Immunity Test

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Minchul Shin - One of the best experts on this subject based on the ideXlab platform.

  • power ground noise Immunity Test in wireless and high speed uwb communication system
    International Symposium on Electromagnetic Compatibility, 2008
    Co-Authors: Changwook Yoon, Hyunjeong Park, Minchul Shin
    Abstract:

    This paper presents a wireless and high-speed transceiver system for Ultra-Wideband (UWB) communication with a high noise Immunity. A proposed transceiver system has a high-speed data transmission up to 130 Mbps. Then, the measurement setup for the noise Immunity Test is introduced. Also, in order to demonstrate a noise Immunity of the system, timing jitter, accumulated waveform, and bit error rate (BER) are measured in the presence of a power/ground noise with various frequencies or amplitudes. The numerous measurement results help to understand the relationship between the power/ground noise and the noise Immunity of the proposed transceiver system.

  • Power/ground noise Immunity Test in wireless and high-speed UWB communication system
    2008 IEEE International Symposium on Electromagnetic Compatibility, 2008
    Co-Authors: Changwook Yoon, Hyunjeong Park, Minchul Shin
    Abstract:

    This paper presents a wireless and high-speed transceiver system for Ultra-Wideband (UWB) communication with a high noise Immunity. A proposed transceiver system has a high-speed data transmission up to 130 Mbps. Then, the measurement setup for the noise Immunity Test is introduced. Also, in order to demonstrate a noise Immunity of the system, timing jitter, accumulated waveform, and bit error rate (BER) are measured in the presence of a power/ground noise with various frequencies or amplitudes. The numerous measurement results help to understand the relationship between the power/ground noise and the noise Immunity of the proposed transceiver system.

Adam Maćkowiak - One of the best experts on this subject based on the ideXlab platform.

Y. Kami - One of the best experts on this subject based on the ideXlab platform.

  • An Immunity Test method using electromagnetic wave of rotating polarization
    Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412), 2003
    Co-Authors: K. Murano, Y. Kami
    Abstract:

    An Immunity/susceptibility Test method using electromagnetic waves of rotating polarization is presented. Low-rate rotation of the field polarization is controlled electrically and continuously in a two-dimensional plane, so that radiated Immunity/susceptibility characteristics depicted three-dimensionally can be obtained by using a turntable together with the method. This paper describes how to generate the rotating fields, and some experimentally measured characteristics of some examples. The results show the effectiveness of the proposed method to reveal the weak/strong Immunity/susceptibility directions at a glance, so that it would be advantageous for trial phase of manufactured products.

  • A new radiated Immunity Test method using rotating AM-EM fields and its application
    2003 IEEE International Symposium on Electromagnetic Compatibility 2003. EMC '03., 2003
    Co-Authors: K. Murano, Y. Kami
    Abstract:

    3D radiated Immunity characteristics can be obtained using a turntable together with our previously proposed radio-frequency radiated-Immunity Test method which uses slowly rotating electromagnetic fields. This paper clarifies how to generate the rotating amplitude-modulated electromagnetic fields and presents experimentally measured Immunity characteristics of an audio amplifier, which show the effectiveness of this method

  • A new Immunity Test method
    IEEE Transactions on Electromagnetic Compatibility, 2002
    Co-Authors: K. Murano, Y. Kami
    Abstract:

    A new measurement system and a mapping technique for Immunity or susceptibility Testing are discussed. The most unique point of the system is that the electromagnetic (EM) fields are of slowly rotating polarization controlled electronically. In this paper, methods for generating slowly rotating fields are discussed. The direction of field polarization can be varied continuously and in a short time. By combining the method with a turntable, for example, the Immunity-or susceptibility-characteristic maps can be obtained easily. This visualization technique is useful to detect the Immunity or susceptibility attributes at a glance and thus may make the development of products with high Immunity easy.

  • Three directional Helmholtz coils for a low frequency-magnetic-field Immunity Test
    1999 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.99EX147), 1999
    Co-Authors: K. Murano, A. Shiokawa, Y. Kami
    Abstract:

    A magnetic field inside a space surrounding three sets of Helmholtz coils is studied to propose a new radiated Immunity Test method. The proposed Immunity Test set arranges the Helmholtz coils three dimensionally and is able to generate the magnetic field of arbitrary direction. Therefore the Immunity characteristics of equipment under Test for many directions can be measured by using this system. The uniformity of the field inside the space is estimated by numerical analysis, and then the effect for a radiated Immunity Test is characterized.

