Biosensor with integrated antenna and measurement method for biosensing applications

A biosensor for measuring a concentration of a desired molecule inside a liquid medium, comprising:

• at least one metallic plate configured as a ground plate;
• at least one dielectric substrate located on top of the at least one metallic plate;
• at least one split-ring resonator realized on top of the at least one dielectric substrate, wherein the at least one split-ring resonator is a single split ring resonator coated with a dielectric layer;
• at least two symmetrical antennas realized on a same plane with the at least one split-ring resonator on top of the at least one dielectric substrate, wherein each of the at least two symmetrical antennas linearly and symmetrically extend from a respective first end to a respective second end in parallel to each other in said same plane on opposite sides and spaced away from the at least one split-ring resonator, wherein the respective first end of the at least two symmetrical antennas is positioned at a first peripheral edge of the metallic plate, and the respective second end of the at least two symmetrical antennas is proximate a second peripheral edge of the metallic plate, wherein the second peripheral edge of the metallic plate is opposite the first peripheral edge of the metallic plate such that electromagnetic waves emitted from the at least two symmetrical antennas are interacted with the metallic plate for receipt by the at least one split-ring resonator;
• and at least two ports electrically coupled with the respective first end of the at least two symmetrical antennas, wherein a network analyzer is connected to the at least two symmetrical antennas via the at least two ports.