A small and compact monopole antenna of dimensions 25 × 18 × 1.6 mm³ is presented for UWB communications. The proposed design consists of two kite shaped radiators in coalesced form and a tapered slotted ground plane for the UWB characteristics. The parametric study of the patch and the modified ground plane is made and the measured impedance bandwidth of 14.2 GHz (2.8–17 GHz) is achieved. The measured antenna gain varies from 2.28 to 5.0 dBi for the entire frequency band of application. Group delay, signal analysis and antenna isolation |S₂₁| are also studied at different orientations of the antenna and found to be quite satisfactory to meet the requirements for UWB applications. The co- and cross-polarization patterns are also calculated for E and H-planes, and compared with the measured results. Antenna simulation and optimization are performed using CST Microwave Studio and design is fabricated and measured for the validation of the results.

提出了一种尺寸为25×18×1.6 mm ³的小型紧凑型单极天线，用于UWB通信。拟议的设计包括两个风筝形状的辐射体，这些辐射体是聚结的形式，并且具有锥形槽接地平面以实现UWB特性。对贴片和修改后的接地层进行了参数研究，并获得了14.2 GHz（2.8–17 GHz）的测量阻抗带宽。在整个应用频段，测得的天线增益从2.28到5.0 dBi不等。群时延，信号分析和天线隔离| S ₂₁| 还对天线的不同方向进行了研究，发现它们非常满足UWB应用的要求。还针对E和H平面计算了同极化和交叉极化模式，并与测量结果进行了比较。使用CST Microwave Studio进行天线仿真和优化，并制作和测量设计以验证结果。