ID 原文 译文
13774 实验加工并测试了该可重构圆环形OAM阵列天线, 验证了该思想和方法的正确性和有效性。 The prototype of the circular array is proposed, fabricated, and measured to validate the effectiveness and correctness of the proposed method.
13775 提出了一种全数字波束合成 (digital beam forming, DBF) 体制卫星接收共形相控阵天线设计思路。 A novel digital beam forming conformal phased array employed for satellite communication is introduced.
13776 该天线采用半球形共形阵排布方式, 阵元采用双层微带贴片天线实现宽带圆极化。 A hemispherical shaped structure is designed for arranging the antenna elements, and the dual-layer patch antenna element is adopted to achieve broadband circular polarization.
13777 在半球形的布局下, 通过判断卫星信号来波方向在球面上的投影来选择工作的阵元, 形成与来波方向一致的波束, 在全空域 (—75°75°) 的仰角内可实现增益起伏小于1.5dB的波束覆盖。 Depending on the directions of incoming waves, the elements/RF channels projected over the surface of the hemispherical array are selectively operating for beam forming. The beam coverage with gain variation within 1.5 dB are achieved in the space from -75° to 75°.
13778 后端采用射频数字一体化设计技术, 可同时形成多个波束, 实现了一个天线跟踪多颗卫星的能力。 The RF-digital integrative technique is proposed to achieve multiple beams at the same time, so the tracking of several satellites using one set of antenna is achieved.
13779 最后加工和测试了天线样机, 验证了共形半球阵的波束形成能力。 Finally, aprototype is manufactured and tested to verify the beam forming capability of the conformal hemispherical array.
13780 提出的天线设计思路有助于拓展数字波束体制在卫星通信中的应用, 对全空域多波束相控阵天线的研制具有指导意义。 The proposed antenna is helpful for extending the beam forming architecture in satellite communication, and is instructive for engineering research.
13781 提出了一种基于耶路撒冷十字单元的相位梯度表面, 并将该表面加载到缝隙阵列天线表面。 A phase-gradient metasurface realized by the compact Jerusalem cross elements is proposed in this paper, which is loaded on the surface of the slot array antenna.
13782 通过利用该表面将空间波 (propagating wave, PW) 转化为表面波 (surface wave, SW) 及奇异反射特性, 天线可以在很宽的频带内实现显著的雷达散射截面 (radar cross section reduction, RCS) 减缩。 By using its characteristics of converting propagating wave (PW) into surface wave (SW) and anomalous reflection, a remarkable monostatic radar cross section reduction (RCSR) can be obtained.
13783 与参考天线相比, 设计天线在TE和TM两种极化波垂直和斜入射状态下均在618GHz频带范围内实现了单站RCS减缩, 并且在9.5GHz处的最大减缩量达到20dB。 Compared with the reference antenna, the monostatic RCS of the proposed antenna is reduced over a frequency range of 6-18 GHz for both normal and oblique incident waves with TE and TM polarizations, and the RCS of the proposed antenna can be reduced as much as 20 dB at around 9.5 GHz.