Purpose

The purpose of this study is to design a radio altimeter antenna whose production process is facilitated and can work with multiple-input multiple-output (MIMO) properties to provide space gain on the aircraft.

Design/methodology/approach

To create an easy-to-produce MIMO, a two-storied structure consisting of a reflector and a top antenna was designed. The dimensions of the reflector were prevented to get smaller to supply easy production. The unit cell nearly with the same dimensions of a lower frequency was protected through the original cell design. The co-planar structure with the use of a via connection was modified and a structure was achieved with no need to via for easy production, too. Finally, the antennas were placed side by side and the distance between them was optimized to achieve a MIMO operation.

Findings

As a result, an easy-to-produce, compact and successful radio altimeter antenna was obtained with high antenna parameters such as 10.14 dBi gain and 10.55 dBi directivity, and the conical pattern along with proper MIMO features, through original reflector surface and top antenna system.

Originality/value

Since radio altimeter antennas require high radiation properties, the microstrip antenna structure is generally used in literature. This paper contributes by presenting the radio altimeter application with antenna-reflective structure participation. The technical solutions were developed during the design, focusing on an easy manufacturing process for both the reflective surface and the upper antenna. Also, the combination of International Telecommunication Union’s recommended features that require high antenna properties was achieved, which is challenging to reach. In addition, by operating the antenna as a successful MIMO, two goals of easy production and space gain on aircraft have been attained at the same time.

中文翻译：

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一种易于生产的基于 HIS 的飞机 MIMO 无线电高度计天线设计

目的

本研究的目的是设计一种无线电高度计天线，其生产过程方便，并且可以与多输入多输出（MIMO）特性配合使用，为飞机提供空间增益。

设计/方法论/途径

为了创建易于生产的 MIMO，设计了由反射器和顶部天线组成的两层结构。防止反射器的尺寸变小以方便生产。通过原始的电池设计，保护了频率较低、尺寸几乎相同的单元电池。修改了使用过孔连接的共面结构，并且实现了无需过孔的结构，以便于生产。最后，将天线并排放置并优化它们之间的距离以实现 MIMO 操作。

发现

结果，通过原始反射面和顶部天线，获得了易于生产、紧凑且成功的无线电高度计天线，其具有高天线参数，例如 10.14 dBi 增益和 10.55 dBi 方向性，以及圆锥形图案和适当的 MIMO 功能。系统。

原创性/价值

由于无线电高度计天线对辐射性能要求较高，文献中一般采用微带天线结构。本文通过介绍天线反射结构参与的无线电高度计应用来做出贡献。技术解决方案是在设计过程中制定的，重点关注反射面和上部天线的简单制造工艺。此外，还实现了国际电信联盟推荐的需要高天线性能的功能的组合，这是难以达到的。此外，通过将天线用作成功的MIMO，同时实现了易于生产和飞机上空间增益的两个目标。