Electrical Engineer Power
Resume:
AMIR JAVAN KHOSHKHOLGH
Address: **** ******** **** #**
Davis, California 95616
Mobile Phone: +1-530-***-****
E-Mail: ********@*******.***
LinkedIn: www.linkedin.com/in/amirjavan
Overview Electrical engineer proficient in the design and implementation of radio frequency
power amplifiers, concentrating on envelope tracking technique. Skillful in analog
circuits as well as IC design.
To make a substantial contribution as a designer in a R&D / industrial environment by
utilizing and developing upon related academic background, set of skills, experiences
and competencies.
Professional Analog design
o
Skills IC design
o
RF power amplifiers
o
Linear / Switching DC-DC converters
o
Layout extraction
o
PCB design
o
Test and measurements with on-wafer probe station, signal generator, etc.
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Cadence Cadence Virtuoso (custom IC design)
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Virtuoso Cadence Orcad (Pspice)
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(Custom IC MATLAB Programming
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Design) EAGLE PCB Design
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Skills Advanced Design System (ADS)
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Microwave Office (AWR)
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JAVA Programming
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Professional University of California, Davis
Experiences 06.2013 – Now
working as Junior Specialist, on the:
o Design and Implementation of Envelope Modulator for LTE applications,
consisting of the Linear stage to cover high frequency components of the envelope
signal and the Switching stage (buck converter) to supply main portion of the
output current, efficiently.
i. At the first step, it was designed and implemented at the discrete
components level at LTE envelope bandwidth of 20 MHz, for GaAs
applications (VDD=6V) and 69% efficiency obtained.
ii. At the second step, the envelope modulator has been designed at the
transistor level (by TSMC 0.13μm design kit with VDD=3.3V) in Cadence
Virtuoso. As it was expected, at the same LTE application frequency, higher
efficiencies than the Analog design acquired.
iii. Finally, it was designed and implemented at the discrete components level
at LTE envelope bandwidth of 20 MHz and 40 MHz, for GaN applications
(VDD=30V) and 65% efficiency was measured. (The implementation achieved
in Politecnico di Torino)
o Design and Implementation of Envelope Tracking Power Amplifiers
i. At the first step, the 6V analog Envelope Modulator was tested with a
commercial PA from Skyworks (SKY65009) at carrier frequency of 1 GHz and
6% efficiency improvement was observed. During the simulations, LTE signal
was created by Agilent’s LTE Signal Studio.
ii. At the second step, the same analog circuit is getting tested with a MMIC
GaAs PA at carrier frequency of 24 GHz. It would be the first K-band envelope
tracking power amplifier (The measurements are getting done in Politecnico di
Torino) Refer to the 2nd publication
iii. Finally, the 30V Envelope Modulator is getting mounted on a Doherty GaN
power amplifier at carrier frequency of 4 GHz (The measurements are getting
done in Politecnico di Torino) Refer to the 3rd publication
Education o Politecnico di Torino 01.2012 - 02.2015 Turin, Italy
Ph.D. in Electronics Engineering
Turin, Italy
o Politecnico di Torino 09.2009 - 09.2011
M.Sc. in Electrical Engineering
Tehran, Iran
o Azad University, CTB 09.2005 - 09.2007
M.A. in Industrial Management
Mashhad, Iran
o Ferdowsi University 09.1996 - 05.2002
B.Sc. in Electrical Engineering
Publications o V. Camarchia, Jie Fang, G. Ghione, A. Javan Khoshkholgh, J. Moreno Rubio,
M. Pirola, R. Quaglia, C. Ramella
Bandwidth extension of GaN Doherty power amplifier: effect on power,
efficiency and linearity (presented at IWS, 2013)
o Javan Khoshkholgh, M. Pirola, R. Quaglia
High efficiency K-band GaAs envelope tracking power amplifier for LTE applications
(Paper under work for EuMW, 2015)
o Javan Khoshkholgh, M. Pirola, R. Quaglia
Envelope Tracking applied to LTE X-band GaN Doherty power amplifier (Paper under
work for EuMW, 2015)
Languages o English Fluent
Native
o Persian
Intermediate
o Italian
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