Abstract
High-gain and Low-RCS Linear Polarization F-P Resonant Cavity Antenna Based on Metasurface
Highlights
Nowadays, with the continuous development of radar, beyond-visual-range warfare has gradually become one of the main modes of modern warfare
In order to explain the mechanism of generating circular polarization, an equivalent circuit is used for analysis
It can be seen that the F-P resonant cavity antenna has an obvious radar cross section (RCS) reduction effect compared to the microstrip antenna
Summary
With the continuous development of radar, beyond-visual-range warfare has gradually become one of the main modes of modern warfare. By designing the unit structure and its arrangement, the electromagnetic (EM) wave characteristics can be modulated [1] It has significant advantages in polarization control [4], [5]. Design of antenna based on metasurfaces has become a very important direction in antenna research to improve performance of antenna, such as increasing gain and reducing RCS [6,7,8,9,10]. In [15] and [16], F-P resonant cavity antennas are designed to improve gain and reduce RCS. The metasurface and the antenna ground plate form an F-P resonant cavity, so a linear polarized F-P resonant cavity antenna with high gain and low RCS is designed. The simulation results are in good agreement with the measurement results
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