| 摘要 |
The invention relates to a plane antenna of the type consisting of supply lines arranged in a plane circuit and cooperating by microwave coupling with a metal earth plate drilled with recesses, the said supply lines having a termination opposite each recess, and of a reflective lower plate arranged at a distance approximately equal to a quarter of a wavelength, characterised in that the metal plate consists of a metal coating 4 deposited on a dielectric substrate 1, in that the supply lines consist of micro-strips 3 arranged in channels 5 emerging into the said recesses 2 and in that the recesses 2, channels 5 and micro-strips 3 are all produced on the said dielectric substrate by the single-sided printed circuit technique. The invention makes it possible to produce antennas for receiving satellite broadcasts direct. <IMAGE>
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