Microstrip antenna structure having stacked microstrip elements
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United States of America Patent
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-
May 11, 1982
Issued Date -
N/A
app pub date -
Oct 10, 1978
filing date -
Oct 10, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The structure includes a ground plane and at least two stacked microstrip elements with each microstrip element comprising a conducting plane and a layer of dielectric material. The conducting planes and the intermediate dielectric layers are configured so that they resonate at closely spaced frequencies. Each conducting plane in the structure, except the top one, includes an opening which is large enough to permit sufficient electric field coupling to occur between the microstrip elements so that the individual response characteristics of the conducting planes merge to form a broadband response characteristic. The antenna of the present invention thus has a substantially improved bandwidth over prior art microstrip antennas.
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