The SMA array consists of eight six-meter dishes, two of which were built in Taiwan. By using all eight together, extremely high resolutions can be achieved. In fact, in such circumstances it can emulate a 500-meter dish.
SMA 現有 8 座直徑 6 米的碟型天線望遠鏡，其中兩座為台灣製作；所有碟型天線若全部串連，可在次毫米波段模擬一個直徑長達 500 公尺的望遠鏡，觀測解析度非常高。