CN102361158A - Delay line antipodal Vivaldi pulse antenna - Google Patents
Delay line antipodal Vivaldi pulse antenna Download PDFInfo
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- CN102361158A CN102361158A CN2011103189083A CN201110318908A CN102361158A CN 102361158 A CN102361158 A CN 102361158A CN 2011103189083 A CN2011103189083 A CN 2011103189083A CN 201110318908 A CN201110318908 A CN 201110318908A CN 102361158 A CN102361158 A CN 102361158A
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Abstract
The invention discloses a delay line antipodal Vivaldi pulse antenna, which relates to a pulse antenna for delaying the occurrence time of a tail pulse. The antenna consists of antipodal radiation patches (1), a micro-strip feeder line (2), delay lines (3) and a medium substrate (4), wherein two antipodal Vivaldi radiation patches (1) are arranged on the two faces of the medium substrate (4) respectively; the edges (10) of the two patches stretch to form a tapered opening; positions at the tail ends of the radiation patches (1) where the opening is largest serve as antenna radiation tail ends (5); an antenna transmission section (6) is formed in the other direction of the opening; one end of the transmission section is connected with an antenna radiation section (7), and the other end of the transmission section is connected with the micro-strip feeder line (2); a conduction band (8) of the micro-strip feeder line (2) is connected with the edge of a patch (1) on the same face; the patch (1) on the other face is taken as the grounding surface of the micro-strip feeder line (2); and the radiation tail ends (5) of the two antipodal radiation patches (1) are connected with the delay lines (3). By adopting the antenna, the amplitude of the tail pulse can be lowered effectively.
Description
Technical field
The present invention relates to a kind of pulse antenna, especially a kind of delay line anti-pode Antonio Vivaldi pulse antenna, the manufacturing field of genus pulse antenna.
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, then just have remaining pulse current in antenna end.The residual impulse electric current can return continuation electromagnetic radiation energy along original path in antenna in process after this, in the pulses of radiation waveform of antenna, just has tail pulse like this.These tail pulses can be overlapping in time with the signal from target, disturbs thereby can form echo signal.Therefore need take corresponding measure to reduce the amplitude of tail pulse in these waveforms usually.Anti-pode Antonio Vivaldi antenna is as a kind of pulse antenna, and it is wide to have a working band, high-gain, and advantages such as linear polarization are used very extensively, and more application is also arranged in GPR.At present, known pulse antenna is the amplitude that adopts loading method reduction tail pulse mostly, to reduce its influence to echo signal.The subject matter of these loading methods is: the resistance of loading can cause the reduction of pulse antenna radiation efficiency.
Summary of the invention
Technical problem:The objective of the invention is to propose a kind of delay line anti-pode Antonio Vivaldi pulse antenna; This antenna can delay pulse aerial radiation impulse waveform in time of occurring of tail pulse; Avoid the interference of tail pulse to echo signal, and less to the influence of antenna radiation efficiency.
Technical scheme:Delay line anti-pode Antonio Vivaldi pulse antenna of the present invention comprises anti-pode radiation patch, microstrip feed line, delay line and medium substrate; Two anti-pode radiation patch lay respectively at the two sides of medium substrate; The edge of two anti-pode radiation patch opens and forms flaring opening, and the end of opening is that the radiation of antenna is terminal; The other direction opposite with opening is the span line of antenna; The side edge of a slice anti-pode radiation patch of the conduction band of microstrip feed line and same one side; A slice radiation patch of another side then is the ground plane of microstrip feed line; Aerial radiation end two anti-pode radiation patch all is connected with delay line, and the end of delay line is an open-circuit structure.
Delay line is printed, is etched on the medium substrate, or is placed on the medium substrate or is suspended in the air.
Does not block in the radiation formation of main radiation direction antenna the position of delay line.
Delay line be shaped as back and forth reciprocally arrayed straight line or hair clip shape; Its length long enough; To guarantee the propagation time of pulse energy on delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse, the length direction of lead is parallel with the main radiation direction of antenna.
One end of the span line of antenna links to each other with the aerial radiation section, and the other end is connected with microstrip feed line.
Microstrip feed line is connected with the anti-pode radiation patch from the side, makes microstrip feed line can utilize the space at anti-pode radiation patch place.
