CV: Sr Engineer

SUMMARY         
Electronics and Telecommunication engineering graduate with post graduation in Microwave Electronics. Four years of design experience accompanied with six months of experience on Satellite communication equipments and VSAT links. Have designed and tested HMIC oscillators (DROs, VCOs) PLLs, Gain Equalizers and Frequency multipliers. Have conducted RF tests for Circuits and Modules like LNAs, PAs and down-converters. Experience of Ku band and Ka band system integration and testing. Experience of circuit designing using CAD tools like HP-ADS, MWOffice and Genesis. PBC schematic & layout designing using tools like AutoCAD, ORCAD Capture and ORCAD Layout. on Currently working on MMIC design and testing.

EXPERIENCE  

Sr. Engineer    May 2005 – till date   A M T L

• Design and development of MMIC
• Testing:
o Testing and characterization of MMICs designed by the team
o Integration of the characterized chips into the system.
o Testing and tuning the system to achieve the specs.
                    
Project Engineer - VLSI (RF) Jan 2004 – April 2005  CNet (I) Pvt Ltd.

• Design and development of two local oscillator trays for Ka Band Satellite receiver
• Design and development of Frequency Doubler for S-band
• Mechanical drawings of various carriers and housings for different modules of Ka Band receiver
• Temperature testing and temperature compensation of down converter modules
• Testing and tuning of gain slope equalizers at S-band
• Complete Integration and testing of Ka-band receiver including temperature tests.
• Feasibility analysis of the project proposals for design and development of –
o Bluetooth and WLAN detector
o Wireless Temperature sensor network
o Smart Antenna Switcher

July 2002 – Dec 2003   Himachal Futuristic Communication Limited.                       

Senior Engineer - Operations June 2003 – Dec 2003  HFCL SatComm.

Project: COSTISP
Team: 2 Sr Engineers, 5 Engineers, hub and field staff.
My contribution:

 Managing the central hub at Patiala for WAN network installation throughout the state, configuration of the complete network, testing and handover to Govt of Punjab. This highly ambitious project, first of its kind in India connects 150 tax collection sites throughout the state through satellite (VSAT) and leased line OFC links.

Project: Sahara Mumbai
Team: I Astt Manager, 1 Sr Engineer, 2 Engineers, hub and field staff.
My contribution:

 Establishment and commissioning of SAHARA SAMAY MUMBAI: Managed all the technical aspects of Installation and configuration of equipment for establishment of broadcast link from the studios of Sahara Communications Ltd to flag off a new regional TV channel called SAHARA SAMAY MUMBAI.

Other projects

• OB and DSNG Van Integration: Equipment installation, configuration and testing for OB Vans and DSNG Vans for TV channels like Aaj Tak, Star News, ETV & Sahara Samay.
• Establishing on-site VSAT link for live coverage (broadcast): involving configuration of broadcast equipments, antenna tracking and establishing error free connectivity for live broadcasts viewed during news programs.
• VSAT link maintenance: including maintenance of RF equipments and VSAT link.

Engineer - RF Systems  July 2002 – April 2003  HFCL, R&D Divn.

• Design and development of phase locked loop for Ku band dielectric resonator oscillator
• Design and development of 100 MHz crystal oscillator and amplifier.
• Testing and tuning of Ku and K band power amplifiers and low noise amplifiers
• Module and part selection for C band and XC band VSAT RF transceivers
• Design of C Band voltage controlled oscillator.

Trainee    Jan 2002 – July 2002   HFCL, R&D Divn.

• Design and development of Ku band dielectric resonator oscillator.

DESIGN PROJECT DETAILS

PROJECT - 1          

Project: 18 GHz digital radio (SDH-Radio)
Team: 25 Engineers, Senior Engineers and Managers.
My contribution:

 Design of Phase lock loop for hybrid circuit Ku band Dielectric Resonator Oscillators (PLDRO).
The RF section: In this section of the SDH Radio, there is three stage up and down-conversions of the signal. For use in the third up-conversion and first down conversion stage, PLDROs at four different frequencies (15.9GHz, 16.2GHz, 16.9GHz and 17.2GHz) are designed for use as LO sources. These are hybrid MIC oscillators designed using FET from NEC; phase locked using commercially available SMD components like phase detector and Op Amp from Analog Devices.

