Systems and methods for shaping beams produced by antenna arrays
OwnerMark Popov, Tom Harel +5inventors
InventorsMark Popov, Tom Harel, Yuval Lomnitz, Ilan Hayat, Naftali Chayat, Damian Hoffman, Orel Ron
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Abstract
Antenna array systems and methods for generating an antenna array transmission pattern having a spatial directional distribution of effective power characterized by a low Peak to Average Power Ratio (PAPR). An excitation phase sequence is generated having elements corresponding antenna elements of the array and having a Fourier Transform with a low PAPR. An excitation phase is assigned to each antenna element according to the corresponding element of the excitation phase sequence.
Claims20
A method for generating an antenna array transmission pattern having a spatial directional distribution of effective power characterized by a reduced Peak to Average Power Ratio (PAPR);
- the method comprising:
- providing an antenna array;
- providing at least one transmitter, each transmitter being connected to an antenna element of the antenna array;
- generating at least one excitation phase sequence wherein each element of the excitation phase sequence corresponds to a corresponding antenna element of the array;
- assigning excitation phase to said corresponding antenna element according to said element of the excitation phase sequence;
- and
- each antenna transmitting with the excitation phase determined by the excitation phase sequence;
- wherein the step of generating at least one excitation phase sequence includes selecting elements of the excitation phase sequence such that transmission from locations of the corresponding antenna elements provides a beam pattern characterized by having a spatial Fourier Transform with a reduced spatial PAPR.
A system for generating an antenna array transmission pattern having a spatial directional distribution of effective power characterized by a reduced spatial Peak to Average Power Ratio (PAPR);
- the system comprising:
- an antenna array;
- at least one transmitter connected to each antenna element of the antenna array and operable to generate an oscillating signal;
- at least one phase shifter associated with each antenna element of the antenna array;
- a controller configured and operable to:
- generate at least one excitation phase sequence wherein each element of the excitation phase sequence corresponds to a corresponding antenna element of the array wherein the elements of the excitation phase sequence are selected such that transmission from locations of the corresponding antenna elements provides a beam pattern characterized by having a Fourier Transform with a reduced spatial PAPR;
- assign excitation phase to said corresponding antenna element according to said element of the excitation phase sequence;
- and
- apply to each array element an excitation phase determined by the excitation phase sequence.
Dependencies are inferred from the claim text.