✦ LIBER ✦

A piezoelectric transducer-tuned microstrip-ring resonator oscillator operating at the second resonant mode of the ring resonator

✍ Scribed by Lung-Hwa Hsieh; Kai Chang

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 125 KB
Volume: 15
Category: Article
ISSN: 1096-4290
DOI: 10.1002/mmce.20073

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✦ Synopsis

A microstrip open-loop resonator oscillator operating at even modes is proposed. The even mode of the ring circuit can be predicted by using a simple transmission-line model. The new oscillator has a characteristic similar to that of a push-push oscillator. In addition, in comparison with the push-push oscillator, the new oscillator with one active device can minimize the size and lower the cost. A voltage-controlled piezoelectric transducer (PET) is used to vary the resonant frequencies of the ring resonator, which in turn tunes the oscillator with a good tuning range of 4.9% at around 12.1 GHz. This tuned oscillator should have many applications in wireless systems.

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