PHASED ARRAY ANTENNA
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Accused Products
Abstract
A phased array antenna includes a signal source, a distribution circuit, phase shifters, amplifiers, antenna elements, and a control device. The signal source generates a signal. The distribution circuit divides the signal generated by the signal source. The phase shifters shift phases of signals divided by the distribution circuit to change an orientation direction in which electromagnetic wave is emitted. The amplifiers amplify signals output by the phase shifters. The antenna elements emit, as the electromagnetic wave, signals output by the amplifiers. The control device controls the amplifiers such that, in a plane that is parallel to an orbital plane of a satellite with which communication of the electromagnetic wave is established, amplitudes of amplifiers, among the amplifiers, which are arranged in the center of the plane are greater than amplitudes of amplifiers, among the amplifiers, arranged at the periphery.
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Citations
28 Claims
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1-8. -8. (canceled)
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9. :
- A phased array antenna comprising;
a signal source to generate a signal; a distribution circuit to divide the signal generated by the signal source; phase shifters to shift phases of signals divided by the distribution circuit; amplifiers to amplify signals output by the phase shifters; antenna elements arranged on a plane to emit, as an electromagnetic wave, the signals output by the amplifiers; and a control device to control the amplifiers such that, in an intersection line between a plane that is parallel to an orbital plane of a satellite with which communication of the electromagnetic wave is established and the plane on which the antenna elements are arranged, amplitudes of amplifiers, among the amplifiers, that are connected to antenna elements, among the antenna elements, arranged in a center of the plane are greater than amplitudes of amplifiers, among the amplifiers, that are connected to antenna elements, among the antenna elements, arranged at a periphery of the plane. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
- A phased array antenna comprising;
Specification