Extremely High Frequency (EHF) Technology Development

Abstract

The most common projected deficiencies for military satellite communications users are greater anti-jam protection and additional capacity and/or channelization. To a first approximation, these deficiencies are being addressed by moving service to the EHF frequency band in the late 80's and early 90's. However, significant technology development and demonstration are necessary if we are to provide reliable communications with high confidence at these frequencies. The generic technologies presently under investigation or planned for the near term include power amplifiers, adaptive antennas, and hardened processors. The plan is to design pilot transponders incorporating these technologies that will be placed in orbit to demonstrate the technology, assist in terminal development and testing, develop and verify operational concepts, and provide initial residual EHF service to selected users.