کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5450090 | 1512855 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of single band and dual band graphene based patch antenna for terahertz region
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
A microstrip patch antenna is designed using a very thin layer of graphene as the radiating patch, which is fed by a microstrip transmission line. The graphene based patch is designed on a silicon substrate having a dielectric constant of 11.9, to radiate at a single frequency of 2.6Â THz. Further, this antenna is made to resonate at dual frequencies of 2.48Â THz and 3.35Â THz, by changing the substrate height, which is reported for the first time. Various antenna parameters such as return loss, VSWR, gain, efficiency and bandwidth are also determined for the single and dual band operation. For the single band operation, a bandwidth of 145.4Â GHz and an efficiency of 92% was achieved. For dual band operation, a maximum bandwidth of 140.5Â GHz was obtained at 3.35Â THz and an efficiency of 87.3% was obtained at the first resonant frequency of 2.48Â THz. The absorption cross section of the antenna is also analysed for various substrate heights and has maximum peaks at the corresponding resonating frequencies. The simulation has been carried out by using a full wave electromagnetic simulator based on FDTD method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 94, October 2017, Pages 126-131
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 94, October 2017, Pages 126-131
نویسندگان
Jemima Nissiyah George, M. Ganesh Madhan,