Innovative Antennas for Satellite Telecom and Radio Telescope

Abstract:
The talk discusses the innovative antennas being developed for various telecom, radar and radio telescope applications. A 350 m diameter reflector antenna is being developed as a detector for the Lunar Crater Radio Telescope. Once deployed, it will be one of the largest filled aperture telescopes. The RF design and development thus involve complexities in terms of structural constraints and environmental interactions, which will be discussed in the talk. In the second half of the talk, all metal circularly polarized patch excited cup antenna arrays will be presented, which are being developed for direct to Earth communication from the potential Europa Lander. These antennas would support the DDL stage communication and back up communication, and project the capability to survive high power levels, cryogenic temperature and high radiation on Europa surface. The optimum placement of these antennas will also be discussed to maximize the coverage hours and data volume per Europa day.

About the speaker:
Gaurangi Gupta a post-doctoral researcher at the NASA Jet Propulsion Laboratory (JPL), California Institute of Technology, USA. She is currently working on the antenna development for radio telescope and satellite communication applications. She completed her Masters and PhD in Electrical Engineering from the Indian Institute of Technology (IIT) Kanpur, India in 2014 and 2020, respectively. During her PhD, she worked on the design and development of low-profile antennas with meta-surface reflectors. She worked as a research associate at IIT Kanpur during 2020-2021, where she worked on phased array antennas for satellite on the move application under an industry collaborated project. Under the Indo-US Fellowship during 2018-2019, she worked as a visiting scholar at the Remote Sensing Center, University of Alabama, where she contributed to the ongoing radar development. She has published multiple papers in journals and conferences, and is a recipient of best paper awards and travel grants in IEEE conferences.

WebEx Info: https://jpl.webex.com/jpl/j.php?MTID=m23bd2df8292c1e155fea702ccc42a5fd
Meeting number (access code): 2761 414 5021
Meeting password: 8qU2V35JNjR

Date/Time: 
10/27/2022 - 12:00
Presenter: 
Dr. Gaurangi Gupta, JPL Postdoctoral Fellow
Location: 
180-101 & WebEx