Frequency Multiplication Circuit

 

The frequency generator chosen for use, the Agilent 8648B, has a frequency range  of 9kHz to 2GHz.  Since the frequency of operation chosen for the antenna range is 2.4GHz a multiplication circuit is needed in order to get the correct frequency.  In order to multiply the signal a signal generator set at 1.2GHz is used.  This is passed through a cascaded system of an amplifier, a multiplier, an amplifier, and a filter, as shown in the diagram below.

Using Microwave components a frequency multiplication circuit was built and tested and found to operate successfully at 2.4 GHz.  The finished product is shown below.