CN102420349B - Tree access delay line resistor loading tapered slot line pulse antenna - Google Patents
Tree access delay line resistor loading tapered slot line pulse antenna Download PDFInfo
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- CN102420349B CN102420349B CN2011104408302A CN201110440830A CN102420349B CN 102420349 B CN102420349 B CN 102420349B CN 2011104408302 A CN2011104408302 A CN 2011104408302A CN 201110440830 A CN201110440830 A CN 201110440830A CN 102420349 B CN102420349 B CN 102420349B
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Abstract
The invention discloses a tree access delay line resistor loading tapered slot line pulse antenna, which consists of tapered slot line radiation patches (1), a dielectric substrate (2), a micro-strip feed line (3), tree access lines (4), delay lines (5) and loading resistors (6); the edges of a gap between two patches are expanded to form a flared opening; the maximum positions of the tail openings of the patches are radiation tail ends (8), and the other end of the gap opening is an open-circuit end of a slot line (9); one end of a micro-strip (3) is a feed end (10), and the other end of the micro-strip (3) is a transition section (11) from the micro-strip to the slot line; the access lines (4) and the delay lines (5) are positioned in the back area of the substrate (2) of the two patches; the branches of the access lines (4) of each area are gathered at a gathering point (13), and the tail ends of the branches are connected with the tail ends (8) through metallized through holes (14); and one end of each of the delay lines (5) is connected with the gathering point (13), the other ends of the delay lines (5) are open-circuited, and the loading resistors (6) are distributed on the delay lines (5). The antenna can reduce the amplitude of trailing pulse.
Description
Technical field
The present invention relates to a kind of pulse antenna, especially a kind of tree access delay line resistor loading tapered slot line pulse antenna, belong to the technical field that pulse antenna is manufactured.
Background technology
During pulse antenna pulses of radiation signal, at pulse current, from antenna input, flow to antenna end during this period of time in, if pulse antenna can not all radiate electromagnetic energy, have the remaining pulse current do not radiate at the aerial radiation end, the residual impulse electric current can return along original path in antenna, continue the electromagnetic radiation energy in process after this, 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.Tapered slot antenna is as a kind of pulse antenna, has a working band wide, makes the advantages such as simple.The application of tapered slot antenna is very extensive, and more application is also arranged in ground penetrating radar.At present, for gradual change grooved wire pulse antenna, the method for reduction tail pulse impact commonly used is the resistance Loading Method.It is all distributed load that existing resistance loads major part, now resistance is between the distributing point and radiation tail end of antenna, loading resistor also can absorb the pulse energy that originally can radiate at the residual impulse energy that absorbs the aerial radiation end, therefore adopts this kind of resistance loading can reduce the radiation efficiency of antenna simultaneously.Gradual change grooved wire pulse antenna radiation tail end size is relatively large simultaneously, the end current distribution is larger, a small amount of resistance be placed between distributing point and radiation tail end loads the residual impulse electric current that can not effectively absorb antenna end, thereby limited to the improvement of tail pulse adverse effect.And the lineman makes frequency range when higher the same day, the size of antenna is less, is difficult to arrange many longer lines.
Summary of the invention
Technical problem:The present invention seeks to propose a kind of tree access delay line resistor loading tapered slot line pulse antenna, this antenna, in the situation that size is little, can effectively reduce the tail pulse amplitude, and less on the impact of antenna radiation efficiency.
Technical scheme:Tree access delay line resistor loading tapered slot line pulse antenna of the present invention comprises a pair of tapered slot radiation patch, medium substrate, microstrip feed line, tree-like tie-in line, delay line and loading resistor; Two tapered slot radiation patch symmetries be positioned at the medium substrate the same face, the conduction band of microstrip feed line, tree-like tie-in line and delay line are at the another side of medium substrate; Between two radiation patch, the edge in gap opens the formation horn opening, and tapered slot radiation patch end openings maximum position is the aerial radiation end, and the other end relative with horn opening is line of rabbet joint open end; The outer end of microstrip feed line is the feed end of antenna, and inner microstrip feed line before this, to the changeover portion of the line of rabbet joint, then is connected the conduction band of microstrip feed line by the short circuit hole endways with the tapered slot radiation patch of another side; The branch of tree-like tie-in line converges at convergent point and connects delay line, and the end of tree-like tie-in line branch other direction is connected with the radiation tail end at the back side through the metallization via hole; Delay line one end is connected with convergent point, and the other end is open circuit, and loading resistor is distributed on delay line.
