A novel double annular-ring microstrip antenna, split into six sectors, is proposed to achieve multiband operation with high gain and impedance bandwidth. The gaps on the driven and parasitic patches excite resonant frequencies that are located in the Ku-, K-, and Ka-bands thus making the antenna capable of these multiband applications. The present design is numerically and experimentally investigated. This investigation indicates that the suggested antenna achieves four operating bands, with impedance bandwidths of 1.72 GHz (12.16–13.88 GHz), 2.04 GHz (19.28–21.32 GHz), 1.54 GHz (24.04–25.58 GHz), and 1.97 GHz (27.37–29.34 GHz) which correspond to the resonant frequencies of 13.10 GHz, 20.72 GHz, 25.00 GHz, and 28.85 GHz, respectively. Also, the new design achieves good values of gain (6.11–8.31) dB and a return loss of between −16.14 dB and −21.52 dB. The commercial tool Ansoft high frequency structure simulator is used to simulate the designed antennas and it compared with the obtained measurement data. The comparison shows close agreement between the simulations and measurements.

提出了一种分为六个扇区的新型双环形微带天线，以实现具有高增益和阻抗带宽的多频段操作。驱动贴片和寄生贴片上的间隙会激发位于 Ku、K 和 Ka 波段的谐振频率，从而使天线能够用于这些多波段应用。目前的设计进行了数值和实验研究。该调查表明，建议的天线实现了四个工作频段，阻抗带宽分别为 1.72 GHz (12.16–13.88 GHz)、2.04 GHz (19.28–21.32 GHz)、1.54 GHz (24.04–25.58 GHz) 和 1.937 GHz (2297 GHz) GHz) 分别对应于 13.10 GHz、20.72 GHz、25.00 GHz 和 28.85 GHz 的谐振频率。此外，新设计实现了良好的增益值 (6.11–8.31) dB 和介于 -16.14 dB 和 -21 之间的回波损耗。52 分贝。使用商用工具 Ansoft 高频结构模拟器对设计的天线进行仿真，并与获得的测量数据进行比较。比较表明模拟和测量之间非常吻合。