voltage controlled tuning 中文意思是什麼
voltage controlled tuning
解釋
電壓控制調整諧-
On account of the low q - factor and small tuning range of the p - n junction varactor, the inversion - mode mos varactor is used in the lc voltage controlled oscillator in this thesis. the simulation results show that the designed lc voltage controlled oscillator has 15 % tuning range
3 .由於lc壓控振蕩器中的pn結變容管品質因數低、調諧范圍小，本次設計的lc壓控振蕩器採用了強反型mos變容管，模擬結果表明，所設計的lc壓控振蕩器具有15 %調諧范圍。 -
This thesis presents the theoretical analysis about the design of the tunable antennas with multilayered structure theory and microstrip antenna ' s analytical methods. and it improves three typical kinds of antennas, and uses the voltage controlled ferroelectric materials. we analyze the tuning features of the antenna by simulation under the condition of different permittivity of the ferroelectric materials, and discuss the feasibility of improvement from microstrip antenna to tunable antenna
本文結合多層介質理論及微帶天線的分析方法對可調諧天線進行理論分析，並對矩形貼片天線、圓形貼片天線、微帶振子天線三種典型的微帶天線結構進行改進，引入壓控鐵電薄膜材料，模擬分析在改變鐵電薄膜介電常數條件下天線的調諧特性，討論微帶天線改進為可調諧天線的可行性。 -
The voltage - controlled oscillator and the dual - modulus prescaler are the most crucial blocks in the pll frequency synthesizer. two kinds of voltage - controlled oscillator ( the quadrature voltage - controlled oscillator based on symmetrical spiral inductors and differential varactors, and the voltage - controlled oscillator with wide tuning range based on mos varactors ) and two kinds of prescaler ( the prescaler using phase - switching techniques, and the prescaler using dynamic circuit techniques ) are proposed. then, the complete pll frequency synthesizer is implemented, in which
壓控振蕩器和雙模預分頻器是鎖相環型頻率合成器中最關鍵的兩個模塊，本論文分別實現了兩種類型的壓控振蕩器（採用對稱螺旋型電感和差分二極體型容抗管的正交壓控振蕩器和使用mos型容抗管的大調諧范圍壓控振蕩器）和兩種類型的雙模預分頻器（使用相位開關技術的雙模預分頻器和使用動態電路技術的雙模預分頻器） 。
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