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The existence of preservation problems is one of the most important consequences of Space Biological Research. The Topical Team is critically analyzing the currently performed procedures and is establishing the bases for a recommendation on new procedures, capable of overcoming the present constraints.
This paper presents an study of influence of finite ground plane size in stacked patch antennas. A new model to carry out this study is presented. The model is based on the tweslot model and consists of a four or six element array. The model can he used to extract surface waves coefficients that are very useful in stacked patches design.