METHOD AND CONTROLLABLE DELAY UNIT FOR MANAGING AMPLITUDE SLOPE AND PHASE SLOPE OF AN INPUT SIGNAL

摘要

A method, a program code and a controllable delay unit (300) for managing amplitude slope of an input signal (310) and phase slope of the input signal (310) are disclosed. The controllable delay unit (300) comprises an input port (301) configured to receive the input signal (310), and a delay chain (303) configured to provide discrete phase slopes of the input signal (310) at a first set (306) of switchable ports and at a second set (307) of switchable ports. Furthermore, the controllable delay unit (300) comprises a combining sub-unit (308) configured to combine a first and a second discretely delayed signal into an output signal (311), wherein the amplitude slope of the output signal (311) is dependable on a difference between phase slope of the first and second delayed signals and the phase slope of the output signal (311) is dependable on combined phase slope of the first and second delayed signals, and a controlling unit (309) configured to control, based on a control signal (312), the first and second set of switchable ports of the delay chain (303).