A Transient UWB Antenna Array Used with Complex Impedance Surfaces

Godard, Adrien; Desrumaux, Laurent; Bertrand, Valérie; Andrieu, Joël; Lalande, Michèle; Jecko, Bernard; Couderc, Vincent; Brishoual, M.; Guillerey, R.

doi:10.1155/2010/243145

Cited by 12 publications

(6 citation statements)

References 9 publications

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“…However, exposure of living organisms in an open volume (where no direct contact of electrodes could be achieve) remains frequent both in civilian and military applications. The UWB pulse is in these cases delivered by specific antennas whom design is compatible with the high amplitude ultrashort complex UWB radiation pulses [31]. Such equipment is mainly related to medical devices in the civilian area and to certain kind of radar in the military domain.…”

Section: Discussionmentioning

confidence: 99%

Radiated Ultrashort High-Power Electromagnetic Pulses Induce ATP Release in B16F10 Murine Melanoma Cells

Macaire¹,

Catrain²,

Tortel³

et al. 2015

JEMAA

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Ultrawideband electromagnetic pulses with high amplitude and short duration are reported to affect several aspects of cell physiology. They are usually delivered to the living material through electrodes in small dedicated chambers. Here we showed, using a totally different experimental setup, that radiated EM pulses illuminating the living material through a specialized antenna (without any direct contact) are able to trigger a rapid release of ATP in cultured murine cells that was concomitant with a drop of intracellular AEC. Despite this rapid and strong response, we found that cell viability and clonogenicity were only slightly affected by the EMF exposure.

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Section: Discussionmentioning

confidence: 99%

Radiated Ultrashort High-Power Electromagnetic Pulses Induce ATP Release in B16F10 Murine Melanoma Cells

Macaire¹,

Catrain²,

Tortel³

et al. 2015

JEMAA

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“…Antenna gain is higher than 0 dBi at frequencies higher than 1 GHz and remains relatively stable around 6 dBi from 2.5 GHz to 10 GHz. The antenna can be used as array element when detecting objects buried in wall or ground [7]. Antenna array could improve the gain which may meet requirements of compensating attenuation.…”

Section: Parameter Discussion and Experimentsmentioning

confidence: 99%

“…TEM horn antenna is commonly used due to its relatively high gain, wideband, and simple structure for various applications [1,2]. Typical applications include EMC experiments and ground penetrating radar (GPR), detecting hidden objects in wall and UWB communication [3][4][5][6][7]. To radiate electromagnetic waves, the dimension and impedance of the TEM horn antenna should be properly chosen to achieve wideband characteristics [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel UWB TEM Horn Antenna with a Microstrip-Type Feed

Wang

Fang

et al. 2015

International Journal of Antennas and Propagation

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A novel ultra-wideband (UWB) TEM horn antenna fed by a microstrip-type transition is designed. The feeding structure is directly realized by a microstrip line with the merit of compact size and UWB. To broaden the low frequency band, an arc surface is added at the end of the flare plates. Numerical simulation is applied to discuss the effect of the geometry construction which contains the microstrip-type transition and the circular arc surface at the end of radiating arm. Return loss, radiation pattern, and gain of the fabricated antennas are measured. The measured results show that the antenna yields a wide bandwidth ranging from 1 GHZ to 10.3 GHz with return loss less than −10 dB. The antenna also achieves unidirectional radiation patterns with stable antenna gain. These characteristics imply that the compact antenna may be used for detecting buried objects in the wall or UWB communication systems of band like GSM, Wi-Fi, and so forth.

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“…Compared with the wavelength-scaled array concept, compact size can be achieved by selecting a UWB antenna element to compose the UWB antenna array. Among various UWB antennas [3][4][5][6][7][8][9][10][11][12], planar UWB monopole [6][7][8] and tapered slot antenna [9][10][11][12] are widely used in UWB antenna array designs, as they have characteristics of broad bandwidth, simple structure and easy fabrication.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Connected Antenna Array for Ultra-Wideband Applications

Wang¹,

Zhu²,

Gao³

2015

PIER C

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Abstract-An integrated eight-element antenna array has been proposed for ultra-wideband (UWB) applications. It consists of eight UWB antenna elements and an eight-way binary-tree modified Wilkinson power divider. Any two adjacent elements in the array are connected to each other and share a common side, thus leading to a connected antenna array. Moreover, this arrangement can be utilized to avoid grating lobe level at higher frequencies. Each antenna element comprises a square ring patch and is excited by a tapered balun to achieve low cross-polarization levels. In order to validate the design, a prototype has been fabricated and measured. Both simulated and measured results confirm that the proposed integrated antenna array achieves a good performance of a reflection coefficient below −10 dB from 2.9 GHz to 10.8 GHz, including stable radiation patterns with low side lobe and cross-polarization levels, thus the antenna is promising for applications in UWB imaging systems.

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A Transient UWB Antenna Array Used with Complex Impedance Surfaces

Cited by 12 publications

References 9 publications

Radiated Ultrashort High-Power Electromagnetic Pulses Induce ATP Release in B16F10 Murine Melanoma Cells

Radiated Ultrashort High-Power Electromagnetic Pulses Induce ATP Release in B16F10 Murine Melanoma Cells

A Novel UWB TEM Horn Antenna with a Microstrip-Type Feed

Design and Implementation of Connected Antenna Array for Ultra-Wideband Applications

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