I need a circuit and components to make a 2.4GHz MICROWAVE source which can be used with a spectrum analyzer for testing and calibration purposes.
You could look at PLL's at analog devices product line,
http://www.analog.com/en/rfif-components/pll-synthesizersvcos/adf4351/products/product.html
or VCO's
http://www.analog.com/en/press-release/10_29_12_ADI_Expands_its_Microwave_IC_Product/press.html
Quite of few of the devices come with reference circuits and there will be hobby projects that can help guide you. Most of the components would require some form of serial communication, but there can be some which have logic input for control of the output frequencies.
a look at Miniciruits.com would help as well.
I have salvaged a number of microwave ovens to get 2.4 GHz sources. Most of the ovens fail due to fuses blown and the other comnponents are still viable. Just take the overn apart, making sure that all capacitors are discharged. The circuit components can be removed without disconnecting them. Anything that you have to disconnect, label for future reassembly. There are several safety switches that will need to be removed from the circuit. The circuit diagrams are sometimes in the oven. The circuits are quite simple with a diode, capacitor, transformeer with high voltage terminals and filament heater terminals and some safety switches. You will need to salvage the waveguide that the magnetron feeds into or fabricate a replacement to be able to direct the microwaves. The powere can be adjusted by varying the input voltage to the high voltage windings using a variac.
I hope this helps as it is the most economical way to get 2.4 GHz power.
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