AWT Global introduces Low-PIM Anechoic Chambers
May 20, 2013. AWT Global has launched its ATC Series anechoic antenna test chambers, which are designed for measuring antennas from 700 MHz to 6,000 MHz. Besides a high shielding coefficient of more than 90 dB, the ATC Series antenna test chambers generate low residual passive intermodulation (PIM). The chamber incorporates specifically designed pyramidal electromagnetic absorbing material.
“Not only are today’s antennas required to show excellent transmission characteristics, but due to modern modulation technologies, these antennas have to show very low passive intermodulation (PIM) distortion. Standard anechoic test chambers may provide reasonable shielding, but they are often not suited for low PIM antenna measurements,” said Wolfgang Damm, president of AWT Global. He added, “While the ATC chambers are built solid, they can be moved very easily, giving users with their measurement utilizations utmost flexibility.”
ATC series anechoic antenna test chambers offer a shielding of > 90 dBm over a frequency range from 700 MHz to 6 GHz and are PIM-rated better than -165 dBc at 2 x 43 dBm. With a cylinder diameter of 1.8 m, the ATC series antenna chambers are available in different lengths to suite different customer requirements. Standard types ACT27, ACT32, and ACT35 come with cylinder lengths of 2.7 m, 3.2 m, and 3.5 m. Customized versions are available on request. ATC chambers can be equipped with one, two, four, or six DIN7/16 antenna port bulkheads, allowing the test of a variety of antennas, including multiband and MIMO types.