Doppler radar device

Details Doppler radar device Doppler radar device

1979-01-24

1980-10-28

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

333248, 343 5PD, G01S 1356

Patent

active

042310385

ABSTRACT:
A device for indicating whether a target is approaching or receding from a Doppler radar or the like comprising a length of wave-guide having a reflective termination at the end at which microwave energy is introduced into the guide, and two mixer diodes spaced along the guide. The diodes are spaced apart along the guide axis by an odd number of quarter-wavelengths and spaced from the termination by an odd number of eighth-wavelengths. Suitably, the diodes are positioned so as to be loosely-coupled to signals within the guide, thereby rendering the selection of suitable diodes much less critical.

REFERENCES:
patent: 3546633 (1970-12-01), Peppiatt
patent: 3980974 (1976-09-01), Yamamoto et al.

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