期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 65, 期 2, 页码 567-575出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2016.2637860
关键词
Domain decomposition method; equivalent circuit; finite-element method; radar cross section (RCS) reduction; self-complementary connected array antenna; ultrawideband antenna arrays
资金
- French Ministry of Defense through the Astrid Program of the French National Research Agency
- GENCI-CINES [c2016107558]
In this paper, a wideband dual polarized self-complementary connected array antenna with low radar cross section (RCS) under normal and oblique incidence is presented. First, an analytical model of the multilayer structure is proposed in order to obtain a fast and reliable predimensioning tool providing an optimized design of the infinite array. The accuracy of this model is demonstrated thanks to comparative simulations with a full wave analysis software. RCS reduction compared to a perfectly conducting flat plate of at least 10 dB has been obtained over an ultrawide bandwidth of nearly 7:1 at normal incidence and 5:1 (3.8 to 19 GHz) at 60 degrees in both polarizations. These performances are confirmed by finite element tearing and interconnecting computations of finite arrays of different sizes. Finally, the realization of a 28 x 28 cell prototype and measurement results are detailed.
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