A signal corps is a military branch, responsible for military communications (signals). Many countries maintain a signal corps, which is typically subordinate to a country's army.

Signal Corps
Radar in the Signal Corps
The Signal Corps Synthetic Quartz Program
The changing face of the Signal Corps
Application of Multiple Resolution Modeling in Signal Corps Operations Simulation
Maintaining the Information Flow: Signal Corps Manpower and Personnel Requirements for the Battlefield
Study and Application on Model Architecture of Signal Corps in Integrative Joint Operations Simulation
The Future of Monetary Policy: The Central Bank as an Army with Only a Signal Corps?
Getting the Message Through: A Branch History of the U.S. Army Signal Corps by Rebecca Robbins Raines
Radar in the United States Army History and Early Development at the Signal Corps Laboratories, Fort Monmouth, N.J.