CN102354802B - 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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- CN102354802B CN102354802B CN2011103385943A CN201110338594A CN102354802B CN 102354802 B CN102354802 B CN 102354802B CN 2011103385943 A CN2011103385943 A CN 2011103385943A CN 201110338594 A CN201110338594 A CN 201110338594A CN 102354802 B CN102354802 B CN 102354802B
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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, especially a kind of connection tree-form delay line bow tie pulse antenna, belong to the technical field that pulse antenna is manufactured.
Background technology
During pulse antenna pulses of radiation signal, at pulse current, flow to from antenna input antenna end during this period of time in, if pulse antenna can not all radiate electromagnetic energy, at the aerial radiation end, have the remaining pulse current do not radiate, 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.At pulse antenna when the ground penetrating radar, these tail pulses with signal from target at the time domain overlaid, thereby target signal generating is disturbed, therefore usually to take measures to reduce the impact of tail pulse in the pulses of radiation waveform.Bow―tie antenna is as a kind of pulse antenna, has a working band wide, makes the advantages such as simple.The application of Bow―tie antenna is very extensive, and more application, its main radiation direction are also arranged in ground penetrating radar be the normal direction on plane, knot paster place.At present, for bow tie pulse antenna, the method for reduction tail pulse impact 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, and from the feed end of antenna, antenna is open circuit, is unfavorable for the radiation of transient impulse energy in addition.The relative distributing point of bow tie pulse antenna radiation tail end size is larger simultaneously, and the scope that end current distributes is larger.
Summary of the invention
Technical problem:The present invention seeks to propose a kind of connection tree-form delay line bow tie pulse antenna, the time of occurrence of the tail pulse in the effective delayed radiation impulse waveform of this bow tie pulse antenna energy, avoid the interference of tail pulse to echo signal, and less to the adverse effect of antenna radiation efficiency.
technical scheme:connection tree-form delay line bow tie pulse antenna of the present invention comprises a pair of knot radiation patch, medium substrate and tree-form delay line, wherein knot radiation patch and tree-form delay line lay respectively at the both sides of medium substrate, two close the inners of knot radiation patch are feed ends of bow tie pulse antenna, and the other end is the radiation tail end of bow tie pulse antenna, the tree-form delay line of two or racemosus is positioned at the zone at the medium substrate back side that two knot radiation patch comprise, each regional tree-form delay line is tree-shaped, 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 with other delay line, converge after extending, just as tree structure, the tree-form delay line in two zones is connected through being communicated with line by convergent point, another end at tree-form delay line, each branch end of tree-form delay line is connected with the radiation tail end of antenna respectively by the metallization via hole.
Described knot radiation patch be shaped as triangle or fan-shaped.
Tree-form delay line printing, etching or be placed on medium substrate, or be suspended in the air above medium substrate.
Tree-form delay line is dendritic some wires at an end of the radiation tail end near bow tie pulse antenna, is connected with the radiation tail end of antenna through the metallization via hole.
Between the convergent point of two regional tree-form delay lines, be connected through being communicated with line.
Tree-form delay line be shaped as straight line or hair clip shape, its length long enough, be greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee the propagation time of pulse energy on communicated delay lines.
Tree-form delay line and connection line have formed a current path.Pulse signal, at first from the feed end input of bow tie pulse antenna, is transmitted to the radiation tail end of antenna.Radiation tail end at antenna, tree-form delay line and connection line provide additional current paths for the electric current of the residual impulse energy of not radiation, the residual impulse energy of radiation does not enter the tree-form delay line of connection through metallized via hole, avoided the radiation tail end open circuit and made the residual impulse energy of not radiation return to the radiating element of antenna, formed radiation again and cause tail pulse.The densely distributed metallization via hole be connected with tree-form delay line makes the residual impulse energy of bow tie pulse antenna radiation tail end can as often as possible enter delay line, the appearance of more effective delay tail pulse.Due to the back side of delay line in knot radiation patch main radiation direction, not only the energy emission on main radiation direction does not exert an influence delay line to bow tie pulse antenna in the space that it occupies; And due to the effect of blocking of radiation patch, the residual impulse electric current towards the energy of main radiation direction radiation seldom, only has residual impulse energy electric current to run into and reflects back into the radiation again of knot radiation patch on delay line, form tail pulse.Due to the delayed action of delay line, with respect to the primary radiation pulse, tail pulse has had delay on time of occurrence.From feed end, the current path of connection more is conducive to the radiation of pulse energy in addition.Owing to there is no loading resistor, also less to the adverse effect of antenna radiation efficiency simultaneously.But the length, the material around delay line, the consistency of the pore size distribution of metallizing etc. of adjusting delay line all in pulse signals tail pulse with respect to the time of occurrence of main pulse, exert an influence.
