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微带天线具有质量轻、体积小、易于制造和便于携带等优点,一般的单个微带天线在效率和方向性方面很难做的很好,将若干微带天线构成天线阵,成为了常用的解决办案。本文通过附加寄生贴片的方法,设计出了性能良好,频带为9.5GHz-11.3GHz的双寄生贴片宽带微带天线,相对带宽为18%,实现了微带天线的宽带化,同时增益达到8.32d Bd。通过设计的宽带阵元及等幅同相的馈电网络,设计出了四元、八元、五元直线微带阵列天线,验证了寄生贴片在阵列天线中应用的可能性,打通了多元微带阵列天线的设计思路,同时为大型的奇数阵元直线阵列及平面阵列天线的设计奠定了基础。
Microstrip antenna with light weight, small size, easy to manufacture and easy to carry, etc., the average single microstrip antenna in the efficiency and direction is very difficult to do well, the number of microstrip antennas constitute an antenna array, has become commonly used Solve the case. In this paper, we design a double parasitic SMD broadband microstrip antenna with good performance and a band of 9.5GHz-11.3GHz by adding a parasitic patch with a relative bandwidth of 18%, which realizes the broadbandization of the microstrip antenna with the gain reaching 8.32d Bd. Through the design of broadband array elements and the same amplitude of the feed network, designed a four yuan, eight yuan, five yuan linear microstrip antenna array, verify the possibility of parasitic patch antenna in the array, opened up a plurality of micro With array antenna design ideas, at the same time for the large odd array elements and linear array antenna array laid the foundation for the design.