| Patent Number |
Title Of Patent |
Date Issued |
| 6147643 |
Method to determine the error of orientational adjustment of the radiating face of an electronic |
November 14, 2000 |
| In order to carry out the on-site determining of the error of orientational adjustment of an electronic scanning antenna, this error being due to defects of manufacture of the radiating face of this antenna, radioelectric measurements are used during the qualification of this antenna |
| 6056780 |
Method for the positioning of electromagnetic sensors or transmitters in an array |
May 2, 2000 |
| A method for positioning plural electromagnetic sensors in an array including the steps of: (1) designating one of the two sensors of the plural sensors that are a greatest distance apart as a point of origin of a reference system, (2) encoding in genotype form, the coordinates of the |
| 5767805 |
Method for the broadening of a volume antenna beam |
June 16, 1998 |
| The disclosure relates to electronic scanning array antennas whose radiating elements are distributed within a volume instead of being distributed on a reflective surface that is plane or generated by revolution. It pertains to a method for broadening the beam of a volume antenna aim |
| 5650786 |
Compensation device for aiming errors caused by the malfunctioning of electronic scanning antenn |
July 22, 1997 |
| Disclosed is a device to compensate for the aiming errors caused by malfunctions in phase-shifters of electronic scanning antennas. With the electronic scanning antenna being plane and having a power distribution that is symmetrical in amplitude and in phase, the device has means pos |
| 5167428 |
Position-adjustment device for a belt-guide, and safety-belt provided therewith |
December 1, 1992 |
| A position-adjusting device for a safety belt guide loop includes a rail provided with retaining slots, a carriage which is slidably mounted on the rail and on which are mounted the guide loop and two locking bolts urged by respective springs to a position of engagement in the rail slots |
| 5138324 |
Device to measure the elevation angle for a radar equipped with a double curvature reflective ty |
August 11, 1992 |
| In a reflective angle of a radar, auxiliary elementary sources are positioned beneath the main source. By the division of the measurement signals of the measurement channel of the main source and of the auxiliary measurement channel, a monotonous characteristic is obtained, enabling the |
| 5038149 |
Antenna with three-dimensional coverage and electronic scanning, of the random spare volume arra |
August 6, 1991 |
| An antenna of the random spare volume array type comprising a plurality of elementary antennas with almost omnidirectional individual radiation distributed according to a statistically isotropic random relationship of distribution within an enveloping volume having a shape generated by |
| 4792811 |
Device for reflecting the electromagnetic waves of a polarization and a method of construction o |
December 20, 1988 |
| A microwave reflector having metallic surfaces and nonmetallic surfaces is perfectly reflecting for the waves of a first polarization and partly transparent for the waves of a second polarization orthogonal to the first. The reflector is primarily applicable to radar systems. |
| 4740791 |
Antenna with pseudo-toric coverage having two reflectors |
April 26, 1988 |
| An antenna with pseudo-toric cover for transmitting and/or receiving a microwave, comprising principally an array transmitting a microwave towards a first reflector in the form of an elliptic or parabolic skull cap, whose concave side is turned towards the array and which reflects the |
| 4672378 |
Method and apparatus for reducing the power of jamming signals received by radar antenna sidelob |
June 9, 1987 |
| Secondary lobe cancellation (SLC) is used to reduce the power of jamming signals received by the sidelobes of a main radar antenna. The signal from the radiation pattern of the main antenna is summed with signals from auxiliary radiation patterns. Each auxiliary pattern is chosen to be |
| 4665405 |
Antenna having two crossed cylindro-parabolic reflectors |
May 12, 1987 |
| An antenna having two crossed cylindro-parabolic reflectors in which the generatrices of said reflectors are orthogonal. The source is placed close to the center of the main reflector, which is further provided with polarization rotation means. The auxiliary reflector is placed facing th |
| 4626207 |
Apparatus for holding a glass sheet in a substantially vertical position during heat treatment o |
December 2, 1986 |
| A frame for holding a glass sheet in a substantially vertical position. The frame has two uprights joined by upper and lower crosspieces. A lower support means adapted to engage a bottom edge of a glass sheet is carried by the lower crosspiece. Upper support means freely movable in a ver |
| 4508783 |
Method for the differentiated hardening of glass sheets, especially of automobile windshields, a |
April 2, 1985 |
| The invention relates to a method of differentiated rate of hardening of a glass sheet by blowing a cooling gas in the direction of this sheet having two zones from nozzles. According to the invention, a simultaneous solidification of the glass sheet is produced at both zones of the shee |
| 4260993 |
Dual-band antenna with periscopic supply system |
April 7, 1981 |
| A dual-band antenna for the transmission and reception of radiant energy has a Cassegrain-type reflector assembly, rotatable about an azimuth axis and pivotable about an elevational axis, to which two outgoing beams are directed in a transmitting mode by a periscopic supply system includ |
