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A novel stealth V ivaldi antenna with low radar cross section
Author(s) -
Yu SongTao,
Gong ShuXi,
Hong Tao,
Jiang Wen
Publication year - 2015
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20856
Subject(s) - vivaldi antenna , radar cross section , antenna (radio) , antenna measurement , radar , optics , radiation pattern , physics , computer science , telecommunications , scattering
A novel stealth Vivaldi antenna with low radar cross section (RCS) is proposed in this article that covers the ultrawide band (UWB) from 2 to 12 GHz. As a special scatterer, the antenna can be responsible for the larger part of the total RCS of many military platforms. In this article, the configuration of the metal patch is modified, based on the difference of the current distribution while the antenna radiates and scatters. The monostatic radar cross section of proposed antenna is reduced in most parts of the band with θ polarized and φ polarized. Maximally 14 dBsm RCS reduction is achieved. The gain of the proposed antenna and reference antenna are in good agreement in most of the impedance bandwidth. Results are provided to demonstrate that the excellent radiation and perfect stealth performance is achieved. © 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:255–261, 2015.