A 3D printed metallized Fabry–Perot cavity antenna with improved bandwidth and low side-lobe levels

A 3D printed metallized Fabry–Perot cavity antenna centred at 5.8 GHz is presented in this letter. A non-uniform grid superstrate and a choke groove are employed in the Fabry–Perot cavity antenna to improve the input bandwidth and decrease the side lobes. By using the non-uniform superstrate, the |S...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Xu, Ke, Zhou, Lin, Zhang, Bing, Chen, Xing
مؤلفون آخرون: School of Electrical and Electronic Engineering
التنسيق: مقال
اللغة:English
منشور في: 2022
الموضوعات:
الوصول للمادة أونلاين:https://hdl.handle.net/10356/162513
الوسوم: إضافة وسم
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المؤسسة: Nanyang Technological University
اللغة: English
الوصف
الملخص:A 3D printed metallized Fabry–Perot cavity antenna centred at 5.8 GHz is presented in this letter. A non-uniform grid superstrate and a choke groove are employed in the Fabry–Perot cavity antenna to improve the input bandwidth and decrease the side lobes. By using the non-uniform superstrate, the |S11| ← 10 dB bandwidth is enhanced to approximately 6.4% (from 5.65 to 6.02 GHz). The side lobes decrease to −14.03 and −21.62 dB on E and H planes by the choke groove. The designed antenna is fabricated by using a stereolithography-based 3D printing technique for verification, whose weight is only 13% of the one fabricated with copper. The measured result agrees well with the simulated one.