Results 231 to 240 of about 776,777 (280)
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Novel antennas for ultra‐wideband communications
Microwave and Optical Technology Letters, 2004AbstractTwo novel antennas for UWB communications, both inspired from bowtie and triangular patch structures, are presented and tested. This paper proposes their study and optimization in order to cover the new WPAN standard and facilitate their integration on communication devices.
Fortino, Nicolas +3 more
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Design of a directive ultra-wideband antenna
2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007This work presents a novel directive Ultra-Wideband (UWB) antenna. The antenna shows an average gain of 7 dB over the band of interest (i.e., 4-10 GHz) with a return loss better than -10 dB. A broadband balun is also included in the realization. The antenna transfer function has been measured and the effect on pulse transmission has been evaluated ...
F. Merli +3 more
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Miniaturization of ultra-wideband antennas
2008 Asia-Pacific Microwave Conference, 2008This talk briefly introduces design challenges of ultra-wideband (UWB) antennas. An outlined of special design considerations are presented from a systems point of view, followed by some state-of-the-art solutions. Then, the miniaturization technology of UWB antennas is addressed.
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2012
Chipless RFID tags require a significant amount of spectrum in order to encode their data. Hence, ultra wideband antennas seem like the obvious solution as the antenna of choice for the chipless RFID tag. The theory of operation and parametric study of circular disc monopole antennas printed on dielectric laminates is presented.
Stevan Preradovic +1 more
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Chipless RFID tags require a significant amount of spectrum in order to encode their data. Hence, ultra wideband antennas seem like the obvious solution as the antenna of choice for the chipless RFID tag. The theory of operation and parametric study of circular disc monopole antennas printed on dielectric laminates is presented.
Stevan Preradovic +1 more
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An ultra-wideband receiving antenna array
2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013An UWB impulse radio receiving antenna array based on delay and sum beamforming is presented. The array is implemented using a simple impulse radio radar transceiver. The presented radar transceiver is fabricated in 90 nm TSMC technology, and it has a high speed sampler with sampling rate of 10 GHz which recovers the received signal with sufficient ...
Malihe Zarre Dooghabadi +2 more
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Increasing directionality of planar ultra‐wideband antennas
Microwave and Optical Technology Letters, 2009AbstractA directional planar ultra‐wideband antenna is described and characterized through numerical and experimental results. The antenna is composed of a disc monopole fed by a 50‐Ω microstrip line with an L‐shaped ground plane. Simulations and measurements performed in an anechoic chamber demonstrate that the structured ground plane behaves as a ...
LOCATELLI, Andrea +7 more
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Ultra Wideband Wearable Antenna
2019 8th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2019In this paper, a design approach of an Ultra-Wide Band microstrip patch antenna with decent performance and low SAR results is presented. The proposed antenna consists of conducting circular patch element etched on a dielectric printed circuit board with compact size 40×40×1.4 mm3. The design is wearable for on-body applications, flexible, light weight
Jawad Samawi +3 more
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An Ultra-Wideband Bicone Antenna
2006 IEEE International Conference on Ultra-Wideband, 2006An ultra-wideband bicone antenna is developed to cover the 25 MHz to 6 GHz frequency band with a minimum gain at the horizon greater than -5 dBi (>100 MHz) to -10 dBi (25-100 MHz) over this frequency range and a VSWR falling between 2:1 and 3:1. This bicone has a radiating aperture that is 2 inches in diameter and 44 inches long.
Donald N. Black, Theresa A. Brunasso
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Recent topics in Ultra-Wideband Antennas
2012 IEEE International Conference on Ultra-Wideband, 2012We study here three topics in Ultra-Wideband Antennas. First, we consider a standard for characterizing antenna performance in the time domain, We develop a single time domain function, called antenna impulse response, which fully describes antenna performance with equations that are as simple as possible in both the frequency and time domains.
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Ultra-Wideband Antenna Technology
2020This chapter is about ultra-wideband (UWB) antennas and arrays of UWB radiators. Most conventional antenna literature is about narrowband antennas and analysis, which covers most practical situations. The UWB antenna design and analysis require an extension of conventional antenna thinking from steady-state to transient conditions.
P. R. Foster +2 more
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