 Design of 100 MHz crystal oscillator and amplifier using lumped components
Description: This oscillator is designed to supply the reference signal for the sampling phase detector. The SPD requires a higher level (+20dBm) from the reference, so an accompanying amplifier stage is also designed. This is a hybrid MIC design using commercially available FET from Infineon.

 Testing of Ku and K band power amplifiers and low noise amplifiers
Description: The power amplifiers were tested and tuned for power gain, P1dB and third harmonic Intermodulation product. The low noise amplifiers were tested and tuned for power gain and noise figure.

PROJECT – 2

Project: VSAT RFT design
Team: 3 Engineers, 2 Senior Engineers and a Sr. Manager.
My contribution:

 Module and commercial parts selection for C Band and XC band VSAT transceivers architecture
 Description: Different commercially available modules and parts required to design these systems were identified. A technical feasibility report was generated.

 Design of hybrid MIC Voltage controlled oscillator for C band
 Description: The VCO is designed for the final up-conversion and first down conversion stages of the VSAT RF Transreceiver (RFT). This is a hybrid MIC using commercially available FET from Infineon.

PROJECT - 3          

Project: Ka-Band satellite receiver
Team: 5 Engineers, Senior Engineers and Managers.
My contribution:

 Design of local oscillator trays usinf lumped component hybrid MIC circuits.
This receiver architecture incorporates a two-stage down conversion from Ka-band to 70 MHz. Two independent local oscillators, one is Ku band (3.425GHz x 4) and one in S band (2.376Ghz) are designed for this purpose. These oscillators are designed using devices (FETs) commercially available in the market.

 Design of hybrid MIC Frequency Doubler for S-band
In the first local oscillator, a multiplier approach is follower. The oscillator is made at S band (3.425GHz) and then frequency is multiplied by 4 to scale to Ku band. This design makes use of commercially available FET from Infineon.

 Testing and measurement

o Temperature testing and compensation of down converter modules
The down converters are tested and compensated for gain variation over –10 deg C to +65 deg C. Thermopads from EMC technology are used for compensation.
o Testing and tuning of gain slope equalizers at S-band
Passive gain slope equalizers are tested and tuned in-situ to compensate the negative gain slopes observed in down converters.
o Complete Integration and testing of Ka-band receiver including temperature tests.
Two down-converters per channel, two local oscillators and eight accompanying filters are integrated into one module and tested for various parameters over temperature.

ACADEMIC PROJECTS

M.Tech final semester project (Jan 2002 to July 2002)  HFCL R&D, Gurgaon
Design of Dielectric Resonator Oscillators in Ku band (15.9GHz, 16.2GHz, 16.9GHz and 17.2GHz) using devices from NEC.

M.Tech internal project (Aug 2001 to Oct 2001)  Deptt of Electronic Sc, Univ of Delhi
Study of finite conductivity microstrip antenna using modified Spectral domain technique and writing a program in FORTRAN77 to calculate the desired parameters.

M.Tech summer training project (May 2001 to July 2001) HFCL R&D, Gurgaon
Design of Frequency Synthesizer for Antenna Tracking Receiver at 400 MHz using device from Alpha industries and phase detector and OP-Amp from Analog devices.

B.Tech project (Jan 2000 to June 2000)   CDAC - Pune (Ministry of IT)
MPEG-II standards based multilingual DVD subtitling implementation for future digital video broadcasts

DESIGN SOFTWARE PROFICIENCY

HP-ADS, MWOFFICE, Sonnet, AutoCAD, ORCAD Layout, ORCAD Capture, Genesys and various other customized application packages.

INSTRUMENT FAMILIARITY

Vector Network analyzer, MTS, Spectrum Analyzer, Power meter, Noise Figure Meter, Noise Source, Signal generators, frequency counter, VSWR meter and oscilloscopes.

QUALIFICATIONS

 M.Tech (Microwave Electronics) in 2002
Department of Electronic Science, University of Delhi, South Campus.
Major Subjects: Microwave and millimeter wave components, Microwave circuits, devices & antennas, Microwave Measurements, Microwave communication.

 AMIETE (Electronics & Telecommunication) in 2000
The Institution of Electronics & Telecom Engineers, New Delhi.
Optional Subjects: Satellite Communication and Microwave Engineering.

PERSONAL DETAILS

Date of birth  : 27 Aug 1977
Nationality  : Indian