 技術摘要 / Our Technology： |
一種電感切換式雙頻帶電壓控制振盪器電路，其可整合至一超寬頻之電路系統，用來提供一電壓控制式之雙頻帶振盪信號輸出功能；且其特點在於採用一切換式電感性電路架構來取代先前技術之切換式電容性電路架構，並將其整合至一固定式之電容性電路架構來構成一可變換電感值之諧振電路架構，以藉此來提供一雙頻帶之振盪信號輸出功能；並進而採用一電流鏡電路架構使其在不同之頻帶操作模式下均可保持諧振電路架構的品質因數，以及採用一緩衝級電路架構來提供低耗電量之操作特性。此些特點可令此電壓控制振盪器電路於操作時具有較低之耗電量、較低之相位雜訊、以及較大之調諧範圍。
An inductance-switchable dual-band voltage-controlled oscillation circuit is proposed, which is designed for integration to a high-frequency signal processing system, such as an ultra-wideband (UWB) circuit system, for providing a dual-band voltage-controlled oscillating signal generating function. The proposed voltage-controlled oscillation circuit is characterized by the use of a switchable inductance circuit architecture in lieu of a switchable capacitive circuit architecture for integration to a fixed-inductance circuit architecture to constitute a variable-inductance LC tuning circuit architecture that allows the provision of a dual-band oscillating signal generating function. Further, a current mirror circuit module is used to maintain the quality factor of the LC tuning circuit in both operating modes; a buffer-stage circuit architecture is used to achieve low power consumption, low phase noise, and broad tuning range.
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| 專利簡述 / Intellectual Properties： |
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聯繫方式 / Contact： |
| 臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU |
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| Email：ordiac@ntu.edu.tw |
電話/Tel：02-3366-9945 |
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專利行銷平台