The proposed antenna is a Radial-Waveguide Array (RWA) that will operate at Ka band, 25.5-27.5 GHz in transmit and receive for left-hand, right-hand. This Phase I effort will develop the phase shifter element and control distribution layer. This planar antenna has the ability to reconfigure its beam… More

The development and implementation of passive phased array antennas (PAAs) offers significant performance benefits over the current active arrays. The keys to successful development are the low-loss phase shifters and the integration of these phase shifters into a modular and scaleable antenna… More

Improving safety while increasing the pace of space launches requires improved communications capability. An increasing volume of real-time data from numerous sensors and systems can be transmitted to the ground if connecting links can be improved. One way to accomplish this is to use existing… More

The development and implementation of passive phased array antennas (PAAs) offers significant performance benefits over the current active arrays. The keys to successful development are the low-loss phase shifters and the integration of these phase shifters into modular and scaleable antenna… More

By attention to lattice parameter matching, thermal expansion coefficient mismatch reduction and composition of conducting epitaxial detemined.