Abstract
An experimental apparatus to observe the standing electromagnetic waves, operated in the TE_<10> mode at 10.5GHz, has been constructed using a 12μm thick aluminum foil waveguide as well as a conventional 3mm brass one. Standing wave voltages are picked using a probe made from coaxial cable, a voltmeter and a travelling microscope. Guide-wavelength for both the aluminum foil and the 3mm brass waveguides is determined to be 3.5cm. The frequency of the input waves can be estimated from the guide-wave length within the experimental error 2.8%. The skin depth effect of the electromagnetic waves can also be demonstrated using this aluminum foil waveguide apparatus. There is a possibility of using such waveguides to study the properties of microwaves in high school or undergraduate physics.
