Broadband binary phased antenna
First Claim
Patent Images
1. A broadband binary phased antenna, comprising:
- a symmetric antenna element symmetrical about a mirror axis thereof and including feed points on either side of said mirror axis capable of creating opposite symmetric field distributions across said symmetric antenna element, said opposite symmetric field distributions being binary phase-shifted with respect to one another; and
a symmetric switch connected to said feed points and arranged to selectively switch between said opposite symmetric field distributions.
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Abstract
A broadband binary phased antenna includes an array of symmetric antenna elements, each being connected to a respective symmetric switch. The symmetric antenna elements are each symmetrical about a mirror axis of the antenna element and include feed points on either side of the mirror axis capable of creating opposite symmetric field distributions across the symmetric antenna element. The opposite symmetric field distributions are binary phase-shifted with respect to one another. The symmetric switch is connected to the feed points to selectively switch between the opposite symmetric field distributions.
62 Citations
28 Claims
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1. A broadband binary phased antenna, comprising:
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a symmetric antenna element symmetrical about a mirror axis thereof and including feed points on either side of said mirror axis capable of creating opposite symmetric field distributions across said symmetric antenna element, said opposite symmetric field distributions being binary phase-shifted with respect to one another; and
a symmetric switch connected to said feed points and arranged to selectively switch between said opposite symmetric field distributions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A broadband binary phased retransmit antenna, comprising:
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an array of first antenna elements, each being symmetrical about a mirror axis thereof and including feed points on either side of said mirror axis capable of creating opposite symmetric field distributions across said symmetric antenna element, said opposite symmetric field distributions being binary phase-shifted with respect to one another;
an array of second antenna elements; and
an array of symmetric switches, each connecting one of said second antenna elements to one of said feed points of a respective one of said first antenna elements based on a selected one of said opposite symmetric field distributions present across said respective first antenna element. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for broadband binary phase-switching of an antenna, comprising the steps of:
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providing an array of symmetric antenna elements, each being symmetrical about a mirror axis thereof; and
feeding each of said symmetric antenna elements at one of two feed points positioned on either side of said mirror axis to create one of two opposite symmetric field distributions across said respective symmetric antenna element, said opposite symmetric field distributions being binary phase-shifted with respect to one another. - View Dependent Claims (26, 27, 28)
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Specification