Microwave Amplifiers Design
Kijanga, Peter (2014)
Metropolia Ammattikorkeakoulu
2014
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi:amk-201405066150
http://urn.fi/URN:NBN:fi:amk-201405066150
Tiivistelmä
The purpose of this project was to design and construct amplifiers operating at microwave frequency of 1 GHz. Two amplifiers were to be constructed, transistor based amplifier with external matching circuits and Monolithic Microwave Integrated Circuit (MMIC) amplifier.
First step in this project was to select radio frequency transistor suitable for specified design targets. Design process was done by AWR microwave office software tool. The AWR microwave office was used to check the stability of amplifier, select operating point and design schematic and layout of the amplifier. The layout files generated by AWR micro-wave office were fed to the milling machine for the production of the actual amplifier circuit boards. The boards were finally tested using the network analyzer.
The results of the project were close to the specified design targets and it can be considered that the objective of the project was achieved. Both amplifiers give reasonable ampli-fications. Also, secondary goal of the project which was to familiarize using radio frequency equipment such as network analyzer was accomplished.
First step in this project was to select radio frequency transistor suitable for specified design targets. Design process was done by AWR microwave office software tool. The AWR microwave office was used to check the stability of amplifier, select operating point and design schematic and layout of the amplifier. The layout files generated by AWR micro-wave office were fed to the milling machine for the production of the actual amplifier circuit boards. The boards were finally tested using the network analyzer.
The results of the project were close to the specified design targets and it can be considered that the objective of the project was achieved. Both amplifiers give reasonable ampli-fications. Also, secondary goal of the project which was to familiarize using radio frequency equipment such as network analyzer was accomplished.