Described microstrip feed line is to the open end of the close line of rabbet joint of changeover portion of the line of rabbet joint.
Tree-like tie-in line and delay line printing, etching or be placed on medium substrate, or be suspended in the air above medium substrate.
The radiation tail end of antenna is joined by the branch end of densely distributed metallization via hole and tree-like tie-in line, makes the residual impulse energy of gradual change grooved wire pulse antenna radiation tail end can as often as possible enter current path.
Delay line be shaped as straight line or hair clip shape, its length is greater than half of the high workload wavelength of antenna.
Delay line is reciprocally arrayed wire back and forth, and the length direction of wire is parallel with the main radiation direction of antenna.
Loading resistor is the resistance of the resistance of lumped parameter form or the loss of delay line itself of the take distributed constant form that is resistance.
There are some discontinuous places on delay line, by loading resistor, it are connected, form the current path that delay line resistor loads.Pulse signal is at first from the feed end input of gradual change grooved wire pulse antenna, and through microstrip feed line, micro-changeover portion that takes the line of rabbet joint to, propagate on the line of rabbet joint.Propagate into radiant section through the line of rabbet joint again, propagation limit, limit is radiated to the radiation tail end of antenna, the radiation tail end of antenna not the residual impulse energy of radiation enter through metallized via hole the delay line that tree-like tie-in line and resistance load, tree-like tie-in line and delay line provide additional current paths for the electric current of residual impulse energy, avoided making at radiation tail end open circuit the residual impulse energy of not radiation to return to the radiating element of antenna, formed radiation again and cause tail pulse; Loading resistor on delay line enters consumption the residual impulse energy of current path, makes the tail pulse amplitude greatly reduce.The densely distributed metallization via hole be connected with tree-like tie-in line makes the residual impulse energy of gradual change grooved wire pulse antenna radiation tail end can as often as possible enter delay line, the more effective impact that reduces tail pulse.Because the direction of the most of line segment of delay line is parallel with the main radiation direction of tapered slot antenna, thus on delay line towards the energy of main radiation direction radiation seldom.And in the space that occupies at it of delay line, to gradual change grooved wire pulse antenna, the energy emission on main radiation direction does not exert an influence.Do not absorb the pulse current of tapered slot radiation patch due to loading resistor, this kind of resistance load mode is also less to the adverse effect of antenna radiation efficiency simultaneously.Hairpin-shaped delay line can provide long as far as possible current path in less dimensional space, be particularly suitable for the small size antenna that working frequency range is high.The delay line open circuit also makes delay line not need to cross over the gap between paster in addition, avoids affecting the normal radiation of aerial radiation paster.Distribution mode, the consistency of via hole and the length of delay line etc. of resistance on delay line of the resistance sum of adjustment loading resistor, adjustment loading resistor can change the amplitude of tail pulse in pulse signal.
Beneficial effect:The invention has the beneficial effects as follows, the resistance that gradual change grooved wire pulse antenna has been carried out to tree-like access delay line loads, make under small size antenna condition, can effectively reduce the amplitude of tail pulse in radiation waveform, reduce the adverse effect of loading resistor paired pulses antenna radiation efficiency, delay line does not affect the normal radiation of antenna yet.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, have: tapered slot radiation patch 1, medium substrate 2, microstrip feed line 3, tree-like tie-in line 4, delay line 5, loading resistor 6, the conduction band 7 of microstrip feed line, the radiation tail end 8 of antenna, the line of rabbet joint 9, the feed end 10 of antenna, micro-changeover portion 11 that takes the line of rabbet joint to, short circuit hole 12, tie-in line convergent point 13, metallization via hole 14.