60 
i altitude of 
GHz. This 
;ood 
so 
;sponds to 
th be am width 
ngle range. 
Fig. 6: Slotted waveguide pair for dual 
polarization. 
SIEMENS 
V 
EST 
H 
ANTENNA 
FEED 
SYSTEM 
Llfrt Llmfltr ATT —АЯшшвЛаг HPA-Nflh few« AmpMtor 
LNA-Low Моём AinpMor LPA-Un—r Prtwc A«^M«r fHS-NwMlW»Uf 
rOA-Fy Oftvor АтрМШ 
Double Channel T/R Module 
Fig. 7: Block diagram of the envisaged GaAs T/R 
modules.