Signal combining apparatus

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

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307 3, 323 10, G01S 320

Patent

active

040500721

ABSTRACT:
A signal combiner for combining two out-of-phase signals wherein one of these signals increases in amplitude over a range of frequencies at a rate of 6dB per octave. The resultant output signal obtained from the combiner appears to be that of two signals which are in-phase and have a constant ratio of amplitude therebetween. A specific application for this signal combiner is to combine the signals obtained from a sense antenna and from a loop antenna in an automatic direction finding device.

REFERENCES:
patent: 2327641 (1943-08-01), Hooven
IEEE Transactions on Microwave Theory and Techniques, May, 1973, vol. MTT-21, pp. 355-357.

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