MICROSTRIP ANTENNA Russian patent published in 2013 - IPC H01Q3/00 

FIELD: radio engineering, communication.

SUBSTANCE: invention may be widely used as an independent receiving or transmitting antenna or an element of a phased antenna array, in particular, the antenna may be used as a receiving antenna in equipment of users of space navigation systems (GPS, GLONASS/GPS, etc.). The microstrip antenna includes a radiating plate, a screen arranged underneath, capacitance elements, fixed on the edges of the radiating plate, and a communication pin, which connects the plate with a power supply line, the antenna is equipped with a dielectric substrate, on the upper surface of which there is a radiating plate, made symmetrical relative to its central axis and having along the contour 2n through cuts with slots reaching the plate edge, and capacitance elements are fixed in the above slots and form together with cuts a metamaterial. Cuts arranged on one axis of the radiating plate clockwise or counterclockwise from a communication pin are made with area of S_n+1, which is more than the area S_n of other cuts, the angle of rotation relative to the communication pin makes, accordingly, +(45±5)° (right polarisation) or -(45±5)° (left polarisation), and ratio of areas of cuts is determined on the basis of the following dependence S_n+1/S_n=1.1+0.05.

EFFECT: reduction of microstrip antenna dimensions without reduction in efficiency of its radiation.

6 cl, 7 dwg