CN103928754A - Broadband V type resistor loading reduced dipole antenna - Google Patents
Broadband V type resistor loading reduced dipole antenna Download PDFInfo
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- CN103928754A CN103928754A CN201410171139.2A CN201410171139A CN103928754A CN 103928754 A CN103928754 A CN 103928754A CN 201410171139 A CN201410171139 A CN 201410171139A CN 103928754 A CN103928754 A CN 103928754A
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Abstract
The invention discloses a broadband V type resistor loading reduced dipole antenna and a manufacturing method of the broadband V type resistor loading reduced dipole antenna. The antenna comprises two radiation arms, a loading resistor, supporting rods and an input port, wherein the two radiation arms are symmetrical to each other and form a V shape. Each radiation arm is composed of two metal wires which are in a trapezoid shape and parallel and symmetrical to each other, the two metal wires are used for improving current distribution on the radiation arm, the radiation arm is expanded by the corresponding supporting rods to form a trapezoid shape, and the radiation arm is provided with two tail ends. The loading resistor is electrically connected with the tail ends of the low ends of the two radiation arms respectively and used for reducing reflection current of the tail ends of the radiation arms, and the tail ends of the high ends of the two radiation arms are led out to form the feed ends of the antenna and used for signal input. The broadband V type resistor loading reduced dipole antenna has the advantages of being simple in structure, small in size, convenient to install and the like, and is suitable for fixed observation or movable observation with limited place sizes.
Description
Technical field
The present invention relates to a kind of antenna that is applied to wideband high-frequency range radar field, especially a kind of minimized wide-band V-type resistance loads amounts to a period of time antenna
Background technology
Broad-band antenna is an important part in range radar system, and its performance directly affects the overall performance of radar system.Wideband high-frequency range radar system adopts broadband frequency sweep code signal or linear FM signal more, therefore requires antenna should have good radiation characteristic and broadband impedance characteristic.The conventional antenna form of wideband high-frequency range radar has resistance to load Delta antenna at present, and resistance loads amounts to a period of time antenna and logarithm periodic antenna etc.In the practical applications such as ionospheric probing, for fabricating yard, there are many restrictions, require antenna size as far as possible little and be convenient to install.At present all very large for the broad-band antenna size of ionospheric probing, as the resistance loading level that is operated in high band amounts to a period of time antenna and is about 30m, floor space is larger, and its low-frequency range radiation characteristic is very poor.Therefore, develop a kind of broad-band antenna of miniaturization, for the development and the application that promote wideband high-frequency range radar technology, have very positive effect.
Summary of the invention
The object of the invention is to improve the deficiency that prior art exists, provide a kind of minimized wide-band V-type resistance to load and amount to a period of time antenna.
The invention provides the V-type resistance loading of a kind of broadband and amount to a period of time antenna, comprise: two radiation arms (2), loading resistor (3), a plurality of support bars (41), (42), (43), (44), input port (1), the identical and symmetrical distribution of described two radiation arms (2) structure; Wherein:
Described radiation arm (2) is opening-like trapezoidal in short base, and it is electrically connected and is formed by two metal wire (21), (22) ends that are the opening-like trapezoidal and Parallel Symmetric in short base; Described radiation arm (2) is opened shape in echelon by four described support bars (41), (42), (43), (44); Described loading resistor (3) is electrically connected at described two radiation arms (2) separately between two ends of low side;
Described two radiation arms (2) separately high-end two ends are drawn rear composition input port (1), as the feed end of described antenna, for the input of signal.
Antenna of the present invention can meet the requirement of wideband high-frequency range radar system, has the features such as miniaturization, broadband, radiation characteristic be good.
