CN103928754B - A kind of broadband V-type resistor loaded amounts to a period of time antenna - Google Patents
A kind of broadband V-type resistor loaded amounts to a period of time antenna Download PDFInfo
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- CN103928754B CN103928754B CN201410171139.2A CN201410171139A CN103928754B CN 103928754 B CN103928754 B CN 103928754B CN 201410171139 A CN201410171139 A CN 201410171139A CN 103928754 B CN103928754 B CN 103928754B
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Abstract
The invention discloses a kind of broadband V-type resistor loaded and amount to a period of time antenna and preparation method thereof.This antenna includes: two radiation arms, loading resistor, support bar and input port, said two radiation arm is mutually symmetrical composition V-type, wherein, trapezoidal by two and Parallel Symmetric the metal wire of each radiation arm is constituted, and described two metal line are for improving the CURRENT DISTRIBUTION on described radiation arm；Described radiation arm is opened trapezoidal shape by described support bar；Described radiation arm has two ends, and the end of described loading resistor and said two radiation arm each low side is electrically connected, for reducing the reflected current of described radiation arm end；The each high-end end of said two radiation arm draws the feed end as described antenna, for the input of signal.The present invention has simple in construction, size is little, install the features such as convenient, is suitable for the size-constrained fixed observer in place or mobile observation uses.
Description
Technical field
The present invention relates to a kind of antenna being applied to wideband high-frequency range radar field, especially a kind of minimized wide-band V-type resistor loaded amounts to a period of time antenna
Background technology
Broad-band antenna is an important ingredient in range radar system, and its performance directly affects the overall performance of radar system.Wideband high-frequency range radar system many employings broadband frequency sweep coding signal or linear FM signal, therefore it is required that antenna should have good radiation characteristic and broadband impedance characteristic.The antenna form that current wideband high-frequency range radar is conventional has resistor loaded Delta antenna, and resistor loaded amounts to a period of time antenna and log-periodic antenna etc..In the practical applications such as ionospheric probing, there are many restrictions for fabricating yard, it is desirable to antenna size is little as far as possible and is easily installed.The broad-band antenna size being currently used for ionospheric probing is all very big, and the resistor loaded level as being operated in high band is amounted to a period of time antenna and is about 30m, and floor space is relatively big, and its low-frequency range radiation characteristic is very poor.Therefore, develop the broad-band antenna of a kind of miniaturization, have very positive effect for the development and application promoting wideband high-frequency range radar technology.
Summary of the invention
It is an object of the invention to improve the deficiency that prior art exists, it is provided that a kind of minimized wide-band V-type resistor loaded amounts to a period of time antenna.
The invention provides a kind of broadband V-type resistor loaded and amount to a period of time antenna, including: two radiation arms (2), loading resistor (3), multiple support bars (41), (42), (43), (44), input port (1), said two radiation arm (2) structure is identical and symmetrical distribution；Wherein:
Described radiation arm (2) is opening-like trapezoidal in short base, and it is electrically connected is constituted by two metal wires (21) of trapezoidal and Parallel Symmetric opening-like in short base, (22) end；Described radiation arm (2) is by four described support bars (41), (42), (43), (44) trapezoidal shape；Described loading resistor (3) is electrically connected between two ends of said two radiation arm (2) each low side；
Two ends that described two radiation arms (2) are each high-end form input port (1) after drawing, as the feed end of described antenna, for the input of signal.
