Calculating Array Patterns Using an Active Element Pattern Method with Ground Edge Effects

Journal of the Korean Institute of Electromagnetic Engineering and Science

Sun-Gyu Lee¹  Jeong-Hae Lee¹ 

[1] School of Electronic and Electrical Engineering, Hongik University, Seoul, Korea;

关键词: Active Element Pattern;    Array Antenna;    Array Pattern;    Beam Forming;    Beam Steering;    Edge Diffraction;    Finite Ground Plane;    Mutual Coupling;    Patch Antenna;   

DOI  :  10.26866/jees.2018.18.3.175

来源: DOAJ

【 摘 要 】

The array patterns of a patch array antenna were calculated using an active element pattern (AEP) method that considers ground edge effects. The classical equivalent radiation model of the patch antenna, which is characterized by two radiating slots, was adopted, and the AEPs that include mutual coupling were precisely calculated using full-wave simulated S-parameters. To improve the accuracy of the calculation, the edge diffraction of a ground plane was incorporated into AEP using the uniform geometrical theory of diffraction. The array patterns were then calculated on the basis of the computed AEPs. The array patterns obtained through the conventional AEP approach and the AEP method that takes ground edge effects into account were compared with the findings derived through full-wave simulations conducted using a High Frequency Structure Simulator (HFSS) and FEKO software. Results showed that the array patterns calculated using the proposed AEP method are more accurate than those derived using the conventional AEP technique, especially under a small number of array elements or under increased steering angles.

【 授权许可】

Unknown