MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202621041559 A) filed by Mr. Vijay Joshi; Mr. Shridhar V. Modak; Mr. Aman P. Gupta; Mr. Atharv Santosh Wagh; Prof. Vaishali Umesh Gongane; and Prof. Rajendra Kaduskar, Pune, Maharashtra, on April 1, for 'rf transceiver system for phase-shift and attenuation-based relative density measurement of aqueous solutions using microwave interrogation and a method thereof.'
Inventor(s) include Mr. Vijay Joshi; Mr. Shridhar V. Modak; Mr. Aman P. Gupta; Mr. Atharv Santosh Wagh; Prof. Vaishali Umesh Gongane; and Prof. Rajendra Kaduskar.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure relates to a radio frequency (RF) transceiver system for simultaneous phase-shift and attenuation-based characterization of an aqueous solution. The system (100) includes a frequency synthesizer (102) configured to generate a phase-coherent microwave excitation signal within a predefined frequency range, and a transmit power amplifier (104) driving a dielectric-isolated transmission antenna (106) to introduce the excitation signal into a measurement cell. A receiving antenna (108) captures a return RF signal influenced by interaction with the aqueous solution, which is amplified by a low-noise amplifier (110) and quadrature-demodulated by an in-phase/quadrature (I/Q) demodulator (112) using the same phase-coherent excitation signal to produce I and Q components. An analog-to-digital converter (114) digitizes the components for a hardware digital signal processor (DSP) (116) configured to compute phase shift and attenuation and determine the relative density of the aqueous solution using a calibration or algorithmic model."
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