CN104466412B - Broadband dual-polarization feed source - Google Patents
Broadband dual-polarization feed source Download PDFInfo
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- CN104466412B CN104466412B CN201410817426.6A CN201410817426A CN104466412B CN 104466412 B CN104466412 B CN 104466412B CN 201410817426 A CN201410817426 A CN 201410817426A CN 104466412 B CN104466412 B CN 104466412B
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- printed board
- impedance
- horizontal polarization
- metal band
- band wire
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Abstract
The invention discloses a broadband dual-polarization feed source in the field of wireless communication and radio astronomy. The broadband dual-polarization feed source is composed of four sets of radiation oscillators and two impedance synthetic printed boards. The radiation oscillators form a log-periodic dipole array, the two sets of radiation oscillators which are placed in an orthogonal mode are connected with the two impedance synthetic printed boards which are placed in an orthogonal mode respectively, the two ends of each left metal strap of the impedance synthetic printed boards are connected with corresponding left pins of the two sets of radiation oscillators in a one-to-one corresponding mode, the two ends of each right metal strap of the impedance synthetic printed boards are connected with corresponding right pins of the two sets of radiation oscillators in a one-to-one corresponding mode, and therefore the switching to two coaxial interfaces from eight ports is achieved. The feed source is simple in feed network structure, small in feeder loss, high in feed efficiency, compact in structure, low in manufacturing cost and particularly suitable for the feed source or an antenna or a feed network of the feed source or the antenna when the feed source or the antenna or the feed network works under the broadband application situation.
Description
Technical field
The present invention relates to communicate, broadband direction finding, remote measurement, a kind of broadband feed of remote sensing and radio astronomy technical field.
Background technology
Broadband feed can greatly reduce feed quantity, reduce antenna aperture, with multi-functional, multipurpose, comprehensive collection
Into grade technical characterstic.Exactly because there is these advantages, which suffers from widely needing in military, civilian and astronomy field
Ask.
Broadband feed mainly has following several at present：Logarithmic spiral feed, traveling wave resonance (TWR) feed, logarithm period feedback
Source, SINUOUS feeds etc..But this several feed application has certain limitation, is embodied in：
Logarithmic spiral feed：Single rotation direction broadband reception, it is impossible to realize double rotational directions while receiving；
Traveling wave resonance (TWR) feed：Broadband double-circle polarization is received, and antenna pattern changes greatly with frequency；
Logarithm period feed：Synthetic wideband circular polarisation difficulty is larger, and phase center changes greatly with frequency；
SINUOUS feeds：Antenna is bidirectional radiation, is used as feed, need to increase back of the body chamber and realize one-way radiation, and back of the body chamber sets
Meter is difficult big, and bandwidth is inadequate, and phase center is changed greatly with frequency.
Therefore study a kind of feed of phase center not with frequency change necessary, and difficult point is that feeding classification
Select.
Currently for the broadband feed that phase center is constant, there are various feeding classifications.Here mainly introduce a kind of coaxial electrical
The version of cable direct feed, this form structure are simple, low cost, it is easy to accomplish.
The content of the invention
It is an object of the invention to provide a kind of broadband bipolar feed source, can be printed by vertical polarization impedance synthesis
Plate, horizontal polarization impedance synthesis printed board, make the antenna of 8 ports be reduced to the output of 2 ports, are particularly well-suited to be operated in broadband
The feeding network of feed or antenna under dual-linear polarization or double-circle polarization applicable cases.
The technical solution used in the present invention is：
A kind of broadband bipolar feed source, including radiating doublet and feeding network, it is characterised in that：Described radiating doublet
For two groups and V-shape is relatively set into, every group of radiating doublet is respectively arranged with left pin and right pin；Described feeding network bag
Impedance synthesis printed board is included, the upper surface for synthesizing printed board in impedance is provided with wide left metal band wire and right metal band wire；
The two ends of left metal band wire are connected one to one with the left pin of two groups of radiating doublets, the two ends of right metal band wire and two groups of radiation
The right pin of oscillator connects one to one；The left intermediate node of metal band wire is connected with the inner wire of coaxial interface, right metal
The intermediate node of band wire is connected with the outer conductor of coaxial interface.
Described radiating doublet is logarithmically periodic dipole array.