Beneficial effect:The invention has the beneficial effects as follows, the connection tree-form delay line bow tie pulse antenna proposed has postponed in the pulse signal tail pulse with respect to the time of occurrence of main pulse, effectively avoid the interference of tail pulse to echo signal in the impulse radiation waveform, less to the adverse effect of antenna radiation efficiency simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, have: knot radiation patch 1, medium substrate 2, tree-form delay line 3, the feed end 4 of antenna, the radiation tail end 5 of antenna, the convergent point 6 of delay line, be communicated with line 7, metallization via hole 8.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The technical solution adopted in the present invention is: be communicated with tree-form delay line bow tie pulse antenna and be comprised of a pair of knot radiation patch, medium substrate and tree-form delay line, wherein knot radiation patch and tree-form 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 bow tie pulse antenna, and the other end is the radiation tail end of bow tie pulse antenna.The tree-form 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 like this radiation of delay line on the antenna main radiation direction be blocked by the knot radiation patch, thereby the radiation of antenna is not exerted an influence.At the medium substrate back side of each knot radiation patch, be distributed with one or racemosus tree-form delay line, these tree-form 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 with other delay line, converge after extending, just as tree structure, the tree-form delay line in two zones is connected through being communicated with line by convergent point, each tree-form delay line is dendroid at its other direction end, by the metallization via hole, with the radiation tail end of antenna, be connected respectively, metallizing, via hole is dense to be uniformly distributed, several are one group and are connected one by one with the tree-like branch wire of a tree-form delay line.At first pulse signal adds from the feed end of bow tie pulse antenna, be transmitted to the radiation tail end of antenna, the radiation tail end of antenna not the residual impulse energy of radiation through the metallization via hole, enter the tree-form delay line of connection, delay line provides additional current paths for the electric current of residual impulse energy, avoided the radiation tail end open circuit and made the residual impulse energy of not radiation return to the radiating element of antenna, formed radiation again and cause tail pulse.The densely distributed metallization via hole be connected with tree-form delay line makes the residual impulse energy of bow tie pulse antenna radiation tail end can as often as possible enter current path, thereby can more effectively postpone the appearance of tail pulse.Tree-form delay line printing or the etching be communicated with or stick on medium substrate, also can be suspended in air.Due to the back side of delay line in knot radiation patch main radiation direction, not only the energy emission on main radiation direction does not exert an influence delay line to bow tie pulse antenna in the space that it occupies; And due to the effect of blocking of knot paster, the residual impulse electric current towards the energy of main radiation direction radiation seldom, only has residual impulse energy electric current to run into and reflects back into the radiation again of knot radiation patch on delay line, form tail pulse.Due to the delayed action of delay line, with respect to the primary radiation pulse, tail pulse has had delay on time of occurrence.From feed end, the current path of connection more is conducive to the radiation of pulse energy in addition.Owing to there is no loading resistor, also less to the adverse effect of antenna radiation efficiency simultaneously.But the length, the material around delay line, the consistency of the pore size distribution of metallizing etc. of adjusting delay line all in pulse signals tail pulse with respect to the time of occurrence of main pulse, exert an influence.
Structurally, this connection tree-form delay line bow tie pulse antenna is comprised of knot radiation patch 1, medium substrate 2 and tree-form delay line 3, and wherein knot radiation patch 1 and tree-form 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 bow tie pulse antenna, and the other end is the radiation tail end 5 of bow tie pulse antenna.The tree-form delay line 3 of the connection of two or racemosus is positioned at the zone at two the corresponding medium substrate of knot radiation patch 12 back sides, medium substrate 2 back sides right in each knot radiation patch 1 are distributed with one or racemosus tree-form delay line 3, these tree-form 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 with other delay line, converge after extending, just as tree structure, the tree-form delay line 3 in two zones is connected through being communicated with line 7 by the convergent point 6 of delay line, each tree-form delay line 3 is dendroid at its other direction end, by metallization via hole 8, with the radiation tail end 5 of antenna, be connected respectively.Between two ends of each tree-form delay line 3, can be rectilinear wire, also can be the hairpin wire, the length long enough of delay line, be greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee the propagation time of pulse energy on communicated delay lines.The metallization via hole 8 that connects the radiation tail end 5 of tree-form delay line 3 and antenna can be metal column or hollow metal via hole, and via hole is dense to be uniformly distributed, and penetrates medium substrate 2, and several are one group and are connected one by one with the tree-like radiation conductor of a tree-form delay line 3.Tree-form delay line 3 and connection line 7 form the tree-form delay line be communicated with, for pulse current provides additional current path.
