Ultra-Wideband
A Survey on Recent Approaches in the Design of Band Notching UWB Antennas
... It was claimed that the main idea of this paper could then be used beside most of the ultra wideband systems to avoid any unwanted intrusions to widely used wireless networks and communications. This band ...
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A Novel Ultra Wideband Monopole Antenna with Band Stop Characteristic
... In this letter, a simple monopole antenna with variable band-notched characteristic for ultra wide band (UWB) function is proposed. Two L-shaped quarter-waveguide resonators coupled to the ground plane with two ...
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Design of a compact planar antenna for ultra wideband operation
... achieve ultra-wideband antennas [14-16] in practical applications, such as the waveguide horn [17], log periodic [18], planar inverted cone [19], and biconical ...planar ultra- wideband (UWB) ...
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Time Domain Diversity in Ultra Wideband MIMO Communications
... Ultra-wideband (UWB) technologies are among the “hot topics” in the present days as their specificities are promis- ing for future communications or positioning applications. Extremely cautious regulations ...
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Principles and Limitations of Ultra Wideband FM Communications Systems
... The proposed solution is a constant-envelope frequency- domain approach called UWB frequency modulation (UWBFM) [5]. This double FM scheme uses low- modulation index FSK followed by high-modulation index analog FM to ...
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Interference Mitigation for Coexistence of Heterogeneous Ultra Wideband Systems
... novel ultra-wideband (UWB) technolo- gies, that is, multiband-orthogonal frequency division multi- plexing (MB-OFDM) UWB and direct-sequence (DS) UWB, have been proposed to IEEE ...
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A Hybrid Reconfigurable Antenna Design for Cognitive Radio System—Combination of Sensing and Reconfigurable Antennas
... This design is not a new one, it is a modification of an existing one [2] to get and fabricate more efficient an- tenna. In this paper, a hybrid antenna structure for cogni- tive radio is presented. In Section II, the ...
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Miniaturized Planar Ultra Wideband Bandpass Filter with Notched Band
... This paper presents a planar ultra-wideband (UWB) bandpass filter with sharp out-of-band rejec- tion performance. The filter is formed by a folded multiple-mode resonator to realize high per- formance in an ...
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Investigate And Optimize The Vivaldi Antenna For Ultra-Wideband Applications
... [1]. Ultra Wideband radio transmission is a revolutionary approach in wireless communication field in the sense that it transmits and receives pulse based waveforms compressed in time domain rather than ...
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Trends and Future of Ultra Wideband Localization in RFID and its Applications
... Things (IoT), industrial and consumer systems will be required to detect and localize tagged items with high accuracy using cheap, energy autonomous, and disposable tags. To meet these challenging requirements, the ...
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Compact planar wearable ultra wideband antenna for onbody applications
... ‘Ultra-wideband’ (UWB) describes that the system/signal possesses a large bandwidth (Allen et al., 2006). UWB systems offer high data rate, low cost equipments, multipath immunity and both precise ranging ...
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A Comprehensive Evaluation of Indoor Ranging Using Ultra Wideband Technology
... Ultra-wideband (UWB) signals are characterized by a band- width greater than 500 MHz or one exceeding 20% of the center frequency of radiation [1, 2]. Such technology shows promise for indoor ranging due to ...
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Digital Receiver Design for Transmitted Reference Ultra Wideband Systems
... A complete detection, channel estimation, synchronization, and equalization scheme for a transmitted reference (TR) ultra- wideband (UWB) system is proposed in this paper. The scheme is based on a data ...
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A Compact Triple Notch Band Ultra Wideband Antenna
... Abstract This paper proposed a compact ultra-wideband (UWB) antenna (17.5 × 20.5 mm 2 ) with a triple-notch band characteristic to overcome the interference caused by the three narrow frequency bands that ...
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Influence of the Antennas on the Ultra Wideband Transmission
... of ultra-wideband (UWB) communication de- vices ...The ultra-wide bandwidth allows for resolving the fine structure of the tran- sient transmitting and receiving performance of the ...
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An Analog Correlator for Ultra Wideband Receivers
... an ultra- wideband receiver front end. The ultra-wideband short impulse signals are correlated with a local pulse template by the ...in ultra-wideband ...
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A/D Restrictions (Errors) in Ultra Wideband Impulse Radios
... om both parameters was investigated and presented. Both of them are critical to error performance of Ultra- Wideband Impulse Radio systems. Jitter error plays an important role especially when additive ...
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Slot Ultra Wideband (UWB) Antenna
... The main objective of this project is to design and implement slot Ultra Wideband (UWB) antenna for UWB application. The UWB antenna should be capable of operating over an ultra wide bandwidth as ...
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Power Amplifier Design For Ultra-Wideband Applications
... for ultra wideband (UWB) in Malays ia has grown tremendously due to the germination of researches and implementation of UWB applications at local university and private ...
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Design And Analyze Of Ultra-Wideband Antenna For Medical Applications
... This project is very safe for medical used as the antenna will not giving any negative effect to the human body as the antenna is use as a sensor for detection the unusual tissue and as a medium to transfer and received ...
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