MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202641043398 A) filed by Bapatla Surendra Babu; and Irukumalli Priyanka, Tenali, Andhra Pradesh, on April 5, for 'phase-transition nonlinear ferroelectric varactor wide-tuning oscillator apparatus exploiting curie-weiss divergence.'
Inventor(s) include Bapatla Surendra Babu; and Irukumalli Priyanka.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "An apparatus that breaks the tunability-stability tradeoff in oscillators by decoupling macroscopic DC tuning sensitivity from microscopic RF noise sensitivity. A resonant element (110) is coupled to a ferroelectric varactor (120) exhibiting a non-linear capacitance-voltage characteristic induced by proximity to a phase transition. The varactor's Curie temperature (130) is calibrated slightly below the operating temperature (140), ensuring substantially hysteresis-free operation (240) in the paraelectric phase (230). This proximity induces a Curie-Weiss susceptibility divergence (210), yielding a highly steep, non-linear C(V) characteristic (220). A DC bias circuit (310) applies large voltage steps traversing the steep curve, generating high DC tuning gain (320). Concurrently, the microscopic RF oscillation voltage (330) samples only a flattened local curvature, producing minimal RF noise gain (340). This enforces a sensitivity decoupling ratio (350) greater than unity, attenuating noise and executing a tunability-stability tradeoff inversion (440) that yields phase noise improvement (430)."
Disclaimer: Curated by HT Syndication.
