Modular Dual-band Ku/Ka Antenna Tile with Digital Calibration (K-Tile)

Following a very successful development of a new, highly accurate, digitally calibrated (but large and high-power) TRM [Transmit/Receive Module], we will leverage this demonstrated architecture. We will reduce the size/power of the ~18x6" 100W digitally calibrated TRM, developed for DESDynI to a much smaller, lower power, modular [PC104 footprint (10x10cm), and a 10W output power] TRM. The TRM elements required to enable digital calibration will be fabricated within a GaN MMIC, using a commercially available foundry. The estimation/control algorithms will be modified to fit within a CubeSat form-factor processer. In fact, platforms with Xilinix V6 processors are already available for CubeSats, and our current flight model is able to digitize, perform our digital calibration and do beamforming for 4-channels, The V6 should be capable of handling many more channels. This will drastically reduce the size and power, enabling SweepSAR or other digital beamforming radars to be hosted on small platforms. Science goals for atmospheric studies include a K-band channel to measure cloud droplet size, glaciation height, and cloud height. A small form factor digitally calibrated TR front-end will enable the very accurate measurements required for estimating cloud and aerosol properties, through polarimetry. The same technology is capable of miniaturizing the front-end of a Ku/Ka band radar required for highly accurate measurements required for estimating snow/ice height. The dual-polarization-mode SAR enables discrimination of the radar backscatter into volume and surface components. This work will develop a GaN TR module front-end, which includes the architecture enabling digital calibration. Unlike prior efforts, this will miniaturize the successful digital calibration concept to very small form factors. We will develop the devices to accommodate a PC104 form factor (CubeSat), to leverage that standard, and to allow use on CubeSat, but our target applications are better served by other small platforms, such as airborne (small remotely piloted), and small-sats. As such, our future plans will propose this to flight demos (InVest), and airborne (IIP) to enable future flight programs.

Accelerate mission development and reduce risk by developing critical components and subsystems for advanced instruments and observing systems

This is early/mid-stage (TRL 4) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.