Design of a compact biconical antenna for UWB applications

Kudpik, Rapin; Meksamoot, Komsak; Siripon, N.; Kosulvit, S.

doi:10.1109/ispacs.2011.6146212

Cited by 16 publications

(14 citation statements)

References 7 publications

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“…In order to use the solution for electromagnetic field in the biconical line (18)- (20) it is necessary to calculate spectral parameter of the line ν m for desired angles via Equation (6). For example, in Table 1 the spectral parameter ν m for the first ten odd spherical waves (the even spherical waves are not excited by the current (16)) is presented for biconical line with angles θ 1 = 60 • and θ 2 = 120 • .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…In fact, many problems of electromagnetic scattering on conical-like bodies have been solved. Some types of antennas based on biconical lines are proposed for transient electromagnetic waves radiating and receiving [1][2][3][4][5][6]. In order to improve or develop some biconical antenna it is necessary to understand the evolution of electromagnetic fields inside it.…”

Section: Introductionmentioning

confidence: 99%

“…The paper [7] is one of the first works where the general treatment of the biconical antenna theory is given. Further, the electromagnetic properties and characteristics of the biconical antenna have been investigated in [5,6,8]. In papers [9,10] a problem of transient TEM wave excitation and diffraction in the biconical antenna has been solved in the time domain using an approach based on mode matching incorporated into the finite difference time stepping scheme for the mode channels.…”

Section: Introductionmentioning

confidence: 99%

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Axially Symmetric Transient Electromagnetic Fields in a Radially Inhomogeneous Biconical Transmission Line

Kochetov¹,

Butrym²

2013

PIER B

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Abstract-In the present paper a novel mathematical model of physical processes of transient electromagnetic waves excitation and propagation in a biconical transmission line with radially inhomogeneous magneto-dielectric filling is proposed. The model is based on time domain mode expansions over spherical waves. The basis functions of the mode expansions are calculated analytically. The mode expansion coefficients are governed by Klein-Gordon-Fock equation with coefficients depending on a radial spatial coordinate. The explicit finite difference time domain computational scheme is derived to calculate the mode expansion coefficients. Dependences of cutoff frequencies of higher modes of TE and TM waves on the line geometry and dielectric filling are studied. In order to calculate electromagnetic field in the line with higher accuracy, just finite number of terms in the mode expansions is required. Electromagnetic field excited by the transient electric ring current is calculated in both homogeneous and radially inhomogeneous biconical transmission line. It is shown that there is a possibility to increase the bandwidth of the line via introduction of partial dielectric filling without changing the line geometrical size.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Axially Symmetric Transient Electromagnetic Fields in a Radially Inhomogeneous Biconical Transmission Line

Kochetov¹,

Butrym²

2013

PIER B

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“…The CST setup for simulation was similar to the ones adopted in [13,14]. The ground plane was set as PEC and a 50 Ω discrete port was inserted between the cone and the plane.…”

Section: Open Conical Antenna Designmentioning

confidence: 99%

“…The previous analysis pointed out the gap feed length as a relatively more impacting parameter than the spherical cap. Though the relevance of the feed gap to the conical antenna impedance and radiation performances should be expected, as addressed in [14], its dominance over the cap was not foreseen beforehand. In this sense, an extension to the feed gap analysis was carried out for the OCA configuration, calculating the impedance for two further gap lengths: 2 and 4 mm.…”

Section: Feed Gapmentioning

confidence: 99%

On the Design of Conical Antennas for Broadband Impedance Matching Performance

Pereira

Dias

2017

International Journal of Antennas and Propagation

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In the scope of broadband radiators, the biconical antenna, or its monopole conical counterpart, is long known to be a proper choice. One common form of such radiator, the spherically capped conical antenna (SCCA), has closed-form solution to its input impedance, from which the broadband performance potential is easily verified. Nonetheless, from the design perspective, apart from a few clues inferred from existing solutions, little is found to accurately guide the choice of the main geometrical parameters of the antenna that will enable it to comply with a set of imposed bandwidth requirements. This paper proposes a simple 10-step sequence to derive conical or biconical antenna design charts. These charts provide straightforward information on the geometrical limits within which the required antenna impedance matching broadband performance is achieved. The method is assessed for the SCCA and the open conical antenna (OCA) using theoretical and simulated estimates of the input impedance. A discussion on the impact of the cap and the feed gap is included.

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Ultrawide band cage dipole antenna for ultra high frequency band ground penetrating radar system

Kumar

Mevada

Chakrabarty

et al. 2022

Int J RF Mic Comp-Aid Eng

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This paper presents ultrawide band (UWB) Cage Dipole Antenna, designed and developed for ultra high frequency band ground penetrating radar (GPR) system. The presented cage antenna consists of two thick diverging cages composed of 10 cylindrical metallic rods. It operates at 500 MHz center frequency and provides 105% impedance bandwidth for |S11| <−10 dB. Antenna has donut‐shaped radiation pattern and provides 2.6‐dBi gain at center frequency. Impedance variation of designed Cage dipole antenna has been matched using wideband lumped component‐based balanced to unbalanced (Balun) network. Integrated analysis of cage dipole antenna and Balun network has been carried out in 3D electromagnetic simulator and analyzed results are presented. Moreover, metallic mount with Teflon bush has been designed to support the cage dipole antenna during far‐field characterization and its effect has also been taken into account during the analysis. Time‐domain analysis of proposed Cage dipole has been carried out and its results are presented in detail. Presented cage dipole antenna provides suppressed late ringing, making it best suitable for GPR applications.

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Design of a compact biconical antenna for UWB applications

Cited by 16 publications

References 7 publications

Axially Symmetric Transient Electromagnetic Fields in a Radially Inhomogeneous Biconical Transmission Line

Axially Symmetric Transient Electromagnetic Fields in a Radially Inhomogeneous Biconical Transmission Line

On the Design of Conical Antennas for Broadband Impedance Matching Performance

Ultrawide band cage dipole antenna for ultra high frequency band ground penetrating radar system

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