Importance

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Abstract

A digital phase shifter of the present invention is a digital phase shifter in which digital phase shift circuits are cascade-connected, each of the digital phase shift circuits including a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines provided on outer sides of the inner lines, a first ground conductor connected to one ends of the inner lines and one ends of the outer lines, a second ground conductor connected to the other ends of the outer lines, and a pair of electronic switches provided between the other ends of the inner lines and the second ground conductors. The digital phase shift circuits include a multi-row structure constituted by a front row and a rear row, and an inter-row connection structure in which the outer line in the front row and the outer line in the rear row are connected, and the number of the digital phase shift circuits from an input end of an uppermost side digital phase shift circuit in the front row to an input end of an uppermost side digital phase shift circuit in the rear row is set such that a phase of a signal input to the front row uppermost side digital phase shift circuit and a phase of a signal input to the rear row uppermost side digital phase shift circuit are anti-phase with each other.

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First Claim