Title :
Stability analysis and parasitic effects of negative impedance converter circuits
Author :
Qi Tang ; Hao Xin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
Stability is a major obstacle preventing practical applications of negative impedance converters (NIC) such as electrically small antenna matching. Return ratio method with a mesh or nodal analysis in frequency domain can provide an insight of the overall stability and performance of a NIC. This paper studies the stability of two types of NICs, based on tunneling diode and cross-coupled pair MOSFET. The influence of device capacitances, load impedance, and bias network are discussed.
Keywords :
MOSFET; circuit stability; negative impedance convertors; MOSFET; bias network; device capacitances; electrically small antenna matching; load impedance; mesh analysis; negative impedance converter circuits; nodal analysis; parasitic effects; return ratio method; stability analysis; tunneling diode; Capacitance; Impedance; Irrigation; Negative impedance converter; Normalized determined factor; stability;
Conference_Titel :
Microwave Symposium (IMS), 2015 IEEE MTT-S International
Conference_Location :
Phoenix, AZ
DOI :
10.1109/MWSYM.2015.7166891