Accompanying drawing explanation
Fig. 1 is that minimized wide-band V-type resistance loads the schematic perspective view of amounting to a period of time antenna according to an embodiment of the invention;
Fig. 2 is that minimized wide-band V-type resistance loads the voltage standing wave ratio curve chart of amounting to a period of time antenna according to an embodiment of the invention;
Fig. 3 is that minimized wide-band V-type resistance loads the gain curve figure that amounts to a period of time antenna according to an embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Fig. 1 is that minimized wide-band V-type resistance loads the schematic perspective view of amounting to a period of time antenna according to an embodiment of the invention, as shown in Figure 1, this minimized wide-band V-type resistance loading is amounted to a period of time antenna and is comprised: the first radiation arm and the second radiation arm 2, loading resistor 3, eight support bars 41,42,43,44, with an input port 1, wherein:
Described the first radiation arm and the second radiation arm 2 are trapezoidal, and place, short base is opening-like, and described the first radiation arm is identical with the second radiation arm structure, symmetrical distribution.Described trapezoidal radiation arm 2 consists of the first metal wire 21, the second metal wire 22 and the loading resistor 3 that are trapezoidal and front and back Parallel Symmetric, for improving the CURRENT DISTRIBUTION on described radiation arm 2, the bandwidth of operation of broadening antenna, described the first metal wire 21 is electrically connected at an end of an end of short base open end low side and the low side of described the second metal wire 22, and the first metal wire 21 is electrically connected at another high-end end of another high-end end of short base open end and described the second metal wire 22; Described loading resistor 3 is electrically connected between described the first radiation arm and two ends of the second short base of radiation arm 2 open end low side, for reducing the reflected current on described radiation arm 2, to improve the characteristic of VSWR and the radiation waveform of antenna, the bandwidth of operation of broadening antenna; Resistance on described loading resistor obtains by optimal design; Described the first metal wire 21 and the second metal wire 22 be parallel being supported on four support bars 41～44 respectively, the radiation arm of two parallel opening trapezoidal shapes before and after opening into.
Described the first radiation arm and the second radiation arm 2 are fixed together by insulation ropes and support post 51,52,6, symmetrical trapezoidal to open into two, wherein, two support bars 41,44 of the short base open end of described the first radiation arm and the second radiation arm are fixed on respectively top and the bottom of the first column 6 by insulation ropes, two support bars at closing end place, long limit are fixed on respectively top and the bottom of the second column 51 and the 3rd column 52 by insulation ropes, and described the second column 51 and the second column 52 are symmetrically distributed in respectively the right and left of the first column 6.
Described the first radiation arm and two high-end ends of the second short base of radiation arm 2 open end are drawn and are formed input port 1, as the feed end of described antenna, for the input of signal.
During described antenna work, described input port 1 outer signal source, additional pumping signal, by input port 1, as the feed end of antenna of the present invention, can connect transmitter or receiver, for the input of signal.
The invention also discloses a kind of minimized wide-band V-type resistance and load the manufacture method of amounting to a period of time antenna, it comprises:
Make described the first radiation arm 2, first make the first metal wire 21 and the second metal wire 22, then described metal wire 21,22 is fixed on and on described four support bars 41,42,43,44, opens into short base and be the trapezoidal of openend by the first preset space length, then by described the first metal wire 21 and the second metal wire 22 together with the end of short base open end is electrically connected to each other;
Make in the same way described the second radiation arm;
Two support bars of short base open end 41,44 of described the first radiation arm are separately fixed to top and the bottom of the first column 6, two support bars 41 of the short base open end of described the second radiation arm and 44 are also separately fixed to top and the bottom of described the first column 6;
The second column 51 is fixed on to the right side of the first column 6 by the second preset space length, two support bars 42 at the closing end place, long limit of described the first radiation arm and 43 is separately fixed to top and the bottom of the second column 51;
The 3rd column 52 is fixed on to the left side of the first column 6 by described the second preset space length, and two support bars 42 at the closing end place, long limit of described the second radiation arm and 43 is separately fixed to top and the bottom of the 3rd column 52.
Described loading resistor is comprised of one or more resistance.
In the one embodiment of the invention shown in Fig. 1, described radiation arm 2 is trapezoidal, the spacing of the trapezoidal metal wire 21,22 of described composition radiation arm 2 can be chosen between 20cm-100cm, optimum value is 20cm, described trapezoidal height (being the distance between support bar 44 and support bar 43) can be chosen between 500cm-2000cm, optimum value is 750cm, the length on short base can be chosen between 20cm-100cm, optimum value is 50cm, the length on long base can be chosen between 300cm-1000cm, and optimum value is 400cm.
