2010
DOI: 10.1155/2010/243145
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A Transient UWB Antenna Array Used with Complex Impedance Surfaces

Abstract: The conception of a novel Ultra-Wideband (UWB) antenna array, designed especially for transient radar applications through the frequency band (300 MHz–3 GHz), is proposed in this paper. For these applications, the elementary antenna must be compact and nondispersive, and the array must be able to steer in two dimensions. The geometry of the elementary antenna and its radiation characteristics are presented. The array beam steering is analyzed and a technique making the increase of the transient front-to-back r… Show more

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Cited by 12 publications
(6 citation statements)
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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%
“…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%
“…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%
“…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%