The paper presents the design of a frequency and pattern reconfigurable rectangular patch antenna using a single PIN diode switch. The use of single PIN diode reduces the complexity of the biasing network required for the diode. The proposed antenna can work in two different modes and resonates at 2.47 GHz, 3.8 GHz, and 5.36 GHz with the capability to change the radiation pattern. In this design biasing lines required for biasing of the diode are placed away from the radiating structure and the pattern search algorithm is used for the optimization of antenna feed for achieving impedance matching. These are the two improvisations made in the presented design as compared to the existing designs in literature.

本文介绍了使用单个PIN二极管开关设计的频率和方向可重构矩形贴片天线的设计。使用单个PIN二极管降低了二极管所需的偏置网络的复杂性。拟议中的天线可以工作在两种不同的模式下，并具有2.47 GHz，3.8 GHz和5.36 GHz的谐振频率，并具有改变辐射方向图的能力。在该设计中，将二极管偏置所需的偏置线放置在远离辐射结构的位置，并且将模式搜索算法用于优化天线馈电以实现阻抗匹配。与文献中的现有设计相比，这是当前设计中的两个即兴创作。