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US 2026/0254079 A1Published application
Digital phase shifter
AssigneeFujikura Ltd.
InventorYusuke Uemichi
Life of this patent
Estimating the term…
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 the connection portion includes a first connection circuit that includes a first element which 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, and a pair of second elements that are connected in parallel on both sides of the first element, the first element is a coil, and the second element is a capacitor.
Claims12
A digital phase shifter, comprising:
- 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,
- wherein the digital phase shift circuit includes at least a signal line, a pair of inner side lines that are provided on both sides of the signal line, a pair of outer side lines that are provided outside the pair of inner side lines, a first ground conductor that is connected to one end of each of the pair of inner side lines and the pair of outer side lines, a second ground conductor that is connected to the other end of each of the pair of outer side lines, and a pair of first electronic switches that are each provided between the other end of each of the pair of inner side lines and the second ground conductor, and is a circuit that is set in a low delay mode in which a return current flows through the pair of inner side lines or a high delay mode in which a return current flows through the pair of outer side lines,
- the connection portion includes
- a first connection circuit that connects the signal line of a first digital phase shift circuit to the signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, and
- a connection line that electrically connects the pair of outer side lines of the first digital phase shift circuit to the pair of outer side lines of the second digital phase shift circuit,
- the first connection circuit includes a first element that is connected in series between the signal line of the first digital phase shift circuit and the signal line of the second digital phase shift circuit, and a pair of second elements that are connected in parallel on both sides of the first element, and
- one element of the first element and the second elements is a coil, and the other element is a capacitor.
6 more elements
A digital phase shifter, comprising:
- 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,
- wherein the digital phase shift circuit includes at least a signal line, a pair of inner side lines that are provided on both sides of the signal line, a pair of outer side lines that are provided outside the pair of inner side lines, a first ground conductor that is connected to one end of each of the pair of inner side lines and the pair of outer side lines, a second ground conductor that is connected to the other end of each of the pair of outer side lines, and a pair of first electronic switches that are each provided between the other end of each of the pair of inner side lines and the second ground conductor, and is a circuit that is set in a low delay mode in which a return current flows through the pair of inner side lines or a high delay mode in which a return current flows through the pair of outer side lines,
- the connection portion includes
- a second connection circuit that connects the signal line of a first digital phase shift circuit to the signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, and
- a connection line that electrically connects the pair of outer side lines of the first digital phase shift circuit to the pair of outer side lines of the second digital phase shift circuit,
- the second connection circuit includes a third element that is connected in parallel between the signal line of the first digital phase shift circuit and the signal line of the second digital phase shift circuit, and a pair of fourth elements that are connected in series on both sides of the third element, and
- one element of the third element and the fourth elements is a coil, and the other element is a capacitor.
6 more elements
Dependencies are inferred from the claim text.