Reconfigurable polarization rotation surfaces applied to the wideband antenna radar cross section reduction

Abstract

A reconfigurable polarization rotation surface (PRS) using chessboard‐like geometry is introduced for the radar cross section (RCS) reduction of a Yagi‐Uda antenna in this article. The reconfigurable PRS reflector can be switched between low‐RCS PRS reflector and metal reflector. When the reconfigurable PRS reflector with ON‐state diodes is used in the Yagi‐Uda antenna, the antenna has a similar radiation characteristic compared with Yagi‐Uda using metal reflector. The PRS reflector can be used to achieve a low‐RCS characteristic reflector by chessboard configuration with OFF‐state diodes. Finally, the status of RCS can be switched according to the working state of diodes. The results show that the radiation performance of the Yagi‐Uda is preserved. The monostatic RCS of the Yagi‐Uda using PRS reflector with OFF‐state diodes can be reduced more than 25 dB.

Wideband radar cross section reduction using a novel design of artificial magnetic conductor structure with a triple-layer chessboard configuration

“…The best values of 10 dB RCSR with the widest simulated bandwidth are achieved as 92.06% for N = 4 ( Figure 6B). As shown in Figure 6B, the simulated normalized monostatic RCSR for normal incident versus frequency verifies the expected wideband behavior of the proposed structure calculated by Equation (2). The maximum simulated RCSR with a value of −38.28 dB is achieved at 15.8 GHz.…”

“…Nowadays, reducing the visibility of radar targets in a wide frequency band for any incoming radar frequency is one of the challenging objectives for military applications and a topic of interest for researchers. This wideband RCS reduction (RCSR), that is, reducing the electromagnetic (EM) backscattered waves from a surface, is essential in stealth technology and one of the beneficial parameters in designing antennas . Different techniques were proposed in the literature for RCSR, which are generally classified into two groups, that is, active and passive cancelation.…”

“…This wideband RCS reduction (RCSR), that is, reducing the electromagnetic (EM) backscattered waves from a surface, is essential in stealth technology and one of the beneficial parameters in designing antennas. 1,2 Different techniques were proposed in the literature for RCSR, which are generally classified into two groups, that is, active and passive cancelation. Active cancelation is mostly used in the array and sensor-based systems.…”

A novel reconfigurable FSS applied to the antenna radar cross section reduction

“…With the detection and stealth technology developing rapidly, the radar cross section (RCS) reduction has been a serious problem in military applications, and has attracted significant attentions recently. Meanwhile, more and more attention has been paid to antenna scattering since it is the main contribution to the total RCS of low‐observable platforms.…”

Design of metasurface polarization converter for near‐field application; stacked conical horn antenna for circular polarization

“…Manipulating the polarization of EM waves using metasurfaces is not limited to the quarter‐wave plates. Linear polarization selective surfaces, polarization rotating surfaces, and circular polarization selective surfaces are the examples of other applications of metasurfaces regarding polarization …”