新一代6ghz l800信道/ 78mbits无线电系统

T. Furuya, K. Kinoshita, Y. Kitahara, H. Taguchi, Y. Ito
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引用次数: 0

摘要

研制了新一代全固态外差发射接收机,该接收机安装了输出功率最大为5w的高功率场效应晶体管放大器和接收噪声系数为3db的低噪声GaAs场效应晶体管,工作于6ghz频段。空间分集接收中特别采用的中频相位合成器是在衰落区传输高达1800通道FDM信号或78 mbit /s 8相PSK数字信号时,通过高速无止回电子移相器将两个中频信号进行无碰撞合并。
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New Generation 6-GHz l800 Channel/78 Mbits Radio System
A new generation of the all solid-state heterodyne transmitter receiver fitted with a high power GaAs FET (Field Effect Transistor) amplifier with the output power of maximum 5-W and low noise GaAs FET with the receiver noise figure of 3-dB for operation in the 6-GHz band has been developed. And especially adopted for space diversity reception is an IF phase combiner for hitless combining two IF signals by high speed endless electronic phase shifter in the tranmission of up to 1800 channel FDM signals or 78 Mbits/s 8-phase PSK digital signals in a fading area.
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