Abstract
AlxGa1-xN sample with x=0.36 was epitaxially grown on sapphire by MOCVD. SAW velocity of 5420 m/s and TCF (temperature coefficient of frequency) of -51.20 ppm/°C were measured from the SAW devices fabricated on the AlxGa1-xN sample, when kh value was 0.078, at temperatures between -30 °C and 60 °C. Electromechanical coupling coefficient was ranged from 1.26 % to 2.22 %. The fabricated SAW filter have shown a good device performance with insertion loss of -33.853 dB and side lobe attenuation of 20 dB.
Original language | English |
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Pages (from-to) | 51-56 |
Number of pages | 6 |
Journal | Materials Research Society Symposium Proceedings |
Volume | 720 |
DOIs | |
State | Published - 2002 |
Event | Materials Issues for Tunable RF and Microwave Devices III - San Francisco, CA, United States Duration: 2 Apr 2002 → 3 Apr 2002 |