Title :
Design and stability of negative impedance circuits for non-foster matching of a monopole antenna
Author :
Nagarkoti, Deepak Singh ; Rajab, Khalid Z. ; Hao, Yuwen
Author_Institution :
Dept. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
This paper discusses the design and stability analysis of negative impedance circuits (NICs). The NIC is used for bandwidth improvement of a monopole antenna. The stability analysis is performed using the Nyquist criterion. We demonstrate that stable negative capacitance is achieved from 10 MHz to 1 GHz.
Keywords :
Nyquist criterion; circuit stability; impedance matching; microwave antennas; monopole antennas; negative impedance convertors; network synthesis; NIC; Nyquist criterion; monopole antenna; negative capacitance; negative impedance circuits; nonfoster matching; stability analysis; Broadband antennas; Circuit stability; Impedance; Stability criteria; NIC; Non-Foster Circuits; Nyquist; Stability;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902383