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The technical solution adopted in the present invention is: tree access delay line resistor loading tapered slot line pulse antenna is comprised of a pair of tapered slot radiation patch, medium substrate, microstrip feed line, a pair of tree-like tie-in line, delay line and loading resistor; Wherein the tapered slot radiation patch is positioned at the one side of medium substrate, and the conduction band of microstrip feed line, tree-like tie-in line, delay line and loading resistor are positioned at the another side of medium substrate.Two tapered slot radiation patch are positioned at the same surface of medium substrate, and between two tapered slot radiation patch, the edge in gap opens and forms flaring opening, and the position of radiation patch end openings maximum, be the radiation tail end of antenna.At gap opening, the other direction end is one section, and between two tapered slot radiation patch, the edge in gap is parallel, forms the line of rabbet joint, between the line of rabbet joint and radiation tail end, the paster gap width changes one section radiant section that is antenna; One end of the line of rabbet joint is open circuit, the radiant section of another termination antenna of the line of rabbet joint.The ground plane of microstrip feed line is exactly a slice tapered slot radiation patch, and an end of microstrip feed line is the feed end of antenna, and the other end of microstrip feed line is micro-changeover portion that takes the line of rabbet joint to; Changeover portion is near the open end of the line of rabbet joint, and at changeover portion, the conduction band of micro-band strides across gap above the medium substrate of the line of rabbet joint, and then by the short circuit hole, the edge in gap is connected with another sheet tapered slot paster.Tree-like tie-in line and delay line are positioned at the zone at the medium substrate back side of tapered slot radiation patch.The medium substrate back side of each tapered slot radiation patch is distributed with a tree-like tie-in line and delay line, and the branch of tree-like tie-in line converges at a place radially, i.e. the convergent point of tie-in line.One end of delay line is connected with convergent point, and the other end is open circuit, and the length of delay line is greater than the over half of antenna maximum functional wavelength, and loading resistor is positioned on delay line.Each tree-like tie-in line branch, at its other direction end, is connected with the radiation tail end of antenna by metallized via hole, and via hole is dense is uniformly distributed in metallization, with the residual impulse energy of radiation-absorbing end as far as possible.There are some discontinuous places on delay line, by loading resistor, it are connected, the current path that the delay line resistor of formation loads.At first pulse signal adds from the feed end of gradual change grooved wire pulse antenna, and through microstrip feed line, micro-changeover portion that takes the line of rabbet joint to, propagate on the line of rabbet joint.Propagate into radiant section through the line of rabbet joint again, propagation limit, limit is radiated to the radiation tail end of antenna, the radiation tail end of antenna not the residual impulse energy of radiation enter through the metallization via hole delay line that tree-like tie-in line and resistance load, avoided making at radiation tail end open circuit the residual impulse energy of not radiation to return to the radiating element of antenna, formed radiation again and cause tail pulse; Tie-in line is for the electric current of residual impulse energy provides additional current paths together with delay line, and the loading resistor on delay line enters consumption the residual impulse energy of current path, makes the tail pulse amplitude greatly reduce.Densely distributed metallization via hole makes the residual impulse energy of gradual change grooved wire pulse antenna radiation tail end can as often as possible enter current path, thereby can more effectively reduce the amplitude of tail pulse.The shape of delay line is straight line, or hair clip shape, and tree-like like this tie-in line and delay line can provide long as far as possible current path in less dimensional space, be particularly suitable for the small size antenna that working frequency range is high.Tree-like tie-in line and delay line printing or etching or stick on medium substrate, also can be suspended in air.Because the direction of the most of line segment of delay line is parallel with the main radiation direction of tapered slot antenna, thus on delay line towards the energy of main radiation direction radiation seldom.And in the space that occupies at it of delay line and tie-in line, to gradual change grooved wire pulse antenna, the energy emission on main radiation direction does not exert an influence.Simultaneously, due to the resistance pulse current of radiation-absorbing paster radiation not, this kind of resistance loads also less to the adverse effect of antenna radiation efficiency.The delay line open circuit also makes delay line not need to cross over the gap between paster in addition, avoids affecting the normal radiation of aerial radiation paster.Adjust the amplitude that the resistance sum of loading resistor, the distribution mode of resistance on delay line of adjusting loading resistor, the consistency of via hole, the length of delay line etc. can change tail pulse in pulse signal.
