The 1108th Signal Brigade Shoulder Sleeve Insignia, commonly referred to as unit patch, was authorized for wear on 7 July 1995. A black border represents solidarity, strength, and determination; black and white displayed side-by-side in the insignia is a graphic representation of the day-and-night, 24/7 mission of the organization. A gridlined globe in the upper half of the insignia reflects the worldwide scope and impact of the Brigade’s work.
Two black flashes converging on the center line suggest the idea of a fulcrum or balance, objects used for measurement and evaluation. The black arrows’ outlines form a yellow arrow that stands for the input, testing, and incorporation of new communications and information systems.
The 1108th Signal Brigade was created through the redesignation of the U.S. Army Information System on 1 April 1989. In 1993, the Brigade assumed all responsibilities as the 7th Signal Command was closed down, and in 1998 the 1108th Signal Brigade was moved to Fort Detrick, Maryland.
On 16 October 2003, the Brigade was redesignated as the 21st Signal Brigade, but the insignia was not redesignated for it.