Abstract: A digital phase shifter (100) includes a bend-type connection unit (e.g., a connection unit (20-1)) connecting a first digital phase shift circuit (e.g., a digital phase shift circuit (10-10)) located at an end portion of a first digital phase shift circuit group and a second digital phase shift circuit (e.g., a digital phase shift circuit (10-11)) located at an end portion of a second digital phase shift circuit group, and a capacitor (50) is connected in parallel to at least one of a first connection line of the connection unit (20), a position in the vicinity of a connection position between signal lines of two adjacent digital phase shift circuits (10) constituting the first digital phase shift circuit group, and a position in the vicinity of a connection position between signal lines of two adjacent digital phase shift circuits (10) constituting the second digital phase shift circuit group.

Abstract: A digital phase shifter includes a plurality of digital phase shift circuit groups in which a plurality of digital phase shift circuits are connected in cascade, and one or more bend type connection portions that connect two of the digital phase shift circuit groups to each other, in which a connection portion includes a coil that is connected in series between a signal line of a first digital phase shift circuit and a signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, a pair of capacitors that are connected in parallel on both sides of the coil, and a pair of electronic switches that are each provided on one end side of the pair of capacitors and that switch whether or not to ground the one end side of the pair of capacitors.

Abstract: A digital phase shifter includes a bend-type connection portion configured to connect a first digital phase shift circuit located at an end of a first digital phase shift circuit group and a second digital phase shift circuit located at an end of a second digital phase shift circuit group and include a third digital phase shift circuit. A capacitor is connected in parallel to at least one of a first connection line of a first connection portion, a first connection line of a second connection portion, a region in a vicinity of a connection position between two digital phase shift circuits constituting a first digital phase circuit group, and a region in a vicinity of a connection position between two adjacent digital phase shift circuits constituting a second digital phase circuit group.

Abstract: A digital phase shift circuit including a first ground conductor connected to one end of each of the two inner lines and the two outer lines, a second ground conductor connected to the other end of each of the two outer lines, and two electronic switches, one thereof being provided between the other end of one of the two inner lines and the second ground conductor, the other thereof being provided between the other end of the other of the two inner lines and the second ground conductor, the first ground conductor being configured of a plurality of conductive layers; and an output circuit including an output signal line connected to the signal line and configured to increase output impedance as compared with that of an input matching load connected to an input stage of the digital phase shift circuit.

Abstract: A digital phase shift circuit includes a signal line extending in a predetermined direction, two inner lines arranged to be separated from the signal line by a predetermined distance at both one side and the other side of the signal line, two outer lines provided at positions farther from the signal line than the inner lines at both the one side and the other side of the signal line, a first ground conductor electrically connected to one ends of the inner lines and the outer lines in the predetermined direction, and a second ground conductor electrically connected to the other ends of the outer lines in the predetermined direction. On both or one of the first ground conductor and the second ground conductor, a region between the outer line and the inner line is formed in a multilayer structure.

Abstract: An object of this invention is to reduce the size of a filter device. Provided is a filter device (1) including: a substrate (11) including a first main surface and a second main surface (111, 112); strip-shaped conductors (12a1 to 12a5) provided to the first main surface (111); and a ground conductor layer (13) provided at least to the second main surface (112), the second main surface (112) having a recessed portion (11ai) provided for each strip-shaped conductor (12ai), the recessed portion (11ai) overlapping the strip-shaped conductor (12ai) in plan view and having a surface covered with the ground conductor layer (13).

Abstract: This invention can reduce the size of a filter device as compared to a conventional filter device having the same coupling degree. A filter device (1) includes: a substrate (11); strip-shaped conductors (12a1 to 12a5); and a ground conductor layer (13), an area facing an area interposed between adjacent ones of the strip-shaped conductors (between 12a1 and 12a2 and between 12a2 and 12a3) having a first recessed portion (recessed portions 11a1 and 11a2) having a surface covered with the ground conductor layer (13).

Abstract: A digital phase shift circuit includes: a signal line extending in a predetermined direction; two inner lines disposed on both one side and another side of the signal line and separated a predetermined distance from the signal line; two outer lines provided at positions which are farther from the signal line than the inner lines on both the one side and the other side; a first grounding conductor electrically connected to one end of each of the inner lines and the outer lines; and a second grounding conductor electrically connected to other ends of the outer lines, and the predetermined distance is set to be less than 10 ?m.

Abstract: A digital phase shifter includes a plurality of digital phase shift circuits connected in cascade and one or more bend-type connection units each configured to make a connection between two digital phase shift circuits of the plurality of digital phase shift circuits. Each of the digital phase shift circuits includes at least a signal line, a pair of inner lines provided at both sides of the signal line, a pair of outer lines provided outside of the inner lines, a first ground conductor connected to one ends of the inner lines and 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 conductor. Each of the digital phase shift circuits is a circuit set in a low-delay mode in which a return current flows through the inner line or a high-delay mode in which a return current flows through the outer line.

