Noise and power optimization of a MMIC quasi-circulator
Noise and power optimization of a MMIC quasi-circulator
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DOI：
10.1109/22.622924
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发表时间：
1997-09-01
影响因子：
4.3
通讯作者：
Jallet, L
中科院分区：
文献类型：
--
作者：
Gasmi, A;Huyart, B;Jallet, L
本文首先总结了各种有源环行器和准环行器的功率和噪声限制。然后介绍了一种适用于发射/接收（T/R）模块的窄频带准环行器模块的设计和实测性能，它的设计实现了一个有源功率分配器和一个有源功率合成器，给出了该电路的最小噪声系数的计算方法，在4GHz时，该器件的噪声系数为5.5dB，输出功率为18 dBm，接收和发射路径的相关增益分别为4和7.6dB，对于发射路径，三阶截点（IP 3）等于25.6 dBm。
This paper first sums up the power and noise limits of various types of active circulators and quasi-circulators. It then presents the design and measured performances of a narrow-hand quasi-circulator module tailored for use in a transmit/receive (T/R) module, Its design implements an active power divider and a combiner, A method to calculate the minimum noise figure is presented for this circuit, At 4 GHz, the device demonstrates a noise figure of 5.5 dB and an output power of 18 dBm with associated gains of 4 and 7,6 dB for the receive and transmit path, respectively, The third-order intercept point (IP3) is equal to 25.6 dBm for the transmit path.