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In this work, basic principles of an alternative test procedure exploiting crosstalk to reproduce in the terminal loads of a wiring structure the same disturbances that would be induced by traditional radiated susceptibility (RS) tests are presented. Equivalence with radiation is achieved by the use of a generator circuit properly fed with two synchronized RF generators, and holds for whatever loads...
Satellite equipment needs to be immune to electrostatic discharges (ESD) likely to occur in flight. Testing the susceptibility against ESD on spacecraft equipment is therefore an important part of the EMC test program. The test method according ISO 14302 [1], which is commonly used in space industry, leaves a lot of freedom to the test conductor on how the test is performed, which in turn has an influence...
Electromagnetic coupling to cables has been a major source of electromagnetic compatibility and electromagnetic interference problems. In this paper, we propose a simple and easy technique to reduce crosstalk between three-conductor transmission lines. We used ribbon cable with circular cylindrical section immersed in a homogeneous medium. First, we present two electric equivalent models for three-conductor...
In this work, an alternative test procedure for unit-level radiated susceptibility (RS) testing of airborne equipment is theoretically investigated. The proposed approach applies to units interconnected by multi-wire shielded bundles, and resorts to an auxiliary wiring structure-placed in close proximity of the interconnecting bundle-in order to reproduce via crosstalk (XT) the same electromagnetic...
This work demonstrates a simple experimental setup to measure ESD-induced voltage to traces on a printed circuit board when ESD current is injected directly onto the outside of a metal case and presents how the induced voltage can be affected by the physical structure of the PCB ground and the metal case. The correlation between ESD-induced voltage and the method of connecting the PCB and chassis...
The article consists of a Powerpoint presentation on RF disturbances. The areas discussed include: RF disturbances; electromagnetic field radiation; RF transmitter; RF signal source and coupling/decoupling network.
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