用FIT方法设计的宽频带双脊圆喇叭天线
Double-Ridged Broadbard Circinal Hom Antenna Design Based on FIT
摘要 采用有限积分技术(FIT)设计了一种1GHz~6GHz的宽频带双脊圆喇叭天线。调整天线各部分的结构尺寸,使天线的驻波比达到最小值,计算了它的增益﹑方向图等天线参数,并将它们和广泛用于电磁兼容测试的宽频带双脊角锥喇叭天线的电参数进行了对照,结果表明该天线比双脊角锥喇叭天线在吸波材料拱形法测试当中有更大的优越性。对制作出的天线的电参数实测,结果和计算结果基本吻合。
关键词 双脊喇叭天线 有限积分技术 电磁兼容 拱形法 吸波材料
Abstract Finite integration technique was applied to design a double-ridged broadband
circinal horn antenna. Its usable frequence range was 1GHz~6GHz .The antenna
parameters such as VSWR, gain were calculated and the dimension of the horn antenna
was optimized. The electrical parameters of pyramidal horn antenna which was widely
used in EMC test were compared with the circinal horn antenna and the result was
that the latter was better. Finally we manufactured the horn and measured its
electrical parameters. The measured results agreed well with the calculated ones.
Key words double-ridged horn antenna,finite integration technique (FIT),EMC,arch test
method,RF absorber
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