 技術摘要 / Our Technology： |
一種具有可變終端電阻之分散式放大器，其係具有一訊號放大單元、一第一偏壓電路、一第二偏壓電路、一可變終端電阻、一射頻訊號輸入端以及一射頻訊號輸出端。該訊號放大單元係用以進行射頻訊號輸入端之訊號放大；該第一偏壓電路係用以提供一直流偏壓訊號；該第二偏壓電路係用以提供一直流偏壓訊號；該可變終端電阻係可調變阻抗值，用以提供分散式放大器在不同操作情形下，達到與輸出阻抗相匹配；該射頻訊號輸入端係用以提供射頻訊號之輸入；以及該射頻訊號輸出端係用以提供射頻訊號之輸出。其中該分散式放大器可用於將該射頻訊號輸入端所輸入之射頻訊號經過增益之調節後，自該射頻訊號輸出端輸出，並實現可補償負載不匹配效應，而大幅改進增益平坦度，以增加增益之調整範圍。
A distributed amplifier is disclosed herein, which includes a signal amplification unit amplifying a RF input signal fed into the RF signal, a first biasing circuit providing a direct current (DC) bias signal, a second biasing circuit providing a DC bias signal, the variable terminal resistance providing an adjustable resistance, a RF signal input terminal provided for input of the RF input signal and a RF signal output terminal for output of a RF output signal. The output RF signal from the distributed amplifier is obtained from a gained version of the input RF signal. Since a load mismatch issue is compensated, a gain flatness issue is considerably improved and thus a gain-adjustable range is increased with respect to the distributed amplifier.
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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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