Engineering Quality Assurance

*** **** ********** ****** ***** 662-***-****

Sunnyvale, CA 94086 USA *************@*****.***

Yashwanth Reddy P

EXPERIENCE

Over 6 years of research experience in the fields related to Electromagnetics, Antenna Theory,

RF-Signal Integrity (high-speed interconnects) and Digital Image Processing, with 2 years of

industry experience, which includes Internship at Intel, Santa Clara

Experience in Antenna design, validation, tuning, and prototyping, with respect to GSM/PCS

(US/EU), GPS, Wifi, and Bluetooth frequencies

Experience in solving issues related to electromagnetic interference (EMI), coupling for

Antennas and other wireless systems

Strong background in antenna theory, applied electromagnetic theory, and Antenna Matching

Techniques

Over 6 years of extensive experience in using various Electromagnetic Field Solvers, such as

Ansoft HFSS, Ansoft Designer, ADS (Agilent’s advanced design software), IE3D, EMPiCASSO

Over 10 years of regular experience in using MATLAB

Very well experienced in using Antenna Anechoic Chambers for measuring antenna parameters

(return loss, VSWR, Radiation Pattern), experience in using LPKF milling machine for

fabricating antenna and other electromagnetic structures

Designed various low-profile (PIFAs, Interferometric Array, dipoles, monopoles, frequency

agility, and conformal) and high-gain (Reflectarrays, and Helical) Antennas, Electromagnetic

devices (graphene based absorbers, filters, and cloaking structures in the low-terahertz frequency

range, materials enabling negative refraction-metamaterials, Frequency Selective Surfaces,

Artificial Magnetic Conductors/High-Impedance Surfaces, metamaterial based Antennas)

EDUCATION

2009-2012 The University of Mississippi, University, MS, USA

Doctor of Philosophy (PhD.) in Engineering Science with emphasis in Electrical Engineering

(Antenna Theory, Electromagnetics, and Microwave)

2006- 2009 The University of Mississippi, University, MS, USA

Master of Science (M. S.) in Engineering Science with emphasis in Electrical Engineering

(Antenna Theory, Electromagnetics, and Microwave)

2002-2006 Jawaharlal Nehru Technological University, Hyderabab, India

Bachelor of Technology (B. Tech.) in Electronics and Communication Engineering

Project: “Image compression using discrete cosine transform- implemented using Matlab”

PROFESSIONAL EXPERIENCE

Feb 2013 – Present: Antenna Engineer, Vortis Technology Inc., San Carlos, CA, USA

January 2007 – December 2012: Research Assistant and Teaching Assistant, Department of

Electrical Engineering, University of Mississippi, University, MS, USA

May 2011 – November 2011: Graduate Technical Intern, Intel Corporation, Santa Clara, CA,

USA

April 2005– April 2006: Research Center Imarat, Govt. of India, Hyderabad, India

TECHNICAL SKILLS

Simulation Software: Ansoft HFSS, Ansoft Designer, Agilent ADS (Advanced Design System),

Momentum, Zealand IE3D, EMPiCASSO, experience in Finite Difference Time Domain (FDTD),

and method of moments (MOM) electromagnetic modeling techniques

Programming Language: MATLAB, C

Fabrication and Testing Device: LPKF milling machine, Probe station, DCA, PRBS, Vector

Network Analyzers (VNA), Far-Field Antenna measurements using anechoic chamber, Near field

measurements, Signal generators, Oscilloscopes, Power meters and Power supplies

Very good writing skills: has experience in writing proposals for NASA and NSF

DETAILS OF WORK EXPERIENCE

Vortis Technology Inc., San Carlos, CA, USA:

Responsible for developing and improving the Next Generation Array Antennas for

Mobile Phones (GSM/PCS) and Tablets (3G+Wifi)

Responsible for ensuring all components and manufacturing actions are correct, well

documented, within budget, delivered on time and are able to meet quality assurance and

reliability goals

Research conducted in Photonics Technology Lab, Advanced Packaging Team, Intel

Corporation, Santa Clara, CA, USA:

RF-Signal Integrity:

Design and analysis of various pad layouts for high-speed FLIP-CHIP interconnects (to

IC’S, Antennas) using Ansoft HFSS

Developed a Broadband Design of the Differential Vias using 2D/3D electromagnetic

simulation tools (Ansoft Designer, Ansoft HFSS, ADS [Advanced Design System],

Momentum)

Design and analysis of High-speed differential transmission lines

Measured the IC Performance for high-speed transmission

Research for PhD., and Other Projects, Department of Electrical Engineering, University of

Mississippi, University, MS, USA:

Design of planar absorbing structures:

