Delay Line Tapered Slot Line Impulse Antenna
A technology of gradient slot line and pulse antenna is applied in the field of pulse antenna manufacturing and delay line gradient slot line pulse antenna.
Inactive Publication Date: 2014-10-29
SOUTHEAST UNIV
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Problems solved by technology
The main problem with these loading methods is that the loaded resistance will cause a reduction in the radiation efficiency of the pulsed antenna
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[0015] The present invention will be further described below in conjunction with drawings and embodiments.
[0016] The technical solution adopted in the present invention is: the delay line tapered slot line pulse antenna is composed of a pair of tapered slot line radiation patches, a dielectric substrate, a microstrip feeder line and a delay line; wherein the tapered slot line radiation patch is located on one side of the dielectric substrate, The conduction band and delay line of the microstrip feeder are located on the other side of the dielectric substrate. The two gradient groove radiation patches are located on the same surface of the dielectric substrate, and the edge of the gap between the two gradient groove radiation patches is opened to form a trumpet-shaped opening. The position of the largest opening of the radiation patch is also the radiation end of the antenna. . At the end of the other direction of the slot opening, the edges of the gap between the two gradi...
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The invention relates to a delay line tapered slot pulse antenna, especially to a delay line-loaded pulse antenna. The antenna is composed of tapered slot radiation patches (1), a medium substrate (2), a microstrip feed line (3) and a plurality of delay lines (4). Edges of a slit between the two radiation patches (1) are open to form a horn-shaped opening; radiation ends (6) of the antenna are at positions where openings at the ends of the radiation patches (1) are maximum; the other end of the slit opening is a slot line (7) open circuit end; besides, one end of the microstrip feed line (3) is a feed terminal (8) and the other end of the microstrip feed line (3) is a transition section (9) of from the microstrip to the slot line; and delay lines (4) are at substrate (2) back areas of the two radiation patches (1); and one end of each the delay line (4) in each the area is connected with each the radiation end (6) through metalized through holes (11) and the other end of each the delay line (4) is in an open circuit. According to the invention, the antenna enables occurrence time of a tailing pulse to be delayed; an interference of the tailing pulse on a target signal can be avoided; and an adverse effect on an antenna radiation efficiency can be reduced.
Description
technical field [0001] The invention relates to a pulse antenna, in particular to a delay line tapered slot line pulse antenna, belonging to the technical field of pulse antenna manufacture. Background technique [0002] When the pulse antenna radiates a pulse signal, during the period when the pulse current flows from the antenna input terminal to the antenna end, if the pulse antenna cannot radiate all the electromagnetic energy, there will be remaining unradiated pulse current at the antenna radiation end. The remaining pulse current will return along the original path in the antenna, and continue to radiate electromagnetic energy in the subsequent process, so a tailing pulse will be generated in the antenna radiation waveform. When the pulse antenna is used in ground penetrating radar, these tailing pulses overlap with the signal from the target in the time domain, thereby causing interference to the target signal, so measures are usually taken to reduce the influence of...
Claims
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IPC IPC(8): H01Q1/38
Inventor 李顺礼殷晓星赵洪新杨梅
Owner SOUTHEAST UNIV