Wherein anti-pode radiation patch, microstrip feed line, delay line are all on same medium substrate.Two anti-pode radiation patch lay respectively at the two sides of medium substrate, have only the regional overlaid of few part across two pasters of medium substrate; Two anti-pode radiation patch opposed edges were parallel before this and then open and form flaring opening, and the position that the radiation patch end openings is maximum is that the radiation of antenna is terminal; With one section of the terminal opposite direction end of radiation, the edge of two anti-pode radiation patch is parallel, and this section is the span line of antenna; One section that patch edges dehisces to change between span line and the radiation end is the radiant section of antenna; At span line, across medium substrate, up and down two anti-pode radiation patch some be overlapping; Its edge is parallel; Therefore the span line of antenna can be regarded staggered dull and stereotyped transmission line as, and an end of span line links to each other with the radiant section of antenna, and the other end of span line then links to each other with microstrip feed line; The side edge of a slice anti-pode radiation patch of the conduction band of microstrip feed line and same one side; A slice anti-pode radiation patch of another side is then as the ground plane of microstrip feed line, so an end of microstrip feed line links to each other with the anti-pode radiation patch from side, and the other end of microstrip feed line is the feed end of antenna; Radiation end two anti-pode radiation patch all is connected to delay line, the delay line terminal open circuit.
Delay line linearly shape or hair clip shape distributes, and the length long enough of delay line is to guarantee that the propagation time of pulse energy on delay line is greater than the time of delay of needed tail pulse with respect to the primary radiation pulse.
Delay line is printed, etching perhaps is placed on the medium substrate, or is suspended in the air above the medium substrate.
Pulse signal is imported through microstrip feed line from the antenna feed end, arrives the span line of anti-pode radiation patch then, begins towards the terminal direction of radiation, while transmit emittance to radiant section again.Terminal in radiation; Delay line be in the anti-pode Antonio Vivaldi antenna not the energy of the pulse signal of radiation additional current path is provided; Make the current path that adds on the electric current edge of carrying the residual impulse energy of anti-pode Antonio Vivaldi antenna end move; Avoided at the radiation terminal open circuit and make the residual impulse energy of radiation not return the radiating element of antenna, formed radiation again and cause tail pulse.The residual impulse energy is through getting into delay line.The direction of the most of line segment of delay line is parallel to the main radiation direction of antenna; Therefore the radiation of delay line on main radiation direction is less; And the radiation of hair clip shape adjacent segments has negative function, so the radiation of pulse signal during through delay line is very little, has only to delay line when terminal; The radiation meeting is more intense, forms tail pulse.Because the delayed action of delay line, this tail pulse has had delay in time with respect to the primary radiation pulse of antenna.And delay line does not influence the energy emission of antenna in main radiation direction in its occupied space yet.
Owing to there not being loading resistor, also less simultaneously to the adverse effect of antenna radiation efficiency.The length of the thickness of adjustment medium substrate, the dielectric constant of medium substrate material and magnetic permeability, delay line etc. can change the time of delay of tail pulse in the pulse signal.
Beneficial effect:The invention has the beneficial effects as follows; Anti-pode Antonio Vivaldi antenna has been carried out the delay line loading; Can postpone the time that tail pulse occurs in the antenna impulse radiation waveform; Avoid the interference of tail pulse to echo signal, and less to the influence of antenna radiation efficiency, and delay line does not influence the normal radiation of antenna yet.
Description of drawings
Fig. 1 is the structural representation of antenna of the present invention lower floor.
Fig. 2 is the structural representation on antenna of the present invention upper strata.
