Measurement methodology and results of measurements of the man-made noise floor on HF in the Netherlands

Radio noise of man-made origin has been measured and studied since the 50s of the past century. From that time on, especially in the last two decades, the electromagnetic environment has changed due to the wide spread and increasingly complicated electronic and computing equipment in domestic and work premises. Not only the character of man-made...

Setup for EMI Shielding Effectiveness Tests of Electrically Conductive Polymer Composites at Frequencies up to 3.0 GHz

Conductive polymer composites have been receiving increased interest both from the scientific community and industry with a special focus on electromagnetic interference (EMI) shielding applications. In this paper, we present the design, EM wave simulation, and validation through S-parameters measurements of an EMI shielding effectiveness (SE)...

Minimizing the Impact of Resonances in Low Voltage Grids by Power Electronics Based Distributed Generators

Today’s Distributed Generators (DG) and load appliances are increasingly build up with power electronics. This trend is expected to grow further in the future. Also developments are ongoing to improve the performance and efficiency of grid components by means of power electronics and several grid components might be replaced by power electronics...

Integrated protection architectures for radars and communication systems

The protection of phased array T/R modules from high input power levels is an important aspect in reducing vulnerability of radars and communication systems RF electronics in modern military platforms. Different categories of threats can damage the sensitive electronics in the phased-array radar, like hostile high power electro-magnetic (HPEM)...

Suitability of integrated protection diodes from diverse semiconductor technologies

In this article diodes from three different semiconductor technologies are compared based on their suitability to protect a receiver. The semiconductor materials involved are Silicon, Gallium Arsenide and Gallium Nitride. The diodes in the diverse semiconductor technologies themselves are close in performance, but the possibility to integrate...

LORIENT CAMPAIGN 1993 ; The Dutch contribution

The performance of radar and infrared systems in a maritime environment is strongly dependent on the conditions of the atmosphere and the sea surface. In the autumn of 1993 an experiment was set up by the NATO Research Study Group AC/243 Panel3/RSG21 to collect propagation data at a line-of-sight propagation path. The purpose of the experiment...