Graphene based planar high-impedance surface absorbers, Wideband and Multiband

planar high-impedance surface absorbers using wire media and periodic structures

Design of cloaking structures using sub-wavelength periodic structures

Design of electromagnetic band gap structures (EBGs) with stable angular response and wide-

band phase response

PIFA Antennas: Single band, Dual-band, Tri-band antennas for mobile phones

Wideband Reflectarray Antennas: Elements made of sub-wavelength square patches for

satellite communications

Frequency agility and multiband Microstrip Patch Antennas (single and array) for mobile

phones

Conformal antennas for low-profile antenna applications at microwave and low-terahertz

frequencies

Horn Antennas

Research for M.S., Department of Electrical Engineering, University of Mississippi,

University, MS, USA:

Microwave filters: Developed a dynamic model to analyze various two sided frequency

selective surface filters (working in the X-band) and validated the model using HFSS and

EMPiCASSO

Artificial Magnetic Conductors (AMCs) and Electromagnetic Band Gap (EBGs) structures:

Developed an analytical model to analyze various AMCs and EBG’s (working in the X-band) and

validated the model using HFSS and EMPiCASSO. Fabricated them using milling machine,

and measured the scattering parameters and radiation patterns using vector network

analyzer and anechoic chamber

Microwave Filter circuits, and Antenna measurements

Research for B.Tech., at Research Center Imarat, Government of India, Hyderabad, India:

Evaluated the validity of Image compression technique for black and white images using discrete

cosine transform, using MATLAB simulations

TEACHING EXPERIENCE

Undergraduate Courses Taught: Electromagnetic Theory, Microwave Engineering, Calculus

and Analytical Geometry, Engineering Analysis

AWARDS

Summer Graduate Research Assistantship from Graduate School, University of Mississippi,

2012

Travel Fellowship Award for the paper presentation in 2012 URSI National Radio Science

Meeting, Boulder, CO, 4-7 Jan. 2012

Graduate Research Assistant Fellowship from 2007 – present from Dept. of Electrical

Engineering, University of Mississippi

Graduate Research Award from the University of Mississippi, Summer 2008

ACTIVITIES AND MEMBERSHIPS

Student Member, IEEE, 2008

Student Member, Mississippi Academy of Sciences

Technical reviewer for ACES Journal

References furnished upon request

LIST OF PUBLICATIONS

Google Citations: http://scholar.google.com/citations?user=Us3g2NEAAAAJ&hl=en

BOOK CHAPTERS: (1)

A. B. Yakovlev, Y. R. Padooru, G. W. Hanson, and C. S. R. Kaipa, “Multilayered Wire Media:

Generalized Additional Boundary Conditions and Applications,” Ch. 10, InTech book on

Materials Science - Advanced Topics, Open access publisher, pp. 221-248, 2013.

http://dx.doi.org/10.5772/36937

PUBLICATIONS IN REFEREED JOURNALS: (7)

A. B. Yakovlev, Y. R. Padooru, G. W. Hanson, A. Mafi, and S. Karbasi, “A Generalized

Additional Boundary Condition for Mushroom-Type and Bed-of-Nails-Type Wire Media,”

IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 3, March 2011 (Impact

Factor: 2.08)

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, F. Medina, and F. Mesa, “Circuit Modeling of

Multi-band High-Impedance Surface Absorbers in the Microwave Regime,”Physical Review B,

Vol. 84, No. 3, 035108, July 2011 (Impact Factor: 3.48)

C. S. R. Kaipa, A. B. Yakovlev, G. W. Hanson, Y. R. Padooru, F. Medina, and F. Mesa,

“Enhanced Transmission with a Graphene-Dielectric Micro-Structure at Low-Terahertz,”

Physical Review B, Vol. 85, 245407, June 2012 (Impact Factor: 3.48)

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, F. Medina, F. Mesa, and A. W.

Glisson, “New Absorbing Boundary Conditions and Analytical Model for Multilayered

Mushroom-Type Metamaterials: Applications to Wideband Absorbers,” IEEE Transactions on

Antennas and Propagation, Vol. 60, No. 12, December 2012 (Impact Factor: 2.01)

Y. R. Padooru, A. B. Yakovlev, P. Y. Chen, and A. Alù, “Analytical Modeling of Conformal

Mantle Cloaks for Cylindrical Objects using Sub-Wavelength Printed and Slotted Arrays,”

Journal of Applied Physics, Vol. 112, No. 3, 034907, August 2012 (Impact Factor: 2.168)

Y. R. Padooru, A. B. Yakovlev, P. Y. Chen, and A. Alù, “Line-Source Excitation of Realistic

Conformal Metasurface Cloaks,” Journal of Applied Physics, Vol. 112, No. 10, 104902,

November 2012 (Impact Factor: 2.168)

