MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202611068633 A) filed by Dr. B R Ambedkar National Institute Of Technology, Jalandhar on June 01, 2026, for Integrated Circularly Polarized Antenna Triplexer Using Substrate Integrated Waveguide For Wireless Front-End Systems.
Inventors include Kundan Kumar; Shruti Priya; Sudhanshu Kumar; and Shreya Swaraj.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: INTEGRATED CIRCULARLY POLARIZED ANTENNA TRIPLEXER USING SUBSTRATE INTEGRATED WAVEGUIDE FOR WIRELESS FRONT-END SYSTEMS ABSTRACT The present invention discloses an integrated circularly polarized antenna triplexer (100) comprising: a substrate integrated waveguide (SIW) structure (102) formed on a dielectric substrate; a plurality of radiating slots (104) embedded within the SIW structure (102), wherein the plurality of radiating slots (104) includes three T-shaped slots (104); a plurality of SIW cavities (106) coupled to the radiating slots (104), wherein two of the T-shaped slots (104) are backed by quarter-mode SIW cavities (106A) and one T-shaped slot (104) is backed by a half-mode SIW cavity (106B); and a plurality of feed lines (108) configured to independently excite each of the radiating slots (104) through corresponding ports, wherein the antenna triplexer (100) is configured to operate at three distinct frequency bands and simultaneously perform radiation and signal multiplexing, and wherein the arra
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