Described radiating doublet is vertical polarization radiating doublet, and described impedance synthesis printed board is closed for vertical polarization impedance
Into printed board, described coaxial interface is vertical polarization coaxial interface.
Also include that two groups of horizontal polarization radiating doublets for being relatively set into V-shape and a horizontal polarization impedance synthesis are printed
Plate, two groups of horizontal polarization radiating doublets are identical with two groups of vertical polarization radiating doublet structures and orthogonal thereto placement, horizontal polarization resistance
Anti- synthesis printed board is identical with vertical polarization impedance synthesis printed board structure and orthogonal thereto layering is placed；Horizontal polarization impedance synthesizes
The two ends of the left metal band wire of printed board are connected one to one with the left pin of two groups of horizontal polarization radiating doublets, horizontal polarization resistance
The two ends of right metal band wire of anti-synthesis printed board are connected one to one with the right pin of two groups of horizontal polarization radiating doublets；Level
The intermediate node of the left metal band wire of polarization impedance synthesis printed board is connected with the inner wire of horizontal polarization coaxial interface, level
The intermediate node of the right metal band wire of polarization impedance synthesis printed board is connected with the outer conductor of horizontal polarization coaxial interface
It is insulation set that horizontal polarization impedance synthesizes between printed board and vertical polarization impedance synthesis printed board.
Passive matching network is connected with left metal band wire and right metal band wire.
Having the beneficial effect that acquired by the present invention：
Printed board is synthesized by upper and lower two-layer and realizes that signal synthesizes, designed feed is had in broad frequency band and compare
10dB beam angles, metastable phase center Deng change, these advantages can greatly reduce feed quantity, reduce antenna opening
, there is wide application in footpath in fields such as radio astronomy, autotrackings.
Description of the drawings：
Fig. 1 is feed general structure schematic diagram.
Structural representations of the Fig. 2 for V-shape vertical polarization radiating doublet.
Structural representations of the Fig. 3 for V-shape horizontal polarization radiating doublet.
Fig. 4 is that vertical polarization impedance synthesizes printed board schematic diagram.
Fig. 5 is that horizontal polarization impedance synthesizes printed board schematic diagram.
Structural representations of the Fig. 6 for coaxial interface 3.
Structural representations of the Fig. 7 for coaxial interface 4.
Structural representations of the Fig. 8 for insulation set.
Specific embodiment
Below, with reference to Fig. 1 to Fig. 8, the invention will be further described.
The present invention includes radiating doublet 1 and feeding network 2, radiating doublet 1 be two groups and it is orthogonal be arranged to V-shape, vertically
The left pin 11a of polarized radiation oscillator 11 connections corresponding with the left metal band wire 21a that vertical polarization impedance synthesizes printed board 21, it is left
The intermediate node 21c of metal band wire 21a is connected with the inner wire 31 of coaxial interface 3, and the right side of vertical polarization radiating doublet 11 is drawn
Foot 11b connections corresponding with the right metal band wire 21b that vertical polarization impedance synthesizes printed board 21, the middle node of right metal band wire 21b
Point 21d is connected with the outer conductor 32 of coaxial interface 3；The left pin 12a of horizontal polarization radiating doublet 12 and horizontal polarization impedance
The left metal band wire 22a correspondences of synthesis printed board 22 connect, and the intermediate node 22c of left metal band wire 22a is interior with coaxial interface 4
Conductor 41 is connected, the right metal of the right pin 12b of horizontal polarization radiating doublet 12 and horizontal polarization impedance synthesis printed board 22
Band wire 22b correspondences connect, and the intermediate node 22d of right metal band wire 22b is connected with the outer conductor 42 of coaxial interface 4；Vertical pole
It is insulation set 5 to change between impedance synthesis printed board 21 and horizontal polarization impedance synthesis printed board 22, vertical polarization impedance synthesis
The left metal band wire 21a and right metal band wire 21b of printed board 21 is connected with passive matching network 61.Horizontal polarization impedance synthesis print
The left metal band wire 22a and right metal band wire 22b of making sheet 22 is connected with passive matching network 62.
