80 results found.
Year: 2010, Volume: 10, Issue: 1
... order the results not to be affected by other radio frequency emissions from the surrounding environment- using a 20 Hz- 26.5 GHz EMI Test Receiver, a log-periodic antenna and RF Figure 1. Experimental test setup for WSN node- RF power level cables. measurements (anechoic chamber). Index Terms — wireless sensor networks ...
Terms matched: 1 - Score: 25 - 680k
Year: 2009, Volume: 9, Issue: 1
... , 2009 Influence of Different Types of Metal Plates on a High Frequency RFID Loop Antenna: Study and Design Kevin D'HOE1, Anneleen Van NIEUWENHUYSE1, Geoffrey OTTOY1, ... the new concept. Difference Antenna Resonance Percentage of Distance between type frequency frequency shift antennas We measured the influence of a second metal plate at a distance "d ...
Terms matched: 2 - Score: 175 - 1,121k
Year: 2009, Volume: 9, Issue: 1
... far field condition. Both AP measurement was made on, was of 10m. antenna and wireless card antenna mounted on a laptop In the second part of the ... people use to stay, by room, in the far field of the emitting antennas, in case of a following an adequate protocol. The field distribution in ...
Terms matched: 2 - Score: 31 - 536k
Year: 2009, Volume: 9, Issue: 2
... by the electric equipment and Another reason for the choice of the 50Ω characteristic conducted on the supply lines can be checked using a line impedance value is that monopole antennas have impedance stabilization network and a spectrum approximately the same characteristic impedance value, analyzer/EMC receiver. which guaranties an optimum match to the cable.- ...
Terms matched: 1 - Score: 3 - 606k
Year: 2009, Volume: 9, Issue: 1
... [3] and developed for integrated system design. These SOC or NOC virtual antenna array [4] concepts have been proposed to based wireless nodes typically operate ... physical implementation of device to be used as a fully-functional wireless node. SOC multiple antennas at a small node may not be feasible. As (System on Chip ...
Terms matched: 2 - Score: 65 - 521k
Year: 2008, Volume: 8, Issue: 2
... VLM availability inside the remote- Programming and data collection via USB; "laboratory" and the state of the installed applications- 16-pin expansion support and optional SMA antenna (whether applications are currently running or not, their connector; image number, name, compile date). The VLC's flexibility- TinyOS support: mesh ...
Terms matched: 1 - Score: 16 - 1,125k
Year: 2008, Volume: 8, Issue: 2
... fast fading, Lf in (3) and (4 ), is using antenna RSS and TOA", European Conference on the Use of Modern Information and ... nodes are needed. Also an indication should be given when 2.4GHz to 24GHz" Antennas and Propagation Society International the blindfolded node is assumed to be in a room ...
Terms matched: 2 - Score: 5 - 534k
Year: 2007, Volume: 7, Issue: 1
... , Trilogy of Inductors, Würth elektronik [9] Istvánffy Edvin, Tápvonalak, antennák, hullámterjedés, Tankönyvkiadó, Budapest 1967 [10] A. Vitanza, ... by half bridge inverter, which produces a [17] Martin Alexander, Using Antennas to Measure the Strength of Electric wide – band noise. Fields near Equipment ...
Terms matched: 2 - Score: 21 - 572k
Year: 2007, Volume: 7, Issue: 1
... For application in these cases we develop an measurements of the electromagnetic field. Otherwise the optoelectronic telemetry system, for measurements, of the ELF sensor must be an antenna with extreme long dimensions. electric and magnetic fields, with small sensors in the So the limits are given in electric or magnetic field values measurement point and ...
Terms matched: 1 - Score: 3 - 435k
Year: 2007, Volume: 7, Issue: 1
... platform for research, application is equipped with an on-chip RAM size of 10kB, an IEEE development and learning. The toolkit includes technologies 802.15.4 radio and an integrated antenna providing a range for voice recognition, text-to-speech synthesis, an animated up to 125 meters. The module includes a hardware protected agent and a graphical authoring tool ...
Terms matched: 1 - Score: 3 - 1,208k