Company Filing History:
Years Active: 1994-1995
Title: Innovations of Virender K Sadhir
Introduction
Virender K Sadhir is a notable inventor based in Roanoke, VA (US). He has made significant contributions to the field of microwave integrated circuits, holding a total of three patents. His work focuses on enhancing the performance and efficiency of RF (radio frequency) technologies.
Latest Patents
One of his latest patents is the "Monolithic double balanced microstrip mixer with flat conversion loss." This invention involves a double balanced microstrip mixer circuit designed for a monolithic microwave integrated circuit. It features a diode ring modulator coupled to two baluns, enabling the supply of radio frequency signals and locally generated signals to the mixer circuit. The design includes circuits that allow broadband frequencies to be applied to the diode ring modulator, independent of the impedances created by the baluns. Additionally, it incorporates low pass filters to reject unwanted feed-through and an in-phase combiner.
Another significant patent is the "Electronically tunable gain equalizer." This equalizer circuit is implemented as an MMIC or MIC, featuring a series of microstrip transmission lines between an RF input and output terminal. It utilizes a FET as a voltage variable resistor to control the depth of the equalization curve. In a modified embodiment, artificial transmission lines with inductive elements and FETs are included, allowing for selective shorting of shunt paths and shifting the center frequency of the equalizer circuit.
Career Highlights
Virender K Sadhir is currently employed at ITT Corporation, where he continues to innovate in the field of microwave technology. His work has been instrumental in advancing RF applications, contributing to the development of more efficient communication systems.
Collaborations
Throughout his career, Sadhir has collaborated with notable colleagues, including David A Willems and Kenneth S Karsten, Jr. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Virender K Sadhir's contributions to microwave integrated circuits and RF technologies highlight his role as a significant inventor in the field. His patents reflect a commitment to advancing technology and improving communication systems.