Roger Argáez Ramírez

Power amplifier and antenna co-design strategy for optimised efficiency

Measurement of small signal parameters of a power amplifier. Analysis of the circuit to find and correct possible errors and technical documentation.

Load-Pull analysis to find the optimum impedance for highest output power and efficiency fulfilling requirements for space applications. Schematic and electromagnetic simulation of passive structures such as bias and matching networks. Generation of layout and selection of components for fabrication. Measurement of small and large signal parameters.

Software development: Realization of programs to extract and process data from documents to create system test cases. Requirements engineering: Definition and documentation of services related to a user interface. Communication with the customer to define technical requirements and service improvement.

Translation of laboratory exercises in the area of electromagnetic compatibility from german to english.

Digital Image Processing: Water level measurement of a tank through line recognition with Raspberry Pi using a camera and MATLAB. Beamforming: Examination of this phenomena using WLAN antennas and USRP-Devices (GNU/Radio).

High Frequency Technology Microwave analoge Front-End Communications Engineering

High Frequency Systems Communication Engineering Integrated Circuits for Communications

Communications systems High Frequency Engineering Analoge and Digital Electronics