FIELD: radio engineering, communication.
SUBSTANCE: antenna comprises a metal shield, lower and upper radiating elements stacked parallel to the metal shield and separated by dielectric substrates, and a coaxial transmission line with one driving point. The radiating elements are in the form of rectangular plates, at the edges of which there is a series of protrusions that are identical on shape and dimensions. The distance between any two adjacent protrusions is the same and corresponds to a given tuning interval. The radiating elements and the shield are separated by dielectric substrates with a layer of a high-temperature adhesive, the permittivity of which is equal to that of each of the substrates which are based on a ceramic with permittivity εr≥10.
EFFECT: easier adjustment while reducing the size of the dual-band circularly polarised microstrip antenna.
3 cl, 3 dwg
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