Pastille type aerial for gigahertz communications includes several stacked layers supporting radiating element on dielectric foam

摘要

The antenna comprise a lower substrate (2) with two conducting layer (3) includes an earth plane. Further substrates are stacked on top of this, each have a conducting surface defining a radiating elements. Several may be stacked thus widening of the frequency band of the antenna. The antenna comprise a first substrate (2) with a first conducting layer (3) forming an earth plane, and a second conducting layer (4). A second substrate (5) comprises a conducting layer (6) and this is stacked on top of the first substrate. Several substrates made from dielectric foam may be simply stacked such that the conducting layers which they carry have alternately one or two projections (21) and an opening (61). This defines radiating elements which contribute the widening of the frequency band of the antenna.