This article proposes an ultrawideband rectifier with high efficiency at wide input power range. It consists of a wideband impedance compression network (WICN) and two subrectifiers. The proposed impedance compression network (ICN) offers a more universal design method and higher design flexibility. Thus, the impedance variation of subrectifiers at wide input power range can be reduced at several frequencies. With proper setting of these frequencies, the rectifier can maintain stable, high efficiency at wideband, and wide input power range simultaneously. Besides, the proposed network can also realize impedance matching, hence saving extra matching components. The mechanism of the proposed rectifier is analyzed. For verification, a prototype is implemented and measured. The optimal efficiency of 72.2% is found at 6.5 dBm and 1.2 GHz. The prototype can maintain an efficiency beyond 70% of the peak value at frequencies ranging from 1.0 to 2.7 GHz. The relative bandwidth (91.9%) is so far the widest among the rectifiers with resistance compression networks (RCNs)/ICNs. At the operating band, the rectifier can maintain an efficiency beyond 70% of the peak at input power ranging from −6.2 to 13 dBm. The total size is as compact as $0.19\lambda \times 0.16\lambda $ at the central frequency.

中文翻译：

---

基于宽带阻抗压缩网络的具有扩展动态功率范围的超宽带整流器


本文提出了一种在宽输入功率范围内具有高效率的超宽带整流器。它由宽带阻抗压缩网络（WICN）和两个子整流器组成。所提出的阻抗压缩网络（ICN）提供了更通用的设计方法和更高的设计灵活性。因此，可以在多个频率下减小子整流器在宽输入功率范围内的阻抗变化。通过正确设置这些频率，整流器可以在宽带和宽输入功率范围内同时保持稳定、高效率。此外，所提出的网络还可以实现阻抗匹配，从而节省额外的匹配元件。分析了所提出的整流器的机理。为了进行验证，实施并测量了原型。在 6.5 dBm 和 1.2 GHz 时，最佳效率为 72.2%。该原型机可以在 1.0 至 2.7 GHz 频率范围内保持超过峰值 70% 的效率。迄今为止，相对带宽 (91.9%) 是采用电阻压缩网络 (RCN)/ICN 的整流器中最宽的。在工作频段，整流器可以在-6.2至13 dBm的输入功率范围内保持超过峰值70%的效率。总尺寸紧凑$0.19\lambda \乘以0.16\lambda $在中心频率。