Title :
A Method of Band-Pass Amplifier Alignment
Author :
Hupert, J.J. ; Reslock, A.M.
Author_Institution :
A. R. F. Products, Inc., River Forest, Ill.
Abstract :
A method of alignment of band-pass amplifiers is discussed based on the oscilloscopic display of second order harmonic distortion as a function of the carrier frequency departure from the pass-band center. This method of alignment is thought particularly effective for band-pass amplifiers requiring high degree of linearity of transfer phase versus frequency function, such as for example, low-distortion FM intermediate frequency amplifiers.
Keywords :
Circuit testing; Displays; Distortion measurement; Frequency measurement; Frequency modulation; Harmonic distortion; Linearity; Phase distortion; Phase measurement; Pulse amplifiers;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1953.274196
