Standard rectangular waveguide with RF port input transition

A waveguide configured to transition between a normal use mode and a measurement mode, the waveguide comprising:

• a tubular rectangular body having openings formed at opposite sides thereof, each of the openings having a flange therearound;
• multiple isolator ports formed at first predetermined intervals in a first wall of the rectangular body, wherein each isolator port is switchable between open and closed states to allow an RF isolator to be selectively coupled thereto, wherein an isolator port cover is coupled to a corresponding isolator port of the isolator ports when the corresponding isolator port is at the closed state, and wherein the isolator port cover is removed when the corresponding isolator port is at the open state;
• multiple impedance matching ports formed at second predetermined intervals in a second wall of the rectangular body opposite the first wall, wherein each impedance matching port is switchable between open and closed states to allow an RF impedance matcher to be selectively coupled thereto, wherein an impedance matching port cover is coupled to a corresponding impedance matching port of the impedance matching ports when the corresponding impedance matching port is at the closed state, and wherein the impedance matching port cover is removed when the corresponding impedance matching port is at the open state;
• and
• a radiator port formed at a center of the first wall of the rectangular body, wherein the radiator port is switchable between open and closed states to allow an RF radiator to be selectively coupled thereto, wherein the radiator port is fitted to the RF radiator when the radiator port is at the open state, and wherein the radiator port is blocked by a stopper when the radiator port is at the closed state,
• wherein the waveguide is operable in the measurement mode for measuring RF characteristics of the rectangular body transmitting RF waves therein.