On manufacturing, the manufacturing process of this connection tree-form delay line bow tie pulse antenna can adopt semiconductor technology, ceramic process, laser technology or printed circuit technology.This connection tree-form delay line bow tie pulse antenna is comprised of knot radiation patch 1, medium substrate 2 and tree-form delay line 3, wherein knot radiation patch 1 consists 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-form delay line 3 is produced on the opposite side of medium substrate 2, the length long enough of delay line, to guarantee that the propagation time of pulse energy on communicated delay lines is greater than the time of delay of needed tail pulse with respect to the primary radiation pulse, therefore between two ends of each tree-form delay line 3, can be rectilinear wire, or be made as the hairpin wire to guarantee the delay line long enough.Tree-form delay line 3 can printing, etching or is placed on medium substrate 2, also can be suspended in the air above medium substrate 2; Being communicated with line 7 can or be etched in the micro-band transfer wire on medium substrate 2 for printing, also can be for being suspended at airborne wire.
According to the above, just can realize the present invention.
Claims (4)
1. one kind is communicated with tree-form delay line bow tie pulse antenna, it is characterized in that this connection tree-form delay line bow tie pulse antenna comprises a pair of knot radiation patch (1), medium substrate (2) and tree-form delay line (3); Wherein knot radiation patch (1) and tree-form 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 bow tie pulse antenna, and the other end is the radiation tail end (5) of bow tie pulse antenna; Tree-form delay line (3) is positioned at the zone at the medium substrate back side that two knot radiation patch (1) comprise, each regional tree-form delay line (3) is the convergent point (6) that tree-shaped distribution converges at delay line, the tree-form delay line in two zones (3) is connected through being communicated with line (7) by convergent point, and the end of each branch of tree-form delay line (3) is connected with the radiation tail end (5) of antenna by metallization via hole (8);
Described knot radiation patch (1) be shaped as triangle or fan-shaped;
Tree-form delay line (3) and be communicated with line (7) printing, etching or be placed on medium substrate (2).
2. connection tree-form delay line bow tie pulse antenna according to claim 1, it is characterized in that the end of tree-form delay line (3) at the radiation tail end (5) near bow tie pulse antenna, the densely distributed dendritic branch wire end that is is arranged, through metallization via hole (8), be connected with the radiation tail end (5) of antenna, make the residual impulse energy of radiation tail end (5) can as often as possible enter current path.
3. connection tree-form delay line bow tie pulse antenna according to claim 1, it is characterized in that the end of tree-form delay line (3) at the radiation tail end away from bow tie pulse antenna (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 with other delay line, converge after extending, just as tree structure; The tree-form delay line in two zones (3) is connected through being communicated with line (7) by convergent point.
4. connection tree-form delay line bow tie pulse antenna according to claim 1, what it is characterized in that tree-form delay line (3) is shaped as straight line or hair clip shape, its length long enough, be greater than the time of delay of needed tail pulse with respect to the primary radiation pulse to guarantee the propagation time of pulse energy on communicated delay lines.
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 |
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| CN2011103385943A CN102354802B (en) | 2011-11-01 | 2011-11-01 | Connected tree-form delay line bow tie pulse antenna |
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| Publication Number | Publication Date |
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| CN102354802A CN102354802A (en) | 2012-02-15 |
| CN102354802B true CN102354802B (en) | 2013-11-27 |
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Citations (3)
| 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 |
| CN102157769A (en) * | 2011-03-25 | 2011-08-17 | 东南大学 | Microstrip line-slot line transition structure with stop band |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8405552B2 (en) * | 2007-04-16 | 2013-03-26 | Samsung Thales Co., Ltd. | Multi-resonant broadband antenna |
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Patent Citations (3)
| 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 |
| 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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| CN102354802A (en) | 2012-02-15 |
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