کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4953851 | 1443120 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design of low observable antenna using active hybrid-element FSS structure for stealth applications
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
A novel EM (electromagnetic) design of low observable antenna using active hybrid-element frequency selective surface (FSS) as ground plane is presented in this paper for stealth applications. The EM characteristics of active hybrid-element FSS structure are reconfigured from reflecting mode to transmitting mode and vice versa by switching ON and OFF the PIN diode at 10Â GHz. In ON state of diode (reflection mode), the FSS structure shows extremely less transmission (<â40Â dB), which corroborates its suitability for ground plane of antenna. In OFF state of diode (transmission mode), it exhibits bandpass response over the frequency range 9.3-10.7Â GHz corresponding to very less power loss (<â0.42Â dB). Further, a low observable microstrip patch antenna (MPA) is designed using proposed FSS structure as ground plane and its EM characteristics are studied using commercial software package. In ON state of diode, the FSS-based MPA is observed to perform as typical MPA and its out-of-band radar cross section (RCS) also reduces as well. In OFF state of diode, FSS-based antenna does not radiate while passes EM signal impinging on its structure in result reduces significantly in-band RCS (up to 15.8Â dBmm2) as compared to conventional MPA. Finally, a prototype active FSS-based antenna is fabricated and measured for proof-of-the concept.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 80, October 2017, Pages 137-143
Journal: AEU - International Journal of Electronics and Communications - Volume 80, October 2017, Pages 137-143
نویسندگان
Shiv Narayan, Balasubramaniyam Sangeetha, Thattanvalappil Vasu Sruthi, Vadeyanapur Shambulingappa, Raveendranath Unnikrishnan Nair,