Testing function of aerial installation with electronic phase control - has common line to one input of exclusive-OR gate and test voltage generator to other

摘要

The circuit is for testing the function of an electronic phase controlled aerial installation. The array consists of a large number of individual radiators, whose currents are determined by a digital phase computer, which sets the values from the memory via phase shift units (1). These consist of inductively or capacitively loaded lines branching off from the common via PIN diodes. The common is connected to one input of an exclusive OR gate (6) and the other input is connected to a test voltage generator (7). A logic zero or one is connected to the phase shift unit under test using a phase computer (3). The same logic condition will be switched to the test voltage generator.