CN102509862A - Resistance loading bow-tie pulse antenna with delay lines - Google Patents
Resistance loading bow-tie pulse antenna with delay lines Download PDFInfo
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- CN102509862A CN102509862A CN2011103385820A CN201110338582A CN102509862A CN 102509862 A CN102509862 A CN 102509862A CN 2011103385820 A CN2011103385820 A CN 2011103385820A CN 201110338582 A CN201110338582 A CN 201110338582A CN 102509862 A CN102509862 A CN 102509862A
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Abstract
The invention relates to a resistance loading bow-tie pulse antenna with delay lines, in particular to a resistance loading pulse antenna. The antenna consists of bow-tie radiating patches (1), a dielectric baseplate (2), delay lines (3) and loading resistors (4), wherein the bow-tie radiating patches (1), the delay lines and the loading resistors (4) distributed on the delay lines are positioned on two sides of the dielectric baseplate (2). One end at which two radiating patches are adjacent is a feeding end (5) of the bow-tie pulse antenna, and the other end is a radiating tail end (6) of the bow-tie pulse antenna. A plurality of delay lines (3) are positioned in a region on the back surface of the dielectric baseplate (2), which is included in the two radiating patches (1); one ends of the delay lines (3) approaching the radiating tail end (6) are connected with the radiating tail end (6) of the antenna through a metalized via hole (8); and the other ends of the delay lines are converged at a converging point (7) together with the tail ends of other delay lines (3) in the same region, or are open circuits. By using the antenna, the amplitude of a tail pulse can be reduced, and the negative influence on the radiation efficiency of the antenna is decreased.
Description
Technical field
The present invention relates to a kind of pulse antenna, especially a kind of delay line resistance loads the knot 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 GPR, 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 GPR, 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, but resistance loads the radiation efficiency that can reduce antenna.
Summary of the invention
Technical problem:The present invention seeks to propose a kind of delay line resistance and load the knot pulse antenna, this antenna can effectively reduce the tail pulse amplitude, and is less to the influence of antenna radiation efficiency simultaneously
Technical scheme:Delay line resistance of the present invention loads the knot pulse antenna and comprises a pair of knot radiation patch, medium substrate, delay line and loading resistor; Wherein the knot radiation patch is positioned at the one side of medium substrate, and delay line, loading resistor are positioned at the another side of medium substrate; Loading resistor is distributed on the delay line; The close the inner of two knot radiation patch is the feed end of knot pulse antenna, and the other end is that the radiation of knot pulse antenna is terminal; Some delay lines are positioned at the zone at the medium substrate back side that two knot radiation patch are comprised; Each regional delay line one end is connected with the radiation end of antenna through the metallization via hole, the other end or with other delay line ends with the zone intersect at delay line convergent point, or open a way.
Described knot radiation patch be shaped as triangle or fan-shaped;
Delay line is printed, etching perhaps is placed on the medium substrate, or is suspended in the air above the medium substrate.
Delay line be shaped as straight line or hair clip shape, its length is half the greater than the high workload wavelength of antenna;
Loading resistor is the resistance of lumped parameter form or is the resistance of the distributed constant form of resistance with the loss of delay line itself.
There are some discontinuous places on each bar delay line, it are connected, constitute the current path that delay line resistance loads by loading resistor.Pulse signal is at first imported 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 delay line that resistance loads through the metallization via hole; Delay line is that the electric current of residual impulse energy provides additional current paths, and the loading resistor on the delay line will consume the residual impulse energy that gets into current path, make the tail pulse amplitude reduce greatly.Through the number of metal via hole that links to each other with some delay lines, the terminal residual impulse energy of knot pulse antenna radiation can as often as possible get into delay line, the more effective influence that reduces tail pulse.Because delay line is at the back side of knot radiation patch main radiation direction, 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 energy on delay line towards the energy of main radiation direction radiation seldom.Because loading resistor does not absorb the pulse current of knot radiation patch, this kind resistance load mode is also less to the adverse effect of antenna radiation efficiency simultaneously.The distribution mode of resistance on delay line of the resistance sum of adjustment loading resistor, adjustment loading resistor, the number of delay line, the length of delay line etc. can change the amplitude of tail pulse in the pulse signal.
