CN102354802A - Connected tree-form delay line bow tie pulse antenna - Google Patents
Connected tree-form delay line bow tie pulse antenna Download PDFInfo
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- CN102354802A CN102354802A CN2011103385943A CN201110338594A CN102354802A CN 102354802 A CN102354802 A CN 102354802A CN 2011103385943 A CN2011103385943 A CN 2011103385943A CN 201110338594 A CN201110338594 A CN 201110338594A CN 102354802 A CN102354802 A CN 102354802A
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Abstract
The invention discloses a connected tree-form delay line bow tie pulse antenna which is composed of bow-tie radiation patches (1), medium substrates (2) and tree-form delay lines (3), wherein the radiation patches and the tree-form delay lines are respectively positioned on two sides of the medium substrates (2); one approaching ends of the two radiation patches (1) are the feeding ends (4) of the bow tie pulse antenna; the other ends of the two radiation patches are the radiation tail ends (5) of the bow-tie radiation antenna; the tree-form delay lines (3) are positioned on the back zones of the medium substrates (2) of the two radiation patches (1); the tree-form delay lines (3) in each zone are gathered on the gathering points (6) of the delay lines in a tree form; and the gathering points (6) are connected by a connection line (7); and the tree-form branch tail end of each tree-form delay line (3) is connected with the radiation tail ends (5) of the antenna via metalizing through holes (8). According to the antenna, trailing pulse appearing time in a pulse radiation waveform can be delayed, interference on a target signal by the trailing pulse can be lowered, and adverse effect on the antenna radiation efficiency is smaller.
Description
Technical field
The present invention relates to a kind of pulse antenna, the tree-like delay line knot of especially a kind of connection pulse antenna belongs to the technical field that pulse antenna is made.
Background technology
During pulse antenna pulses of radiation signal; Pulse current flow to from antenna input antenna end during this period of time in; If pulse antenna can not all radiate electromagnetic energy; Have the remaining pulse current that does not radiate at the aerial radiation end; The residual impulse electric current can return along original path in antenna; In process after this, continue the electromagnetic radiation energy, therefore can form tail pulse.When pulse antenna is used for ground penetrating radar, these tail pulses with from the signal of target at the time domain overlaid, thereby target signal generating is disturbed, therefore to take measures to reduce the influence of tail pulse in the pulses of radiation waveform usually.The knot antenna is as a kind of pulse antenna, and it is wide to have a working band, makes advantages such as simple.The application of knot antenna is very extensive, and more application is also arranged in ground penetrating radar, and its main radiation direction is the normal direction on plane, knot paster place.At present, for the knot pulse antenna, the method for reduction tail pulse influence commonly used is the resistance Loading Method.The subject matter of these loading methods is: the resistance of loading can cause the reduction of pulse antenna radiation efficiency, sees from the feed end of antenna in addition, and antenna is an open circuit, is unfavorable for the radiation of transient impulse energy.The relative distributing point of knot pulse antenna radiation tip dimensions is bigger simultaneously, and the scope that end current distributes is bigger.
Summary of the invention
Technical problem:The present invention seeks to propose the tree-like delay line knot of a kind of connection pulse antenna; The time of occurrence of the tail pulse in the effective delayed radiation impulse waveform of this knot pulse antenna ability; Avoid the interference of tail pulse to echo signal, and less to the adverse effect of antenna radiation efficiency.
technical scheme: of the present invention the communication tree tie pulse delay line comprises a pair of tie antenna radiation patch, a dielectric substrate, and tree delay line; wherein the radiation patch and tree tie delay lines are located on both sides of the dielectric substrate; two bowtie radiating patch is similar to the inner end of the pulse bowtie antenna feed, the other end is the bow tie antenna radiation pulse end; two or more branches of the tree in two delay lines a tie radiation patch contains the region of the back of the dielectric substrate, each area of the tree was the tree delay line, the delay line together several branches extending from a convergence point and then, several groups can be branched such converge on another focal point, and then after another delay line extending convergence, like the tree, like the tree delay line through two regional focal point through the communication line connected to the other end of the delay line in the tree, a branch of the tree the end of the delay line each metallized vias through each end of the connection of the antenna radiation.
Described knot radiation patch be shaped as triangle or fan-shaped.
