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http://dx.doi.org/10.6109/jkiice.2010.14.3.541

Design and Fabrication of the Push-push Dielectric Resonator Oscillator using a LTCC  

Ryu, Keun-Kwan (국립한밭대학교 전자공학과)
Oh, Eel-Deok (국립한밭대학교 전자공학과)
Kim, Sung-Chan (국립한밭대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.14, no.3, 2010 , pp. 541-546 More about this Journal
Abstract
The push-push DRO(dielectric resonator oscillator) using a multi-layer structure of LTCC(low temperature co-fired ceramic) fabrication is designed. After the single DRO of series feedback type in the center frequency of 8GHz is designed, the push-push DRO in the center frequency of 16GHz including the Wilkinson power combiner is designed. The bias circuit affecting the size of oscillator are embedded in the intermediate layer of the LTCC multi-layer substrate. As a result, the large reduction in the size of VCO is obtained compared to the general oscillator on the single layer substrate. Experimental results show that the fundamental and third harmonics suppression are above 15dBc and 25dBc, respectively, and phase noise characteristics of the push-push DRO presents performance of -102dBc/Hz@100KHz and -128dBc/Hz@1MHz offset frequencies from carrier.
Keywords
DRO; VCO; Push-push; LTCC;
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