Inventive antenna 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 resistor loaded amounts to the schematic perspective view of a period of time antenna according to an embodiment of the invention；
Fig. 2 is that minimized wide-band V-type resistor loaded amounts to the voltage standing wave ratio curve chart of a period of time antenna according to an embodiment of the invention；
Fig. 3 is that minimized wide-band V-type resistor loaded amounts to the gain curve figure of a period of time antenna according to an embodiment of the invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, 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 resistor loaded amounts to the schematic perspective view of a period of time antenna according to an embodiment of the invention, as shown in Figure 1, this minimized wide-band V-type resistor loaded is amounted to a period of time antenna and is included: 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 first radiation arm and the second radiation arm 2 are trapezoidal, and short base place is opening-like, and described first radiation arm and the second radiation arm structure are identical, symmetrical distribution.Described trapezoidal radiation arm 2 is made up of trapezoidal and front and back Parallel Symmetric first metal wire the 21, second metal wire 22 and a loading resistor 3, for improving the CURRENT DISTRIBUTION on described radiation arm 2, the bandwidth of operation of broadening antenna, described first metal wire 21 is electrically connected at an end of the low side of an end and described second metal wire 22 of short base open end low side, and the first metal wire 21 is electrically connected at another high-end end of high-end another end of short base open end with described second metal wire 22；Described loading resistor 3 is electrically connected between two ends of described first radiation arm and the second radiation arm 2 short base 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 optimizing design；Described first metal wire 21 and the second metal wire 22 parallel support respectively, on four support bars 41～44, opens into the radiation arm of two parallel open trapezoid shapes of front and back.
Described 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 first radiation arm and the second radiation arm are fixed on top and the bottom of the first column 6 respectively through insulation ropes, two support bars at Guan Bi end place, long limit are fixed on top and the bottom of the second column 51 and the 3rd column 52 respectively through insulation ropes, and described second column 51 and the second column 52 are respectively symmetrically the right and left being distributed in the first column 6.
Described first radiation arm and high-end two ends of the second radiation arm 2 short base open end draw composition input ports 1, as the feed end of described antenna, for the input of signal.
During described Antenna Operation, described input port 1 outer signal source, additional pumping signal passes through input port 1, as the feed end of inventive antenna, can connect transmitter or receiver, for the input of signal.
The invention also discloses a kind of minimized wide-band V-type resistor loaded and amount to the manufacture method of a period of time antenna, comprising:
Make described first radiation arm 2, first the first metal wire 21 and the second metal wire 22 is made, then described metal wire 21,22 is fixed on to open into short base on described four support bars 41,42,43,44 be the trapezoidal of opening, together with being then electrically connected to each other at the end of short base open end with the second metal wire 22 by described first metal wire 21 by the first preset space length；
Make described second radiation arm in the same way；
Two support bars of short base open end 41,44 of described first radiation arm are separately fixed at top and the bottom of the first column 6, two support bars 41 and 44 of the short base open end of described second radiation arm are also separately fixed at top and the bottom of described first column 6；
Second column 51 is fixed on the right side of the first column 6 by the second preset space length, and two support bars 42 and 43 that the long limit of described first radiation arm closes end place are separately fixed at top and the bottom of the second column 51；
3rd column 52 is fixed on by described second preset space length the left side of the first column 6, and two support bars 42 and 43 that the long limit of described second radiation arm closes end place are separately fixed at top and the bottom of the 3rd column 52.
Described loading resistor is made up 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 is 20cm, described trapezoidal height (i.e. distance between support bar 44 and support bar 43) can be chosen between 500cm-2000cm, optimum is 750cm, the length on short base can be chosen between 20cm-100cm, optimum is 50cm, the length on long base can be chosen between 300cm-1000cm, and optimum 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 and metal wire between described support bar 42 and support bar 43 be mutually perpendicular to.
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 is designed as 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 is gone out by radiation arm 2 space radiation towards periphery, it is achieved the function of radar range finding.
As in figure 2 it is shown, amount to the voltage standing wave ratio curve chart of a period of time antenna for minimized wide-band V-type resistor loaded according to an embodiment of the invention, in figure, abscissa represents frequency variable, and unit is MHz；Vertical coordinate represents amplitude variations.In this embodiment, it is 3-30MHz that minimized wide-band V-type resistor loaded amounts to the working band of a period of time antenna, from figure 2 it can be seen that the voltage standing wave ratio of inventive antenna is both less than 2.5 in frequency band.
