Electricity: conductors and insulators – With fluids or vacuum – Conduits – cables and conductors
Reexamination Certificate
2005-08-09
2005-08-09
Nguyen, Chau N. (Department: 2831)
Electricity: conductors and insulators
With fluids or vacuum
Conduits, cables and conductors
C174S111000
Reexamination Certificate
active
06927332
ABSTRACT:
A flexible test cable has a center conductor (210), a conductive sleeve (240) with an effective electrical length equal to an odd quarter wavelength of a frequency of interest, a dielectric spacer (230) located inside the conductive sleeve (240) for preventing a portion of the center conductor from electrically coupling to the conductive sleeve, and a dielectric joint (220) for maintaining a portion of the center conductor in the middle of an end of the conductive sleeve (240). The conductive sleeve (240) can have a variety of cross-sectional shapes. The dielectric spacer (230) can be formed in a variety of shapes from rigid or compressible dielectric materials. Likewise, the dielectric joint (220) can be formed in a variety of shapes from rigid or compressible dielectric materials. Using the dielectric joint (220) to link together multiple conductive sleeves (240) results in a flexible test cable (200) with electrical transparency at the frequency of interest.
REFERENCES:
patent: 1911470 (1933-05-01), Rosner
patent: 2018353 (1935-10-01), Gothe
patent: 2495867 (1950-01-01), Peters
patent: 2566335 (1951-09-01), Joerren
patent: 2587916 (1952-03-01), Squier
patent: 3105287 (1963-10-01), Whearley et al.
patent: 3106599 (1963-10-01), Leitner et al.
patent: 4029891 (1977-06-01), Nakata
patent: 4396797 (1983-08-01), Sakuragi et al.
patent: 5455548 (1995-10-01), Grandchamp et al.
patent: 5902957 (1999-05-01), Takahashi et al.
patent: 2004/0046557 (2004-03-01), Karmarkar et al.
R. Lowe and K. Cawley, Keithley Instruments, Cleveland, Ohio; Optimizing Test Performance of Digital Cellular Products With Ultra-High Speed Power Supplies (White Paper); 2000.
James P. Phillips, Eric L. Krenz, Andrew A. Efanov, Motorola, Inc., Harvard, IL.; Spherical-Scan Near-Field Chamber For Cellular Phones; AMTA '98 Antenna Measurement Techniques Association 20thAnnual Meeting and Symposium; Montreal, Quebec, Canada; Oct. 1998, pp. 37-42.
Leininger Kristen M.
Moller Paul J.
Phillips James P.
Chen Sylvia
Motorola Inc.
Nguyen Chau N.
LandOfFree
Flexible test cable does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible test cable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible test cable will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3523358