Circular polarized array antenna
First Claim
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1. A circular polarized array antenna comprising:
- groups of at least one set of patches for radiating or receiving a circular polarised electromagnetic wave; and
a network of feeding lines, each feeding line being coupled to and extending longitudinally or vertically to one of the sets of patches for transferring signal energy to or from the set,wherein each feeding line is pointing in a direction different from a pointing direction of other feeding lines in order to achieve a circular orientation of the network of feeding lines, two groups of adjacent feeding lines include a same angle between adjacent feeding lines, and the at least one set of patches includes three patches.
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Abstract
A circular polarized array antenna includes: groups of at least one set of patches for radiating and/or receiving a circular polarised electromagnetic wave; and a network of feeding lines, each feeding line being coupled to and extending longitudinally or vertically to one of the sets for transferring signal energy to and/or from the set. Each of the feeding lines coupled to the sets is pointing into a direction different from the pointing direction of the other feeding lines in order to achieve a circular orientation of the network of feeding lines.
281 Citations
70 Claims
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1. A circular polarized array antenna comprising:
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groups of at least one set of patches for radiating or receiving a circular polarised electromagnetic wave; and a network of feeding lines, each feeding line being coupled to and extending longitudinally or vertically to one of the sets of patches for transferring signal energy to or from the set, wherein each feeding line is pointing in a direction different from a pointing direction of other feeding lines in order to achieve a circular orientation of the network of feeding lines, two groups of adjacent feeding lines include a same angle between adjacent feeding lines, and the at least one set of patches includes three patches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of making an array antenna that radiates or receives a circular polarized electromagnetic wave by groups of at least one set of patches, the method comprising the steps of
providing a network of feeding lines, each feeding line being coupled to and extending longitudinally or vertically to one of the sets of patches for transferring signal energy to or from the set, arranged each feeding line so as to be coupled to a group of sets in such a way that each feeding line has a pointing direction different from a pointing direction of other feeding lines in order to achieve a circular orientation of the network of feeding lines, arranging two groups of adjacent feeding lines in such a way that the two adjacent groups of feeding lines include a same angle between adjacent feeding lines, and providing three patches for each set of patches.
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69. A beam-switching array antenna comprising:
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sets of at least one patch for radiating or receiving a circular polarised electromagnetic wave; and horn antennas added to the sets in order to keep the same circular polarisation and increase gain, wherein the horn antennas are arranged such that each horn antenna has a beaming direction different from a beaming direction of other horn antennas, an axis of a central horn antenna is vertical and an axis of other horn antennas is tilted with respect to the axis of the central horn antenna, and a greater amount that the other horn antennas are offset from the central horn antenna, a greater amount the axis of the other horn antennas is tilted with respect to the axis of the central horn antenna.
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70. The method of making a beam-switching array antenna that radiates or receives a circular polarized electromagnetic wave by sets of at least one patch, the method comprising the steps of:
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providing horn antennas to each one of the sets in order to keep the same circular polarisation and increase gain, and arranging the horn antennas in such a way that each horn antenna has a beaming direction different from a beaming direction of the other groups of horn antennas, wherein an axis of a central horn antenna is vertical and an axis of other horn antennas is tilted with respect to the axis of the central horn antenna, and a greater amount that the other horn antennas are offset from the central horn antenna, a greater amount the axis of the other horn antennas is tilted with respect to the axis of the central horn antenna.
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Specification