Communications: radio wave antennas – Antennas – Microstrip
Patent
1995-06-15
1997-05-06
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Microstrip
343702, 343767, 343770, 343818, H01Q 138, H01Q 1310
Patent
active
056275501
ABSTRACT:
A wide bandwidth, shorted, dual C-patch antenna includes a truncated ground plane, a layer of dielectric material having a first surface overlying the ground plane and an opposing second surface, and an electrically conductive layer overlying the second opposing surface of the dielectric layer. The electrically conductive layer is differentiated into a plurality of antenna elements including a driven antenna element and at least one non-driven, parasitic antenna element. Each of the antenna elements is in the shape of a parallelogram and has one of a rectangular and a non-rectangular (e.g., parabolic, triangular, pentagonal) aperture having a length that extends along a first edge of the electrically conductive layer and a width that extends towards an oppositely disposed second edge. The length has a value that is equal to approximately 20% to approximately 35% of a length of the first edge. The antenna may further include electrically conductive vias or feedthroughs for shorting the electrically conductive layer to the ground plane at a region adjacent to a third edge of the electrically conductive layer. The wide bandwidth antenna may be curved about one or more axes.
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Hajec Donald T.
Ho Tan
Nokia Mobile Phones Ltd.
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