Matching the antenna's impedance to the RF-front-end of a wireless communications system
is challenging as the impedance varies with its surround environment. Autonomously …

This paper presents a novel design of ultra-high transforming ratio quad-band impedance
transformer. This transformer is capable of matching a very high real load (ZL) to the source …

Tunability in RF front-end improves the link quality by maintaining low VSWR in operating
environment through correcting the impedance to counteract the sudden impedance change …

摘要自动阻抗匹配技术可以提高系统的传输效率和稳定性. 目前自动阻抗匹配技术常使用智能
算法进行求解, 但传统智能算法建模复杂, 迭代时间长, 计算量大. 针对这一问题 …

Matching the antenna's impedance with the RF-front-end is an issue for optimum power
transfer, which affects radiation efficiency. This paper describes a technique for …

abstract Digital notch filters are applied to remove or suppress the narrow-band
interferences in digital signals, while preserving other components unchanged. Under the …