Anti-pode radiation patch 1 is arranged, microstrip feed line 2, delay line 3, medium substrate 4, aerial radiation end 5, antenna transmission section 6, aerial radiation section 7, the conduction band 8 of microstrip feed line, antenna feed end 9, anti-pode radiation patch edge 10, delay line terminal 11 among the figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
The technical scheme that the present invention adopted is: this delay line anti-pode Antonio Vivaldi pulse antenna is made up of anti-pode radiation patch, microstrip feed line, delay line and medium substrate, and wherein anti-pode radiation patch, microstrip feed line and delay line are all on same medium substrate.Two anti-pode radiation patch lay respectively at the two sides of medium substrate, have only the regional overlaid of few part across two pasters of medium substrate; Two anti-pode radiation patch opposed edges are opened and are formed flaring opening, and the position that the radiation patch end openings is maximum is that the radiation of antenna is terminal; With one section of the terminal opposite direction end of radiation; The edge of two anti-pode radiation patch is parallel; This section is the span line of antenna, and one section that between span line and the radiation end dehisce to change in the edge for the radiant section of antenna, at radiant section; The pattern curve at the edge of anti-pode radiation patch is meant number form, also can be straight line; At span line, across medium substrate, up and down two anti-pode radiation patch some be overlapping; Its edge is parallel; Therefore the span line of antenna can be regarded staggered dull and stereotyped transmission line as, and an end of span line links to each other with the radiant section of antenna, and the other end of span line then links to each other with microstrip feed line; The side edge of a slice anti-pode radiation patch of the conduction band of microstrip feed line and same one side; A slice anti-pode radiation patch of another side is then as the ground plane of microstrip feed line, so microstrip feed line one end links to each other with the anti-pode radiation patch from side, and the other end of microstrip feed line is the feed end of antenna; Radiation end two anti-pode radiation patch all is connected to delay line; Delay line is hair clip shape and distributes; The delay line terminal open circuit, the length long enough of delay line is to guarantee that the propagation time of pulse energy on delay line is greater than the time of delay of needed tail pulse with respect to the primary radiation pulse.Delay line constitutes additional current path.Pulse signal is imported through microstrip feed line from the antenna feed end, arrives the span line of anti-pode radiation patch then, begins towards the terminal direction of radiation, while transmit emittance to radiant section again.Terminal in radiation; Delay line be in the anti-pode Antonio Vivaldi antenna not the energy of the pulse signal of radiation additional current path is provided; Make the current path that adds on the electric current edge of carrying the residual impulse energy of anti-pode Antonio Vivaldi antenna end move; Avoided at the radiation terminal open circuit and make the residual impulse energy of radiation not return the radiating element of antenna, formed radiation again and cause tail pulse.The residual impulse energy is through getting into delay line.The direction of the most of line segment of delay line is parallel to the main radiation direction of antenna; Therefore the radiation of delay line on main radiation direction is less; And the radiation of hair clip shape adjacent segments has negative function, so the radiation of pulse signal during through delay line is very little, has only to delay line when terminal; The radiation meeting is more intense, forms tail pulse.Because the delayed action of delay line, this tail pulse has had delay in time with respect to the primary radiation pulse of antenna.And delay line does not influence the energy emission of antenna in main radiation direction in its occupied space yet.
Owing to there not being loading resistor, also less simultaneously to the adverse effect of antenna radiation efficiency.The length of the thickness of adjustment medium substrate, the dielectric constant of medium substrate material and magnetic permeability, delay line etc. can change the time of delay of tail pulse in the pulse signal.
Structurally, this delay line anti-pode Antonio Vivaldi pulse antenna is made up of anti-pode radiation patch 1, microstrip feed line 2, delay line 3 and 4 of medium substrates, and wherein anti-pode radiation patch 1, microstrip feed line 2 and delay line 3 are all on same medium substrate 4.Two anti-pode radiation patch 1 all are metal patches, lay respectively at the two sides of medium substrate 4, have only the regional overlaid of few part across 4 two radiation patch 1 of medium substrate; Two radiation patch 1 opposed edges 10 are opened and are formed flaring opening, and the maximum position of radiation patch 1 end openings is an aerial radiation terminal 5; One section of the direction end opposite with aerial radiation terminal 5; The anti-pode radiation patch edge 10 of two anti-pode radiation patch 1 is parallel; This section is the span line 6 of antenna, and one section that between antenna transmission section 6 and the aerial radiation terminal 5 dehisce to change in anti-pode radiation patch edge 10 is the radiant section 7 of antenna; In antenna transmission section 6, across medium substrate 4, up and down two anti-pode radiation patch 1 some be overlapping; Its anti-pode radiation patch edge 10 is parallel; Therefore antenna transmission section 6 can be regarded staggered dull and stereotyped transmission line as, and an end of span line links to each other with aerial radiation section 7, and the other end of span line then links to each other with microstrip feed line 2; The conduction band 8 of microstrip feed line and side edge with a slice anti-pode radiation patch 1 simultaneously; A slice anti-pode radiation patch 1 of another side is then simultaneously as being the ground plane of microstrip feed line 2, so microstrip feed line 2 one ends link to each other with anti-pode radiation patch 1 from side, and the other end of microstrip feed line 2 is exactly an antenna feed end 9; All be connected to delay line 3 at aerial radiation terminal 5; Terminal 11 open circuits of delay line; Delay line 3 is hair clip shape and distributes, and the length long enough of delay line 3 is to guarantee that the propagation time of pulse energy on delay line is greater than the time of delay of needed tail pulse with respect to the primary radiation pulse; Delay line 3 forms additional current path.
