DEL.l y K<Jl AUZA7/0.\ ()/■ U.IRR/KR CI RL I / TS 



1H5 



l)()lcs. This approximation ignores the ripfiles caused by the granularity of 

 tlie filament spacings, but it docs permit the average delay to be determined 

 in a particularly simple manner. The field intensity at any jioint, w, 



-U) 



Ca) - PLANE 



DELAY 



+ CO 



Fig. 4 — Delay-frequency characteristic of the network of Fig. 2. 



con 



-e © e e o &- 



-^* X M X X X- 



- P 



a> - PLANE 



OOn 



-t*■a-^a-' 



yri 



-e e & © — — o o- 



1T 



-ft H M X X- 



+ P 



Fig. 5— Zeros and poles of a complex delay network liased on the condenser-plate 

 design. 



resulting from the condenser charge is proportional to the angle subtended 

 by the plates at that frecjuency. It is also proportional to the charge per 

 unit length of plate or, in other words, to the density, 1/c, of the filament 

 spacings. The geometry is illustrated in Fig. 6, where 2(r + d) is the 



