A 10–100-GHz Double-Ridged Horn Antenna and Coax Launcher
A 10–100-GHz Double-Ridged Horn Antenna and Coax Launcher
复制标题
10–100 GHz 双脊喇叭天线和同轴发射器
DOI：
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发表时间：
2015
影响因子：
5.7
通讯作者：
T. Boyd
中科院分区：
文献类型：
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作者：
M. Morgan;T. Boyd
本文介绍了一种同轴双脊波导发射器和喇叭天线的设计、制作和测量。新颖的发射器设计采用两个对称的场探头横跨脊间隙，以最大限度地减少在过渡中的扩散电感，并实现优于15 dB的回波损耗超过10：1的带宽。孔径匹配喇叭使用半余弦过渡到线性锥形的外波导尺寸和脊宽度，和幂律缩放的间隙，以实现单调变化的截止频率，从而避免出现陷波模式谐振。它实现了一个几乎恒定的波束宽度在E-和H-平面约16.5 dB的总方向性从10-100 GHz。
The design, fabrication, and measurement of a coax to double-ridged waveguide launcher and horn antenna is presented. The novel launcher design employs two symmetric field probes across the ridge gap to minimize spreading inductance in the transition, and achieves better than 15 dB return loss over a 10:1 bandwidth. The aperture-matched horn uses a half-cosine transition into a linear taper for the outer waveguide dimensions and ridge width, and a power-law scaled gap to realize monotonically varying cutoff frequencies, thus avoiding the appearance of trapped mode resonances. It achieves a nearly constant beamwidth in both E- and H-planes for an overall directivity of about 16.5 dB from 10-100 GHz.