Antenna and Microwave Laboratory, SDSU

The collaborative research work between Antenna and Microwave Laboratory, SDSU and NASA Glenn Research Center to design a flat-panel 5G Array for Lunar Relay Operations (FIGARO) started in the year 2020, which resulted in the development of two wideband array architectures (https://lnkd.in/g2MCqcnX, https://lnkd.in/g83J-YXq). Last week was the culmination of this work, where four of these arrays were integrated as the payload onboard Aerostar (Aerostar International LLC)'s high-altitude Cyclone (Thunderstrom) balloon, and were flown to 98,000 ft altitude to test live video streaming and tracking between two ground terminals using the payload arrays. The balloon was launched from Aerostar (Aerostar International LLC)'s hangar at Hurley, South Dakota, and the link was established successfully between the ground terminals and the payload. Congratulations to all the team members from NASA Glenn Research Center (Seth Waldstein @BryanL.Schoenholz Taylor Pember @JamesMDowney @SarahMDever, @LaurynNLeslie @MickVKoch) and Antenna and Microwave Laboratory, SDSU (Satish Sharma Sanghamitro Das Nhat Truong) for their hard work and determination to bring it to fruition. Special thanks to Joshua Frock and @Eric Ramsey from Aerostar (Aerostar International LLC) for their continued support throughout this campaign. This paves the way for more future developments as part of NASA's Artemis missions. #aml #amlsdsu #sdsu #antenna #array #phasedarray #aesa #beamforming #beamsteering #active #nasa #nasagrc #ieee #ieeexplore #ieeetap #ieeeaps #satcom #cubesat #satellitecommunications #satellite #wideband #circularpolarized #Aerostarflighttest

I have been associated with the IEEE since 2000 and have attended IEEE Antennas and Propagation Society Symposia regularly since 2001. I have also extensively served in different volunteer positions for the Society, including as Associate Editor for the flagship journals IEEE Transactions on Antennas and Propagation and IEEE Antennas and Wireless Propagation Letters. Most recently I have served as Vice-Chair of the IEEE AP-S SIGHT Committee, Member of the IEEE AP-S Chapter Activity Committee (CAC) and Member of the Meetings Committee of IEEE AP-Society and Joint Meetings Committee of AP-S/URSI. I am also General Chair of the IEEE Antennas and Propagation Society Symposium 2028, to be held in San Diego, and have served on the steering committees of this flagship symposia in 2008, 2017, and 2023. I am on the IEEE Antennas and Propagation Society AdCom election ballot 2024 (http://eballot.app/ieee). Voting begins September 17, 2024, and will be open until October 29, 2024. I look forward to your support in serving the IEEE Antenna and Propagation Society in the triennium 2025-2027. Please repost or share this post. Thank you in advance. 

It is great to be recognized by the San Diego State University Senate for serving the university senate as senate treasurer between 2022-2024. The plaque inscription reads, "We appreciate your commitment to academic excellence, faculty development, shared governance, student success, diversity and inclusion".

The flight testing of the flat-panel 5G Phased Array for Lunar Relay Operations (22-28 GHz) that was designed at the Antenna and Microwave Laboratory, SDSU, was planned for this week at Aerostar (Aerostar International LLC)'s facility in Sioux Falls, South Dakota. During the first phase, the payload was successfully integrated with Aerostar's flight control unit, and two ground terminals were made operational. However, due to weather factors, the remaining flight testing experiment was pushed back. We will visit Aerostar (Aerostar International LLC) again in the coming weeks to perform the next phase of the flight testing. Many thanks to NASA Glenn Research Center team members (Seth Waldstein Taylor Pember @Mick Koch) and Antenna and Microwave Laboratory, SDSU team members (Satish Sharma Sanghamitro Das Nhat Truong) for contributing to this testing. Additional NASA Glenn Research Center team members are expected to join the testing next time. The details of the flat panel phased arrays can be found in the following publications: https://lnkd.in/g2MCqcnX https://lnkd.in/g83J-YXq #aml #amlsdsu #sdsu #antenna #array #phasedarray #aesa #beamforming #beamsteering #active #nasa #nasagrc #ieee #ieeexplore #ieeetap #ieeeaps #satcom #cubesat #satellitecommunications #satellite #wideband #circularpolarized #Aerostarflighttest

I have been associated with the IEEE since 2000 and have attended IEEE Antennas and Propagation Society Symposia regularly since 2001. I have also extensively served in different volunteer positions for the Society, including Associate Editor for the flagship journals IEEE Transactions on Antennas and Propagation and @IEEE Antennas Wireless Propagation Letters. Most recently, I have served as Vice-Chair of the IEEE AP-S SIGHT Committee, Member of the IEEE AP-S Chapter Activity Committee (CAC), and Member of the Meetings Committee of IEEE AP-Society and Joint Meetings Committee of AP-S/URSI. I am also General Chair of the IEEE Antennas and Propagation Society Symposium 2028, to be held in San Diego, and have served on the steering committees of this flagship symposia in 2008, 2017, and 2023. I will be on the IEEE Antennas and Propagation Society AdCom election ballot 2024. Voting will begin in a few days. I look forward to your support in serving the IEEE Antenna and Propagation Society in the triennium 2025-2027. Please repost or share this post to reach a larger audience. Many thanks for considering my request. My position statement is included below: POSITION STATEMENT: If elected as an Ad-Com member, I will work to enhance the Society’s visibility by increasing and retaining membership. I wish to increase the involvement of industry engineers, sponsors, and exhibitors in the IEEE AP-S Symposia. Additionally, I will work to enhance the participation of the current students, graduated engineers, Post-Doctoral Fellows, early career faculty members, and most importantly, the visible minority students/engineers in the yearly Symposia. I will assert the importance of shared governance, diversity, and inclusion while representing the voices and needs of IEEE AP-S members on the AdCom. I will work to encourage the submission of the SPC Finalist and Honorable Mention papers as expanded papers to the Society’s journals for publication. To increase the participation of visible minorities, I will propose to create new scholarships and fellowships. I am committed to our critical and collaborative work toward a more inclusive and engaged IEEE AP-S community. #IEEE #IEEEAntennasandPropagationSociety #ADCOMELECTION

A recent paper published by Nhat Truong Sanghamitro Das and Satish Sharma from the Antenna and Microwave Laboratory, SDSU, in the IET MAP discusses a highly miniaturised electrically small square loop antenna operating at 2.5 GHz. The antenna is loaded using a simple series combination of two lumped inductors and two interdigitated capacitors in order to realise inherent impedance matching at a given miniaturisation level with respect to a specified source impedance, without using any external matching network. The designed antenna has an overall size of 0.061λ0 × 0.061λ0, which is approximately 75.6% miniaturised in terms of total loop length and 94% miniaturised in terms of overall footprint. Hope it (https://lnkd.in/eusuC3NG) will be an interesting read.

Here are links to selected journal papers on innovative and flat panel phased array antennas from my research group, Antenna and Microwave Laboratory, SDSU, for interested antenna researchers. I hope this will be an exciting read for you. We will present two new phased array antenna works during the @IEEE AP-S Symposium 2024 in Florence, Italy, next week. Sanghamitro Das Rudraishwarya Banerjee Connor Laffey Nathan Labadie Behrouz Babakhani Ghanshyam Mishra Nhat Truong https://lnkd.in/gw8DyNSg https://lnkd.in/g_QEFbjx https://lnkd.in/gaeMe4XC https://lnkd.in/gYFyuJpf https://lnkd.in/gawpZQK3 https://lnkd.in/gqzeiQMx https://lnkd.in/eTNXw9iU https://lnkd.in/grMMKVGA