.But due to blockade on new techniques, the ultra short wave communication antenna array that China is never similar.
Chinese patent " a kind of bar VHF/UHF broad-band antenna " (CN201410535736) discloses a kind of bar antenna of bipyramid colleting deformation, little, lightweight compared with common bipyramid antenna volume, but the gain of this antenna is limited.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of axial uniform straight line array be made up of broadband bar element antenna, can effectively reducing unit and antenna array volume, realize the integrated of antenna, and improve the gain of antenna.
The technical solution adopted for the present invention to solve the technical problems is: comprise axial antenna array, inner antenna earth brace and glass fibre reinforced plastic support.
Described axial antenna array comprises three identical antenna elements of equidistantly serial connection; Described antenna element comprises radiant body, ectoparasitism sleeve, inner sleeve, fiberglass base and transmitting-receiving control circuit; Described radiant body comprises bipyramid and thick oscillator, described bipyramid is two round platform conductor surfaces of coaxial line, and the upper bottom surface of two round platforms is relative, the bus of two round platforms is equal with the angle of axis, the bottom surface of two round platforms connects isodiametric thick oscillator respectively, outside bipyramid, cover has coaxial ectoparasitism sleeve, and the height of ectoparasitism sleeve is less than the height of bipyramid; Radiant body inside is embedded with coaxial inner sleeve, and inner sleeve is divided into upper and lower two parts, and total height is less than radiant body height, and two parts up and down of inner sleeve are connected with two upper bottom surfaces of bipyramid respectively; Be connected bottom antenna radiator fiberglass base, and bottom transmitting-receiving control circuit integrated on fiberglass base is connected with the feeder line of radiant body; Described glass fibre reinforced plastic support is hollow circuit cylinder, is coaxially connected between adjacent two antenna elements; Described inner antenna earth brace coaxially runs through three antenna elements and two glass fibre reinforced plastic supports, and be highly greater than the total height of three antenna elements and two glass fibre reinforced plastic supports, diameter is less than inner sleeve internal diameter.
Described radiant body, ectoparasitism sleeve, inner antenna earth brace and inner sleeve all adopt hollow metal post.
The internal diameter of described glass fibre reinforced plastic support is greater than inner antenna earth brace external diameter, and the external diameter of glass fibre reinforced plastic support is greater than the radius of the fiberglass base of antenna element.
The bus of described round platform and the angle of axis are 37 °.
Be connected by short circuit metallic ring between described radiant body with inner antenna earth brace.
Described ectoparasitism sleeve is not connected with radiant body, and the diameter of ectoparasitism sleeve is greater than the diameter of radiant body.
The invention has the beneficial effects as follows:
The first, the present invention adopts the group formation formula of axial uniform straight line array, greatly reduces the floor space of antenna array compared with generic homogeneous line array.
The second, the present invention by regulating the height of glass fibre reinforced plastic support to change the spacing between array element, thus obtains good radiation characteristic, and gain is improved compared with element antenna; By phase place and the amplitude of control unit antenna feed, beam position can be realized controlled.
Accompanying drawing explanation
Fig. 1 is whole antenna array end view;
Fig. 2 is antenna element end view;
Fig. 3 is glass fibre reinforced plastic support top view;
Fig. 4 is antenna array actual measurement and emulation standing wave pattern;
Fig. 5 is the amplitude homophase feed emulation directional diagrams such as antenna array element, and wherein, (a) is 1fMHz, and (b) is 3fMHz, and (c) is 5fMHz.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described, the present invention includes but be not limited only to following embodiment.
The present invention includes axial antenna array, inner antenna earth brace, glass fibre reinforced plastic support.
Described axial antenna array comprises equally spaced three identical antenna elements.Described antenna element form is consistent with the antenna form described in patent " a kind of bar VHF/UHF broad-band antenna ".Antenna element comprises radiant body, ectoparasitism sleeve, inner sleeve, fiberglass base and transmitting-receiving control circuit.Described inner antenna earth brace runs through three antenna elements, and coaxial with radiant body, and it is highly greater than axial antenna array height, and its diameter is less than inner sleeve.Described glass fibre reinforced plastic support is the cylinder that two wall thickness are very thick, play the effect of fixed antenna unit, between three antenna elements, upper bottom surface all tightly connects with antenna element, by adjusting the Level Change array element distance of glass fibre reinforced plastic support, obtain good radiation characteristic.Itself and radiant body are coaxial, and inner antenna earth brace runs through described glass fibre reinforced plastic support.Receive and dispatch control circuit bottom antenna element and comprise the assemblies such as radio-frequency (RF) coaxial switch, low noise amplifier, phase shifter, the multiplexing and wave beam control with the transmitting-receiving realizing antenna.
