A Film Bulk Acoustic Resonator (FBAR) L Band Low Noise Oscillator for Digital Communications

This paper describes the design and measured performance of a low-noise L band oscillator based on Agilent's Film Bulk Acoustic Resonator (FBAR) for applications in digital communication systems. This experimental oscillator demonstrated at 1951 MHz with a phase noise of - 115 dBc/Hz at 10KHz from the carrier represents the first example of a low noise Si-Bipolar FBAR oscillator.