Structurally, this tree access delay line resistor loading tapered slot line pulse antenna is comprised of tapered slot radiation patch 1, medium substrate 2, microstrip feed line 3, tree-like tie-in line 4, delay line 5 and loading resistor 6, wherein the conduction band 7 of tapered slot radiation patch 1 and microstrip feed line 3, tree-like tie-in line 4, delay line 5, loading resistor 6 lay respectively at the both sides of same medium substrate 2, and loading resistor 6 is distributed on delay line 5.Between two tapered slot radiation patch 1, the edge in gap opens and forms flaring opening, and the position of radiation patch 1 end openings maximum, be the radiation tail end 8 of antenna; One section of the direction end contrary with radiation tail end 8, the edge in two tapered slot radiation patch gaps is parallel, forms the line of rabbet joint 9, the radiant section that between the line of rabbet joint 9 and radiation tail end 8, a section of the variation of paster gap width is antenna; One end of the line of rabbet joint 9 is open circuits, the radiant section of another termination antenna of the line of rabbet joint 9; The ground plane of microstrip feed line 3 is exactly a slice tapered slot radiation patch 1, and an end of microstrip feed line 3 is feed ends 10 of antenna, and the other end of microstrip feed line 3 is micro-changeover portions 11 that take the line of rabbet joint to; Changeover portion 11 is near the open end of the line of rabbet joint 9, and at changeover portion 11, micro-conduction band 7 with 3 strides across gap above the line of rabbet joint 9 medium substrates 2, and then the edge by 12Zai gap, short circuit hole is connected with another sheet tapered slot paster 1.Tree-like tie-in line 4 and delay line 5 are positioned at the zone at the corresponding medium substrate of tapered slot radiation patch 12 back sides, in each tapered slot radiation patch 1, right medium substrate 2 back sides are distributed with a tree-like tie-in line 4, tree-like tie-in line 4 branches converge at tie-in line convergent point 13 radially, the branch of each tree-like tie-in line 4, at its other direction end, is connected with the radiation tail end 8 of antenna by metallization via hole 14.One end of delay line 5 is connected with convergent point 13, and the other end is open circuit, and the length of delay line 5 is greater than the over half of antenna maximum functional wavelength, and the shape of delay line 5 can be linear, can be also hair clip shape.Short circuit hole 12 or metallization via hole 14 can be metal column or hollow metal via hole, and via hole 14 is dense to be uniformly distributed, and penetrates medium substrate 2, with the branch end of each tree-like tie-in line 4, is connected one by one.Be distributed with loading resistor 6 on delay line 5, loading resistor 6 can be the resistance of distributed constant form, and loading resistor 6 is provided by the loss of delay line 5, and now delay line 5 itself is lossy transmission; Loading resistor 6 can be also the resistance of lumped parameter form, now on delay line 5, has some discontinuous places, by loading resistor 6, it is connected.Tree-like tie-in line 4, delay line 5 and loading resistor 6 form the current path that tree-like access delay line resistance loads.
On manufacturing, the manufacturing process of this tree access delay line resistor loading tapered slot line pulse antenna can adopt semiconductor technology, ceramic process, laser technology or printed circuit technology.This tree access delay line resistor loading tapered slot line pulse antenna is comprised of tapered slot radiation patch 1, medium substrate 2, microstrip feed line 3, tree-like tie-in line 4, delay line 5 and loading resistor 6, wherein tapered slot radiation patch 1 conductor material good by electric conductivity forms, be positioned at the same surface of medium substrate 2, medium substrate 2 is wanted the alap dielectric material of service wear.Tree-like tie-in line 4 and delay line 5 are produced on the another side of medium substrate 2, the length of delay line 5 is greater than the half or more of antenna maximum functional wavelength usually, therefore being shaped as straight line or being made as hair clip shape of delay line 5, to guarantee that in the dimensional space little at antenna, delay line 5 can long enough.Be distributed with loading resistor 6 on delay line 5, loading resistor 6 can be the resistance of surface mount resistor or band lead-in wire; Wire that also can be larger with resistance is as delay line 5, at this moment can be less with or without loading resistor 6, the conductor resistances of delay line 5 itself have just replaced the effect of loading resistor 6.
According to the above, just can realize the present invention.
