LOADl.n USPS .l\n COMPENS.ITIXG Xr.TlfOKKS .140 



KiR. 17 sliows a network r.illfd a susct'ptancf-rDinpensator, for a 

 non-dissipativr loaded line terminating at ff'-load. When propor- 

 tionetl in accordanie with the design-formulas there given, this net- 

 work possesses the following two-fold property with reference to the 

 ff'-load characteristic suscei>tance of the loaded line: When <t' has 

 any fixed value between and 1 2, the network exactly simulates 

 the a'-load susceptance. and exactly neutralizes the (1— (r')-load 

 susccptance; or, what is equivalent, when a' has any fixed value 

 between 1 2 and 1, the network exactly neutralizes the a'-load sus- 

 ceptance and exactly simulates the (1— <T')-load susceptance. 



It may be noted that the resonant frec|uency/r of the compensators 

 in Figs. 10 and 17 is never less than the resonant frequency /, of the 

 loaded line; for when <t = ct' the two types of compensators ha\e the 

 same value of /„ and 



fr/fc=l/2V^{r^. 



This ratio has a minimum value of unit\-. when (r= 12; and becomes 

 infinite when a = and when a=l. It is ecjual to 1.2.5 when c = 0.2 

 and when <t = 0.8. 



The compensators in Figs. 10 and 17 are e\idently in\cr.se networks; 

 the theoretical principles underlying them are outlined together in 

 Appendix C. (See also Patent \o. 124.3(Xi6 and No. 1475997, re- 

 spectively.) 



With (T and a' each in the neighborhood of 0.2 or of 0.8, the tr-section 

 characteristic reactance and the a'-load characteristic conductance of 

 a non-dissipative loaded line are simulated pretty well by the con- 

 stant resistance Ri and the constant conductance d' of Figs. 12 and 

 13, respectively, as pointed out in Appendix B. 





„C4 



When O-0.l4or0.86. 



D . i/TF • 1 1 "IS" ^' 014 or 066. 



u-0.1201: cT T' I ci-Qi2oc 



C4-I-28C n^ ? 114-128 C 



Fig. 18 — Ri'sistani-e- Simulator for a Kig. 19 — COnductancc-SiniuIator for a 



Loaded Line Terminating at <r-Section, Loaded Line Terminating at (x'-load, 



with a atxjut 0.14 or about 0.86 with a' about 0.14 or al)Out 0.86 



Simulation of the a-section resistance and of the a'-load conductance 

 can be accomplished over a substantially wider frecjuency-range than 

 in the foregoing paragra{)h, by means of the networks of Figs. 18^ and 

 19, respectively; for them the best value of a and of a' is about 0.14. 



