Experiment of IMT-2000 communications using a solar-powered plane flying through the stratosphere - the reduction of interference by array antennas

摘要

The world first experiment of IMT-2000 communication using a solar-powered airplane which flew through the stratosphere at an altitude of 20km was conducted in Kauai, Hawaii in June and July 2002. We encountered a communication failure which was caused by the interference coming from Oahu Island roughly 200km from Kauai. In this report, we report the analysis and reduction of the interference by using an array antenna.