BHUPESH KUMAR SAHU

E-mail: bhupeshksahu@rediffmail.com                                             Mobile: + 91 9891136396 

ú          Total 5+ years of experience in RF/Microwave (R&D), Design & Development of RF/Microwave subsystems for Defence Applications.

ú          Currently working as Scientist at Armament Research & Development Establishment   ( ARDE- PUNE) Defence Research Development Organisation (DRDO)

ú          Expertise in Design & Development of Passive Components like Filters, Power Dividers/Combiners, Couplers, Hybrids, and Phase shifters.

ú          Expertise in Design & Development of Radiating Components like microstrip patches antenna, array of patch antenna, monopole antenna, broadband and conformal antennas.

ú          Expertise in Design & Development of Active circuits like T/R Modules, Low Noise Amplifier (LNA), Power Amplifiers (PA), Mixers, Voltage Controlled Oscillators (VCO), Active- Circulators.

ú          Well versed and expertise in all kinds of RF Measurements, Test Equipments like Vector Network Analyser, Spectrum Analyser, Oscilloscopes, and Antenna Radiation Pattern measurement techniques.

ú          Possess Expertise Skills in

                         RF CAD Circuit Simulator software Tools like Agilent ADS, Ansoft Designer.

                         RF 3D EM Simulators like Ansoft HFSS, CST Microwave Studio

ú          Possess Expertise Skills in

                        Handling Photo Mask generator

                        Photolithography process

ú          Experience in implementing procedures, service standards & operational policies for successful completion of projects on time.

ú          Experience in implementing various Quality Improvements for continual improvements in the services.

·         Carrying out Feasibility Study for the Designs to be Taken up & Planning

·         Design of RF Circuits / Components / Subsystems and Optimisation of the circuits performances using the Microwave CAD tools

·         Generating required package & assembly drawings for MIC from mechanical CAD teams.

·         Follow up of the fabrications process and PCB printing and component assembly

·         Guiding a team for subsystems assembly and integration and testing of the same at various stages of assembly and tuning.

·         Associating in Carrying out MIL STD environmental tests

·         Generating Design (PDR, CDR), ATP, QTP and User guide documents.

·         Co-ordinating the activities for Carrying out Field Trails of the Developed Systems

·         Design & Development of Universal Variable Time (Proximity) Fuse for Artillery Field Guns ( at 4 GHz )

Proximity fuse is basically a height sensor which decides the HOB of the Shell (War Head fired from the Artillery guns. The system consists of transceivers which work on FM-CW Radar principle.  The system transmits and receives electromagnetic waves in the course of its flight. After signal conditioning the detected reflections from the target are processed by a Micro Controller and triggers the firing circuit.  This technique gives height of burst independent of angle of approach, impact speed and length of shell.

I have designed Antenna, Coupler, LNA, Power Amplifiers filters, Power dividers required for the transceiver systems. The system is successfully fabricated, integrated with artillery systems and Carried out field trials for the Indian Army.

·         Design & Development X Band (10 GHz) Transceiver System for Radar Application

The system consists of circularly polarized micro strip patch antenna, voltage controlled oscillator, power amplifier, low noise amplifier, active circulator and band pass filter. I have designed all the subsystems and tested individually for its performance. The subsystems are successfully integrated as a complete system and tested for its operation.

This Transceiver system is designed for its compactness with optimum performance.

Novelty: Design of Active Circulator which makes use of non reciprocal property of the transistor to get the desired isolation in the one path and required forward gain in the other path of the circulator.

·         Design & Development of Various RF Components for Ongoing Projects

 I have involved in successful Design & development of RF components like

RF Switches, Phase Shifters, Power combiners/Dividers, Various Kinds of Microstrip Patch Antennas and Antenna Arrays, Directional Couplers, Hybrid Couplers, All Types of Filters (Low Pass, High Pass, Band Pass, Band Stop, and Notch Filters). I have involved in design of RF Matching circuits which is required during integration of various subsystems. Balance       Rat-race wide band Mixers.

Name                                                  : Bhupesh Kumar Sahu

            Father’s Name                                   : Jagendra Singh Sahu

Mother’s Name                                   : Smt Keshar Sahu

Date of Birth                                      : 12th Jan, 1980

Permanent Address                           : S/O Shri Jagendra Singh Sahu,

                                                              Village- Bhanpuri, Post- Dhaneli,

                                                              Tahsil- Gurur, District-Durg,

                                                              (C.G.) Pin- 491227, India,

                                                              Phone - +91-7749211038

Languages Known                             : English, Hindi