Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-05-17
1977-09-20
Tubbesing, T.H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 942
Patent
active
040500713
ABSTRACT:
A doppler speed sensor for a ground vehicle wherein errors due to perpendicular velocity and vehicle tilt relative to the ground surface are substantially eliminated by utilization of a first receiving antenna having a radiation pattern disposed facing forwardly and covering a portion of the ground surface, and a second receiving antenna having a radiation pattern disposed facing rearwardly and overlapping the first antenna radiation pattern on the ground surface portion.
REFERENCES:
patent: 3833906 (1974-09-01), Augustine
patent: 3859660 (1975-01-01), Augustine et al.
Christoffersen H.
Lazar Joseph D.
RCA Corporation
Smiley Raymond E.
Tubbesing T.H.
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