Tubis Technology Inc.

Other

King Abdulaziz City for Science and Technology

Chak-Ming Chie

James Han Wang

James June-Ming Wang

Saleh Alsaif

Abdulelah Alshehri

Hamed Alsuraisry

A system substantially updates all the phase shifter values of a phased array antenna by using two 'global writes' to update these parameters to all phased-array transformation circuits simultaneously via a serial bus. Antenna elements, each controlled by a phased-array transformation circuit, are individually configured to transform phase and gain according to a register array. The register array has a local register group and a central register group, the local registers physically placed close in proximity to RF chains which each correspond to an element of array antenna, whereby each set of local registers control an individual antenna element and a central register controlling overall beam steering function. Gain values are hierarchically distributed. The apparatus is configured to efficiently elaborate phase shift weights into a submodule of a phase array antenna system with low noise and bandwidth.

Hierarchically elaborated phased-array antenna modules and faster beam steering method of operation

A host processor controls an apparatus by updating all the phase shifter values of a phased array antenna by using 'global write' to update these parameters to all phased-array transformation circuits simultaneously via a serial bus. Antenna elements, each controlled by a phased-array transformation circuit, are individually configured to transform phase and gain according to a register array. The register array has a local register group and a central register group, the local registers physically placed close in proximity to RF chains which each correspond to an element of array antenna, whereby each set of local registers control an individual antenna element and a central register controlling overall beam steering function. The apparatus is transformed by the host efficiently elaborating phase shift weights into a submodule of a phase array antenna system with low noise and bandwidth. The host triggers reuse of phase and gain when it can.

Hierarchically elaborated phased-array antenna modules and faster beam steering method of operation by a host processor

An apparatus consisting of hierarchically elaborated antenna modules is calibrated by steps. Although the AWV can be calculated mathematically based on the required phase shift values of each antenna element for a beam direction to compensate for signal delay. However, in practice, due to hardware implementation imperfection, coupling in signal path for each antenna element within hardware, inaccuracies of implementations, physical misalignment, the mathematically generated AWV does not necessarily provide alignment between transmit beam and receive beam. This subset is sufficient is all practical operation. The subset of AWVs are typically called codebook and the receiver beam points to different direction by using a AWV within the codebook.

Hierarchically elaborated phased-array antenna modules and method of calibration

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Culver City, CA, United States of America

Chak-Ming Chie