THREE-BAND MICROSTRIP ANTENNA Russian patent published in 2011 - IPC H01Q13/00 

FIELD: radio engineering.

SUBSTANCE: to antenna containing two resonators, made of conducting plates on common dielectric substrate located parallel above screen, at that, conducting plate of the second resonator has rectangular shape, short-circuit plate and coaxial cable with the corresponding links there additionally introduced is shunting capacity in the form of two flat rectangular plates. Conducting plate of the first resonator is made in the form of oblique triangle the flattened apex of which is combined with antenna centre and provided with two rectangular loops. Extreme angular areas of conducting plate of the second resonator, which are located on the side which is the closest to the first resonator, are provided with connected rectangular conducting plates of shunting capacity. External conductor of coaxial cable is connected to conducting plate of the second resonator, and central conductor is connected to flattened apex of oblique triangle of conducting plate of the first resonator.

EFFECT: providing effective reception and transmission of signals of known standards of cellular and trunked communication systems.

14 dwg