A flexible waveguide is a conduit for guiding electromagnetic waves, characterized by its unique ability to bend and twist while maintaining signal integrity. Unlike traditional rigid waveguides, which are fixed in shape, flexible waveguides utilize helically wound silver-coated brass strips surrounded by a durable neoprene sleeve, allowing for adaptable transmission paths. This flexibility enables them to navigate through tight spaces and conform to complex installations, making them indispensable in applications where rigid waveguides may be impractical.