Title :
Octave-tunable miniature RF resonators
Author :
White, James R. ; White, Christopher J. ; Slocum, Alexander H.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
The development and testing of a miniaturized, high-Q, broadly tunable resonator is described. An exemplary device, with a center frequency that is continuously tunable from 1.2 to 2.6GHz, was tested in detail. Experimental results demonstrated a resonator Q of up to 380, and typical insertion loss of -1.9dB for a 25MHz 3-dB bandwidth. These resonators have been used to stabilize a broadly-tunable oscillator with phase noise of -132dBc/Hz at 100-kHz offset, with a center frequency tunable from 1.2-2.6GHz, and a tuning speed of 1GHz/ms.
Keywords :
UHF devices; cavity resonators; circuit tuning; micromechanical resonators; -1.9 dB; 1.6 to 2.6 GHz; 100 kHz; 25 MHz; UHF devices; cavity resonators; micromechanical resonators; octave-tunable miniature RF resonators; voltage controlled oscillators; Bandwidth; Insertion loss; Magnetic separation; Radio frequency; Resonator filters; Superconducting filters; Superconducting magnets; Tunable circuits and devices; Tuning; Voltage-controlled oscillators; Microelectromechanical system (MEMS); resonators; voltage controllable oscillators (VCOs);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2005.859012