Tree-like delay line is printed, etching perhaps is placed on the medium substrate, or is suspended in the air above the medium substrate.
Tree-like delay line is being dendritic some leads near the terminal end of the radiation of knot pulse antenna, is connected with the radiation end of antenna through the metallization via hole.
Be connected through being communicated with line between the convergent point of two tree-like delay lines in zone.
Tree-like delay line be shaped as straight line or hair clip shape, its length long enough is being communicated with propagation time on the delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee pulse energy.
Tree-like delay line has constituted a current path with the connection line.At first from the feed end input of knot pulse antenna, the radiation that is transmitted to antenna is terminal for pulse signal.Radiation at antenna is terminal; Tree-like delay line is that the electric current of the residual impulse energy of radiation does not provide additional current paths with being communicated with line; The residual impulse energy of radiation does not get into the tree-like delay line that is communicated with through metallized via hole; Avoided the radiation terminal open circuit and made the residual impulse energy of radiation not return the radiating element of antenna, formed radiation again and cause tail pulse.The densely distributed metallization via hole that links to each other with tree-like delay line makes the terminal residual impulse energy of knot pulse antenna radiation can as often as possible get into delay line, the appearance of more effective delay tail pulse.Because delay line is at the back side of knot radiation patch main radiation direction, not only the energy emission on main radiation direction does not exert an influence delay line to the knot pulse antenna in the space that it occupies; And because the effect of blocking of radiation patch, the residual impulse electric current towards the energy of main radiation direction radiation seldom, has only residual impulse energy electric current to run into and reflects back into the radiation again of knot radiation patch on delay line, forms tail pulse.Because the delayed action of delay line, with respect to the primary radiation pulse, tail pulse has had delay on time of occurrence.See from feed end that in addition the current path of connection more helps the radiation of pulse energy.Owing to there not being loading resistor, also less simultaneously to the adverse effect of antenna radiation efficiency.But the material around the length, delay line of adjustment delay line, the consistency of the pore size distribution of metallizing etc. all in the pulse signals tail pulse exert an influence with respect to the time of occurrence of main pulse.
Beneficial effect:The invention has the beneficial effects as follows; The tree-like delay line knot of the connection that is proposed pulse antenna has postponed in the pulse signal tail pulse with respect to the time of occurrence of main pulse; Effectively avoid in the impulse radiation waveform tail pulse to the interference of echo signal, less to the adverse effect of antenna radiation efficiency simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Have among the figure: knot radiation patch 1, medium substrate 2, tree-like delay line 3, the feed end 4 of antenna, the radiation end 5 of antenna, the convergent point 6 of delay line is communicated with line 7, metallization via hole 8.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
The technical scheme that the present invention adopted is: be communicated with tree-like delay line knot pulse antenna and be made up of a pair of knot radiation patch, medium substrate and tree-like delay line, wherein knot radiation patch and tree-like delay line lay respectively at the both sides of medium substrate.Two knot radiation patch are shaped as triangle or fan-shaped, are positioned at the same surface of medium substrate, and two close the inners of knot radiation patch are feed ends of knot pulse antenna, and the other end is that the radiation of knot pulse antenna is terminal.The tree-like delay line of the connection of two or racemosus is positioned at the zone at the medium substrate back side of two knot radiation patch, makes the radiation of delay line on the antenna main radiation direction blocked by the knot radiation patch like this, thereby the radiation of antenna is not exerted an influence.Be distributed with one or the tree-like delay line of racemosus at the medium substrate back side of each knot radiation patch; These tree-like delay lines are tree-shaped distribution; The several branches of delay line converge at a convergent point and extend; Several groups of such branches also can converge at another convergent point again; And then extension is back and other delay line converges; Just as tree structure; The tree-like delay line in two zones links to each other through being communicated with line by convergent point; Each tree-like delay line is dendroid at its other direction end; Be connected with the radiation of antenna is terminal respectively by the metallization via hole; Metallization via hole dense even distribution, several are one group and link to each other one by one with the tree-like branch lead of a tree-like delay line.Pulse signal at first adds from the feed end of knot pulse antenna; The radiation that is transmitted to antenna is terminal; The