Claims (7)
1. a tree access delay line resistor loading tapered slot line pulse antenna, is characterized in that this antenna comprises a pair of tapered slot radiation patch (1), medium substrate (2), microstrip feed line (3), tree-like tie-in line (4), delay line (5) and loading resistor (6); Two tapered slot radiation patch (1) are symmetrical is positioned at medium substrate (2) the same face, and the conduction band of microstrip feed line (7), tree-like tie-in line (4) and delay line (5) are at the another side of medium substrate (2); Between two radiation patch (1), the edge in gap opens the formation horn opening, and tapered slot radiation patch (1) end openings maximum position is aerial radiation end (8), and the other end relative with horn opening is the line of rabbet joint (9) open end; The outer end of microstrip feed line (3) is feed end (10), inner microstrip feed line was to the changeover portion (11) of the line of rabbet joint before this, and then the end at changeover portion (11) is connected microstrip feed line conduction band (7) by short circuit hole (12) with the tapered slot radiation patch (1) of another side; The branch of tree-like tie-in line (4) converges at convergent point (13) and connects delay line (5), and the end of tree-like tie-in line (4) branch other direction is connected with the radiation tail end (8) at the back side through metallization via hole (14); Delay line (5) one ends are connected with convergent point (13), and the other end is open circuit, and loading resistor (6) is distributed on delay line (5).
2. tree access delay line resistor loading tapered slot line pulse antenna according to claim 1, is characterized in that the open end of described microstrip feed line (3) to the close line of rabbet joint (9) of changeover portion (11) of the line of rabbet joint (9).
3. tree access delay line resistor loading tapered slot line pulse antenna according to claim 1, is characterized in that tree-like tie-in line (4) and delay line (5) printing, etching or be placed on medium substrate (2).
4. tree access delay line resistor loading tapered slot line pulse antenna according to claim 1, the radiation tail end (8) that it is characterized in that antenna is joined by metallization via hole (14) and the branch end of tree-like tie-in line (4), makes the residual impulse energy of gradual change grooved wire pulse antenna radiation tail end (8) can as often as possible enter current path.
5. tree access delay line resistor loading tapered slot line pulse antenna according to claim 1 and 2, what it is characterized in that delay line (5) is shaped as straight line or hair clip shape, and its length is greater than half of the high workload wavelength of antenna.
6. according to claim 1,3 or 5 described tree access delay line resistor loading tapered slot line pulse antennas, it is characterized in that delay line (5) is for reciprocally arrayed wire back and forth, the length direction of wire is parallel with the main radiation direction of antenna.
7. tree access delay line resistor loading tapered slot line pulse antenna according to claim 1, is characterized in that loading resistor (6) is the resistance of the resistance of lumped parameter form or the loss of delay line (5) itself of the take distributed constant form that is resistance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104408302A CN102420349B (en) | 2011-12-26 | 2011-12-26 | Tree access delay line resistor loading tapered slot line pulse antenna |
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| CN2011104408302A CN102420349B (en) | 2011-12-26 | 2011-12-26 | Tree access delay line resistor loading tapered slot line pulse antenna |
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| CN102420349A CN102420349A (en) | 2012-04-18 |
| CN102420349B true CN102420349B (en) | 2013-12-04 |
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| CN105578714A (en) * | 2015-12-11 | 2016-05-11 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Novel lamination structure of multilayer high-speed PCB and signal via-hole optimization method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189433A (en) * | 1991-10-09 | 1993-02-23 | The United States Of America As Represented By The Secretary Of The Army | Slotted microstrip electronic scan antenna |
| US6900770B2 (en) * | 2003-07-29 | 2005-05-31 | Bae Systems Information And Electronic Systems Integration Inc. | Combined ultra wideband Vivaldi notch/meander line loaded antenna |
| CN1697257A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Delay line loaded impulse antenna |
| CN102157769A (en) * | 2011-03-25 | 2011-08-17 | 东南大学 | Microstrip line-slot line transition structure with stop band |
| CN202454727U (en) * | 2011-12-26 | 2012-09-26 | 南京邮电大学 | Tree-shaped access delay line resistor loaded tapered slot line pulse antenna |
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2011
- 2011-12-26 CN CN2011104408302A patent/CN102420349B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189433A (en) * | 1991-10-09 | 1993-02-23 | The United States Of America As Represented By The Secretary Of The Army | Slotted microstrip electronic scan antenna |
| US6900770B2 (en) * | 2003-07-29 | 2005-05-31 | Bae Systems Information And Electronic Systems Integration Inc. | Combined ultra wideband Vivaldi notch/meander line loaded antenna |
| CN1697257A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Delay line loaded impulse antenna |
| CN102157769A (en) * | 2011-03-25 | 2011-08-17 | 东南大学 | Microstrip line-slot line transition structure with stop band |
| CN202454727U (en) * | 2011-12-26 | 2012-09-26 | 南京邮电大学 | Tree-shaped access delay line resistor loaded tapered slot line pulse antenna |
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