论文名称为“A Tri-band Shared-Aperture Antenna for 2.4/5.2-GHz Wi-Fi Application with MIMO Function and 60-GHz Wi-Gig Application with Beam-Scanning Function”。该文将这三个频段的天线置于同一辐射口径内，同时实现了具有MIMO功能的Wi-Fi应用功能和具有波束扫描功能的Wi-Gig应用功能。该天线由两个PIFA天线和两个基片集成波导(SIW)漏波天线组成。通过使用结构复用技术，应用于Wi-Fi的PIFA天线和Wi-Gig的SIW天线可以共享同一个辐射体，且无需增加额外的孔径面积，从而大大提高了辐射孔径利用率。此外，MIMO技术也应用于Wi-Fi天线的设计。仿真和测试数据表明其包络相关系数(ECC)均小于0.04，两个频段内的测试辐射效率分别为74%-95%和76%-95%。此外，Wi-Gig天线可以同时获得高增益和宽波束覆盖范围，其测量的最大增益为12.29 dBi，波束覆盖范围在57-64 GHz内为±36°。该天线的设计原则和过程在文章进行了详细介绍。工作主要完成人丁嫣然、程钰间。

论文连接：https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8884642

Abstract——This paper presents the design and the realization of a tri-band shared-aperture antenna operating at 2.4, 5.2, and 60 GHz. It puts these three bands of antennas within the same radiating aperture, and then realizes the Wi-Fi application with multiple-input multiple-output (MIMO) function and the Wi-Gig application with beam-scanning function simultaneously. It consists of two dual-band printed inverted-F antennas (PIFAs) and two substrate integrated waveguide (SIW) leaky-wave antennas. By using the structure-reused technology, the PIFA for the Wi-Fi application and the SIW antenna for the Wi-Gig application can share the same radiator without adding an extra aperture area. Thus, the ratio of the radiating aperture utilization can be improved greatly. In addition, the MIMO technology is also applied to the Wi-Fi antenna design. The envelope correlation coefficients (ECC) calculated from the simulated and measured data are all lower than 0.04. The measured radiation efficiencies are 74% to 95% and 76% to 95% within these two bands respectively. Moreover, due to the optimal layout of the whole design, the Wi-Gig antenna can obtain the high gain and the wide range of beam coverage at the same time. The measured peak gain is 12.29 dBi, and the beam coverage is ±36° from 57 to 64 GHz.

Index Terms—Frequency scan, multiple-input multiple-output (MIMO), structure reuse, tri-band shared-aperture antenna, Wi-Fi, Wi-Gig.