MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541122093 A) filed by Vellore Institute Of Technology, Vellore, Tamil Nadu, on Dec. 4, 2025, for '1.9 ghz rf frontend receiver with double balanced mixer.'
Inventor(s) include Dr. Arun Dev Dhar Dwivedi; and Mr. Sayan Das.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure provides a radio frequency frontend receiver system operating at 1.9 GHz. The system includes a low noise amplifier (102) with cascode topology having common gate and drain amplifier stages and active inductor matching network for receiving and amplifying RF signals. The system includes a double balanced mixer (112, 114) coupled to the amplifier output, with cross-coupled NMOS transistor pairs providing frequency conversion and isolation between RF, LO, and IF ports. The system includes a voltage controlled oscillator (116, 118) generating local oscillator signals at 1.9 GHz, featuring LC-tank circuit with varactor tuning and cross-coupled NMOS transistors for negative resistance compensation. Impedance matching networks match input and output impedances to 50-ohm systems, with input matching utilizing inductors L1 and L2 resonating with input capacitance."
Disclaimer: Curated by HT Syndication.
