High frequency crystal monolithic filter with high power level in airborne application

Radar and communications systems require frequency references with ultimate noise performance with the aim of improving the sensitivity of the advanced devices. In order to achieve a very low noise floor combined with a high level output, AR-Electronique has studied and developed a new filter generation. In this paper, we present a specific filter design using monolithic crystal resonators technology with a special cut angle and innovative metallization, allowing high input power. Combined with an oscillator, a very low phase noise floor is achieved at the output.