In this paper, a multiband symmetrical Jerusalem cross-shaped metasurface absorber is designed, fabricated, and measured. The upper layer consists of Jerusalem cross metasurface placed over FR-4 substrate to achieve perfect absorption. The unit cell of the proposed absorber is symmetrical and periodic in the horizontal and vertical axis. The Jerusalem cross absorber gives good impedance response at five different frequencies in the X-band region. The proposed absorber gives absorptivity of 97.3%, 97%, 96.1%, 98.8%, and 97.4% at 8.82 GHz, 9 GHz, 9.25 GHz, 9.43 GHz, and 10.1 GHz. In transverse electric and magnetic field response, the absorptivity is angle insensitive up to 600. The change in absorption spectra for the proposed absorber with a change in different physical parameters, electric field distribution is presented. The measured results of the fabricated absorber are similar to the numerically investigated results. The proposed absorber can be applicable in X-band satellite and radar applications.

在本文中，设计、制造和测量了多波段对称耶路撒冷十字形超表面吸收器。上层由放置在 FR-4 基板上的耶路撒冷十字超表面组成，以实现完美的吸收。所提出的吸收器的晶胞在水平和垂直轴上是对称和周期性的。耶路撒冷交叉吸收器在 X 波段区域的五个不同频率下提供了良好的阻抗响应。建议的吸收器在 8.82 GHz、9 GHz、9.25 GHz、9.43 GHz 和 10.1 GHz 下的吸收率为 97.3%、97%、96.1%、98.8% 和 97.4%。在横向电场和磁场响应中，吸收率对角度不敏感，最高可达 600。所提出的吸收体的吸收光谱随不同物理参数的变化而变化，呈现了电场分布。制造的吸收器的测量结果与数值研究结果相似。所提议的吸收器可适用于 X 波段卫星和雷达应用。