Beneficial effect:The invention has the beneficial effects as follows that the resistance that the knot pulse antenna has been carried out the band delay line loads, and effectively reduces the amplitude of tail pulse in the radiation waveform, broadening the impedance bandwidth of antenna, reduced the adverse effect of loading resistor paired pulses antenna radiation efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Have among the figure: knot radiation patch 1, medium substrate 2, delay line 3, loading resistor 4, the feed end 5 of antenna, the radiation end 6 of antenna, the convergent point 7 of delay line, 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: delay line resistance loads the knot pulse antenna and is made up of knot radiation patch, medium substrate, delay line and loading resistor; Wherein the knot radiation patch is positioned at medium substrate one side, and delay line and distribution loading resistor on it are positioned at the opposite side 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 ends 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.Delay line is positioned at the zone at the medium substrate back side that two knot radiation patch are comprised, and 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.The medium substrate back side in each knot radiation patch is distributed with some delay lines; These delay line one ends are terminal near the radiation of antenna; Link to each other through the plated-through hole that penetrates medium substrate with the radiation end of antenna, the other end perhaps intersects at the convergent point of delay line, perhaps open circuit.There are some discontinuous places on each bar delay line, it are connected, constitute the current path that delay line resistance loads by loading resistor.Pulse signal at first adds from the feed end of knot pulse antenna; The radiation that is transmitted to antenna is terminal; At the radiation end of the antenna delay line that loads of the resistance that gets into through the metallization via hole of the residual impulse energy of radiation not; Delay line is that the electric current of residual impulse energy provides additional current paths, and the residual impulse energy of radiation does not get into the tree-like delay line that resistance loads through metallized via hole, has avoided the tail pulse that causes because of the terminal reflection of aerial radiation; Loading resistor on the delay line will consume the residual impulse energy that gets into current path, make the tail pulse amplitude reduce greatly.Through the number of metal through hole that links to each other with some delay lines, the terminal residual impulse energy of knot pulse antenna radiation can as often as possible get into delay line, the more effective influence that reduces tail pulse.Delay line printing or etching 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, 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 energy on delay line towards the energy of main radiation direction radiation seldom.Simultaneously because the resistance pulse current of absorbed radiation not, this kind resistance loads also less to the adverse effect of antenna radiation efficiency.The distribution mode of resistance on delay line of the resistance sum of adjustment loading resistor, adjustment loading resistor, the number of delay line, the length of delay line etc. can change the amplitude of tail pulse in the pulse signal.
Structurally; This delay line resistance loads the knot pulse antenna and is made up of knot radiation patch 1, medium substrate 2, delay line 3 and loading resistor 4; Wherein knot radiation patch 1 and delay line 3, loading resistor 4 lay respectively at the both sides of same medium substrate 2, and loading resistor 4 is distributed on the delay line 3.One end of knot radiation patch 1 is the feed end 5 of knot pulse antenna, and the other end is the radiation terminal 6 of knot pulse antenna.Some delay lines 3 are 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 two or some delay lines 3; These delay lines 3 perhaps intersect at the convergent point 7 of delay line near an end of knot pulse antenna feed end 5; Perhaps open a way; Each bar delay line 3 is terminal at its other direction, promptly near an end of the radiation terminal 6 of antenna, links to each other with the radiation terminal 6 of antenna through the metallization via hole 8 that penetrates medium substrate 2.Can be rectilinear wire between two ends of each bar delay line 3, also can be the hairpin lead, the length of delay line is half the or more greater than antenna maximum functional wavelength usually.The metallization via hole 8 of the radiation of connection delay line 3 and antenna terminal 6 can be metal column or hollow metal via hole.Be distributed with loading resistor 4 on the delay line 3, loading resistor 4 can be the resistance of distributed constant form, and this moment, delay line 3 itself was a lossy transmission, and loading resistor 4 is provided by the loss of transmission line; Also can be the resistance of lumped parameter form, exist some discontinuous places on each bar delay line 3 this moment, by loading resistor 4 it is connected.Delay line 3 constitutes the current path that delay line resistance loads with loading resistor 4.