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, F. Med ina, and F. Mesa, “Dual

capacitive-inductive nature of periodic graphene patches: transmission characteristics at low-

terahertz frequencies,” Physical Review B, Vol. 87, No. 11, 115401, March 2013 (Impact Factor:

3.48)

P. Y. Chen, J. Soric, Y. R. Padooru, A. B. Yakovlev, and A. Alù, “Nanostructured Graphene

Metasurface for Tunable Terahertz Cloaking,” (Under Review)

PUBLICATIONS IN CONFERENCE PROCEEDINGS: (20)

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, F. Medina, and F. Mesa, “Dual

capacitive-inductive nature of graphene metasurface: transmission characteristics at low-terahertz

frequencies,” 2013 IEEE AP-S International Symposium on Antennas and Propagation and

USNC/URSI National Radio Science Meeting, Lake Buena Vista, Florida, USA, July 7-12, 2013

Y. R. Padooru, A. B. Yakovlev, P. Y. Chen, and A. Alù, “Analytical Modeling of Realistic

Conformal Metasurface Cloaks with a Line-Source Excitation,” META'13, 4th International

Conference on Metamaterials, Photonic Crystals and Plasmonics, Sharjah, United Arab Emirates,

March 18-22, 2013, (invited paper)

S. I. Maslovski, M. G. Silveirinha, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, P. A. Belov, O.

Luukkonen, I. S. Nefedov, C. R. Simovski, S. A. Tretyakov, Y. R. Padooru, and E. Forati,“Recent

Advances in the Analytical Modeling of Wire Media Based Metamaterials with Microwave and

Terahertz Applications,” 2013 International Symposium on Electromagnetic Theory (EMTS 2013),

Hiroshima, JAPAN, 20-24 May 2013 (Invited)

A. B. Yakovlev, S. I. Maslovski, M. G. Silveirinha, C. S. R. Kaipa, G. W. Hanson, P. A. Belov, O.

Luukkonen, I. S. Nefedov, C. R. Simovski, S. A. Tretyakov, Y. R. Padooru, and E.

Forati,“Homogenization of wire media for the efficient analysis of practical metamaterial structures

at microwave and terahertz frequencies,” META'13, The 4th International Conference on

Metamaterials, Photonic Crystals and Plasmonics, Sharjah, United Arab Emirates, March 18-22,

2013, (Keynote talk)

Y. R. Padooru, A. B. Yakovlev, P. Y. Chen, and A. Alù, “Analytical modeling of conformal

metasurface mantle cloaks for cylindrical objects,” Metamaterials 2012: The Sixth International

Congress on Advanced Electromagnetic Materials in Microwaves and Optics, pp. 426-428, St.

Petersburg, Russia, 17-22 September, 2012

A. B. Yakovlev, M. G. Silveirinha, S. I. Maslovski, C. S. R. Kaipa, P.A. Belov, G. W. Hanson, O.

Luukkonen, I. S. Nefedov, C. R. Simovski, S. A. Tretyakov, and Y. R. Padooru, “Review of recent

progress on the homogenization theory and applications of wire media,” Metamaterials 2012: The

Sixth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics,

pp. 426-428, St. Petersburg, Russia, 17-22 September, 2012

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, F. Medina, F. Mesa, and A. W.

Glisson, “Generalized Additional Boundary Conditions and Analytical Model for Multilayered

Mushroom-Type Wideband Absorbers,” 2012 IEEE AP-S International Symposium on Antennas

and Propagation and USNC/URSI National Radio Science Meeting, Chicago, Illinois, USA, July 8-

14, 2012

Y. R. Padooru, A. B. Yakovlev, P. Y. Chen, and A. Alù, “Mantle Cloaking Using Sub-Wavelength

Conformal Metallic Meshes and Patches,” 2012 IEEE AP-S International Symposium on Antennas

and Propagation and USNC/URSI National Radio Science Meeting, Chicago, Illinois, USA, July 8-

14, 2012

C. S. R. Kaipa, A. B. Yakovlev, G. W. Hanson, Y. R. Padooru, F. Medina, and F. Mesa, “Low-

Terahertz Transmissivity and Broadband Planar Filters using Graphene-Dielectric Stack,” 2012

IEEE AP-S International Symposium on Antennas and Propagation and USNC/URSI National

Radio Science Meeting, Chicago, Illinois, USA, July 8-14, 2012

A. B. Yakovlev, M. G. Silveirinha, S. I. Maslovski, C. S. R. Kaipa, P. A. Belov, G. W. Hanson, O.

Luukkonen, I. S. Nefedov, C. R. Simovski, S. A. Tretyakov, and Y. R. Padooru, “Recent

Advances in the Homogenization Theory of Wire Media with Applications at Microwaves, THz,

and Optical Frequencies,” 2012 IEEE AP-S International Symposium on Antennas and Propagation

and USNC/URSI National Radio Science Meeting, Chicago, Illinois, USA, July 8-14, 2012

C. S. R. Kaipa, A. B. Yakovlev, G. W. Hanson, Y. R. Padooru, F. Medina, and F. Mesa, “Low-

Terahertz Transmissivity with a Graphene-Dielectric Microstructure,” IMS 2012: IEEE MTT 2012

International Microwave Symposium, Montreal, CANADA, 17-21 June 2012

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, G. W. Hanson, F. Medina, F. Mesa, and A. W.