Described radiant body, ectoparasitism sleeve, inner antenna earth brace and inner sleeve all adopt hollow metal post.
The internal diameter of described glass fibre reinforced plastic support is greater than inner antenna earth brace, and its external diameter is greater than the radius of the fiberglass base of antenna element.
Embodiments of the invention as shown in Figure 1, are made up of axial antenna array 1, inner antenna earth brace 2, glass fibre reinforced plastic support 3.
Antenna array 1 is made up of equally spaced three identical antenna elements 4, and antenna element 4 comprises radiant body 5, ectoparasitism sleeve 6, inner sleeve 7, fiberglass base 8 and transmitting-receiving control circuit 9.Antenna adopts the mode of middle part feed, and the heart yearn of SMA coaxial cable is connected with radiant body top, and outer conductor is connected with the latter half.The other end of feeder line is connected on the transmitting-receiving control circuit 9 bottom antenna element 4, and it is integrated in the back side of fiberglass base 8.In the present invention, the cone angle of antenna element is about 74 °.
Inner antenna earth brace 2 runs through three antenna elements 4, coaxial with radiant body 5, and it is highly greater than axial antenna array 1.SMA coaxial cable passes from inner antenna earth brace 2, and it can shield SMA coaxial cable and leak the electromagnetic signal of penetrating.
Glass fibre reinforced plastic support 3 is cylinder barrels that two wall thickness are thicker, and internal diameter b is greater than inner antenna earth brace 2, and external diameter a is greater than the radius of fiberglass base 8.It is highly radiant body height half and and radiant body coaxial, between three antenna elements, upper bottom surface all with antenna element tight joint, inner antenna earth brace 2 passes from glass fibre reinforced plastic support 3, thus forms whole ultra short wave communication bar battle array.The height H of glass fibre reinforced plastic support 3 determines the array element distance of antenna element 4, and coupling when H is less between antenna element is comparatively large, causes antenna element impedance to be deteriorated; When H is larger, the far-field pattern of antenna array 1 can produce distortion, therefore needs the height H optimizing glass fibre reinforced plastic support.In this example, the internal diameter b=5cm of glass fibre reinforced plastic support 3, external diameter a=40cm, can obtain good radiation characteristic during height H=50cm.
Three SMA coaxial cables of antenna element 4 all pass from inner antenna earth brace 2.
In order to optimize the impedance operator of antenna element further, radiant body 5 is connected with inner antenna earth brace 2.
At transmitting-receiving control circuit 9 assemblies such as fiberglass base 8 back side, each antenna element 4 lower end arrangement radio-frequency (RF) coaxial switch, low noise amplifiers, multiplexing with the transmitting-receiving realizing antenna.Adjustable phase shifter is set bottom each antenna element simultaneously, in order to change the phase place of each antenna element, changes the feed amplitude of unit simultaneously, realize far field radiation pattern lobin.
Adopt the ultra short wave communication bar antenna array of this implementation method, after antenna element group battle array, the bandwidth of standing-wave ratio below 3 can reach more than 5 octaves, realizing multiple frequency broad band work, solving the problem adopting axial uniform straight line array to leak the electromagnetic signal penalty after the inner cross-under the thin end of the scroll of radiant body penetrated to shield upper antenna feeder line simultaneously.Adopt the form of this kind of uniform straight line array, greatly reduce the floor space of array antenna, improve antenna gain and realize lobin, simultaneously can be conformal with mobile communication platform upper mast.
Claims (6)
1. a ultra short wave communication antenna array, comprises axial antenna array, inner antenna earth brace and glass fibre reinforced plastic support, it is characterized in that: described axial antenna array comprises three identical antenna elements of equidistantly serial connection; Described antenna element comprises radiant body, ectoparasitism sleeve, inner sleeve, fiberglass base and transmitting-receiving control circuit; Described radiant body comprises bipyramid and thick oscillator, described bipyramid is two round platform conductor surfaces of coaxial line, and the upper bottom surface of two round platforms is relative, the bus of two round platforms is equal with the angle of axis, the bottom surface of two round platforms connects isodiametric thick oscillator respectively, outside bipyramid, cover has coaxial ectoparasitism sleeve, and the height of ectoparasitism sleeve is less than the height of bipyramid; Radiant body inside is embedded with coaxial inner sleeve, and inner sleeve is divided into upper and lower two parts, and total height is less than radiant body height, and two parts up and down of inner sleeve are connected with two upper bottom surfaces of bipyramid respectively; Be connected bottom antenna radiator fiberglass base, and bottom transmitting-receiving control circuit integrated on fiberglass base is connected with the feeder line of radiant body; Described glass fibre reinforced plastic support is hollow circuit cylinder, is coaxially connected between adjacent two antenna elements; Described inner antenna earth brace coaxially runs through three antenna elements and two glass fibre reinforced plastic supports, and be highly greater than the total height of three antenna elements and two glass fibre reinforced plastic supports, diameter is less than inner sleeve internal diameter.
