Importance

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Abstract

An integrated circuit includes a programmable reflective load line that includes main delay segments arranged in series between an input of the programmable reflective load line and ground, variable delay modules arranged in parallel between nodes adjoining the main delay segments and ground, and main switches, with each main switch arranged between one of the variable delay modules and one of the nodes adjoining the main delay segments. Each variable delay module includes sub-delay segments arranged in series between the associated main switch and ground. Each variable delay module also includes one or more sub-delay switches, with each sub-delay switch arranged between a node adjoining two of the associated sub-delay segments and ground. The integrated circuit may further include a hybrid coupler arranged with the programmable reflective load line and another programmable reflective load line as a reflective-type phase-shifter.

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First Claim