  • New radiated Immunity Test method using fields of low speed rotation
    1998 IEEE EMC Symposium. International Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.98CH36253), 1998
    Co-Authors: K. Murano, Y. Kami
    Abstract:

    A new method of radiated Immunity Testing using fields of low speed rotation is described. The rotating electromagnetic fields are generated by using two orthogonal antennas fed by two different double-side-band waves. In this method, the incident fields exciting equipment can rotate at an arbitrary low speed, so more effective Immunity measurement may be conducted: e.g. Immunity profile of equipment under Test. Basic properties of the fields by two types of orthogonal antennas are measured. Experimental results show that the excited fields have a flat region and rotate correctly.

Changwook Yoon - One of the best experts on this subject based on the ideXlab platform.

  • power ground noise Immunity Test in wireless and high speed uwb communication system
    International Symposium on Electromagnetic Compatibility, 2008
    Co-Authors: Changwook Yoon, Hyunjeong Park, Minchul Shin
    Abstract:

    This paper presents a wireless and high-speed transceiver system for Ultra-Wideband (UWB) communication with a high noise Immunity. A proposed transceiver system has a high-speed data transmission up to 130 Mbps. Then, the measurement setup for the noise Immunity Test is introduced. Also, in order to demonstrate a noise Immunity of the system, timing jitter, accumulated waveform, and bit error rate (BER) are measured in the presence of a power/ground noise with various frequencies or amplitudes. The numerous measurement results help to understand the relationship between the power/ground noise and the noise Immunity of the proposed transceiver system.

  • Power/ground noise Immunity Test in wireless and high-speed UWB communication system
    2008 IEEE International Symposium on Electromagnetic Compatibility, 2008
    Co-Authors: Changwook Yoon, Hyunjeong Park, Minchul Shin
    Abstract:

    This paper presents a wireless and high-speed transceiver system for Ultra-Wideband (UWB) communication with a high noise Immunity. A proposed transceiver system has a high-speed data transmission up to 130 Mbps. Then, the measurement setup for the noise Immunity Test is introduced. Also, in order to demonstrate a noise Immunity of the system, timing jitter, accumulated waveform, and bit error rate (BER) are measured in the presence of a power/ground noise with various frequencies or amplitudes. The numerous measurement results help to understand the relationship between the power/ground noise and the noise Immunity of the proposed transceiver system.

Takashi Matsuo - One of the best experts on this subject based on the ideXlab platform.

  • Conducted interference Immunity Test to high-speed power line communication system
    2009 20th International Zurich Symposium on Electromagnetic Compatibility, 2009
    Co-Authors: Satoshi Hosoya, Masamitsu Tokuda, Takashi Matsuo
    Abstract:

    In this paper, we calculated the Immunity characteristics of PLC system to the conducted interference wave, from the aspect of PHY rate (physical layer data rate) by using MATLAB/Simulink, and compared with measurement results. As the results, it is revealed that the PHY rate of PLC modem can be calculated by using MATLAB/Simulink as well as the measurement one even when the narrowband interference signal is impressed through the power line. In addition, we can confirm by using MATLAB/Simulink that the PHY rate normalized by the maximum value increases by about 20% by inserting the notch when impressing the interference signal in the notch band and C/I is improved by 10~15 dB by inserting the notch.

  • Conducted interference Immunity Test to high-speed power line communication system
    2008 Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008
    Co-Authors: Satoshi Hosoya, Masamitsu Tokuda, Takashi Matsuo
    Abstract:

    In this paper, we measured the Immunity characteristics to the conducted interference wave, from the aspect of PHY rate (physical layer date rate) of PLC (power line communication) system, and compared with simulation results by MATLAB/Simulink. When the interference signal is impressed to the OFDM (orthogonal frequency division multiplexing) signal, the PHY rate decrease rapidly below C/I (carrier / interference) = -10 dB and become nearly zero around C/I = -70 dB, and so it turns out that the PLC system with OFDM signal has an good narrowband interference Immunity characteristic. Furthermore, it is revealed that the PHY rate (physical layer date rate) of PLC modem can be calculated by MATLAB/Simulink even when the narrowband interference signal is impressed through the power line. In addition, we examined the improving effect of the notch band for the Immunity characteristics to the conducted interference wave. As a result, it is revealed that the PHY rate normalized by the maximum value increases by about 20% by inserting the notch when impressing the interference signal in the notch band and C/I is improved by 10~15 dB by inserting the notch.