S-Band 壓控振盪器研究與特性量測

Abstract

摘要 在本文中, 提出一種S-band之壓控振盪器頻模組的製作與特性量測, 量測結果顯示和理論模擬吻合, 這種壓控振盪器頻模組可達10% 的可調範圍 ,6 dBm 輸出功率,至少20 dBc的諧波壓抑,相角雜訊-80 dBc/Hz於頻移100 KHz處,整個電路之大小600*450 平方密爾.

ABSTRUCT In this thesis, an L-band Voltage Control Oscillator (VCO) within the RF modules and the characteristic measurement are presented. This oscillator is designed to satisfy the oscillation conditions at 2.4 GHz. The measured results agree well with the theoretical simulation. This Hetero-Junction Field Effect Transistor (HJFET) VCO has been developed with 10% tuning range at 2.4 GHz, 6-dBm-output power, at least 20-dBc harmonic suppression, and – 80-dBc/Hz phase noise at offset 100 KHz. The size of the VCO is 600 X 450 mil2.