| Summary: | To accomplish the project in designing a Self Oscillating FET Mixer (SOM), the
main problem faced is to obtain the exact Intermediate Frequency (IF) at the desired
frequency after implement the simulated circuit into printed circuit board (PCB).
Besides of that, conversion gain obtains from the circuit after implemented into printed
circuit board is less than the value obtains from simulation result. This project is done
by design and simulates the circuit using HP-ADS (HP-Advanced Design system). After
desired simulation result is obtained, the simulation circuit is implemented into FR4
type of PCB. Then, conversion gain, port-to-port isolation, and linearity issue is
analyzed using spectrum analyzer. This result is then compared with the result from
simulation using ADS, all problems arise from the design and analyzation will be
considered and the inaccurate result from measurement will be discussed. The SOM
designed is down conversion system. This circuit is designed using FR4 PCB board and
surface mount component that helps in small in size and cost effective that applicable
with the practical usage. Therefore, the design of this mixer and the analyzation can be
make without any intricacy. Hopefully the design of this self oscillating FET mixer
(SOM) can be continued and improved for the usage in variety of application in the
future.
|
|---|