radiation end of antenna not the residual impulse energy of radiation get into the tree-like delay line that is communicated with through the metallization via hole; Delay line is that the electric current of residual impulse energy provides additional current paths; Avoided the radiation terminal open circuit and made the residual impulse energy of radiation not return the radiating element of antenna, formed radiation again and cause tail pulse.The densely distributed metallization via hole that links to each other with tree-like delay line makes the terminal residual impulse energy of knot pulse antenna radiation can as often as possible get into current path, thereby can more effectively postpone the appearance of tail pulse.Tree-like delay line printing or the etching that is communicated with or stick on the medium substrate also can be suspended in the air.Because delay line is at the back side of knot radiation patch main radiation direction, not only the energy emission on main radiation direction does not exert an influence delay line to the knot pulse antenna in the space that it occupies; And because the effect of blocking of knot paster, the residual impulse electric current towards the energy of main radiation direction radiation seldom, has only residual impulse energy electric current to run into and reflects back into the radiation again of knot radiation patch on delay line, forms tail pulse.Because the delayed action of delay line, with respect to the primary radiation pulse, tail pulse has had delay on time of occurrence.See from feed end that in addition the current path of connection more helps the radiation of pulse energy.Owing to there not being loading resistor, also less simultaneously to the adverse effect of antenna radiation efficiency.But the material around the length, delay line of adjustment delay line, the consistency of the pore size distribution of metallizing etc. all in the pulse signals tail pulse exert an influence with respect to the time of occurrence of main pulse.
Structurally, this is communicated with tree-like delay line knot pulse antenna and is made up of knot radiation patch 1, medium substrate 2 and tree-like delay line 3, and wherein knot radiation patch 1 and tree-like delay line 3 lay respectively at the both sides of same medium substrate 2.One end of knot radiation patch 1 is the feed end 4 of knot pulse antenna, and the other end is the radiation terminal 5 of knot pulse antenna.The tree-like delay line 3 of the connection of two or racemosus is positioned at the zone at two knot radiation patch, 1 pairing medium substrate, 2 back sides; Each knot radiation patch 1 right medium substrate 2 back sides be distributed with one or the tree-like delay line 3 of racemosus; These tree-like delay lines 3 are tree-shaped distribution; The several branches of delay line converge at a convergent point 6 and extend; Several groups of such branches also can converge at another convergent point 6 again; And then extension is back and other delay line converges; Just as tree structure; The tree-like delay line 3 in two zones links to each other through being communicated with line 7 by the convergent point 6 of delay line; Each tree-like delay line 3 is dendroid at its other direction end, is connected with the radiation terminal 5 of antenna respectively by metallization via hole 8.Can be rectilinear wire between two ends of each tree-like delay line 3; Also can be the hairpin lead; The length long enough of delay line is being communicated with propagation time on the delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee pulse energy.The metallization via hole 8 that connects the radiation terminal 5 of tree-like delay line 3 and antenna can be metal column or hollow metal via hole, and the dense even distribution of via hole penetrates medium substrate 2, and several are one group and link to each other one by one with the tree-like radiation conductor of a tree-like delay line 3.Tree-like delay line 3 and the tree-like delay line that is communicated with line 7 formation connections are for pulse current provides additional current path.
On making, this manufacturing process that is communicated with tree-like delay line knot pulse antenna can adopt semiconductor technology, ceramic process, laser technology or printed circuit technology.This is communicated with tree-like delay line knot pulse antenna and is made up of knot radiation patch 1, medium substrate 2 and 3 in tree-like delay line; Wherein knot radiation patch 1 is made up of the good conductor material of electric conductivity; Shape can be triangle or fan-shaped; Be positioned at the same surface of medium substrate 2, medium substrate 2 is wanted the alap dielectric material of service wear.Tree-like delay line 3 is produced on the opposite side of medium substrate 2; The length long enough of delay line; To guarantee that pulse energy is being communicated with propagation time on the delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse; Therefore can be rectilinear wire between two ends of each tree-like delay line 3, perhaps be made as the hairpin lead to guarantee the delay line long enough.Tree-like delay line 3 can be printed, etching perhaps is placed on the medium substrate 2, also can be suspended in the air above the medium substrate 2; Being communicated with line 7 can or be etched in the little band transfer wire on the medium substrate 2 for printing, also can be for being suspended at airborne lead.
