| PhD Seminar

Name of the Speaker: Ms. Arthi R (EE20D409)
Guide: Prof. David Koilpillai
Co-Guide: Dr. Christopher S
Online meeting link: meet.google.com/vom-hrmf-iuo
Date/Time: 6th January 2025 (Monday), 12:00 PM
Title: Design and Development of Transmit Receive Module and its components in 65nm CMOS Technology Process

Abstract :

Active Electronically Scanned Array (AESA) antennas are extensively utilized in radar and 5G communication systems due to their computer-controlled operation, which provides the flexibility to steer the beam instantaneously in different directions without physically moving the antenna. The fundamental building blocks of AESA systems are the Transmit/Receive Modules (TRMs), which integrate discrete components such as phase shifters, low noise amplifiers (LNAs), attenuators, switches, and other digital control circuitry. Specifically, phase shifters play a crucial role in controlling the phase of the signals transmitted and received by each antenna element, enabling RF beam scanning. LNAs are critical in the receive path of TRMs, where they provide low-noise amplification, directly influencing the noise figure of the receive chain.

To begin with, the primary objective of this work is to design and develop indigenous phase shifter and LNA components in 65nm CMOS technology, ensuring mixed- signal integrity for TRM applications. The designs target S, X, Ku, and K-band frequencies, with optimization spanning from the die-level design to IC packaging, while addressing the challenges encountered during the design and realization stages. Additionally, a novel switched-beam architecture for a frustum-shaped circular antenna is proposed for aerial data-link communication at C-band frequency, aimed at enhancing the gain and bandwidth of the antenna system.