2. ultra short wave communication antenna array according to claim 1, is characterized in that: described radiant body, ectoparasitism sleeve, inner antenna earth brace and inner sleeve all adopt hollow metal post.
3. ultra short wave communication antenna array according to claim 1, is characterized in that: the internal diameter of described glass fibre reinforced plastic support is greater than inner antenna earth brace external diameter, and the external diameter of glass fibre reinforced plastic support is greater than the radius of the fiberglass base of antenna element.
4. ultra short wave communication antenna array according to claim 1, is characterized in that: the bus of described round platform and the angle of axis are 37 °.
5. ultra short wave communication antenna array according to claim 1, be is characterized in that: be connected by short circuit metallic ring between described radiant body with inner antenna earth brace.
6. ultra short wave communication antenna array according to claim 1, is characterized in that: described ectoparasitism sleeve is not connected with radiant body, and the diameter of ectoparasitism sleeve is greater than the diameter of radiant body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655124.8A CN105337048A (en) | 2015-10-12 | 2015-10-12 | Ultra-short wave communication antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655124.8A CN105337048A (en) | 2015-10-12 | 2015-10-12 | Ultra-short wave communication antenna array |
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| Publication Number | Publication Date |
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| CN105337048A true CN105337048A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510655124.8A Pending CN105337048A (en) | 2015-10-12 | 2015-10-12 | Ultra-short wave communication antenna array |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832279A (en) * | 2018-06-05 | 2018-11-16 | 北京星网锐捷网络技术有限公司 | Omnidirectional antenna and angle of radiation switching method |
| CN114050405A (en) * | 2021-12-31 | 2022-02-15 | 陕西海积信息科技有限公司 | Linear array vehicle-mounted antenna and equipment |
| CN114094321A (en) * | 2021-12-31 | 2022-02-25 | 陕西海积信息科技有限公司 | Antenna device and communication apparatus thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201853799U (en) * | 2010-10-28 | 2011-06-01 | 江苏安特耐科技有限公司 | Four-unit double cone oscillator street lamp antenna |
| CN102104189A (en) * | 2010-12-06 | 2011-06-22 | 大连海事大学 | High-gain omnidirectional circularly-polarized antenna |
| CN104319459A (en) * | 2014-10-11 | 2015-01-28 | 中国电子科技集团公司第二十研究所 | Cross rod VHF/UHF wide-band antenna |
| CN104410433A (en) * | 2014-11-19 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | A multi-frequency-band electromagnetic integrated mast |
-
2015
- 2015-10-12 CN CN201510655124.8A patent/CN105337048A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201853799U (en) * | 2010-10-28 | 2011-06-01 | 江苏安特耐科技有限公司 | Four-unit double cone oscillator street lamp antenna |
| CN102104189A (en) * | 2010-12-06 | 2011-06-22 | 大连海事大学 | High-gain omnidirectional circularly-polarized antenna |
| CN104319459A (en) * | 2014-10-11 | 2015-01-28 | 中国电子科技集团公司第二十研究所 | Cross rod VHF/UHF wide-band antenna |
| CN104410433A (en) * | 2014-11-19 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | A multi-frequency-band electromagnetic integrated mast |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832279A (en) * | 2018-06-05 | 2018-11-16 | 北京星网锐捷网络技术有限公司 | Omnidirectional antenna and angle of radiation switching method |
| CN114050405A (en) * | 2021-12-31 | 2022-02-15 | 陕西海积信息科技有限公司 | Linear array vehicle-mounted antenna and equipment |
| CN114094321A (en) * | 2021-12-31 | 2022-02-25 | 陕西海积信息科技有限公司 | Antenna device and communication apparatus thereof |
| CN114094321B (en) * | 2021-12-31 | 2022-04-26 | 陕西海积信息科技有限公司 | Antenna device and communication apparatus thereof |
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Application publication date: 20160217 |