On making: the manufacturing process of this delay line anti-pode Antonio Vivaldi pulse antenna can adopt semiconductor technology, ceramic process, laser technology or printed circuit technology.Anti-pode radiation patch 1 is made up of the conductor material that conducts electricity very well, and medium substrate 4 is wanted the alap dielectric material of service wear.Delay line 3 adopts hair clip shape so that delay line 3 has enough length; Delay line 3 also can adopt other wiring form, as long as the length long enough of delay line 3; Delay line 3 is printed, etching perhaps is placed on the medium substrate 4, or is suspended in the air above the medium substrate 4; Delay line 3 hairpin-shaped long line segment directions are consistent with the antenna main radiation direction, with the radiation that reduces hair clip shape delay line 3 influence to antenna; It is smaller to guarantee that delay line 3 has enough length that line-spacing between the adjacent segment of hair clip shape delay line 3 is also wanted.
According to the above, just can realize the present invention.
Claims (6)
1. delay line anti-pode Antonio Vivaldi pulse antenna; It is characterized in that this antenna comprises anti-pode radiation patch (1), microstrip feed line (2), delay line (3) and medium substrate (4); Two anti-pode radiation patch (1) lay respectively at the two sides of medium substrate (4); The edge (10) of two anti-pode radiation patch (1) opens and forms flaring opening, and the end of opening is the radiation terminal (5) of antenna; The other direction opposite with opening is the span line (6) of antenna; The side edge of a slice anti-pode radiation patch (1) of conduction band of microstrip feed line (8) and same one side; A slice radiation patch (1) of another side then is the ground plane of microstrip feed line (2); Aerial radiation terminal (5) in two anti-pode radiation patch (1) all is connected with delay line (3), and the end of delay line (12) is an open-circuit structure.
2. delay line anti-pode Antonio Vivaldi pulse antenna according to claim 1 is characterized in that delay line (3) prints, is etched on the medium substrate (4), or is placed on the medium substrate or is suspended in the air.
3. delay line anti-pode Antonio Vivaldi pulse antenna according to claim 1 and 2 is characterized in that the position of delay line (3) is not blocked in the radiation formation of main radiation direction antenna.
4. delay line anti-pode Antonio Vivaldi pulse antenna according to claim 1 and 2; What it is characterized in that delay line (3) is shaped as back and forth reciprocally arrayed straight line or hair clip shape; Its length long enough; To guarantee the propagation time of pulse energy on delay line greater than the time of delay of needed tail pulse with respect to the primary radiation pulse, the length direction of lead is parallel with the main radiation direction of antenna.
5. delay line anti-pode Antonio Vivaldi pulse antenna according to claim 1 is characterized in that an end of the span line (6) of antenna links to each other with aerial radiation section (7), and the other end is connected with microstrip feed line (2).
6. according to claim 1 or 5 described delay line anti-pode Antonio Vivaldi pulse antennas, it is characterized in that microstrip feed line (2) is connected with anti-pode radiation patch (1) from the side, make microstrip feed line (2) can utilize the space at anti-pode radiation patch (1) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103189083A CN102361158A (en) | 2011-10-20 | 2011-10-20 | Delay line antipodal Vivaldi pulse antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103189083A CN102361158A (en) | 2011-10-20 | 2011-10-20 | Delay line antipodal Vivaldi pulse antenna |
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| CN102361158A true CN102361158A (en) | 2012-02-22 |
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| CN2011103189083A Pending CN102361158A (en) | 2011-10-20 | 2011-10-20 | Delay line antipodal Vivaldi pulse antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050086A (en) * | 2021-06-01 | 2021-06-29 | 中国南方电网有限责任公司超高压输电公司广州局 | Ground penetrating radar system, control method, device, equipment and storage medium |
Citations (2)
| 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 |
-
2011
- 2011-10-20 CN CN2011103189083A patent/CN102361158A/en active Pending
Patent Citations (2)
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 王银行: "《改进型的对跖Vivaldi天线的研究》", 《中国优秀硕士论文电子期刊网》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050086A (en) * | 2021-06-01 | 2021-06-29 | 中国南方电网有限责任公司超高压输电公司广州局 | Ground penetrating radar system, control method, device, equipment and storage medium |
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Application publication date: 20120222 |