Digital phase shift circuit and digital phase shifter

A digital phase shift circuit comprising:

• 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 the first side or the second side;
• a first grounding conductor that is provided at each of first end sides 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 connection conductor that connects the first end of the first inner line and the first grounding conductor;
• a second connection conductor that connects the first end of the second inner line and the first grounding conductor;
• a third connection conductor that connects the first end of the outer line and the first grounding conductor;
• a fourth connection conductor that connects the second end of the outer line and the second grounding conductor;
• a first electronic switch that disconnectably connects the second end of the first inner line and the second grounding conductor;
• and
• a second electronic switch that disconnectably connects the second end of the second inner line and the second grounding conductor.