Alternatively, described radiation arm 2 is right-angled trapezium, and wherein the metal wire between support bar 44 and support bar 43 is parallel to the ground, and mutually vertical with the metal wire between described support bar 42 and support bar 43.
In the one embodiment of the invention shown in Fig. 1, described radiation arm 2 is fixed together by insulation ropes and support post 51,52,6, symmetrical trapezoidal to open into two.
The input impedance of described input port 1 can be chosen between 200 ohm-600 ohm, and optimum value is designed to 450 ohm.
Described support bar is hollow medium pipe, and length is 30cm, and internal diameter is 15mm, and external diameter is 20mm.
When the present invention works, described input port 1 outer signal source, additional pumping signal is transferred on radiation arm 2 by input port 1, and goes out by radiation arm 2 space radiation towards periphery, realizes the function of radar range finding.
As shown in Figure 2, for minimized wide-band V-type resistance according to an embodiment of the invention loads the voltage standing wave ratio curve chart of amounting to a period of time antenna, in figure, abscissa represents frequency variable, and unit is MHz; Ordinate represents amplitude variable.In this embodiment, the working band that a period of time antenna is amounted in the loading of minimized wide-band V-type resistance is 3-30MHz, and as can be seen from Figure 2, the voltage standing wave ratio of antenna of the present invention is all less than 2.5 in frequency band.
As shown in Figure 3, for minimized wide-band V-type resistance according to an embodiment of the invention loads the gain curve figure that amounts to a period of time antenna, in figure, abscissa represents frequency variable, and unit is MHz; Ordinate representative gain, unit is dBi.In this embodiment, it is 3-30MHz that minimized wide-band V-type resistance loads the working band amount to a period of time antenna, and as can be seen from Figure 3, the gain of antenna of the present invention is the tallest and the biggest in-20dB in passband.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a broadband V-type resistance loads and amounts to a period of time antenna, it is characterized in that, this antenna comprises: two radiation arms (2), loading resistor (3), a plurality of support bars (41), (42), (43), (44), input port (1), the identical and symmetrical distribution of described two radiation arms (2) structure; Wherein:
Described radiation arm (2) is opening-like trapezoidal in short base, and it is electrically connected and is formed by two metal wire (21), (22) ends that are the opening-like trapezoidal and Parallel Symmetric in short base; Described radiation arm (2) is opened shape in echelon by four described support bars (41), (42), (43), (44); Described loading resistor (3) is electrically connected at described two radiation arms (2) separately between two ends of low side;
Described two radiation arms (2) separately high-end two ends are drawn rear composition input port (1), as the feed end of described antenna, for the input of signal.
2. antenna according to claim 1, it is characterized in that, form two trapezoidal metal wires (21) of described radiation arm (2), the spacing of (22) is 20cm-100cm, described trapezoidal height is 500cm-2000cm, near the base length of described input port (1), being 20cm-100cm, is 300cm-1000cm away from the base length of described input port (1).
3. antenna according to claim 1, it is characterized in that, described input port (1) outer signal source, it is upper that additional pumping signal is transferred to described two radiation arms (2) by input port (1), and go out by described two radiation arms (2) space radiation towards periphery.
4. antenna according to claim 1, is characterized in that, the input impedance of described input port (1) is 450 ohm.
5. antenna according to claim 1, is characterized in that, described loading resistor (3) consists of resistance.
6. antenna according to claim 1, is characterized in that, described loading resistor (3) is for reducing the reflected current of described radiation arm end.
7. antenna according to claim 1, is characterized in that, described a plurality of support bars (41), (42), (43), (44) are hollow medium pipe, and length is 30cm, and internal diameter is 15mm, and external diameter is 20mm.
8. antenna according to claim 1, is characterized in that, described radiation arm is right-angled trapezium, near the metal wire on ground, is parallel to ground and with vertical away from the base of input port 1.
