MUMBAI, India, Aug. 10 -- Intellectual Property India has published a patent application (202631077661 A) filed by National Institute Of Technology Rourkela Nit Rourkela on June 23, 2026, for "cross-Slit Amc Integrated High Gain Circularly Polarized Crossed-Dipole Antenna For L-Band".
Inventors include Dr. Situ Rani Patre; Kamlesh Muchhawat; Rachita Tripathy; Sagi Sravan Kumar; Kaushik Kannan; Dr. Milind B. Mahajan; and Sajith P.
The application for the patent was published on July 31, 2026, under issue no. 31/2026.
Abstract: CROSS-SLIT AMC INTEGRATED HIGH GAIN CIRCULARLY POLARIZED CROSSED-DIPOLE ANTENNA FOR L-BAND ABSTRACT The present invention discloses a low-profile, high-gain antenna assembly for navigation. The assembly integrates a circularly polarized crossed-dipole radiator with an artificial magnetic conductor (AMC) reflector surface. The radiator employs tapered elliptical arms and a vacant-quarter ring phase shifter to achieve wideband circular polarization from a single feed point. The AMC surface consists of a periodic array of cross-slit unit cells designed to provide an in-phase reflection coefficient, enabling the radiator to be positioned at a sub-wavelength distance from the ground plane. This configuration achieves a compact physical profile while maintaining high radiation efficiency, broad axial ratio bandwidth, and high gain across the GNSS L-band. The invention is particularly suited for applications requiring lightweight and space-efficient antenna solutions without compromising electromagnetic performance. (FIG. 1)
Disclaimer: Curated by HT Syndication.
