A Low-Loss Circuit with High-Pass Low-Pass Broadband Flat Negative Group Delay Characteristics
Enze Shi, Aixia Yuan, Junzheng Liu, Niannan Chang, Xinqi Guo · Chips · 2025
A multifunctional circuit with high-pass and low-pass negative group delays can be achieved by simply changing the values of the components in the circuit, without changing the circuit structure. While achieving negative group delay, the circuit also has flat broadband characteristics and lower losses. Theoretical calculations and equation derivation are provided. The experimental circuit was simulated, and the simulation results were essentially consistent with the theoretical results, indicating the feasibility of the experiment.