Title :
Time-domain stability analysis/design of negative impedance Inverters and converters
Author :
Elfrgani, A. ; Moussounda, R. ; Rojas, Roberto G.
Author_Institution :
Dept. Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
Non-Foster circuits are attractive for microwave and antenna applications since they are not restricted by the gain-bandwidth product. Two topologies to implement these components are the Negative impedance converters and Inverters (NIC and NIIs). A problem with these circuits is the potential instability due to the presence of positive feedback. The stability properties of these circuits are discussed with a time-domain technique that computes the Lyapunov exponents for the nonlinear system.
Keywords :
Lyapunov methods; circuit feedback; circuit stability; invertors; negative impedance convertors; time-domain analysis; Lyapunov exponents; NIC; NII; antenna applications; gain-bandwidth product; microwave applications; negative impedance converters; negative impedance inverters; non-Foster circuits; nonlinear system; positive feedback; stability properties; time-domain technique; Circuit stability; Impedance; Loaded antennas; Power system stability; Stability criteria; Lyapunov Exponent; Non-Foster; Stability Analysis;
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6177-4
DOI :
10.1109/MWSYM.2013.6697646
