Antenna Cable - Explore the Science & Experts | ideXlab


Scan Science and Technology

Contact Leading Edge Experts & Companies

Antenna Cable

The Experts below are selected from a list of 2997 Experts worldwide ranked by ideXlab platform

Antenna Cable – Free Register to Access Experts & Abstracts

Klaus Dostert – One of the best experts on this subject based on the ideXlab platform.

  • channel measurements and simulations with planar inverted f Antennas in an enhanced testbed for a wireless battery management system
    Smart Antennas (WSA 2015); Proceedings of the 19th International ITG Workshop on, 2015
    Co-Authors: Damián Alonso, Oliver Opalko, Klaus Dostert

    Abstract:

    Under the project IntLiIon, we are investigating a wireless data transmission alternative for the Battery Management System of electrical and hybrid vehicles. In our previous work, we introduced the testbed and battery emulator employed for the first radio channel measurements. In this work, we present an enhanced version of this testbed. The connection method between Antenna, Cable, and battery emulator was changed to avoid the influence of the feed Cables in the measurements, allowing more accurate channel measurements. Additionally, we have developed simulation models of the PIFA Antennas and the environment. We validated the new testbed as well as the channel transfer function between Antennas (point-topoint and point-to-multipoint links) in different positions inside the battery emulator by means of measurements and simulations, showing a good agreement.

    Free Register to Access Article

  • WSA – Channel Measurements and Simulations with Planar Inverted F-Antennas in an Enhanced Testbed for a Wireless Battery Management System
    , 2015
    Co-Authors: Damián Alonso, Oliver Opalko, Klaus Dostert

    Abstract:

    Under the project IntLiIon, we are investigating a wireless data transmission alternative for the Battery Management System of electrical and hybrid vehicles. In our previous work, we introduced the testbed and battery emulator employed for the first radio channel measurements. In this work, we present an enhanced version of this testbed. The connection method between Antenna, Cable, and battery emulator was changed to avoid the influence of the feed Cables in the measurements, allowing more accurate channel measurements. Additionally, we have developed simulation models of the PIFA Antennas and the environment. We validated the new testbed as well as the channel transfer function between Antennas (point-topoint and point-to-multipoint links) in different positions inside the battery emulator by means of measurements and simulations, showing a good agreement.

    Free Register to Access Article

P Russer – One of the best experts on this subject based on the ideXlab platform.

  • ultra fast broadband emi measurement in time domain using fft and periodogram
    International Symposium on Electromagnetic Compatibility, 2002
    Co-Authors: Florian Krug, P Russer

    Abstract:

    A novel ultra-fast, broadband time domain EMI measurement system is described Measurements were performed in the 30-1000 MHz range. The signals from the Antenna are digitized and processed by a computer in order to obtain fast-Fourier transform (FFT) as well as Welch and Bartlett periodograms. Correction of errors originating from the frequency characteristics of Antenna, Cable and oscilloscope is made by digital signal processing. With the presented time domain measurement system the measurement time can be reduced by a factor of 10. The results obtained with the described system have been compared with measurements performed with a conventional EMI receiver. Over the whole frequency range from 30 to 1000 MHz the deviations have been below 3 dB.

    Free Register to Access Article

  • ultra fast broadband emi measurement in time domain using classical spectral estimation
    International Microwave Symposium, 2002
    Co-Authors: Florian Krug, P Russer

    Abstract:

    In this paper, a novel ultra-fast, broadband time domain EMI measurement system is described. Measurements were performed in the 30-1000 MHz range. The signals from the Antenna are digitized and processed by computer in order to obtain Fast-Fourier Transform (FFT) as well as Welch and Bartlett Periodograms. Correction of errors originating from the frequency characteristics of Antenna, Cable and oscilloscope is made by digital signal processing. With the presented time domain measurement system, the measurement time can be reduced by a factor of 10. The results obtained with the described system have been compared with measurements performed with a conventional EMI receiver. Over the whole frequency range from 30 to 1000 MHz the deviations have been below 3 dB.

    Free Register to Access Article

J. Delporte – One of the best experts on this subject based on the ideXlab platform.

  • Absolute calibration of timing receiver chains at the nanosecond uncertainty level for GNSS time scales monitoring
    Metrologia, 2020
    Co-Authors: David Valat, J. Delporte

    Abstract:

    The use of Global Navigation Satellite Systems (GNSS) for time transfer is widespread, in particular for the computation of the Coordinated Universal Time (UTC). It is an inexpensive, easy-to-implement method to compare distant clocks. This time transfer method can also be applied to the monitoring of the GNSS time scales and of the broadcast UTC conversion parameters. One mission of the French space agency (CNES) is to perform this task for Galileo. For that purpose it is mandatory to carry out an absolute calibration of the propagation delay of a GNSS receiver chain. This propagation delay is the one between the GNSS Antenna phase centre and the time reference that feeds the receiver chain. In order to allow a link to UTC, the time reference must be a UTC(k). CNES has developed a method of absolute calibration of GNSS receiver chains, in which the delays of the GNSS Antenna, the Antenna Cable and the GNSS receiver are determined separately, with a total uncertainty in the range of 1 ns (1-σ). The purpose of this paper is to present the method developed by CNES along with its uncertainty budget for GPS, Galileo and BeiDou signals. A validation in common-clock with actual GPS and Galileo signals is also provided. The absolute calibration is finally applied to an accurate monitoring of the GNSS time scales, the Galileo broadcast UTC conversion parameters and the broadcast Galileo to GPS time offset (GGTO), with associated uncertainties.

    Free Register to Access Article