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Parametric Optimization of a Non-Foster Circuit Embedded in an Electrically Small Antenna for Wideband and Efficient Performance
- Source :
- IEEE Transactions on Antennas and Propagation, IEEE Transactions on Antennas and Propagation, 2019, 67 (6), pp.3619-3628. ⟨10.1109/TAP.2019.2902614⟩, IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2019, 67 (6), pp.3619-3628. ⟨10.1109/TAP.2019.2902614⟩
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- International audience; In this paper, we present the design of a small, wideband antenna with an embedded non-Foster circuit. The design procedure is based on modeling the antenna in the presence of the EM model of the negative impedance converter (NIC) and trying to optimize the components and location of this active circuit inside the antenna. The EM modeling of the circuit provides the possibility to identify the key parameters that mostly affect the performance of the antenna in terms of bandwidth and efficiency. These parameters are then optimized accordingly. This procedure is applied on a monopole antenna, which has its natural resonance at 2.2 GHz. With an embedded non-Foster circuit, the antenna is miniaturized to cover wideband frequencies around 900 MHz. Two examples are considered for different NIC topologies, after optimizing the components of the NIC, the best performance was given by the second antenna, which exhibits an impedance bandwidth of 50% (0.84-1.45 GHz) and total efficiency of 25%. The measurement results of both antennas are in good agreement with simulations showing a significant enhancement with respect to the passive antenna.
- Subjects :
- non-foster matching
Computer science
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Bandwidth (signal processing)
Astrophysics::Instrumentation and Methods for Astrophysics
020206 networking & telecommunications
02 engineering and technology
7. Clean energy
Capacitance
miniaturization
[SPI]Engineering Sciences [physics]
Electrically small antenna
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Miniaturization
ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS
Electrically small atenna
Electrical and Electronic Engineering
Wideband
Electrical impedance
Monopole antenna
Computer Science::Information Theory
Negative impedance converter
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 67
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi.dedup.....7959c81aa7fb42912b384c2c1ca1b844