Anechoic Chamber -- used primarily in the 1-30 GHz range for studying coupling issues, designing and characterizing antennas and antenna systems, and measuring complex scattering targets. This facility was recently modified to allow for monopulse operation in the sub-nanosecond regime.


The anechoic chamber and it's associated control systems and RF sources can be seen in this diagram. The chamber is typically used from 1-30GHz but can be used at lower frequencies for impulse work with the addition of the low-frequency absorbing back wall. The chamber is a full anechoic tapered shielded enclosure and the transmitter is typically located at the tapered end of the chamber for calibrated measurements requiring low ripple conditions.

Note that the small absorber that covers the walls, floor, and ceiling of the chamber has not been shown.



This photo shows the inside of the chamber during an antenna pattern test. Notice the large four foot absorber placed on the back wall as part of another experiment. The smaller one foot absorber that lines the rest of the chamber can be seen on the walls and ceiling.


see also Antenna testing
see also Facilities Tour