This study is dedicated to the comprehensive design of a compact circularly polarized microstrip antenna and the integration of essential properties of stable phase center, broad bandwidth, and wide beamwidth into that antenna. Such a compact antenna in electronically low size was firstly achieved by technically using paired fragment-type crossed dipoles and applying multi-objective evolutionary algorithm with enhanced genetic operators. The design method has proved a triumphant one in simulations and experimental tests that it guarantees the proposed antenna to hold the capability of operating in broad band covering the popular GNSS, such as the GPS, BeiDou, Galileo, and GLONASS. The verified antenna has also demonstrated a great flexibility to design requirement that it allows the stable phase center beneath 3.5° over the whole GNSS bands, relatively wide beamwidth more than 130°, and much compact structure.

中文翻译：

---

基于碎片型交叉偶极子的具有宽波束和稳定相位中心的紧凑型圆极化GNSS天线

本研究致力于紧凑型圆极化微带天线的综合设计，并将稳定相位中心、宽带宽和宽波束的基本特性集成到该天线中。这种电子尺寸较小的紧凑天线首先是通过技术上使用成对片段型交叉偶极子并应用具有增强遗传算子的多目标进化算法来实现的。该设计方法在仿真和实验测试中被证明是一种成功的方法，它保证了所提出的天线能够在覆盖流行的 GNSS 的宽带中运行，如 GPS、北斗、伽利略和 GLONASS。经验证的天线还展示了对设计要求的极大灵活性，它允许在整个 GNSS 频段上稳定的相位中心低于 3.5°，