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本文叙述一种波束宽度为4.5°×4.5°的3OGHz 隙缝阵列天线.该天线采用一面具有隙缝的大型扁平谐振腔.波导阵列线源向开缝谐振器发射 TE_(10)波激励谐振器.利用阵列可获得最大方向性,其增益为30dBi,这相当于孔径效率为65%.只要保持开缝平板的平直度,振荡横就不会发生变化.
In this paper, a 3OGHz slot array antenna with a beam width of 4.5 ° × 4.5 ° is described. The antenna uses a large flat resonator with a slot on one side. The waveguide array line source emits a TE 10 wave excitation resonator to a slotted resonator. The array achieves maximum directivity with a gain of 30 dBi, which corresponds to an aperture efficiency of 65%. The horizontal oscillation does not change as long as the flatness of the slotted plate is maintained.