Results 221 to 230 of about 76,234 (259)
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A Dual Band Notched Ultra-Wideband Antenna
Wireless Personal Communications, 2019In this paper, we design a planar monopole UWB antenna among two notched. Two semi-elliptical geometries are introduced at the lower and upper side’s rectangular patch. For increasing the antenna’s impedance bandwidth, stepped ground plane is used.
Garima Srivastava +3 more
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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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A Compact Ultra-Wideband Multibeam Antenna System
IEEE Transactions on Antennas and Propagation, 2018A compact UWB (6-18 GHz) multibeam antenna system is proposed. Design procedures comprising of ridged coaxial waveguide, radome with lens properties, and biconical antenna are presented. A novel UWB feed network consisting of a ridged coaxial waveguide with eight inputs has been designed and optimized to achieve minimum reflections as well as desired ...
Ahmad Emadeddin +4 more
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A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection
Microwave and optical technology letters (Print), 2020A new type of fractal‐shaped microstrip patch antenna for ultra‐wideband (UWB) applications and with sufficient rejection in the WLAN band is presented.
R. Garg +3 more
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IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002
The radiation characteristics of ultra-wideband (UWB) monopulse arrays are discussed in this paper. The UWB arrays considered here consist of ultra-wideband sources radiating coded sequences of ultra-narrow Gaussian mono-pulses with very low duty cycle.
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The radiation characteristics of ultra-wideband (UWB) monopulse arrays are discussed in this paper. The UWB arrays considered here consist of ultra-wideband sources radiating coded sequences of ultra-narrow Gaussian mono-pulses with very low duty cycle.
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Design studies of ultra-wideband microstrip antenna for ultra-wideband communication
2009 Loughborough Antennas & Propagation Conference, 2009This paper presents a circular printed monopole antenna for the Ultra-Wideband (UWB) applications. The antenna achieved over all bandwidth of 120% from operating frequency from 3.1 to 11.5 GHz for return loss
S. Adnan +5 more
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On the integration of ultra wideband antennas in DVD players
IEEE Transactions on Consumer Electronics, 2009Impulse radio (IR) ultra wideband (UWB) is one of the possible wireless technologies to develop indoor high data rate communication systems. Due to their high bandwidth, UWB antennas introduce distortion influenced by the device where they are integrated, decreasing the system performance in terms of bit error rate (BER).
Pedro Luis Carro +2 more
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An ultra-wideband reflector antenna
Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002An experimental reflector antenna using a hybrid orthogonal TEM (transverse electromagnetic) feed concept is described. The new TEM feeding arrangement extends the operating frequency bandwidth by allowing the reflector antenna to operate efficiently at lower frequencies. The radiation characteristics were examined over a 10:1 bandwidth.
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Ultra-wideband antenna for a ground penetrating radar
2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN), 2016In this paper we have modeled a ultra-wideband 4×1 modified Vivaldi antenna array using the software HFSS for GPR applications. A one to four Wilkinson's power divider was designed to form the feed network for the antenna array. We have obtained ultra-wideband characteristics ranging from 1.19 GHz–9.62 GHz and multiband characteristics with frequency ...
Niloy Chakrabarti +3 more
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Ultra-wideband radio frequency vest antenna
MILCOM 2000 Proceedings. 21st Century Military Communications. Architectures and Technologies for Information Superiority (Cat. No.00CH37155), 2002The ultra-wideband radio frequency vest antenna is the result of the research efforts to develop an antenna system to support the Joint Tactical Radio System (JTRS) currently being procured by the United States Department of Defense. The JTRS is an ultra-wideband radio system that is expected to operate in the 2 MHz to 2000 MHz frequency range. It is a
Jovan, E. Lebaric +2 more
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