We present the development of the novel elliptical resistively loaded vee dipole (ERLVD). By replacing the constituent subelements with ellipses, the ERLVD has two degrees of design freedom to achieve increased gain, bandwidth, and decreased size compared with the classical resistively loaded vee dipole (RLVD). The prototyped ERLVD with a unity growth rate experimentally achieved a bandwidth ratio of 13:1 (0.49–6.41 GHz) and a smaller arm length of $0.17~\lambda _{\mathrm {low}}$ at 490 MHz. This ERLVD has twice larger the bandwidth ratio, 2–3 dB higher gain, and smaller arm size at 490 MHz compared to similar RLVDs. The second ERLVD with a higher growth rate can achieve much higher relative gain increases of 7–8.5 dB with slightly reduced bandwidth.

中文翻译：

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超宽带椭圆电阻加载 V 形偶极子

我们介绍了新型椭圆电阻加载 V 形偶极子 (ERLVD) 的开发。通过用椭圆替换组成子元件，ERLVD 具有两个设计自由度，与经典的电阻加载 V 型偶极子 (RLVD) 相比，可以实现更高的增益、带宽和更小的尺寸。具有统一增长率的原型 ERLVD 在实验上实现了 13:1 (0.49–6.41 GHz) 的带宽比和更小的臂长 $0.17~\lambda _{\mathrm {low}}$ 在 490 MHz。与类似的 RLVD 相比，这种 ERLVD 的带宽比大两倍，增益高 2-3 dB，490 MHz 下的臂尺寸更小。具有更高增长率的第二个 ERLVD 可以实现 7–8.5 dB 的更高相对增益增加，而带宽略有减少。