Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-07-21
2008-09-09
Wimer, Michael C (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
Reexamination Certificate
active
07423593
ABSTRACT:
High-directivity microstrip antennas comprising a driven patch and at least one parasitic element placed on the same plane, operate at a frequency larger than the fundamental mode of the driven patch in order to obtain a resonant frequency with a high-directivity broadside radiation pattern. The driven patch, the parasitic elements and the gaps between them may be shaped as multilevel and/or Space Filling geometries. The gap defined between the driven and parasitic patches according to the invention is used to control the resonant frequency where the high-directivity behaviour is obtained. The invention provides that with one single element is possible to obtain the same directivity than an array of microstrip antennas operating at the fundamental mode.
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Anguera Pros Jaume
Baliarda Carles Puente
Borau Carmen Borja
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