The brief operation principle of the present invention：
The left and right metal band wire of impedance synthesis printed board is connected with the left and right pin of two groups of V-shape radiating doublets, orthogonal to put
The left and right metal band wire of another the impedance synthesis printed board put is connected with the left and right pin of other two groups of V-shape radiating doublets
Connect, each left intermediate node of metal band wire of impedance synthesis printed board is connected with the inner wire of coaxial interface, right metal band wire
Intermediate node be connected with the outer conductor of coaxial interface.Realize 8 ports to the transformation of 2 coaxial interfaces.
Claims (4)
1. a kind of broadband bipolar feed source, including radiating doublet and feeding network, it is characterised in that：Described radiating doublet is
Two groups and V-shape is relatively set into, every group of radiating doublet is respectively arranged with left pin and right pin；Described feeding network includes
Impedance synthesizes printed board, and the upper surface for synthesizing printed board in impedance is provided with wide left metal band wire and right metal band wire；It is left
The two ends of metal band wire are connected one to one with the left pin of two groups of radiating doublets, and the two ends of right metal band wire are shaken with two groups of radiation
The right pin of son connects one to one；The left intermediate node of metal band wire is connected with the inner wire of coaxial interface, right metal tape
The intermediate node of line is connected with the outer conductor of coaxial interface；Described radiating doublet is vertical polarization radiating doublet, described
Impedance synthesis printed board is that vertical polarization impedance synthesizes printed board, and described coaxial interface is vertical polarization coaxial interface；
Also include that two groups of horizontal polarization radiating doublets for being relatively set into V-shape and a horizontal polarization impedance synthesize printed board,
Two groups of horizontal polarization radiating doublets are identical with two groups of vertical polarization radiating doublet structures and orthogonal thereto placement, and horizontal polarization impedance is closed
Into printed board and vertical polarization impedance synthesis printed board structure it is identical and it is orthogonal thereto layering place；Horizontal polarization impedance synthesis is printed
The two ends of the left metal band wire of plate are connected one to one with the left pin of two groups of horizontal polarization radiating doublets, and horizontal polarization impedance is closed
The two ends of right metal band wire into printed board are connected one to one with the right pin of two groups of horizontal polarization radiating doublets；Horizontal polarization
The intermediate node of the left metal band wire of impedance synthesis printed board is connected with the inner wire of horizontal polarization coaxial interface, horizontal polarization
The intermediate node of the right metal band wire of impedance synthesis printed board is connected with the outer conductor of horizontal polarization coaxial interface.
2. a kind of broadband bipolar feed source according to claim 1, it is characterised in that：Described radiating doublet is logarithm
Periodic dipole subarray.
3. a kind of broadband bipolar feed source according to claim 1, it is characterised in that：Horizontal polarization impedance synthesis is printed
It is insulation set between plate and vertical polarization impedance synthesis printed board.
4. a kind of broadband bipolar feed source according to claim 1, it is characterised in that：In left metal band wire and right metal
Passive matching network is connected between band wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817426.6A CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817426.6A CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466412A CN104466412A (en) | 2015-03-25 |
| CN104466412B true CN104466412B (en) | 2017-04-12 |
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| CN201410817426.6A Active CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609931A (en) * | 2008-06-20 | 2009-12-23 | 电子科技大学 | Antenna array phase control technology and system thereof based on the time modulation realize |
| CN103401625A (en) * | 2013-08-23 | 2013-11-20 | 西安电子科技大学 | Particle swarm optimization algorithm based cooperative spectrum sensing optimization method |
| EP2744042A1 (en) * | 2012-12-11 | 2014-06-18 | BAE Systems PLC | Time modulated antenna array with optical switches |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8005164B2 (en) * | 2007-03-02 | 2011-08-23 | Intel Corporation | Link adaptation and antenna selection in cooperative multiple access systems |
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- 2014-12-25 CN CN201410817426.6A patent/CN104466412B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609931A (en) * | 2008-06-20 | 2009-12-23 | 电子科技大学 | Antenna array phase control technology and system thereof based on the time modulation realize |
| EP2744042A1 (en) * | 2012-12-11 | 2014-06-18 | BAE Systems PLC | Time modulated antenna array with optical switches |
| CN103401625A (en) * | 2013-08-23 | 2013-11-20 | 西安电子科技大学 | Particle swarm optimization algorithm based cooperative spectrum sensing optimization method |
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| CN104466412A (en) | 2015-03-25 |
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