Application Notes

• Impedance and phase of automotive LISNs according to CISPR16-1-2
• Rayleigh distance for the horn antenna BBHA 9120 D
• Minimum distance calculation between antenna and EuT
• DC magnetic field immunity testing
• PLC Measurement System EN 50561-1
• Speeding up time consuming Quasipeak-tests using Variscan
• Antenna-element end caps at high transmit power
• Assembly of log.-per. Antennas
• Calibration of Vertical Monopole Antennas (9kHz – 30MHz)
• Calculations for Antenna Measurements, field strength, ERP Effective Radiated Power, EIRP Effective Isotropic Radiated Power
• Comparison table 4:1 broadband baluns, open cone or biconical elements, antenna factors for different combinations of balun and elements.
• Generation of high field strength with stacked logarithmic – periodic broadband antennas. (german only)
• Horn antenna vertical polarisation, horizontal polarisation
• Measurement of field strength below 30 MHz. (german only)
• Site evaluation beyond 1 GHz, NSA, site attenuation, ground reflection. (german only)
• History of the LISN, Transition of the 150 Ohm to the 50 Ohm system, coils with iron core, air-core coils, pre-filter choke (german only)
• Directional pattern of dipole, log.-per. antenna, logbicone antenna
• Estimation of the power requirement for Immunity Testing in Ferrite Tiled Fully Anechoic Chamber.
• The phase center of Log.-per- and hybrid antennas is moving to the antenna tip with higher frequencies. For short measurement distances this effect must be taken into account. Often 1 m and 3 m antenna factor and gain are provided in this context.
• Hints to protect the N-connector or N-jack of an antenna or device.
• CISPR 16-1-2 defines new requirements for V-AMN regarding the magnitude and phase of the impedance and the Isolation.
• Calibration of the longitudinal conversion loss LCL
• EMI-Receiver according to CISPR 16-1-1
• Assembly of an STLP 9128 x Antenna.
• Antenna calibration, calibration of conducted measurands, list of calibrations.
• Definition of the antenna center as reference point for an antenna calibration.
• Connection of DuT and LISN to ground
• Magnetic field measurements in the near and far field
• Antenna factor of monopole antennas on tripod
• Testing CAN bus immunity with Schwarzbeck CDN T2 (german only)