CN1330052C - Delay line loaded impulse antenna - Google Patents
Delay line loaded impulse antenna Download PDFInfo
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- CN1330052C CN1330052C CNB2005100405155A CN200510040515A CN1330052C CN 1330052 C CN1330052 C CN 1330052C CN B2005100405155 A CNB2005100405155 A CN B2005100405155A CN 200510040515 A CN200510040515 A CN 200510040515A CN 1330052 C CN1330052 C CN 1330052C
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- antenna
- delay line
- pulse
- loading
- loading resistor
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Abstract
The present invention relates to a delay line resistor loading pulse antenna, particularly to a resistor loading pulse antenna. The antenna is composed of a pulse antenna (1), a delay line (2) and loading resistors (3), wherein the delay line (2) is connected with the tail end (11) of the pulse antenna; the loading resistors (3) are distributed on the delay line (2). most of residual pulse current at tail end (12) of the antenna flows to the delay line (2), and the loading resistors (3) on the delay line absorb residual pulse energy. Because the loading resistors (3) on the delay line (2) dose not absorb pulse energy which is to be radiated from the antenna, the loading resistors has little adverse influence on the radiation efficiency of the pulse antenna.
Description
Technical field
Patent of the present invention relates to a kind of pulse antenna, especially loaded impulse antenna.
Background technology
During pulse antenna pulses of radiation signal, if pulse current flow to from antenna input antenna end during this period of time in, pulse antenna can not all radiate electromagnetic energy, then just has remaining pulse current in antenna end.The residual impulse electric current can return along original path in antenna, continues the electromagnetic radiation energy in process after this, just has tail pulse like this in the pulses of radiation waveform of antenna.These tail pulses can be overlapping in time with the signal from target, forms the interference to echo signal, therefore will take measures to reduce the amplitude of tail pulse in these waveforms usually.At present, known pulse antenna is to adopt loading method to reduce the amplitude of tail pulse mostly.Wherein the resistance loading is a kind of loading method of using always, and resistance can absorb the residual impulse energy that returns from antenna end, thereby has reduced the amplitude of tail pulse.But since resistance at the input of antenna between the end, loading resistor not only absorbs remaining pulse energy in the antenna, and flow to from antenna input the antenna end process at pulse current, loading resistor also to absorb in the antenna will radiation pulse energy.Therefore the radiation efficiency of loaded impulse antenna is lower.
Summary of the invention
Technical problem: the objective of the invention is to propose a kind of delay line loaded impulse antenna, this antenna loading resistor only absorbs remaining pulse energy in the antenna, do not absorb in the antenna will radiation pulse energy, reduced the adverse effect that resistance loads the paired pulses antenna radiation efficiency.
Technical scheme: delay line loaded impulse antenna of the present invention is made up of pulse antenna, delay line and loading resistor, wherein; Pulse antenna comprises the input of pulse antenna and the end of pulse antenna, and pulse signal is at first propagated or radiation to the end of pulse antenna from the input of pulse antenna, is connected with delay line at the end of pulse antenna; Delay line in its space that occupies not the energy emission on the paired pulses antenna main radiation direction form and stop; Delay line gives in the pulse antenna not that the energy of the pulse signal of radiation provides additional current path, moves along additional current path at the remaining pulse current of pulse antenna end; Loading resistor is distributed on the delay line, and the end of delay line has just reduced the amplitude of tail pulse in the pulse signal for open circuit, loading resistor consumes remaining pulse energy on the delay line.Loading resistor is the resistance of lumped parameter form or the resistance of distributed constant form.Change the amplitude that the total resistance sum of all loading resistors on the delay line just changes tail pulse in the pulse signal that delay line produces, the resistance that changes loading resistor also changes the amplitude of tail pulse in the pulse signal that delay line produces along the distribution mode of delay line.The end of pulse antenna is connected with delay line by the mode of direct mode or electromagnetic coupled.Delay line sets off on substrate base, or is suspended in the air.The form of pulse antenna is a line of rabbet joint horn antenna, or necktie knot antenna, or the plate speaker antenna, or conical antenna, or dipole antenna, or the simple oscialltor antenna.
Beneficial effect: the invention has the beneficial effects as follows that both used loading resistor to reduce the amplitude of tail pulse in the aerial radiation waveform, the adverse effect of loading resistor paired pulses antenna radiation efficiency is smaller simultaneously.
