论文名称为“A Wideband Low-Profile Monopulse Feeder Based on Silicon Micromachining Technology for W-Band High-Resolution System”。该工作充分利用硅基MEMS工艺的工艺特点，实现了基于多层结构的宽带低剖面单脉冲馈源设计。馈源天线采用多层喇叭天线作为辐射载体，馈电结构由波导魔T以及波导E面缝隙耦合结构组成，并采用宽带匹配结构实现辐射单元与馈电网络之间的连接。该天线突破了传统工艺的限制，实现了天线剖面的极大压缩，解决的宽带单脉冲天线面临的剖面较高的问题，为宽带单脉冲馈源天线在未来高频段雷达探测等领域中的应用奠定了基础。工作主要完成人赵凡、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 Wband 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.