BRUCE JOSEPH LIBAN
Engineers in Philadelphia, PA
License number
Pennsylvania PE034764E
Category
Engineers
Type
Professional Engineer
Address
Address
Philadelphia, PA 19111
Professional information
Bruce Liban - Philadelphia, PA
Work:
RF Design
Senior Application Engineer Electronic Toll Collection & Railroad Signal Systems Electronic Measurements Inc - Neptune City, NJ
Electrical Engineer Communication Electronics Command Directorate (CECOM) - Fort Monmouth, NJ
Electrical Engineer GE Aerospace Div - Moorestown, NJ
Electrical Engineer Kulicke and Soffa - Horsham, PA
Electrical Engineer servo motors
electrical engineer
Senior Application Engineer Electronic Toll Collection & Railroad Signal Systems Electronic Measurements Inc - Neptune City, NJ
Electrical Engineer Communication Electronics Command Directorate (CECOM) - Fort Monmouth, NJ
Electrical Engineer GE Aerospace Div - Moorestown, NJ
Electrical Engineer Kulicke and Soffa - Horsham, PA
Electrical Engineer servo motors
electrical engineer
Education:
Bucknell University
M.S.E.E. in Engineering License
M.S.E.E. in Engineering License
Azimuth Steerable Antenna
US Patent:
6037905, Mar 14, 2000
Filed:
Aug 6, 1998
Appl. No.:
9/130427
Inventors:
Thomas E. Koscica - Clark NJ
Bruce J. Liban - Philadelphia PA
Bruce J. Liban - Philadelphia PA
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H01Q 126
US Classification:
343701
Abstract:
An antenna system is described having a plurality of elements, one of which is an active element for transmitting or receiving signal, the remaining lements acting as reflectors, and wherein the elements may be comprised of a series of diodes connected in series with conductors having a length that is a fraction of the wavelength of the design frequency. When its diodes are biased for conduction, an element can radiate or receive r. f. signals or act as a reflector, and when its diodes are not conducting, the element is transparent to r. f. of the design frequency.
Simplified Stacked Dipole Antenna
US Patent:
6014112, Jan 11, 2000
Filed:
Aug 6, 1998
Appl. No.:
9/130060
Inventors:
Thomas E. Koscica - Clark NJ
Bruce J. Liban - Philadelphia PA
Bruce J. Liban - Philadelphia PA
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H01Q 928
US Classification:
343795
Abstract:
An antenna array is described in which a feed line that is formed by metal atterns on opposite sides of a circuit board has a plurality of pairs of adjoining quarter wave resonant sections formed by different widths of the patterns and dipoles respectively coupled to the junctions of the pairs of quarter wave sections. The proximity between dipole elements and the feed line is sufficiently close to enable a nearly symmetric azimuthal antenna beam pattern. Each dipole further uses capacitive compensation at its center to balance the capacitive loading with the closely spaced feed line.