High-Q microwave acoustic resonators and filters

The authors present recent experimental and modeling results for high-Q microwave acoustic resonators and filters for use in oscillators and other frequency control applications. Overmoded resonators have exhibited an FQ product greater than 1*10/sup 14/ Hz (e.g., Q=68,000 at 1.6 GHz) with a strong...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 1993-12, Vol.41 (12), p.2139-2146
Hauptverfasser:	Lakin, K.M., Kline, G.R., McCarron, K.T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Circuit properties Delay lines Electric, optical and optoelectronic circuits Electrodes Electronics Exact sciences and technology Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwave devices Microwave filters Microwave oscillators Phase noise Piezoelectric films Resonator filters Substrates
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Zusammenfassung:	The authors present recent experimental and modeling results for high-Q microwave acoustic resonators and filters for use in oscillators and other frequency control applications. Overmoded resonators have exhibited an FQ product greater than 1*10/sup 14/ Hz (e.g., Q=68,000 at 1.6 GHz) with a strong inductive response suitable for one-port and two-port oscillator feedback circuits. Ladder filters fabricated with overmoded resonators have loaded Qs greater than 40,000 with 76-kHz bandwidth at 1.6 GHz. Aluminum nitride films were used for transduction on Z-cut sapphire and lithium niobate substrates.< >
ISSN:	0018-9480 1557-9670
DOI:	10.1109/22.260698