School of Physics Lecture Demonstration Manual

Wh-1 Polarisation of Microwaves

Published: Wednesday 15 March 2006 - Updated: Thursday 31 March 2011

Aim

To demonstrate the action of a polarising grill.

Apparatus

Diagrams

Click on pictures to enlarge.

Polarisation of Microwaves Diagram

Description

The microwave transmitter is directed at a wire grid composed of parallel wires spaced approximately 1 centimetre apart. With the transmitter vertical,it is found that the signal received is a minimum when the wires are also vertical. No reduction in intensity when the wires are perpendicular to the transmitter.

Safety notes

Electrical safety 

Maintenance 

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