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|Title:||Limitation of Negative Impedance Converter using Operational Amplifier for matching electrically small antenna||Authors:||Shen, Y.
|Issue Date:||2013||Citation:||Shen, Y.,Chio, T.-H. (2013). Limitation of Negative Impedance Converter using Operational Amplifier for matching electrically small antenna. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) : 1962-1963. ScholarBank@NUS Repository. https://doi.org/10.1109/APS.2013.6711639||Abstract:||This paper investigates the limitation of Negative Impedance Converter (NIC) using Operational Amplifier (Op-Amp). The limitation is theoretical analyzed and then experimentally verified. The results show that, the Op-Amp based NIC has complex input impedance. In addition, the input impedance presents a negative resistance with large magnitude, if a negative small capacitance is desired for matching an electrically small antenna. Therefore, an Op-Amp based NIC reduces the efficiency of the whole matching network, and limits its application in matching electrically small dipole or monopole antenna with large negative capacitive reactance. © 2013 IEEE.||Source Title:||IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)||URI:||http://scholarbank.nus.edu.sg/handle/10635/128922||ISBN:||9781467353175||ISSN:||15223965||DOI:||10.1109/APS.2013.6711639|
|Appears in Collections:||Staff Publications|
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