| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: circular polarisation slit stripline leaky-wave antenna includes a dielectric substrate, on the lower metal-coated side of which there is a spiral-shaped microstrip feed line, and on the top metal-coated side of which there are main slit radiators twisted on a spiral around the geometric centre of the antenna and having straight and curved segments of different length; on the top metal-coated side of the dielectric substrate between the main slit radiators there are additional slits with a shorter electrical length than that of the main slit radiators; the additional slits are not connected to the main slit radiators and are in form of concentric arcs arranged around the geometric centre of the antenna or in form of spiral sections.EFFECT: improved technical characteristics of the antenna, specifically: low elliptic coefficient, improved suppression of cross-polarisation and wider operating frequency range.2 cl, 11 dwg |
