Abstract

A compact dual-band navigation antenna module, consisting of a planar patch antenna element and a two-channel low-noise amplifier with input protection elements, is proposed. The two-channel scheme for constructing the low-noise amplifier is implemented with the use of two duplex filters, which are calculated by the method of oriented graphs. The patch antenna element is realized in a topology that allows it to be excited at the fundamental resonant mode TM₁₀ both in the lower (L2) and upper (L1) frequency bands, which ensures the identity of the radiation pattern shapes in both frequency bands. The design of the antenna module, the equivalent circuit, the VSWR against frequency, the gain against frequency, the radiation patterns at the central frequencies of the L1 and L2 ranges of the antenna element, the gain and noise figure of the low-noise amplifier against frequency, and the radiation pattern of the entire module are presented.

中文翻译：

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用于Glonass / GPS GNSS接收器的紧凑型双频天线模块

摘要

提出了一种紧凑的双频导航天线模块，该模块由平面贴片天线元件和带有输入保护元件的两通道低噪声放大器组成。构造低噪声放大器的两通道方案是通过使用两个双工滤波器实现的，这两个双工滤波器是通过定向图的方法计算得出的。贴片天线元件采用允许在基本谐振模式TM ₁₀激励的拓扑结构实现在较低（L2）和较高（L1）频段中，这确保了两个频段中辐射图形状的一致性。天线模块的设计，等效电路，VSWR对频率，增益对频率，天线元件L1和L2范围中心频率的辐射方向图，低噪声放大器的增益和噪声系数频率，并给出了整个模块的辐射方向图。