ARRAY ANTENNA WITH IRREGULAR MESH AND POSSIBLE COLD REDUNDANCY
First Claim
1. A transmit and/or receive array antenna (AR) comprising:
- an array (R) of sub-arrays (SR) of at least one radiating element (ER) and control means (Cm, MFF) suitable for controlling the amplitude and/or the phase of the radiofrequency signals to be transmitted or received in the form of waves by each of said sub-arrays (SR) so that they transmit or receive signals according to at least one chosen pattern, characterized in that wherein said sub-arrays (SR) comprise a mean number of radiating elements (ER) which increases from the center of said array (R) to its periphery, and are arranged with respect to one another so as to constitute an irregular mesh offering pattern sidelobes of low intensity and a high gain in a favored direction.
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Accused Products
Abstract
A transmit and/or receive array antenna comprises an array (R) of sub-arrays (SR) of at least one radiating element (ER) and control means charged with controlling the amplitude and/or the phase of the radiofrequency signals to be transmitted or received in the form of waves by each of the sub-arrays (SR) so that they transmit or receive signals according to a chosen pattern. The sub-arrays (SR) comprise a mean number of radiating elements (ER) which increases from the center of the array (R) to its periphery, and are arranged with respect to one another so as to constitute an irregular mesh offering pattern sidelobes of low intensity and a high gain in a favored direction.
22 Citations
19 Claims
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1. A transmit and/or receive array antenna (AR) comprising:
an array (R) of sub-arrays (SR) of at least one radiating element (ER) and control means (Cm, MFF) suitable for controlling the amplitude and/or the phase of the radiofrequency signals to be transmitted or received in the form of waves by each of said sub-arrays (SR) so that they transmit or receive signals according to at least one chosen pattern, characterized in that wherein said sub-arrays (SR) comprise a mean number of radiating elements (ER) which increases from the center of said array (R) to its periphery, and are arranged with respect to one another so as to constitute an irregular mesh offering pattern sidelobes of low intensity and a high gain in a favored direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
Specification