论文名称为“A wideband low-profile monopulse feeder based on silicon micromachining technology for W-band high-resolution system”。天线辐射部分为 2×2 宽带阶梯喇叭阵列；宽带低剖面单脉冲比较器由两种宽带低剖面波导魔 T 组成，基于MEMS）工艺进行了 W 波段宽带低剖面单脉冲集成馈源天线的实物加工。实测结果表明，该馈源的相对工作带宽可达到 21.7%，带内和波束增益范围是 13.5dBi~14.9dBi，差波束零点深度优于–28.5dB。该天线的设计方法和过程在文章中进行了详细介绍。工作主要完成人为赵凡，程钰间，寇鹏飞，姚仕森。

论文链接： https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8758956

Abstract——A wideband low-profile monopulse feeder at the W band based on the silicon micromachining technology is investigated in this letter. The proposed monopulse feeder consists of four stepped horn elements as the radiating antenna array and four Magic-Tees as the comparator network for generating SUM and DIFF beams. In order to achieve the features of wide working bandwidth and low profile, a series of special structures are employed, such as a ridged structure and a metallic reduced-height waveguide, in Magic-Tees. The total thickness of this feeder is 2.65 mm (0.80λ), which includes six metallic layers. Then, the feeder is fabricated and experimented. This feeder has a working bandwidth of 21.7% (from 80.4 to 100 GHz) for ports 1 and 2, while a working bandwidth of 15% for port 3. More than 13.5 dBi is maintained for the gain of SUM patterns, and all gain ratios of SUM and DIFF beams are within 3.2 dB in the working bandwidth. The result indicates that this kind of feeder can be an excellent candidate for the W-band high-resolution system.

Index Terms—Low-profile, monopulse feeder, silicon micromachining technology, W-band, wideband.