BROADBAND THREE-BAND HORN-MICROSTRIP ANTENNA Russian patent published in 2009 - IPC H01Q13/02 

FIELD: physics, radio.

SUBSTANCE: invention refers to broadband SHF antennas. Antenna contains horn, resonator and bridge with proper coupling. Additionally antenna accommodates the second bridge made of well-conducting material and shaped as circular straight cylinder. Horn is made of well-conducting material and shaped as quarter straight cylinder back of which is screen reflector. Resonator plate is parallel to screen reflector and made of well-conducting material in the form of isosceles triangle. Symmetry axis of the plate is perpendicular to two opposite side walls of horn and intersects their symmetry axes and attachment point to the first and the second bridges the second ends of which are fixed on screen reflector perpendicularly. Vertex of isosceles triangle of resonator plate is added with symmetrically protruding strip elements, position and dimensions of which are defined by specified working bands. Vertex of isosceles triangle of resonator plate is connected to central conductor of coaxial feed line with durable electric contact. Coaxial feed line is linked up to horn plate through side wall perpendicularly. External conductor of line is fixed on side wall with durable electric contact.

EFFECT: antenna downsising yet enabling effective signal receiving and transmitting within known cellular and trunking standards.

12 dwg