Communications: radio wave antennas – Antennas – Microstrip
Patent
1997-01-15
1997-10-28
Le, Hoanganh T.
Communications: radio wave antennas
Antennas
Microstrip
343830, H01Q 1138
Patent
active
056821670
ABSTRACT:
The present invention provides an antenna including a relatively thin substantially planar electrically conductive first layer substantially lying in a first plane, and a relatively thin substantially planar electrically conductive second layer substantially lying in a second plane. The first and second layers are disposed such that the first and second planes are substantially parallel and such that they are separated by a distance d. The second layer is smaller than and overlies the first layer and defines a first region extending between the second layer and a portion of the first layer underlying the second layer. The antenna further includes a first dielectric medium having a relatively high dielectric constant and disposed in the first region, and a second dielectric medium having a relatively low dielectric constant and disposed in a second region extending between the first layer and portions of the second plane overlying the first layer and excluding the first region.
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Mullen Frank E.
Robbins William L.
Le Hoanganh T.
The Charles Stark Draper Laboratory
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