Tata Consultancy Services Limited

Roshan Khobragade

Tapas Chakravarty

Achanna Anil Kumar

Poornima Surojia

Arpan Pal

Manish Jain

Aman Kumar

Pranay Sahay

Lakshmi Narayana Meda

Arunkumar Kalimuthu Rameshwaran

Beamforming is a vital component in space division multiple access (SDMA) and currently employed sectorial beamforming that radiates throughout sector(s) is not sufficient for next generation communication systems. Hence, massive Multiple-Input Multiple-Output (MIMO) having large number of antenna elements is employed in 5G and beyond communication systems that has capability to provide practically realizable SDMA. However, such setups are not economical as large number of antenna elements are employed. Present disclosure provides systems and methods that implement electro-mechanical beam tilting based approach, that uses a single antenna element coupled with a meta-surface mounted on top which provides a directional beam leading to an improvement in signal to noise ratio (SNR). The meta-surface-based beamforming architecture of the system provides an improved bit error rate (BER) and spectral efficiency (SE) with huge reduction in number of antenna elements without using phase-shifter.

Systems and methods for meta-surface-based beamforming

This disclosure relates generally to Millimeter Wave (MMW) frequency antenna scanning system. Conventional approaches available for scanning an antenna beam over a large angular swath with high directivity are unable to address concerns of size and cost involved. The technical problem of providing an MMW frequency antenna scanning system using a single small size antenna capable of scanning as desired at a desired precision is addressed in the present disclosure. The antenna scanning system provided is an electromechanical system that makes the system cost effective. Computer control provides precision control in beam steering from remote. Use of a metasurface and configuration of a radiating patch and a shorting pin in a microstrip antenna addresses the concern with regards to the size of the antenna scanning system.

Computer controlled electromechanical MMW frequency antenna scanning system and beam steering thereof

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Hyderabad Telangana, India

Roshan Khobragade