| Patent Number |
Title Of Patent |
Date Issued |
| 7382212 |
Transition between a rectangular waveguide and a microstrip line comprised of a single metallize |
June 3, 2008 |
| The transition between a rectangular waveguide and a microstrip line consists of a ribbed rectangular waveguide realised in a foam bar in synthetic material of which the metallized base under the rib continues in the form of a foam plate constituting a substrate for the microstrip li |
| 7355495 |
Microwave filter comprising a coaxial structure with a metallized foam having a periodic profile |
April 8, 2008 |
| The invention relates to a microwave filter comprising a coaxial structure, consisting of a tubular outer conductor and an inner bar conductor. According to the invention, the inner bar conductor extends in an axial direction inside the outer tube and, together with said tube, forms |
| 7030720 |
Floating microwave filter in a waveguide structure |
April 18, 2006 |
| A floating microwave filter in a waveguide structure comprises filtering elements sandwiched between two foam half-bars that are placed inside a waveguide. The filtering elements are metal features etched in the surface of one of the two foam half-bars and the waveguide is an interna |
| 6879290 |
Compact printed "patch" antenna |
April 12, 2005 |
| A half-wave printed "patch" antenna includes, symmetrically with respect to a plane of symmetry of the antenna perpendicular to faces of the antenna, a dielectric substrate and two conductive layers on respective faces of the substrate. One face of the substrate includes a raised portion |
| 6606062 |
Planar antenna and a dual band transmission device including it |
August 12, 2003 |
| A dual band transmission device includes a microstrip antenna. Its patch is provided with a short circuit for setting up quarter-wave resonant modes. A slot penetrates into the patch from its periphery, in the vicinity of the short circuit, and separates a first region from a second regi |
| 6545640 |
Dual-band transmission device and antenna therefor |
April 8, 2003 |
| The antenna (1) of this system is a microstrip antenna. A rear edge (10) of the body (31) of its patch (6) is provided with a short-circuit (S) by which a quarter-wave type primary resonance can be excited from a connecting line (C1). A slot (17) penetrates the patch from its periphery |
| 6496148 |
Antenna with a conductive layer and a two-band transmitter including the antenna |
December 17, 2002 |
| The antenna of said transmitter is a microstrip antenna. A rear edge of its patch is provided with a short circuit by means of which a quarter-wave primary resonance can be excited by a coplanar line formed by two coupling slots in an area. Separator slots separate said area from another |
| 6304220 |
Antenna with stacked resonant structures and a multi-frequency radiocommunications system includ |
October 16, 2001 |
| An antenna with stacked resonant structures includes: a guide line for guiding electromagnetic waves formed in a conductive layer lying in a plane, and two resonant structures having different resonant frequencies, the two structures being formed on respective opposite sides of the plane |
| 6133880 |
Short-circuit microstrip antenna and device including that antenna |
October 17, 2000 |
| A microstrip antenna includes a composite short-circuit consisting of two conductive strips. A vertical strip, in the plane of the short-circuit between the two strips, is connected to the central conductor of a coupling line forming part of the antenna and enabling the coupling with a |
| 6133879 |
Multifrequency microstrip antenna and a device including said antenna |
October 17, 2000 |
| A multifrequency microstrip antenna in accordance with the present invention includes two zones connected to a short-circuit consisting of two conductive strips. These zones are sufficiently decoupled from each other to enable two resonances to be established in two respective differ |
| 6121930 |
Microstrip antenna and a device including said antenna |
September 19, 2000 |
| A quarter-wave antenna includes a patch and a ground respectively formed on the two surfaces of a substrate and mutually connected by a short-circuit. A coupling strip enters the patch via said short-circuit. It extends in the patch between two lateral slots and is connected thereto at a |
