A coplanar Magic-T is proposed based on a combination of ridge and $E$ -plane groove gap waveguides for Ka-band applications. All four ports of the proposed Magic-T are coplanar. The impedance bandwidth of the proposed Magic-T is about 43% covering the whole Ka-band from 26 to 40 GHz. The Magic-T isolation is better than 40 dB in the whole bandwidth while its insertion loss is about 0.25 dB.

中文翻译：

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基于间隙波导技术的 Ka-Band Coplanar Magic-T

共面的 Magic-T 是基于脊和的组合提出的 $E$ -平面槽隙波导用于 K a-波段应用。提议的 Magic-T 的所有四个端口都共面。建议的 Magic-T 的阻抗带宽约为 43% 覆盖整个K a- 频带从 26 到 40 GHz。Magic-T 隔离在整个带宽内优于 40 dB，而其插入损耗约为 0.25 dB。