Printed circuit board

A printed circuit board comprising:

• a bendable portion,
• wherein the bendable portion is bendable in a bending direction in plan view and has a first dielectric layer, a signal pattern, a second dielectric layer, a first cloth, and a ground pattern,
• wherein the first dielectric layer has a first main surface,
• wherein the signal pattern is arranged on the first main surface,
• wherein the second dielectric layer has a second main surface and a third main surface opposite to the second main surface, and the second main surface is arranged to face the first main surface,
• wherein the first cloth includes a plurality of first reinforced fibers extending in a first direction in plan view and a plurality of second reinforced fibers extending in a second direction inclined with respect to the first direction in plan view, the plurality of first reinforced fibers and the plurality of second reinforced fibers being knitted together in a cloth form,
• wherein the first cloth is arranged inside the second dielectric layer,
• wherein the ground pattern is arranged on the third main surface, and
• wherein each of the first direction and the second direction is inclined with respect to the bending direction.