On making, the manufacturing process that this delay line resistance loads the knot pulse antenna can adopt semiconductor technology, ceramic process, laser technology or printed circuit technology.This delay line resistance loads the knot pulse antenna and is made up of knot radiation patch 1, medium substrate 2, delay line 3 and 4 of loading resistors; 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.Delay line 3 is produced on the opposite side of medium substrate 2; The length of delay line is half the or more greater than antenna maximum functional wavelength usually; Therefore can be rectilinear wire between two ends of each bar delay line 3, perhaps be made as the hairpin lead to guarantee the delay line long enough.Be distributed with loading resistor 4 on the delay line 3, loading resistor 4 can be the resistance of surface mount resistor or band lead-in wire; Also can be with the bigger lead of resistance as delay line, at this moment can be less with or without loading resistor, the conductor resistance of delay line itself has just replaced the effect of loading resistor.
According to the above, just can realize the present invention.
Claims (5)
1. a delay line resistance loads the knot pulse antenna, it is characterized in that this delay line resistance loads the knot pulse antenna and comprises a pair of knot radiation patch (1), medium substrate (2), delay line (3) and loading resistor (4); Wherein knot radiation patch (1) is positioned at the one side of medium substrate (2), and delay line (3), loading resistor (4) are positioned at the another side of medium substrate (2); Loading resistor (4) is distributed on the delay line (3); The close the inner of two knot radiation patch (1) is the feed end (5) of knot pulse antenna, and the other end is the radiation terminal (6) of knot pulse antenna; Delay line (3) is positioned at the zone at medium substrate (2) back side that two knot radiation patch (1) are comprised; Its inner convergent point (7) that perhaps converges at delay line of each regional delay line (3); Perhaps open a way, another of every delay line (3) is terminal to be connected with the radiation terminal (6) of antenna through metallization via hole (8).
2. delay line resistance according to claim 1 loads the knot pulse antenna, and what it is characterized in that described knot radiation patch (1) is shaped as triangle or fan-shaped.
3. delay line resistance according to claim 1 loads the knot pulse antenna, it is characterized in that delay line (3) is printed, etching perhaps is placed on the medium substrate (2), or is suspended in the air above the medium substrate (2).
4. load the knot pulse antennas according to claim 1 or 3 described delay line resistance, what it is characterized in that delay line (3) is shaped as straight line or hair clip shape, and its length is half the greater than the high workload wavelength of antenna.
5. delay line resistance according to claim 1 loads the knot pulse antenna, it is characterized in that loading resistor (4) is the resistance of lumped parameter form or is the resistance of the distributed constant form of resistance with the loss of delay line itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110338582.0A CN102509862B (en) | 2011-11-01 | 2011-11-01 | Resistance loading bow-tie pulse antenna with delay lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110338582.0A CN102509862B (en) | 2011-11-01 | 2011-11-01 | Resistance loading bow-tie pulse antenna with delay lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102509862A true CN102509862A (en) | 2012-06-20 |
| CN102509862B CN102509862B (en) | 2014-10-29 |
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| CN201110338582.0A Expired - Fee Related CN102509862B (en) | 2011-11-01 | 2011-11-01 | Resistance loading bow-tie pulse antenna with delay lines |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697257A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Delay line loaded impulse antenna |
| CN101404353A (en) * | 2008-09-09 | 2009-04-08 | 南京邮电大学 | Ultra-broadband folding coil antenna of coplanar waveguide feed and method for producing the same |
| CN101895011A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Wideband printing antenna with symmetrical dipole-antipodal slot line composite structure |
| US20100314453A1 (en) * | 2009-06-16 | 2010-12-16 | Jeong-Seok Kim | Tag antenna using microstrip line, method of manufacturing the same and radio frequency identification tag |
-
2011
- 2011-11-01 CN CN201110338582.0A patent/CN102509862B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697257A (en) * | 2005-06-15 | 2005-11-16 | 东南大学 | Delay line loaded impulse antenna |
| CN101404353A (en) * | 2008-09-09 | 2009-04-08 | 南京邮电大学 | Ultra-broadband folding coil antenna of coplanar waveguide feed and method for producing the same |
| US20100314453A1 (en) * | 2009-06-16 | 2010-12-16 | Jeong-Seok Kim | Tag antenna using microstrip line, method of manufacturing the same and radio frequency identification tag |
| CN101895011A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Wideband printing antenna with symmetrical dipole-antipodal slot line composite structure |
Non-Patent Citations (1)
| Title |
|---|
| YIFAN YIN, LEILEI LIU AND MING ZHANG: "A tapered slot antenna loaded with resistive delay lines", 《IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION》, 8 July 2011 (2011-07-08) * |
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| CN102509862B (en) | 2014-10-29 |
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