Octave-tunable miniature RF resonators

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...

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Bibliographic Details
Published in:	IEEE microwave and wireless components letters 2005-11, Vol.15 (11), p.793-795
Main Authors:	White, J.R., White, C.J., Slocum, A.H.
Format:	Article
Language:	eng
Subjects:	Applied sciences Bandwidth Circuit properties Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Insertion loss Magnetic separation Micro- and nanoelectromechanical devices (mems/nems) Microelectromechanical system (MEMS) Oscillators, resonators, synthetizers Radio frequency Resonator filters resonators Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Superconducting filters Superconducting magnets Tunable circuits and devices Tuning voltage controllable oscillators (VCOs) Voltage-controlled oscillators
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Summary:	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.
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588