Patch antenna, element thereof and feeding method therefor
First Claim
1. A patch antenna element for generating orthogonal beams comprising one or more resonators, a base reflector, and a dual feed mechanism, said dual feed mechanism comprising two pairs of feeding elements capactively coupled to at least one of the one or more resonators via substantially coplanar anti-phase capacitive coupling, each of said pairs comprising substantially balanced feeds configured to be driven via respective anti-phase signals to respectively generate the orthogonal beams.
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Abstract
Various embodiments of a patch antenna, element thereof and method of feeding therefor are described. In general, the patch antenna is configured to generate orthogonal beams and comprises an array of patch elements each contributing to the orthogonal beams and comprising one or more resonators, a base reflector, and a dual feed mechanism. The dual feed mechanism generally comprises two pairs of feeding elements, each one of which comprising substantially balanced feeds configured to drive a respective one of the orthogonal beams via substantially anti-phase capacitive coupling.
7 Citations
28 Claims
- 1. A patch antenna element for generating orthogonal beams comprising one or more resonators, a base reflector, and a dual feed mechanism, said dual feed mechanism comprising two pairs of feeding elements capactively coupled to at least one of the one or more resonators via substantially coplanar anti-phase capacitive coupling, each of said pairs comprising substantially balanced feeds configured to be driven via respective anti-phase signals to respectively generate the orthogonal beams.
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4. The patch antenna element of 3, wherein said pairs of feeding elements are disposed within an area circumscribed by said inner resonator.
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18. A method of generating orthogonal beams using a patch antenna element comprising one or more resonators, the method comprising:
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capacitively coupling two pairs of substantially balanced feeding elements with at least one of the one or more resonators via substantially coplanar anti-phase capacitive coupling; and driving said feeding elements of each of said pairs via respective anti-phase signals to respectively generate the orthogonal beams. - View Dependent Claims (19, 20, 21)
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- 22. A patch antenna for generating orthogonal beams, comprising an array of patch elements each contributing to the orthogonal beams and comprising one or more resonators, a base reflector, and a dual feed mechanism, said dual feed mechanism comprising two pairs of feeding elements capactively coupled to at least one of the one or more resonators via substantially coplanar anti-phase capacitive coupling, each of said pairs comprising substantially balanced feeds configured to drive and generate, via respective anti-phase signals, a respective one of the orthogonal beams.
Specification