| Summary: | 碩士 === 國立中央大學 === 電機工程研究所 === 90 === abstract
With the current expansion of the wireless communication industry, system integration has become a major trend to meet challenges such as high performance, low cost, light weight, and small size.
In this paper, we use InGaP/GaAs HBTs device to design a voltage control oscillator. Althought there is no trivial solution to meet all requirements; however, a combination of MIC and thin-film technology may be a promising approach to realize microwave circuits, where the passive components are fabricated by a clean-room thin-film process. We present the design, implementation and measurement of a MIC VCO. The measurement results of the MIC VCO are output frequency = 5.155 GHz, output power = 6.31 dBm. In addition, we also designed 5.4 GHz and 5.2 GHz MMIC VCOs.
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