Assignee
ELECTROMAGNETIC SCIENCES INC
US17 patents
Top patents by PatentIndex Score
US5304999AApr 19, 1994
Polarization agility in an RF radiator module for use in a phased array
ELECTROMAGNETIC SCIENCES INC211 citations97
US5129099AJul 7, 1992
Reciprocal hybrid mode rf circuit for coupling rf transceiver to an rf radiator
ELECTROMAGNETIC SCIENCES INC36 citations91
US4673946AJun 16, 1987
Ridged waveguide to rectangular waveguide adaptor useful for feeding phased array antenna
ELECTROMAGNETIC SCIENCES INC29 citations91
US5278574AJan 11, 1994
Mounting structure for multi-element phased array antenna
ELECTROMAGNETIC SCIENCES INC23 citations90
US5075648ADec 24, 1991
Hybrid mode rf phase shifter and variable power divider using the same
ELECTROMAGNETIC SCIENCES INC33 citations89
US4697158ASep 29, 1987
Reduced height waveguide circulator
ELECTROMAGNETIC SCIENCES INC46 citations88
US5844529ADec 1, 1998
Antenna enclosure with a stress-free connection along the length of the radome
ELECTROMAGNETIC SCIENCES INC41 citations86
US4980691ADec 25, 1990
Distributed planar array beam steering control with aircraft roll compensation
ELECTROMAGNETIC SCIENCES INC32 citations86
US4445098AApr 24, 1984
Method and apparatus for fast-switching dual-toroid microwave phase shifter
ELECTROMAGNETIC SCIENCES INC24 citations81
US5170138ADec 8, 1992
Single toroid hybrid mode RF phase shifter
ELECTROMAGNETIC SCIENCES INC12 citations72
US5144319ASep 1, 1992
Planar substrate ferrite/diode phase shifter for phased array applications
ELECTROMAGNETIC SCIENCES INC12 citations72
US4884045ANov 28, 1989
Fast switching reciprocal ferrite phase shifter
ELECTROMAGNETIC SCIENCES INC22 citations69
US4801902AJan 31, 1989
Waveguide circulator with I/O port impedance matching produced by ferrite-port gap dimensioning
ELECTROMAGNETIC SCIENCES INC10 citations69
US5089716AFeb 18, 1992
Simplified driver for controlled flux ferrite phase shifter
ELECTROMAGNETIC SCIENCES INC10 citations66
US4140971AFeb 20, 1979
Proximity detection system utilizing a movable magnet for saturating an inductor core wherein the rise time of a plurality of such inductors are compared
ELECTROMAGNETIC SCIENCES INC18 citations60
US3946340AMar 23, 1976
Phase shifter
ELECTROMAGNETIC SCIENCES INC7 citations58
US4012644AMar 15, 1977
Blocking oscillator driver for a microwave latching ferrite device
ELECTROMAGNETIC SCIENCES INC4 citations45