论文名称为“A Dual-Band Shared-Aperture Antenna With Large Frequency Ratio, High Aperture Reuse Efficiency, and High Channel Isolation”。该工作基于结构复用概念，贴片天线与SIW缝隙天线阵共用辐射结构，实现了大频比共口径天线的高隔离度和高口径利用率的特性。主要完成人有张锦帆、程钰间、丁嫣然、柏春旭。论文链接：https://ieeexplore.ieee.org/document/8542690

    Abstract—The operating frequency of future communication systems will cover unlicensed millimeter-wave bands as well as existing microwave bands. Large frequency ratio antennas that can be applied to both frequency bands simultaneously and maintain the high isolation between the two channels are difficult to design. This paper presents a new design of dual-band shared-aperture antenna based on the concept of structure reuse. The antenna consists of a patch antenna working at 3.5 GHz and a 12×12 substrate integrated waveguide (SIW) slot array antenna working at 60 GHz. The frequency ratio of this shared-aperture antenna is 17. In this design, the overall structure of the SIW slot array antenna is employed as the radiator of the patch antenna. With this new scheme, the high aperture reuse efficiency can be achieved. Meanwhile, the millimeter-wave antenna based on the SIW technology has the high-pass nature to reject the lower frequency signal. A compact microstrip resonant cell that acts as a low-pass filter is connected in series on the feedline of the microwave antenna to suppress the upper frequency signal. Thus, the channel isolation between the patch and the SIW slot array antennas can be more than 130 dB at 3.5 GHz and 65 dB at 60 GHz.

    Index Terms—Dual-band antenna, shared-aperture antenna,structure reuse, large frequency ratio, millimeter-wave antenna,high aperture reuse efficiency, high isolation.