کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4953984 | 1443122 | 2017 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A wideband high gain dielectric resonator antenna for RF energy harvesting application
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A wideband high gain dielectric resonator antenna for RF energy harvesting application A wideband high gain dielectric resonator antenna for RF energy harvesting application](/preview/png/4953984.png)
چکیده انگلیسی
A novel high gain and broadband hybrid dielectric resonator antenna (DRA) is designed and experimentally validated. To obtain the wide impedance bandwidth, the proposed antenna geometry combines the dielectric resonator antenna and an underlying slot with a narrow rectangular notch, which effectively broadens the impedance bandwidth by merging the resonances of the slot and DRA. An inverted T-shaped feed line is used to excite both antennas, simultaneously. It supports amalgamation of different resonant modes of the both, DRA and slot antenna. The measured results show that the proposed antenna offers an impedance bandwidth of 120% from 1.67 to 6.7Â GHz. The antenna gain is next enhanced by a reflector placed below the antenna at an optimum distance. On engineering the height and dimension of this reflector the antenna gain is improved from 2.2Â dBi to 8.7Â dBi at 1.7Â GHz. Finally, antenna operation is attested experimentally with a rectifier circuit in the frequency range of 1.8-3.6Â GHz, where various strong radio signals are freely available for RF energy harvesting. The measured maximum efficiency of the rectifier and rectenna circuit were found to be 74.4% and 61.4%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 78, August 2017, Pages 24-31
Journal: AEU - International Journal of Electronics and Communications - Volume 78, August 2017, Pages 24-31
نویسندگان
Sachin Agrawal, Ravi Dutt Gupta, Manoj Singh Parihar, Praveen Neminath Kondekar,