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Stability of non-Foster circuits for broadband impedance matching of electrically small antennas
2015 IEEE Radio and Wireless Symposium (RWS), 2015Non-Foster circuits are promising for numerous microwave and antenna applications because they are not limited by the gain-bandwidth product. However, the stability of these circuits is a key issue for their design. In this paper we introduce a three-step scheme to systematically stabilize a non-Foster circuit (NFC) topology that can be used in ...
Aseim M. Elfrgani, Roberto G. Rojas
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Wideband, Non-Foster Impedance Matching of Electrically Small Transmitting Antennas
IEEE Transactions on Antennas and Propagation, 2018Electrically small antennas (ESAs) can be passively matched only over very narrow bandwidths and the resulting antennas have low gains. These are the major limiting factors for ESAs used in transmit applications, especially at high-frequency (HF) and lower Very HF frequency bands.
Ting-Yen Shih, Nader Behdad
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, 2021
Carbon nanotubes (CNTs) have important application in electromagnetic wave absorption due to their unique tubular structure, lightweight feature and high electrical conductivity.
Fenghui Cao +7 more
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Carbon nanotubes (CNTs) have important application in electromagnetic wave absorption due to their unique tubular structure, lightweight feature and high electrical conductivity.
Fenghui Cao +7 more
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European Conference on Cognitive Ergonomics, 2019
This paper introduces a novel method to reduce the capacitance variable time experienced by Vacuum Variable Capacitor (VVC) circuit of 320V/1kW/13.56MHz having a vacuum variable capacitor applied in impedance matching circuit of RF plasma system.
Beomseok Chae +4 more
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This paper introduces a novel method to reduce the capacitance variable time experienced by Vacuum Variable Capacitor (VVC) circuit of 320V/1kW/13.56MHz having a vacuum variable capacitor applied in impedance matching circuit of RF plasma system.
Beomseok Chae +4 more
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A 23.4-31.9 GHz Tunable RF-MEMS Impedance Matching Network for 5G Power Amplifier
2021 29th Iranian Conference on Electrical Engineering (ICEE), 2021This paper presents a new tunable Impedance Matching Network (IMN) structure in frequency range of 23.4-31.9GHz for wideband fifth generation (5G) Power Amplifiers (PAs) by using RF-MEMS switches.
Fazel Ziraksaz, A. Hassanzadeh
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Design of a non-Foster impedance matching network for electrically small antennas
2013 13th Mediterranean Microwave Symposium (MMS), 2013As an antenna becomes smaller, its input reactance increases to greater than its input resistance, resulting in a significant increase of it radiation quality factor and drastic decrease of its bandwidth. Therefore, there is a need for a matching network at the antenna terminals, which may be devised by negative impedance converters (NIC).
Homayoon Oraizi, Seyyed Hamzeh Hashemi
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Advances in Materials
In neural biointerfacing technologies, mitigating the mismatch in mechanical and impedance attributes between neural tissues and bioelectronics remains a central challenge for achieving high‐efficacy neuromodulation.
Liangjie Shan +10 more
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In neural biointerfacing technologies, mitigating the mismatch in mechanical and impedance attributes between neural tissues and bioelectronics remains a central challenge for achieving high‐efficacy neuromodulation.
Liangjie Shan +10 more
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IEEE Transactions on Biomedical Circuits and Systems, 2017
Minyoung Song, Chuang Lu, Ao Ba
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Minyoung Song, Chuang Lu, Ao Ba
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