The Northrop-Grumman Corporation has announced that the Advanced Extremely High
Frequency (AEHF) satellite payload Uplink Phased Array Antenna Technology has
been demonstrated successfully.
Northrop-Grumman completed electrical testing of the uplink phased array
antenna, which receives signals from ground terminals. The AEHF antenna directs
radio frequency beams electronically rather than by moving reflectors
mechanically. This allows a single antenna to do the job of many reflectors,
giving the flexibility to point-on-demand in fractions of a second. Moreover,
the electronically steered antenna reduces the possibility of jamming and
intercept by enemies.
The AEHF uplink antenna will be the first operating at 44 GHz. In addition, it
will utilize the new semiconductor material, Indium Phosphide (InP), for some of
the antenna's more than 10,000 monolithic microwave integrated circuits. InP
semiconductor provides low noise or clear signal performance. The first AEHF
flight payload is scheduled for delivery in April 2006.
The AEHF program will greatly improve access to military satellite
communications while increasing the range of missions the system can support on
the ground, at sea and in the air. The system will provide 10 times greater
total capacity and channel data rate transfer six times higher than that of
Milstar II satellites. AEHF will replace Milstar constellation providing secure,
reliable communications between command and control units wherever they operate.
Copyright © 2003-2017 deagel.com website. All rights reserved.