Tree-form delay line bow tie pulse antenna

Abstract

The invention discloses a tree-form delay line bow tie pulse antenna, in particular to a pulse antenna with delay lines. The antenna is composed of bow-tie radiation patches (1), medium substrates (2) and tree-form delay lines (3), wherein the radiation patches and the tree-form delay lines (3) are respectively positioned on two sides of the medium substrates (2); one approaching ends of the two radiation patches are antenna feeding ends (4); the other ends of the two radiation patches are the radiation tail ends (5) of the antenna; the delay lines (3) are positioned on the back zones of the medium substrates (2) of the two radiation patches (1); the delay lines (3) are in the tree form; the branches of the delay lines (3) extend after being gathered on one collecting point (6); a plurality of groups of branches can be gathered to the other gathering point (6); then, the branches extend to end in an open circuit mode or be gathered with other delay lines (3); and each branch tail end of the delay lines (3) is connected with the radiation tail ends of the antenna via metalizing through holes (7). The antenna can delay trailing pulse appearing time in a pulse radiation waveform.

Description

technical field [0001] The invention relates to a pulse antenna, in particular to a tree-shaped delay line bow-tie pulse antenna, which belongs 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 process thereafter, thus forming a tailing pulse. 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 the tailing pulse in the radiation ...

AI Technical Summary

Problems solved by technology

[0003] technical problem: The object of the present invention is to propose a tree-shaped delay line bow-tie pulse antenna, which can effectively delay the appearance time of the trailing pulse in the radiation pulse waveform, avoid the interference of the trailing pulse to the target signal, and affect the radiation efficiency of the antenna. less adverse effects

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