Accession Number : AD0284444

Title :   NEW METHODS FOR MEASURING SPURIOUS EMISSIONS

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Personal Author(s) : HINCKELMANN,O. ; SLEVEN,R.

Report Date : MAY 1962

Pagination or Media Count : 1

Abstract : The design of all components for the fully instrumented, fixed-probe, multimode measurement equipment was completed. The four-band fixedprobe section was calibrated over the 3 to 10 gc range, and the motor-driven trombone line stretcher and Band I commutator were tested. The H-plane bends in the rombone line stretcher introduce a maxi um dominant-mode reflection loss of only 0.02 db. Because of the measured peakto-peak variation of 1 db in the maximum tr nsmission through each commutator segment, the calcula ed error is 0.01 db for dominant-mode propagation and 0.07 db for multimode propagation. Study also indicated that only slight modifications in the present fixed-probe equipment will be necessary to make spurious-emission power measurement in the presence of a highly mismatched antenna. (Author)

Descriptors :   *PROBES (ELECTROMAGNETIC), *RADAR TRANSMITTERS, *RADIO TRANSMITTERS, *RADIOFREQUENCY POWER, CALIBRATION, ELECTRONIC COMMUTATORS, ERRORS, IMPEDANCE MATCHING, MATHEMATICAL ANALYSIS, MICROWAVES, NOISE (RADIO), TEST EQUIPMENT, TEST METHODS, WAVEGUIDES

Distribution Statement : APPROVED FOR PUBLIC RELEASE