Because delay line provides an additional via for the remaining pulse current that arrives antenna end, make and have only in the residual impulse electric current sub-fraction to return the tail pulse that forms in the waveform along original path, the major part of residual impulse electric current flows through delay line.The amplitude of tail pulse is very little like this.On the other hand, add on delay line and carry resistance lumped parameter or distributed constant, these loading resistors can be absorbed in the energy of residual impulse electric current on the delay line to reduce the amplitude of other tail pulse in the radiation waveform.Because loading resistor only absorbs remaining pulse energy in the antenna, do not absorb in the antenna will radiation pulse energy, therefore compare with common resistance loading method, the adverse effect of loading resistor paired pulses antenna radiation efficiency is little among the present invention.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The technical solution adopted in the present invention is: delay line loaded impulse antenna comprises pulse antenna, one or several delay line that links to each other with pulse antenna and is distributed in loading resistor on the delay line.The form of pulse antenna can be a line of rabbet joint horn antenna, Bow-Tie (necktie knot) antenna, plate speaker antenna, conical antenna, dipole antenna and simple oscialltor antenna or the like.End at pulse antenna is connected with delay line, and delay line in its space that occupies not the energy emission on the paired pulses antenna main radiation direction form and stop.The end of delay line is open circuit.The end of pulse antenna is connected with delay line by the mode of direct mode or electromagnetic coupled.Loading resistor has two kinds of forms to realize that a kind of is the resistance of distributed constant form, and delay line itself is a lossy transmission, and loading resistor is provided by the loss of transmission line; Another kind is the resistance of lumped parameter form, and loading resistor is connected on the delay line successively.
Structurally, this delay line loaded impulse antenna is made up of pulse antenna 1, delay line 2 and loading resistor 3.End 12 at pulse antenna 1 is connected with delay line 2, delay line in its space that occupies not the energy emission on the paired pulses antenna main radiation direction form and stop that the end 13 of delay line is open circuit.The end 12 of pulse antenna 1 is connected with delay line 2 by the mode of direct mode or electromagnetic coupled.The form of pulse antenna 1 is the tapered slot antenna of dehiscing, or necktie knot antenna, or the plate speaker antenna, or conical antenna, or dipole antenna, or the simple oscialltor antenna; Loading resistor 3 is distributed on the delay line 2.
On making: delay line loaded impulse antenna is made of pulse antenna 1, delay line 2 and loading resistor 3.Pulse antenna 1 is produced on the substrate base 4, and the one side of substrate base is the line of rabbet joint that two metal coverings 5 constitute, and the spacing in slit 6 is changed from small to big and formed the opening 7 of pulse antenna between these two metal coverings.Pulse antenna 1 at input 8 by microstrip line 9 feeds, the metal covering 5 of substrate base 4 also is the ground plane of microstrip line 9 simultaneously, the another side of substrate base 4 is conduction bands 10 of microstrip line 9, conduction band 10 strides across the slit 6 of the substrate base 4 another side line of rabbet joint, end at conduction band 10 has a short circuit metal pin 11, and short circuit metal pin 11 couples together the metal covering 5 of conduction band 10 with substrate base 4 another sides.Two ends 12 at pulse antenna 1 are connected with two delay lines 2, have 32 loading resistors 3 on the delay line, and the end 13 of delay line is open circuit.According to the above, just can realize the present invention.
Claims (6)
1, a kind of delay line loaded impulse antenna is characterized in that this delay line loaded impulse antenna is made up of pulse antenna (1), delay line (2) and loading resistor (3), wherein; Pulse antenna (1) comprises the input (8) of pulse antenna and the end (12) of pulse antenna, and the end (12) in pulse antenna (1) is connected with delay line (2); Delay line (2) in its space that occupies not the energy emission on paired pulses antenna (1) main radiation direction form and stop; Loading resistor (3) is distributed on the delay line (2), and the end of delay line is open circuit.
2, delay line loaded impulse antenna according to claim 1, the end (12) that it is characterized in that pulse antenna (1) is connected with delay line (2) by the mode of direct mode or electromagnetic coupled.
3, delay line loaded impulse antenna according to claim 1 and 2 is characterized in that delay line (2) sets off on substrate base, or is suspended in the air.
4, delay line loaded impulse antenna according to claim 1 is characterized in that loading resistor (3) is the resistance of lumped parameter form or the resistance of distributed constant form.
5, delay line loaded impulse antenna according to claim 1 is characterized in that utilizing the amplitude of the resistance of loading resistor (3) along tail pulse in the pulse signal of the distribution mode decision delay line generation of delay line (2).
