Power amplifier/low noise amplifier RF switch

2000 ◽  
Vol 36 (24) ◽  
pp. 1983 ◽  
Author(s):  
Tze Kiu Lee ◽  
Wing Shing Chan ◽  
T.Y.M. Siu
2019 ◽  
Vol 8 (2) ◽  
pp. 1-9
Author(s):  
O. Memioglu ◽  
O. Kazan ◽  
A. Karakuzulu ◽  
I. Turan ◽  
A. Gundel ◽  
...  

This paper describes X-Band power amplifier (PA), low noise amplifier (LNA) and switches that can be used in transmit/receive modules which are developed with GaN technology. For Transmit chain two 25 W high power amplifiers that are tuned between 8-10 GHz and 10-12 GHz bands are designed. A low noise amplifier with 2 W survivability and less than 2dB noise figure is designed for receive chain Furthermore, an RF switch that is capable of withstanding 25 W RF power is developed for the selection of transmit or receive chains. Measurement results show that both power amplifiers produce 25 W of power. Low noise amplifier has more than 20 dB small signal gain with less than 2 dB noise figure. RF switch has 50 dB of isolation with less than 1 dB insertion loss.


Author(s):  
V.I. Shalomanov ◽  
D.A. Sarapultsev ◽  
M.R. Sizov

The measuring equipment influences the operation of solid-state power amplifier by inducing parasitic components in the operating frequency range. Operation of differential amplifier and a low noise amplifier were studied. The measuring equipment for these devices was developed and the issue stated was experimentally solved.


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