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Dielectric substrate integrated single pulse antenna

A technology for dielectric substrates and antennas, applied to antennas, slot antennas, antenna arrays, etc., can solve the problems that the manufacturing accuracy of metal waveguides cannot guarantee the normal operation of finished antennas, the volume of metal waveguides is large, and the cost of antennas is expensive. The effect of high single pulse gain and low processing cost

Inactive Publication Date: 2009-05-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal waveguide used in the traditional monopulse antenna is large in size, heavy in weight, and difficult to move; its material cost is high, its processing cost is expensive, and the associated mechanical cost increases due to its difficulty in moving; what is more inconvenient is , the manufacturing accuracy of the metal waveguide cannot guarantee the normal operation of the finished antenna, so after the processing is completed, an adjustment process is required to correct the error, which causes difficulties in mass production
These drawbacks make such antennas extremely expensive

Method used

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  • Dielectric substrate integrated single pulse antenna
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  • Dielectric substrate integrated single pulse antenna

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Embodiment 1

[0019] A dielectric substrate integrated monopulse antenna for electronic equipment such as wireless communication, radar, electronic navigation and electronic countermeasures, characterized in that it includes a dielectric substrate plate 1, wherein the back of the dielectric substrate plate 1 is provided with a complete metal foil 3. A slot array 2, a microstrip power divider 4 and a summator 5 are etched on the front metal foil, the slot array 2 is connected to one end of the microstrip power divider 4, and the other end of the microstrip power divider 4 is connected to Connected with the differential device 5, an intercommunication through hole 6 is provided in the dielectric substrate plate 1, and the through hole 6 is a metallized through hole. The metallized through holes are arranged in a "U" shape, and the metallization in a "U" shape arrangement The through hole surrounds the slot array unit therein.

Embodiment 2

[0021] The invention utilizes the microstrip ring 3dB electric bridge to realize the sum and difference beam required by the monopulse antenna. make Figure 5 Ports 27 and 28 are connected to receiving antennas. The received signals are superimposed at port 25 to form a sum beam, and at port 26 to subtract to form a difference beam. The microstrip ring bridge and the substrate-integrated waveguide slot array antenna together form the entire antenna feed system, which can be integrated into a PCB substrate for implementation. The designed working frequency of the monopulse antenna is in the X-band, and the center frequency is 10GHz. Using the dielectric constant ε r =2.4 dielectric substrate, the thickness of the substrate is 1.5mm, and the dielectric loss tangent of the substrate is tanδ=0.002. Let the width of the lead-out arm be W 1 =2.4mm, then the characteristic impedance Z of the lead-out arm c =73.94Ω. The characteristic impedance of the ring strip is that of the o...

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Abstract

This invention discloses a dielectric substrate integrated single pulse antenna including a dielectric substrate board set with metallic foils at the positive and negative sides, a slit array, a microstrip power divider and a combiner are etched on one side of the foil, the slit array unit is connected with one end of the microstrip power divider, the other end of which is connected with the combiner, interconnected metallized through holes are set on the substrate board and the foil arrayed in U shape enclosing the slit array.

Description

technical field [0001] The invention relates to an antenna which can be used in antennas and feed modules of a communication system, in particular to a dielectric substrate integrated monopulse antenna. Background technique [0002] The traditional realization method of monopulse antenna is to use two sets of metallic waveguide slot arrays interleaved with each other, one set is excited by even mode, and the other is excited by odd mode. The two groups of waveguide slot arrays have the same amplitude distribution, and their respective contributions to the far-field scattering field are the same. Since the two sets of excitations are orthogonal to each other, the single-pulse gain generated by them is not affected and remains at a high level. Moreover, since the slot configurations of the two sets of arrays are basically the same, the wave propagation speed and the slot spacing in the two sets of waveguides are basically the same, so that the substantially same sum-differenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q3/30H01Q13/08H01Q13/10H01Q21/00
Inventor 颜力洪伟吴柯陈继新华光
Owner SOUTHEAST UNIV
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