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  • Getting Started with Electronic Projects
    In this chapter, we built and tested the RF Power Meter hardware that was based on the Linear Technology LTC5582 (RMS) power detector. We also wrote some simple software to read one of the analog inputs on the BeagleBone and convert the reading to a dBm power measurement.
  • Voltage gain control of a VGA in a UWB receiver
    For instance, the signal power level of -10.3 dBm at the output of the transmitter is reduced to -74.5 dBm after it has propagated through 10- meter UWB channel. As shown in Fig. 1, the analog received signal coming from the channel goes through an RF front-end receiver and a low pass filter (LPF), which is followed by a VGA [4].
  • Radio-over-fiber as the energy efficient backhaul option for mobile base stations
    In this paper, we investigate the base station power consumption per square meter for five different RoF … … transmission scheme is the most energy inefficient scheme in both rural and urban areas; (2) for rural areas using macro base stations (transmitting power above 40 dBm ), digitized RF /IF-over-fiber technique … … less than 25 dBm), analog RF/IF-over-fiber are …
  • A fiber optic/millimeter-wave radio transmission link using HBT as direct photodetector and an optoelectronic upconverter
    Fur- thermore, both digital and analog opticaUmi1limeter-wave ra- dio systems using video FM- and a 140Mbps QPSK-subcarrier are introduced at a wavelength of 0.83 pm and RF frequency of 50 GHz band. Although the system experiments of FM video and 140 Mbps digital transmission involve short path-length transmis- sion of meter order in the transducer transmission power level of -20 dBm to -40 dBm, the links are promising for indoor applications (LAN and …
  • Implementation of a photonic antenna in optical OFDM link
    The measurements of the equivalent isotropically radiated power (EIRP) and signal to noise ratio (SNR) are done with a fixed 0 dBm RF input signal into the directly modulated laser (DML) for all the simulations. The results show that the analog optical wireless link is very suitable to carry the OFDM signals. The results have shown that, the active photonic antenna provides sufficient service for more than 30 meters .
  • IEEE1451.4 multi-sensing platform for wheelchair users assessment
    … i.e. 115,2 kbytes/s, by sending real-time data acquired from eight analog channels of the … The used module (Digi XBee Pro 802.15.4) module has a transmit power of 10 dBm , a receiver sensitivity of -100dBm, an outdoor RF line-ofsight range up to 750 meters , and a indoor/urban range up to 60 meters.
  • A long-range RFID IC with on-chip ADC in 0.25 /spl mu/m CMOS
    The device generates a 3 Voc supply from a -12.3 dBm incident RF signal. This corresponds to an operating distance of more than 18 meters in the US. … transmit data includes the output of an on-chip 5-bit single- slope analog -to-digital converter …
  • Federal Communications Commission Advanced Television System Recommendation
    Employment of an average-readingpower meter and an RF step attenuator provided the ability to measure the amount of noise power being injected into the system. As agreed by the proponents, the strong receiver input level was set at -28 dBm for the Narrow-MUSE analog system and -38 dBm for the four digital systems.
  • Narrowband transceiver IC for operation in multiple frequency bands between 80 and 940MHz
    … European ETSI-300-220, North American FCC Parts 15, 90, 95 and Japan ARIB STD-T67 regulatory standards, the ADF7021 achieves best-in class receiver sensitivity of -123 dBm at 1 kbps and … … T/R switch, VCO tank, RF /IF filters, fully automatic … … ideal for high reliability and maximum range applications such as wireless AMR (automatic meter reading), wireless home … … wireless connectivity applications," said Christian Kermarrec, vice president, RF and wireless systems, Analog Devices, Inc. " .
  • RF power detector/monitor upgrade for the 500 MHz systems at the ALS
    In the Advanced Light Source ( A S ) Booster Ring and Storage Ring RF Systems there are a … … these signals have been attenuated down to a range of -20 to +IO dBm Once detected, some … The primary objectives in this redesign arc to improve the linearity and accuracy over a minimum dynamic range of 2SdB, to interface to the legacy analog loops and control systems, to improve the local meter display capabilities, and to achieve interchangeability amongst …