Ghannouchi, FadhelTaghavi, Hosein2015-09-092015-11-202015-09-092015Taghavi, H. (2015). Broadband RF Power Amplifier Design Methodology Using Sequential Harmonic Characterization (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25171http://hdl.handle.net/11023/2447Radio Frequency Power Amplifier (RFPA) amplifies the communication signals to the required power level for transmission. It is the most power consuming stage in a transceiver chain; consequently, any improvement in terms of dissipated power and efficiency of the power amplifier affects the overall power budget of the transmitter. Also, efficient performance of the RF power amplifier over extended ranges of frequency is one of the most challenging areas in implementing multi-band transmitter systems. In this thesis, a design methodology for multi-octave RF power amplifiers is presented based on the proposed sequential harmonic characterization. Compared to the conventional method, a more optimal performance is achieved using the proposed technique. To validate the proposed method, a broadband multi-octave power amplifier prototype was designed and fabricated using a Cree GaN HEMT device that exhibits drain efficiency of 53% - 64% across 0.7 – 4.0 GHz corresponding to the fractional bandwidth of 140%.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.Engineering--Electronics and ElectricalRF Power AmplifierGaN HEMTMulti OctaveIn-band HarmonicsSequential Harmonic CharacterizationSoftware Defined Radiomaster thesis10.11575/PRISM/25171