According to the above, just can realize the present invention.
Claims (6)
1. one kind is communicated with tree-like delay line knot pulse antenna, it is characterized in that this is communicated with tree-like delay line knot pulse antenna and comprises a pair of knot radiation patch (1), medium substrate (2) and tree-like delay line (3); Wherein knot radiation patch (1) and tree-like delay line (3) lay respectively at the two sides of medium substrate (2); The close the inner of two knot radiation patch (1) is the feed end (4) of knot pulse antenna, and the other end is the radiation terminal (5) of knot pulse antenna; Tree-like delay line (3) is positioned at the zone at the medium substrate back side that two knot radiation patch (1) are comprised; The tree-like delay line (3) in each zone is the convergent point (6) that tree-shaped distribution converges at delay line; The tree-like delay line (3) in two zones links to each other through being communicated with line (7) through convergent point, and the end of each branch of tree-like delay line (3) is connected with the radiation terminal (5) of antenna through metallization via hole (8).
2. the tree-like delay line knot of connection according to claim 1 pulse antenna, what it is characterized in that described knot radiation patch (1) is shaped as triangle or fan-shaped.
3. the tree-like delay line knot of connection according to claim 1 pulse antenna is characterized in that tree-like delay line (3) and connection line (7) are printed, etching perhaps is placed on the medium substrate (2), or is suspended in the air above the medium substrate (2).
4. according to claim 1 or the tree-like delay line knot of 3 described connections pulse antenna; It is characterized in that the end of tree-like delay line (3) in the radiation terminal (5) of close knot pulse antenna; The densely distributed dendritic branch wire end that is is arranged; Be connected with the radiation terminal (5) of antenna through metallization via hole (8), make the residual impulse energy of radiation terminal (5) can as often as possible get into current path.
5. according to claim 1 or the tree-like delay line knot of 3 described connections pulse antenna; It is characterized in that tree-like delay line (3) is at the end away from the radiation of knot pulse antenna terminal (5); The several branches of delay line converge at a convergent point (6) and extend; Several groups of such branches also can converge at another convergent point (6) again; And then extension is back and other delay line converges, just as tree structure; The tree-like delay line (3) in two zones links to each other through being communicated with line (7) through convergent point.
6. according to claim 1 or the tree-like delay line knot of 3 described connections pulse antenna; What it is characterized in that tree-like delay line (3) is shaped as straight line or hair clip shape; Its length long enough is being communicated with propagation time on the delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee pulse energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103385943A CN102354802B (en) | 2011-11-01 | 2011-11-01 | Connected tree-form delay line bow tie pulse antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103385943A CN102354802B (en) | 2011-11-01 | 2011-11-01 | Connected tree-form delay line bow tie pulse antenna |
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| CN102354802A true CN102354802A (en) | 2012-02-15 |
| CN102354802B CN102354802B (en) | 2013-11-27 |
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| CN2011103385943A Expired - Fee Related CN102354802B (en) | 2011-11-01 | 2011-11-01 | Connected tree-form delay line bow tie pulse antenna |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633108A (en) * | 2005-01-12 | 2005-06-29 | 北京理工大学 | Dynamic reconfigurable multi-granularity optical buffer for all-optical switching network |
| CN1697256A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Impulse antenna of having delay line |
| US20080252530A1 (en) * | 2007-04-16 | 2008-10-16 | Ki-Hyoung Bae | Multi-resonant broadband antenna |
| CN102157769A (en) * | 2011-03-25 | 2011-08-17 | 东南大学 | Microstrip line-slot line transition structure with stop band |
-
2011
- 2011-11-01 CN CN2011103385943A patent/CN102354802B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633108A (en) * | 2005-01-12 | 2005-06-29 | 北京理工大学 | Dynamic reconfigurable multi-granularity optical buffer for all-optical switching network |
| CN1697256A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Impulse antenna of having delay line |
| US20080252530A1 (en) * | 2007-04-16 | 2008-10-16 | Ki-Hyoung Bae | Multi-resonant broadband antenna |
| CN102157769A (en) * | 2011-03-25 | 2011-08-17 | 东南大学 | Microstrip line-slot line transition structure with stop band |
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| CN102354802B (en) | 2013-11-27 |
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