Planar elliptical element ultra-wideband dipole antennas

Schantz, H.G.

doi:10.1109/aps.2002.1018152

Cited by 121 publications

(51 citation statements)

References 3 publications

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“…The results do not diverge from ones presented in publications concerning printed dipole antenna with elliptical arms (e.g., [21,22]). The antenna is characterized by omni-directional radiation pattern in H-plane at lower frequencies.…”

Section: Measurementssupporting

confidence: 41%

Unified Design Procedure for Planar Dipoles Oriented on Uwb Application

Pergol¹,

Zieniutycz²

2010

PIER

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Abstract-In the paper, the unified design procedure for planar dipoles oriented on UWB application is proposed. The procedure leads to obtain a good matching characteristic of planar dipoles in UWB frequency band. The design process is split into two parts: the radiator and the balun design. The Radiator Quality Factor (RQF) is defined as an evaluation suitability of planar radiators to be matched in UWB frequency band. Based on RQF, the optimal circular radiator is chosen, and the whole dipole antenna is designed. The general algorithm of antenna design is formulated and utilised in the planar dipole with elliptical arms project. Two antennas, with circular and elliptical arms, have been fabricated and measured in order to verify the design procedure. Both antennas are characterized by the reflection coefficient less than −10 dB from 2 GHz up to 14 GHz.

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Section: Measurementssupporting

confidence: 41%

Unified Design Procedure for Planar Dipoles Oriented on Uwb Application

Pergol¹,

Zieniutycz²

2010

PIER

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“…10, the source matching across all the frequency range is shown both in the case of a simple dipole of 44 mm and when the feeding source is a wideband elliptical dipole. The wideband dipole is matched across the overall frequency range when employed in freestanding case and it is characterized by a length of 60 mm and, according to the design in [27], a ratio of minor to major axis of 150%. In both cases the matching of the source is obtained since the FabryPerot cavity determines a sharp transition on the input impedance of the dipole at the resonance [23].…”

Section: Finite Size Antennamentioning

confidence: 99%

“…The excitation of the cavity can be accomplished by a simple short dipole, by a wideband elliptical dipole [27] or alternatively by a printed patch antenna. It has to be pointed out that, if the polarization of the diode is changed and the operating frequency of the cavity is lowered, the dipole becomes much smaller than the original half-wavelength dimension.…”

Section: Finite Size Antennamentioning

confidence: 99%

Design of Subwavelength Tunable and Steerable Fabry-Perot/Leaky Wave Antennas

Costa¹,

Monorchio²

2011

PIER

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Abstract-The design of a thin tunable and steerable Fabry-Perot antenna is presented. The subwavelength structure is analyzed both by an efficient transmission line model and by full-wave simulations. The tunable antenna consists of a low profile resonant cavity made up of a Partially Reflecting Surface (PRS) placed in close proximity of a tunable high-impedance surface. The active ground plane is synthesized by loading the high-impedance surface with varactor diodes. Such design allows both tuning the highgain operational frequency and obtaining a beam steering/shaping for each resonant frequency. The transmission line model here presented includes averaged analytical expressions for modelling the tunable high-impedance surface and the partially reflecting surface. All the theoretical speculations are verified by full-wave simulations on a finite size structure.

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“…To show that this methodology is not limited to simple electrically small antennas, we also model a circular dipole antenna [19] that has been used in the 3-10-GHz ranges. The antenna geometry is shown in Fig.…”

Section: Modeling a Circular Dipole Antennamentioning

confidence: 99%

Circuit modeling methodology for UWB omnidirectional small antennas

Wang

Niknejad

Brodersen

2006

IEEE J. Select. Areas Commun.

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Abstract-In ultra-wideband (UWB) systems, antennas act as filters that introduce a frequency dependent response from the transmitter to receiver. To capture the waveform dispersion so that one can equalize/compensate at the transmitter/receiver, a new circuit modeling methodology that handles omnidirectional small antennas is proposed. By transforming the antennas into the degenerated Foster canonical forms and utilizing the waveform-omnidirectional property, it is shown that the transmitted far field waveform is a scaled version of the voltage across the radiation resistor in the model. Extended Thevenin/Norton equivalent circuits with dependent sources tracking the frequency dependence of the antenna effective length are also built for UWB receiving antennas. Simulation and experimental results show that this methodology is effective over a wide bandwidth and suitable for modeling most UWB antennas.Index Terms-Antenna transfer function, equivalent circuit, Foster canonical form, small antenna, ultra-wideband (UWB).

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Planar elliptical element ultra-wideband dipole antennas

Cited by 121 publications

References 3 publications

Unified Design Procedure for Planar Dipoles Oriented on Uwb Application

Unified Design Procedure for Planar Dipoles Oriented on Uwb Application

Design of Subwavelength Tunable and Steerable Fabry-Perot/Leaky Wave Antennas

Circuit modeling methodology for UWB omnidirectional small antennas

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