Antenna system
First Claim
Patent Images
1. An antenna system comprising:
- a housing;
a ground plane located within said housing and separating a first circuitry layer from a second circuitry layer;
a radiating element, having an input/output port, for transferring radio frequency energy in a predetermined operational frequency range between said input/output port and free space, said radiating element being located on said first circuitry layer;
a first transmission line, having a first center conductor, for use in transferring radio frequency energy between a first signal node and said input/output port of said radiating element, wherein said first transmission line and said first signal node are located on said first circuitry layer;
a second transmission line, having a second center conductor, for use in transferring radio frequency energy between a second signal node and a third signal node, wherein said second transmission line and said second and third signal nodes are located on said second circuitry layer; and
a transition for use in transferring radio frequency energy between said first signal node on said first circuitry layer and said second signal node on said second circuitry layer, wherein said transition, said first center conductor, and said second center conductor are collectively formed from a single, homogeneous metallic member having substantially uniform composition.
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Abstract
The present invention relates to an antenna system that is particularly suited for use in mobile communications applications. The antenna system includes both a transmit array and a receive array in a side by side configuration. In one embodiment, the radiating elements used in each of the arrays consist of air loaded microstrip patch antennas. The elements in each array are linearly arranged and polarization diversity is utilized so that the transmit and receive arrays can be spaced closely together.
47 Citations
11 Claims
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1. An antenna system comprising:
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a housing; a ground plane located within said housing and separating a first circuitry layer from a second circuitry layer; a radiating element, having an input/output port, for transferring radio frequency energy in a predetermined operational frequency range between said input/output port and free space, said radiating element being located on said first circuitry layer; a first transmission line, having a first center conductor, for use in transferring radio frequency energy between a first signal node and said input/output port of said radiating element, wherein said first transmission line and said first signal node are located on said first circuitry layer; a second transmission line, having a second center conductor, for use in transferring radio frequency energy between a second signal node and a third signal node, wherein said second transmission line and said second and third signal nodes are located on said second circuitry layer; and a transition for use in transferring radio frequency energy between said first signal node on said first circuitry layer and said second signal node on said second circuitry layer, wherein said transition, said first center conductor, and said second center conductor are collectively formed from a single, homogeneous metallic member having substantially uniform composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification