Miniaturized Reconfigurable Frequency Synthesizer Module For MiniSAR Airborne Mission

This paper presents the design and development of miniaturized reconfigurable frequency synthesizer module for frequency generation. The proposed FS module is based on indirect frequency synthesis technique and uses PLL chip for generation of two independent coherent signals at 750MHz and 4800MHz. To achieve low phase noise, temperature-controlled crystal oscillator is used as reference and PLL output is reconfigurable based on requirement. The miniaturized FS generic module is realized on multilayer FR4 board with available commercial off the shelf components in size of 86mmx88mmx1.6mm. The desired performance of module is also achieved over -15°C to +55 °C temperature range.