9. the broadband V-type resistance as described in claim 1-8 any one loads a manufacture method of amounting to a period of time antenna, and it comprises:
Make the first metal wire and the second metal wire, then described the first metal wire and the second metal wire are fixed on and on described four support bars, open into short base and be the trapezoidal of openend by the first preset space length, then by described the first metal wire and the second metal wire together with the end of short base open end is electrically connected to each other, form described the first radiation arm;
Make in the same way described the second radiation arm;
Two support bars of short base open end of described the first radiation arm are separately fixed to top and the bottom of the first column, two support bars of the short base open end of described the second radiation arm are also separately fixed to top and the bottom of described the first column;
The second column is fixed on to the right side of the first column by the second preset space length, two support bars at the closing end place, long limit of described the first radiation arm is separately fixed to top and the bottom of the second column;
The 3rd column is fixed on to the left side of the first column by described the second preset space length, and two support bars at the closing end place, long limit of described the second radiation arm is separately fixed to top and the bottom of the 3rd column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171139.2A CN103928754B (en) | 2014-04-25 | 2014-04-25 | A kind of broadband V-type resistor loaded amounts to a period of time antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171139.2A CN103928754B (en) | 2014-04-25 | 2014-04-25 | A kind of broadband V-type resistor loaded amounts to a period of time antenna |
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| CN103928754A true CN103928754A (en) | 2014-07-16 |
| CN103928754B CN103928754B (en) | 2016-06-29 |
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| CN201410171139.2A Active CN103928754B (en) | 2014-04-25 | 2014-04-25 | A kind of broadband V-type resistor loaded amounts to a period of time antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633584A (en) * | 2015-12-30 | 2016-06-01 | 中国电子科技集团公司第三十九研究所 | Log periodic feed source array based on spaceborne multi-beam antenna space three-dimensional structure layout |
| CN114447625A (en) * | 2021-12-18 | 2022-05-06 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Miniaturized orthogonal altimeter transmitting antenna |
Citations (5)
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| AU6280073A (en) * | 1972-11-30 | 1975-05-22 | Antenna Eng Australia | Wide band antennas for high frequencies |
| CN2289250Y (en) * | 1996-12-10 | 1998-08-26 | 中国科学院长春地理研究所 | Underground detecting radar transmitter |
| US5995060A (en) * | 1997-02-17 | 1999-11-30 | Podger; James Stanley | Strengthened double-delta antenna structure |
| US6208306B1 (en) * | 1998-04-16 | 2001-03-27 | Emc Automation, Inc. | Compact, broadband antennas based on folded, top-loaded broadband dipoles with high-pass tuning elements |
| CN102394337A (en) * | 2011-06-07 | 2012-03-28 | 财团法人台湾电子检验中心 | Bilog broadband antenna structure |
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2014
- 2014-04-25 CN CN201410171139.2A patent/CN103928754B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6280073A (en) * | 1972-11-30 | 1975-05-22 | Antenna Eng Australia | Wide band antennas for high frequencies |
| CN2289250Y (en) * | 1996-12-10 | 1998-08-26 | 中国科学院长春地理研究所 | Underground detecting radar transmitter |
| US5995060A (en) * | 1997-02-17 | 1999-11-30 | Podger; James Stanley | Strengthened double-delta antenna structure |
| US6208306B1 (en) * | 1998-04-16 | 2001-03-27 | Emc Automation, Inc. | Compact, broadband antennas based on folded, top-loaded broadband dipoles with high-pass tuning elements |
| CN102394337A (en) * | 2011-06-07 | 2012-03-28 | 财团法人台湾电子检验中心 | Bilog broadband antenna structure |
Non-Patent Citations (1)
| Title |
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| 易晶珑等: "《论电离层垂测天线》", 《电波科学学报》, vol. 23, no. 2, 30 April 2008 (2008-04-30), pages 325 - 351 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633584A (en) * | 2015-12-30 | 2016-06-01 | 中国电子科技集团公司第三十九研究所 | Log periodic feed source array based on spaceborne multi-beam antenna space three-dimensional structure layout |
| CN105633584B (en) * | 2015-12-30 | 2018-07-13 | 中国电子科技集团公司第三十九研究所 | Logarithm period feed battle array based on satellite multi-beam antenna stereoeffect layout |
| CN114447625A (en) * | 2021-12-18 | 2022-05-06 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Miniaturized orthogonal altimeter transmitting antenna |
| CN114447625B (en) * | 2021-12-18 | 2023-07-28 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Miniaturized orthogonal altimeter transmitting antenna |
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| CN103928754B (en) | 2016-06-29 |
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