6, delay line loaded impulse antenna according to claim 1, the form that it is characterized in that pulse antenna (1) is a line of rabbet joint horn antenna, or necktie knot antenna, or the plate speaker antenna, or conical antenna, or dipole antenna, or the simple oscialltor antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100405155A CN1330052C (en) | 2005-06-15 | 2005-06-15 | Delay line loaded impulse antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100405155A CN1330052C (en) | 2005-06-15 | 2005-06-15 | Delay line loaded impulse antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1697257A CN1697257A (en) | 2005-11-16 |
| CN1330052C true CN1330052C (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100405155A Expired - Fee Related CN1330052C (en) | 2005-06-15 | 2005-06-15 | Delay line loaded impulse antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN1330052C (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270779B (en) * | 2011-07-27 | 2013-07-10 | 东南大学 | Sub-millimetre wave tie pulse loading antenna |
| CN102361160B (en) * | 2011-09-08 | 2014-10-29 | 东南大学 | Pulse antenna for communicating delay lines loaded resistors and gradient slot line |
| CN102361162B (en) * | 2011-09-08 | 2013-11-27 | 东南大学 | Pulse antenna for communicating delay lines loaded with resistors and gradient slot line by tree access |
| CN102361165B (en) * | 2011-09-09 | 2014-08-13 | 东南大学 | Delay line resistor loading gradual change grooved wire pulse antenna |
| CN102361171A (en) * | 2011-10-10 | 2012-02-22 | 中国石油化工股份有限公司 | Radar well logging antenna of oil field |
| CN102361159B (en) * | 2011-10-20 | 2014-01-01 | 东南大学 | Tree access non-coplanar delay line resistance loading antipodal Vivaldi pulse antenna |
| CN102509871A (en) * | 2011-10-20 | 2012-06-20 | 东南大学 | Micro-strip side feed anti-pode Vivaldi antenna |
| CN102361169B (en) * | 2011-10-20 | 2014-08-13 | 东南大学 | Non-coplanar delay line resistance loading antipodal Vivaldi pulse antenna |
| CN102394355B (en) * | 2011-10-20 | 2015-01-28 | 东南大学 | Antipodal Vivaldi pulse antenna loaded with delay line and resistor |
| CN102361168B (en) * | 2011-10-20 | 2014-08-13 | 东南大学 | Non-coplanar delay line antipodal Vivaldi pulse antenna |
| CN102509862B (en) * | 2011-11-01 | 2014-10-29 | 东南大学 | Resistance loading bow-tie pulse antenna with delay lines |
| CN102509864B (en) * | 2011-11-01 | 2014-01-01 | 东南大学 | Resistor loading bowtie pulse antenna communicated with tree-form delay lines |
| CN102509863B (en) * | 2011-11-01 | 2014-01-01 | 东南大学 | Bowtie pulse antenna with resistively-loaded tree delay lines |
| CN102354799B (en) * | 2011-11-01 | 2014-05-07 | 东南大学 | Resistance loading bow-tie pulse antenna for connected delay line |
| CN102709683B (en) * | 2011-12-26 | 2013-12-04 | 南京邮电大学 | Pulse antenna with accessing delay line and gradual-change slot line in tree-form |
| CN102420349B (en) * | 2011-12-26 | 2013-12-04 | 南京邮电大学 | Tree access delay line resistor loading tapered slot line pulse antenna |
| CN105846088A (en) * | 2016-04-08 | 2016-08-10 | 南京邮电大学 | Dual-band capacitor loading stepped-impedance slot antenna |
| CN105846062A (en) * | 2016-04-08 | 2016-08-10 | 南京邮电大学 | Dual-frequency gate slot ground capacitor loading stepped-impedance slot antenna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053712A (en) * | 1988-11-11 | 1991-10-01 | Asea Brown Boveri Ltd. | Method for comparing the quality of rf absorbers |
| CN2192082Y (en) * | 1994-05-03 | 1995-03-15 | 孙振亭 | Shortwave unloading broad-band antenna |
| US5568159A (en) * | 1994-05-12 | 1996-10-22 | Mcdonnell Douglas Corporation | Flared notch slot antenna |
| JPH09199930A (en) * | 1996-01-18 | 1997-07-31 | Saitou Kiyouchiyou Tokushu Kiki Kk | Antenna for digital signal |
| CN2511013Y (en) * | 2001-08-27 | 2002-09-11 | 耀登科技股份有限公司 | Concealed multi-frequency antenna for mobile phones |
| JP2004146978A (en) * | 2002-10-23 | 2004-05-20 | Sony Corp | Unbalanced antenna |
-
2005
- 2005-06-15 CN CNB2005100405155A patent/CN1330052C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053712A (en) * | 1988-11-11 | 1991-10-01 | Asea Brown Boveri Ltd. | Method for comparing the quality of rf absorbers |
| CN2192082Y (en) * | 1994-05-03 | 1995-03-15 | 孙振亭 | Shortwave unloading broad-band antenna |
| US5568159A (en) * | 1994-05-12 | 1996-10-22 | Mcdonnell Douglas Corporation | Flared notch slot antenna |
| JPH09199930A (en) * | 1996-01-18 | 1997-07-31 | Saitou Kiyouchiyou Tokushu Kiki Kk | Antenna for digital signal |
| CN2511013Y (en) * | 2001-08-27 | 2002-09-11 | 耀登科技股份有限公司 | Concealed multi-frequency antenna for mobile phones |
| JP2004146978A (en) * | 2002-10-23 | 2004-05-20 | Sony Corp | Unbalanced antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1697257A (en) | 2005-11-16 |
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