For all computations, the CARAMBA I configuration was assumed to be 

 that of the rings in the cylindrical array. Thus the radius = 13.2 wavelengths, 

 and 128 elements were assumed equally spaced on each ring, with 32 elements 

 active. The amplitude distribution / c (a ) is one computed for the lens using a 

 1-3-3-1 input distribution. It is shown below with the 32-element Taylor distribu- 

 tion assumed for the distribution 7 e (Z ). The spacing of the rings was 

 0.524 wavelength. 



Element or 



l e (Z q ) 



' C <V 



ting Number 







1 



1.000 



.9964 



2 



.990 



.9682 



3 



.970 



.9139 



4 



.935 



.8373 



5 



.885 



.7439 



6 



.822 



.6397 



7 



.755 



.5316 



8 



.676 



.4258 



9 



.597 



.3278 



10 



.513 



.2419 



11 



.437 



.1708 



12 



.351 



.1154 



13 



.288 



.0752 



14 



.233 



.0479 



15 



.200 



.0303 



16 



.192 



.0185 



For the element pattern G(<p - a 0), an approximation to measured patterns 



was chosen. Including the phase due the location on the ring, it is 



G(<f - a ,6) = cos9 exp 1.9 cos6 cos (9 - a) + j2irp cos© cos (6 - a) 



Note that this expression gives (apart from the cos9 outside of the exponential) 

 an omnidirectional pattern at 8 = 90 degrees, as must be the case. 



53 



