© The Institution of Electrical Engineers
Until recently, development of v.h.f.-turnstile-antenna systems for satellites was carried out mainly empirically by using r.f. models, but computer programs are now available to assist in this. One of these programs has been used to model turnstile systems on large cylindrical satellites (of the size of current European scientific satellites) and some general conclusions have been reached concerning the choice of monopole base radius and inclination.
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