Slotted microstrip antenna based on slot coupling feeding

Abstract

The slotted microstrip antenna comprises a dielectric plate, a first microstrip feeder plate, a second coupling window plate and a third slotted microstrip antenna plate, and the dielectric plate comprises an upper dielectric plate and a lower dielectric plate. The first microstrip feeder plate, the lower dielectric plate, the second coupling window plate, the upper dielectric plate and the third slotted microstrip antenna plate are sequentially arranged from top to bottom, the second coupling window plate is a common grounding plate, and the lower dielectric plate and the upper dielectric plate are separated by the common grounding plate. And the first microstrip feeder plate arranged on the lower dielectric plate is electromagnetically coupled to the upper radiation patch through the slot aperture of the common grounding plate. The upper dielectric plate is made of a material with a low dielectric constant and is beneficial to radiation, and the lower dielectric plate contains a feed source and is made of a material with a high dielectric constant, so that a field is restrained in a feeder line, and the bandwidth of the antenna is obviously increased.

Images