ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,357, issued on March 4, was assigned to KEYSIGHT TECHNOLOGIES SINGAPORE (SALES) Pte. Ltd. (Singapore).

"Antenna arrays for testing wireless devices" was invented by Rajaratnam Thiruvarankan (Beaverton, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, ...