Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Eastwood Im"'
Autor:
Shuoqi Chen, Seth Sin, Sidharth Misra, Yu Cao, Andy Fung, Pekka Kangaslahti, Michael Tsai, James Hoffman, Alejandro Peralta, Mary Soria, Eastwood Im, Lorene Samoska, Shannon Brown, Robert Lin, Chunsik Chae
Publikováno v:
2021 IEEE Aerospace Conference (50100).
We have been developing gallium nitride (GaN) monolithic microwave integrated circuits (MMICs) towards the goal of implementing a single chip transceiver frontend for cloud radar arrays at Ka-band. We present our first effort design, fabrication and
Autor:
Sidharth Misra, Eastwood Im, Chun Sik Chae, Shuoqi Chen, Andy Fung, Mary Soria, Seth Sin, Alejandro Peralta, Robert Lin, Lorene Samoska, Shannon Brown, James Hoffman, Michael Tsai, Yu Cao
Publikováno v:
RWS
We are developing Ka-band gallium nitride (GaN) monolithic microwave integrated circuits (MMICs) for a compact transceiver frontend. We present the design, fabrication and test results of a GaN power amplifier (PA), low noise amplifier (LNA), and sin
Autor:
Eva Peral, Eastwood Im, Robert M. Beauchamp, Simone Tanelli, Raquel Monje, Mauricio Sanchez-Barbetty
Publikováno v:
2020 IEEE Radar Conference (RadarConf20).
The multidimensional challenge of observing cloud and precipitation processes from space has motivated and focused a number of technological developments in the last decade. They span from novel compact instrument architectures to modular millimeter
Autor:
Travis Imken, Simone Tanelli, David Hawkins, Lauren Wye, Eva Peral, Jim Hoffman, Simon Lee, Stephen Horst, Sang-Ho Yun, Yahya Rahmat-Samii, Eastwood Im
Publikováno v:
Proceedings of the IEEE. 106:404-418
Space-based radar observations have transformed our understanding of Earth over the last several decades. Driven by increasingly complex science questions, space radar missions have grown ever more sophisticated with costs rising often to hundreds of
Autor:
Shivani Joshi, Douglas Price, Jonathan Sauder, Travis Imken, Eastwood Im, Shannon Statham, Eva Peral, Nacer Chahat, Simone Tanelli, Austin Williams
Publikováno v:
IGARSS
RainCube (Radar in a CubeSat) is a technology demonstration mission to enable Ka-band precipitation radar technologies on a low-cost, quick-turnaround platform. The 6U CubeSat currently in orbit features a radar payload built by the Jet Propulsion La
Publikováno v:
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC).
Autor:
Travis Imken, Eva Peral, Simone Tanelli, Nacer Chahat, Austin Williams, Shannon Statham, Jonathan Sauder, Eastwood Im, Douglas Price
Publikováno v:
IGARSS
RainCube (Radar in a CubeSat) is a technology demonstration mission to enable Ka-band precipitation radar technologies on a low-cost, quick-turnaround platform. The mission is manifested for an ISS deployment with the ELaNa-23 launch, currently sched
Autor:
Simone Tanelli, G. Sadowy, Eastwood Im, Ziad S. Haddad, Mauricio Sanchez-Barbetty, Ousmane O. Sy, Eva Peral, Stephen L. Durden
Publikováno v:
2018 IEEE Radar Conference (RadarConf18).
Two decades of spaceborne cloud and precipitation radar data provided by the TRMM's Precipitation Radar (PR) [1], CloudSat's Cloud Profiling Radar (CPR) [2,3] and GPM's Dual-frequency Precipitation Radar (DPR) [4] have enabled unprecedented advanceme
Publikováno v:
International Conference on Radar Systems (Radar 2017).
NASA’s Earth Science Technology Office (ESTO) is currently developing advanced instrument concepts and technologies for the next generation of spaceborne atmospheric radars for clouds and precipitation measurements. Two representative examples are
Publikováno v:
Remote Sensing of the Atmosphere, Clouds, and Precipitation VI.