Communications: directive radio wave systems and devices (e.g. – Determining velocity
Patent
1998-07-21
2000-07-18
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Determining velocity
342175, G01S 1353
Patent
active
06091355&
ABSTRACT:
A Doppler radar speed measuring module, that is self-contained and handheld, is fabricated on a multilayer PCB (printed circuit board) containing at least one antenna array and electronic circuitry. In one embodiment the antenna array is located on a top side and electronic circuitry is located on a bottom side opposite the antenna, with a ground plane layer sandwiched between the antenna array and the circuitry. The electronic circuitry includes a dielectric resonator stabilized oscillator, a microwave amplifier, a microwave mixer, a microwave coupler, voltage regulators, mechanical switches, and a display to indicate the measured speed of a moving target. The oscillator generates a very stable microwave signal which is split with part of the signal fed to a mixer and part fed to a transmit antenna. In one embodiment plated through vias electrically connect the two sides together. A transmitted signal reflects off of a moving target and is received by a receive antenna. The receive signal is electrically conducted from the receive antenna to the opposite side by plated through vias and is mixed with the oscillator signal to produce a low frequency Doppler beat signal. The Doppler signal is amplified, filtered and digitized by the A/D. A microcontroller is programmed to determine the moving target speed from the Doppler signal frequency, and drive a display to show the result.
REFERENCES:
patent: 2626986 (1953-01-01), MacNichol, Jr. et al.
patent: 2641458 (1953-06-01), Gilvarry et al.
patent: 2647032 (1953-07-01), Holiday et al.
patent: 3567951 (1971-03-01), Montgomery, Jr. et al.
patent: 3907429 (1975-09-01), Kuhn et al.
patent: 4028699 (1977-06-01), Stevens
patent: 4128761 (1978-12-01), Oehler
patent: 4150825 (1979-04-01), Wilson
patent: 4160942 (1979-07-01), Lynch et al.
patent: 4180726 (1979-12-01), DeCrescent
patent: 4405925 (1983-09-01), Lindner et al.
patent: 4515365 (1985-05-01), Horikoshi et al.
patent: 4545576 (1985-10-01), Harris
patent: 4563005 (1986-01-01), Hand et al.
patent: 4577863 (1986-03-01), Ito et al.
patent: 4583733 (1986-04-01), Ito et al.
patent: 4592001 (1986-05-01), Willard
patent: 4731611 (1988-03-01), Muller et al.
patent: 4736454 (1988-04-01), Hirsch
patent: 4770527 (1988-09-01), Park
patent: 4908615 (1990-03-01), Bayraktaroglu
patent: 4931799 (1990-06-01), Wen et al.
patent: 4967201 (1990-10-01), Rich
patent: 5059927 (1991-10-01), Cohen
patent: 5069450 (1991-12-01), Pyle
patent: 5262783 (1993-11-01), Pott et al.
patent: 5333855 (1994-08-01), Silin et al.
patent: 5365427 (1994-11-01), Soignet et al.
patent: 5393974 (1995-02-01), Jee
patent: 5401016 (1995-03-01), Heglund et al.
patent: 5418359 (1995-05-01), Juds et al.
patent: 5419549 (1995-05-01), Galloway et al.
patent: 5423080 (1995-06-01), Perret et al.
patent: 5432482 (1995-07-01), Bailey
patent: 5479008 (1995-12-01), Nishiyama et al.
patent: 5497163 (1996-03-01), Lohninger et al.
patent: 5563617 (1996-10-01), Redfern et al.
patent: 5818381 (1998-10-01), Williams
Article Product Brochure of Alpha Industries, Inc., for Model # DRO-3000 "X-Band Microwave Transceiver", May, 1996.
Cadotte, Jr. Roland
Koscica Thomas E.
Sotomayor John B.
Speed Products, Inc.
Watov Kenneth
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