具有雜訊濾除單元之壓控振盪裝置

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

096130020

專利證號

I 334688

專利獲證名稱

具有雜訊濾除單元之壓控振盪裝置

專利所屬機關 (申請機關)

國立彰化師範大學

獲證日期

2010/12/11

技術說明

一種具有雜訊濾除單元之壓控振盪裝置，包含一調諧單元以及一雜訊濾除單元，兩者串聯連 接。該調諧單元包含一電感電容槽裝置以及一負電導電路。該負電導電路包含一第一電晶體以 及一第二電晶體，利用電流重複使用架構，組合該兩電晶體，產一負電導與該電感電容槽裝置 形成並聯，係用以抵消該電感電容槽裝置之正電導。該雜訊濾除單元包含一濾波電感器以及一 濾波電容器，兩者相互並聯，係用以抑制雜訊，並同時降低二階諧波。 A voltage-controlled oscillator device with noise filter unit is disclosed. The device includes a tuned unit and a noise filter unit, which are series connection. The tuned unit includes an LC tank device and a negative conductance circuit, which are parallel connection. The negative conductance circuit includes a first transistor and a second transistor. The first transistor and the second transistor are combined by using the current-reuse architecture to generate a negative conductance in parallel with the LC tank device. The negative conductance is employed to overcome the positive conductance of the LC tank device. The noise filter unit includes a filter inductor and a filter capacitance, which are parallel connection. The noise filter unit is introduced to suppress the noise of VCO and reduce the second harmonic noise of VCO.

備註

本部(發文號1080004615)同意該校108年1月16日研發字第1070400530號函申請終止維護專利。

連絡單位 (專責單位/部門名稱)

研究發展處

連絡電話

04-7232105轉1858

網址