As it is shown on figure 3, amount in the gain curve figure of a period of time antenna, figure for minimized wide-band V-type resistor loaded according to an embodiment of the invention, abscissa represents frequency variable, and unit is MHz；Vertical coordinate represents gain, and unit is dBi.In this embodiment, it is 3-30MHz that minimized wide-band V-type resistor loaded amounts to the working band of a period of time antenna, from figure 3, it can be seen that the gain of inventive antenna in passband more than-20dBi.
Particular embodiments described above; the purpose of the present invention, technical scheme and beneficial effect have been further described; it it should be understood that; the foregoing is only specific embodiments of the invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (8)
1. a broadband V-type resistor loaded amounts to a period of time antenna, it is characterized in that, this antenna includes: two radiation arms (2), loading resistor (3), multiple support bars (41,42,43,44), input port (1), said two radiation arm (2) structure is identical and symmetrical distribution；Wherein:
Described radiation arm (2) is opening-like trapezoidal in short base, and it is electrically connected by metal wire (21, the 22) end of two trapezoidal and Parallel Symmetrics opening-like in short base and constitutes；Described radiation arm (2) is by four described support bars (41,42,43,44) trapezoidal shape；Described loading resistor (3) is electrically connected between two ends of said two radiation arm (2) each low side；
Two ends that described two radiation arms (2) are each high-end form input port (1) after drawing, as the feed end of described antenna, for the input of signal；
Wherein, described radiation arm is right-angled trapezium, near ground metal lines run parallel in ground and with the base vertical away from input port 1.
2. antenna according to claim 1, it is characterized in that, the spacing of two the trapezoidal metal wires (21,22) forming described radiation arm (2) is 20cm-100cm, described trapezoidal height is 500cm-2000cm, base length near described input port (1) is 20cm-100cm, and the base length away from described input port (1) is 300cm-1000cm.
3. antenna according to claim 1, it is characterized in that, described input port (1) outer signal source, additional pumping signal is transferred on said two radiation arm (2) by input port (1), and is gone out by said two radiation arm (2) space radiation towards periphery.
4. antenna according to claim 1, it is characterised in that the input impedance of described input port (1) is 450 ohm.
5. antenna according to claim 1, it is characterised in that described loading resistor (3) is made up of resistance.
6. antenna according to claim 1, it is characterised in that described loading resistor (3) is for reducing the reflected current of described radiation arm end.
7. antenna according to claim 1, it is characterised in that the plurality of support bar (41,42,43,44) is hollow medium pipe, and length is 30cm, and internal diameter is 15mm, and external diameter is 20mm.
8. the broadband V-type resistor loaded as described in any one of claim 1-7 amounts to a manufacture method for a period of time antenna, comprising:
Make the first metal wire and the second metal wire, then be fixed on four support bars opening into short base by the first preset space length by described first metal wire and the second metal wire is the trapezoidal of opening, then described first metal wire and the second metal wire are electrically connected to each other together at the end of short base open end, form the first radiation arm；
Make the second radiation arm in the same way；
Two support bars of short base open end of described first radiation arm are separately fixed at top and the bottom of the first column, two support bars of the short base open end of described second radiation arm are also separately fixed at top and the bottom of described first column；
Second column is fixed on the right side of the first column by the second preset space length, and two support bars that the long limit of described first radiation arm closes end place are separately fixed at top and the bottom of the second column；
3rd column is fixed on by described second preset space length the left side of the first column, and two support bars that the long limit of described second radiation arm closes end place are separately fixed at top and the bottom of the 3rd column.
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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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| 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 CN103928754A (en) | 2014-07-16 |
| CN103928754B true CN103928754B (en) | 2016-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
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- 2014-04-25 CN CN201410171139.2A patent/CN103928754B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|
| 《论电离层垂测天线》;易晶珑等;《电波科学学报》;20080430;第23卷(第2期);第325-351页 * |
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