Beamforming in Micro-strip Phased Array Antenna through Optimal Phase Angle Rounding-Off Technique

Kumar, A and Mishra, PK and Ghose, D (2023) Beamforming in Micro-strip Phased Array Antenna through Optimal Phase Angle Rounding-Off Technique. In: 2023 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2023, 11 December 2023 through 14 December 2023, Ahmedabad.

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Abstract

The performance and efficacy of a Phased Array Antenna System (PAAS) can be largely enhanced by efficient beamforming techniques. The PAAS typically uses Digital Phase Shifter (DPS) to attain directional beamforming. The beam quantization effects, resulted due to the use of DPS, can be minimized by the use of innovative beamforming methods. Phase Angle Rounding-Off (PARO) techniques achieve near-continuous beamforming, even when using lower-bit DPS elements. Micro-strip or patch antenna are being widely used not only in commercial applications like mobile phones or medical equipment, but also in defence application like target sensors or telemetry systems. In this paper, we use Optimal-PARO (O-PARO) method of beamforming for a micro-strip array antenna, designed in C-band, for airborne communication receiver application. The use of O-PARO results in significantly reducing the scan steps of the array antenna, with high fidelity of beam pointing. Conversely, low-bit DPS can be used in the PAAS, when employing the O-PARO method, to achieve performance equivalent to larger-bit DPS, which has been demonstrated in this paper via simulations. © 2023 IEEE.

Item Type:	Conference Paper
Publication:	2023 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2023
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	03 Sep 2024 09:36
Last Modified:	03 Sep 2024 09:36
URI:	http://eprints.iisc.ac.in/id/eprint/84960

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