A Simple Equivalent Circuit Model for Plasma Dipole Antenna

Badawy, Mona M.; Malhat, Hend A.; Awadalla, K. H.

doi:10.1109/tps.2015.2494626

Cited by 25 publications

(7 citation statements)

References 12 publications

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“…When υ is small enough, σ can be ignored, and (10) Similar to the ECM of the metasurface in free space in Section II, the objective function for the composite structure can be considered as the sum of the differences between the simulated reflection coefficients and the calculated ones from the equivalent circuit shown in Fig. 5(b) over the frequency range of 1-30 GHz.…”

Section: Modeling Of the Metasurface Loaded With Plasmamentioning

confidence: 99%

“…To verify the ECM shown in Fig. 5(b), use (11) to find the propagation constant and wave impedance at υ = 1 MHz and use (10) for υ = 10 GHz. Two sets of the optimal solutions were obtained through the GA optimization at υ = 1 MHz and υ = 10 GHz, respectively.…”

Section: Modeling Of the Metasurface Loaded With Plasmamentioning

confidence: 99%

“…A plasma is a lossy dispersive medium that can interact with electromagnetic waves to design plasma antennas and plasma absorbers [7]- [9]. Badawy et al [10] proposed a plasma dipole antenna and used an equivalent lumped circuit model to represent the input impedance. A wideband circularly polarized (CP) multiturns plasma helical antenna (HA) with reconfigurable bandwidth was investigated for wireless communications in the X-band [11], [12].…”

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confidence: 99%

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Equivalent Circuit Model Analysis of Electromagnetic Metasurface Loaded With Plasma

Xie

Dong

et al. 2022

IEEE Trans. Plasma Sci.

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An equivalent circuit model (ECM) is proposed for a Jerusalem cross metasurface structure loaded with plasma. Based on the microwave network theory, the electromagnetic properties of the composite structure are analyzed through this ECM. Due to the wave-absorbing effect of plasma, the parallel conductive and inductive elements are introduced to the ECM of the Jerusalem cross metasurface, forming the ECM of the composite structure. The circuit element parameters are extracted by genetic algorithm optimization. The consistency between the simulated reflection coefficient and the calculated ones by this model proves the accuracy of the proposed ECM for analyzing the electromagnetic properties of a composite structure. Moreover, the plasma collision frequency and the plasma electron density are selected within a certain frequency range to further prove the accuracy of this model. The influence of plasma parameters on the equivalent circuit element values is also analyzed. The ECM can predict the electromagnetic properties of the composite structure and provide theoretical guidance for the design.

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Section: Modeling Of the Metasurface Loaded With Plasmamentioning

confidence: 99%

Section: Modeling Of the Metasurface Loaded With Plasmamentioning

confidence: 99%

mentioning

confidence: 99%

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Equivalent Circuit Model Analysis of Electromagnetic Metasurface Loaded With Plasma

Xie

Dong

et al. 2022

IEEE Trans. Plasma Sci.

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“…Such an electrical model can be very useful for circuit simulations, as might be desired in the analysis of an integrated antenna. Accordingly, the development of the electrical circuit model is important for its time-domain analysis, to understand the antenna resonance and structure, to derive mathematical equations, and to design a systematic antenna exploring the equivalent circuit [1][2][3][4][5][6][7][8][9][10][11][12][13]. Moreover, it helps predict the effects of integrating the antenna [11].…”

Section: Introductionmentioning

confidence: 99%

Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications

et al. 2022

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Computation of the broadband antenna impedance behavior requires the wideband lumped equivalent circuit. This work aims to provide a comprehensive study of broadband antenna equivalent circuit models over broad frequency ranges for Internet of Things (IoT) applications using multiple approaches. The first approach is a Foster approximation, which is based on the antenna-simulated scattering parameters and impedance data. The second concerns a vector-fitting fitting approximation, which is based on the antenna-simulated impedance/admittance data. The studied antenna is modeled based on the radiating element’s geometry and the multifractal slots, in addition to the DGS (Defected Ground Plane) effects. Applying these techniques, wideband lumped equivalent circuits of the antenna have been computed which are in good agreement with measurement data. These models could be useful for the enhancement of the performance of a broadband antenna and its systematic design as well as offering the advantage of saving computation time for full-wave simulations and facilitating the solution of problems that have both an electromagnetic part as well as a circuit part. For further analysis, the Gaussian pulse has been generated to drive a time-domain analysis of the current and power response waveforms antenna behavior under load.

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“…In [3][4][5][6][7][8][9][10][11][12][13][14], the authors proposed plasma antenna for which an ionized tube was the radiating element. In [15], the authors proposed a dipole plasma antenna with a lumped element equivalent circuit to represent the input impedance.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Cylindrical Plasma Antenna

Barro¹,

Himdi²,

Lafond³

2018

PIER M

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This paper presents the performance of cylindrical plasma antenna. A plasma tube is used as radiating element. The antenna is designed and works at different frequencies. To couple electromagnetic signal from the coaxial probe to the plasma column, a coupling system is realized. It permits to excite the tube in order to have a monopole or dipole antenna. The performances of the cylindrical plasma antenna are given in terms of S 11 , gain and radiations patterns.

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A Simple Equivalent Circuit Model for Plasma Dipole Antenna

Cited by 25 publications

References 12 publications

Equivalent Circuit Model Analysis of Electromagnetic Metasurface Loaded With Plasma

Equivalent Circuit Model Analysis of Electromagnetic Metasurface Loaded With Plasma

Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications

Reconfigurable Cylindrical Plasma Antenna

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