Abstract: A digital phase shift circuit includes: a basic phase shift circuit including a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines provided outside of the inner lines, a first grounding conductor connected to one ends of the pair of inner lines and the pair of outer lines, a second grounding conductor connected to the other ends of the pair of outer lines, and a pair of electronic switches provided between the other ends of the pair of inner lines and the second grounding conductor; and an output circuit configured to decrease an output load of the basic phase shift circuit in comparison with an input load thereof.

Abstract: A digital phase shifter includes a first row, a second row arranged to extend in parallel to the first row, and a connection unit electrically connecting one ends of the first and second rows. Each of the first and second rows is configured by connecting a plurality of digital phase shift circuits in cascade, and each digital phase shift circuit includes an outer line and the like. For the digital phase shift circuits adjacent to each other in each of the first and second rows, outer lines adjacent to each other are separated, a first ground conductor and a second ground conductor adjacent to each other are separated, and positional relationships of the outer line to a signal line are reversed. A plurality of the outer lines included in the first row are not adjacent to a plurality of the outer lines included in the second row.

Abstract: A connecting portion includes a first connection line configured to connect a signal line of a first digital phase shift circuit and a signal line of a second digital phase shift circuit, second connection lines configured to connect inner lines of the first digital phase shift circuit and inner lines of the second digital phase shift circuit, ground layers disposed above and below the first connection line and the second connection lines, and first via holes configured to connect at least the second connection lines and the ground layers.

Abstract: To reduce return loss in a transmission line that transmits a high-frequency wave between a pair of main surfaces of a substrate, as compared with the input/output structure included in the filter device disclosed in Patent Literature 1. The transmission line (1) includes: a substrate (10); a coplanar line (20) including a signal line pattern (21) provided on a main surface (11) and a first coplanar pattern (coplanar patterns 22 and 23) provided on the main surface (11); and a two-conductor line (30) including a first through via (31) electrically connected with the signal line pattern (21) and a ground conductor (through vias 32 and 33).

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.

Abstract: A digital phase shift circuit includes: a signal line that extends in a predetermined direction; a first inner line that is separated from a first side of the signal line; a second inner line that is separated from a second side of the signal line; an outer line that is provided at a position which is farther from the signal line than the first inner line or the second inner line on a first side or a second side; a first grounding conductor that is provided at each of first ends of the first inner line, the second inner line, and the outer line; a second grounding conductor that is provided at a second end of the outer line; a first electronic switch that is provided between a second end of the first inner line and the second grounding conductor; and a second electronic switch that is provided between a second end of the second inner line and the second grounding conductor.

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 conductor. The digital phase shift circuits include a multi-row structure constituted by a front row and a rear row, the front row and the rear row are adjacent to each other, and the ground pattern is connected to the front row at one point.

Abstract: A digital phase shift circuit includes: a basic phase shift circuit including a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines provided outside of the inner lines, a first grounding conductor connected to one ends of the pair of inner lines and the pair of outer lines, a second grounding conductor connected to the other ends of the pair of outer lines, and a pair of electronic switches provided between the other ends of the pair of inner lines and the second grounding conductor; and an output circuit configured to decrease an output load of the basic phase shift circuit in comparison with an input load thereof.

Abstract: A digital phase shifter includes a bend-type connection portion configured to connect a first digital phase shift circuit located at an end of a first digital phase shift circuit group and a second digital phase shift circuit located at an end of a second digital phase shift circuit group and include a third digital phase shift circuit. A capacitor is connected in parallel to at least one of a first connection line of a first connection portion, a first connection line of a second connection portion, a region in a vicinity of a connection position between two digital phase shift circuits constituting a first digital phase circuit group, and a region in a vicinity of a connection position between two adjacent digital phase shift circuits constituting a second digital phase circuit group.

Abstract: A digital phase shifter (100) includes a bend-type connection unit (e.g., a connection unit (20-1)) connecting a first digital phase shift circuit (e.g., a digital phase shift circuit (10-10)) located at an end portion of a first digital phase shift circuit group and a second digital phase shift circuit (e.g., a digital phase shift circuit (10-11)) located at an end portion of a second digital phase shift circuit group, and a capacitor (50) is connected in parallel to at least one of a first connection line of the connection unit (20), a position in the vicinity of a connection position between signal lines of two adjacent digital phase shift circuits (10) constituting the first digital phase shift circuit group, and a position in the vicinity of a connection position between signal lines of two adjacent digital phase shift circuits (10) constituting the second digital phase shift circuit group.

Abstract: A digital phase shift circuit including a first ground conductor connected to one end of each of the two inner lines and the two outer lines, a second ground conductor connected to the other end of each of the two outer lines, and two electronic switches, one thereof being provided between the other end of one of the two inner lines and the second ground conductor, the other thereof being provided between the other end of the other of the two inner lines and the second ground conductor, the first ground conductor being configured of a plurality of conductive layers; and an output circuit including an output signal line connected to the signal line and configured to increase output impedance as compared with that of an input matching load connected to an input stage of the digital phase shift circuit.