| The flat of complete planar sloted-waveguide antennas is small, an the structure of it is compact, it can realizing low side-lobe an high gain. The complete planar sloted-wageguide antennas are used microwave communication system and radar. But it is very difficult to analysising. Wo always designed the antennas,then tested them. If there are not correct, wo would waste many meterrial resources, manpower.In this article, we use the theory of scattering parameters and equivalent transmission line, and we design the sloted-waveguide array of three-layer-fed structure. Then we obtained the bandwidth of sixty slot cells. Finally, we obtaining the pattern of vertical and horizontal. We always obtain the gain and the standing-Wave-Ratio(SWR)In addition, this article calculated the characteristic of the coupling slot,radiating slot, and exciting slot.They had a high correlation with the dimension. Such as their displacement, solt length,slot width, even the thickness. |
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