Glisson, “Absorbing Boundary Conditions and Homogenization Model for Multilayered Wire

Media,” 2012 USNC/URSI National Radio Science Meeting, CO, USA, Jan. 4-7, 2012

Y. R. Padooru, A. B. Yakovlev, C. S. R. Kaipa, F. Medina, and F. Mesa, “Multi-band High-

Impedance Surface Absorbers with a Single Resistive Sheet: Circuit Theory Model,” 2011 IEEE

AP-S International Symposium on Antennas and Propagation and USNC/URSI National Radio

Science Meeting, Washington, USA, July 3-8, 2011

Y. Mao, Y. R. Padooru, K. F. Lee, A. Z. Elsherbeni, and F. Yang, “Stripline and Aperture Coupled

Feed Rectangular Patch Antennas with Air Gap,” 2011 IEEE AP-S International Symposium on

Antennas and Propagation and USNC/URSI National Radio Science Meeting, Washington, USA,

July 3-8, 2011

C. S. R. Kaipa, A. B. Yakovlev, F. Medina, F. Mesa, and Y. R. Padooru, “Sub-wavelength

Transmission Through Stacked Two-dimensional Metallic Patches: A Circuit Model Perspective,”

2011 IEEE AP-S International Symposium on Antennas and Propagation and USNC/URSI

National Radio Science Meeting, Washington, USA, July 3-8, 2011

A. B. Yakovlev, G. W. Hanson, A. Mafi, Y. R. Padooru, and S. Karbasi, “Modal Propagation on

Thin Metal Mushroom-Type Surfaces in the Transition to Bed-of-Nails-Type Wire Media,” 2011

IEEE AP-S International Symposium on Antennas and Propagation and USNC/URSI National

Radio Science Meeting, Washington, USA, July 3-8, 2011

P. Nayeri, Y. R. Padooru, F. Yang, A. B. Yakovlev, and A. Z. Elsherbeni, “Sub-wavelength Multi-

layer Elements for Broadband Reflectarray Antennas,” 2010 IEEE AP-S International Symposium

on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting, Toronto, Canada,

July 11-17, 2010

A. B. Yakovlev, Y. R. Padooru, S. Karbasi, G. W. Hanson, and A. Mafi, “Nonlocal

Homogenization Model for the Analysis of Absorbing Properties of Mushroom Structures with

Graphene Patches at Microwaves,” 2010 IEEE AP-S International Symposium on Antennas and

Propagation and CNC-USNC/URSI Radio Science Meeting, Toronto, Canada, July 11-17, 2010

(invited paper to special session)

A. B. Yakovlev, C. S. R. Kaipa, Y. R. Padooru, F. Medina, and F. Mesa, “Dynamic and Circuit

Theory Models for the Analysis of Sub-wavelength Transmission Through Patterned Screens,”

Third International Congress on Advanced Electromagnetic Materials in Microwaves and Optics –

Metamaterials 2009, London, UK, 30 August - 4 September 2009, pp. 671-673

A. B. Yakovlev, C. S. R. Kaipa, Y. R. Padooru, F. Medina, and F. Mesa, “Sub-wavelength

Transmission Through Multilayered Arrays of Patches/Slots: Analytical and Circuit Theory

Models,” USNC/URSI National Radio Science Meeting, Charleston, SC, USA, 1-5 June, 2009, 1 p

PUBLICATIONS IN REGIONAL CONFERENCE PROCEEDINGS: (7)

Yashwanth R. Padooru and Alexander B.Yakovlev, “Design of Capacitive Circuit Absorbers

using Circuit Theory Model,” 2011 Mid-South Annual Engineering and Sciences Conference,

Memphis, TN, May 2011

Yashwanth R. Padooru and Alexander B.Yakovlev, “A Comparative Study of Absorption

Mechanisms using Mushroom-Type High Impedance Surfaces,” 2011 Mid-South Annual

Engineering and Sciences Conference, Memphis, TN, May 2011

Y. Mao, Y. R. Padooru, K. F. Lee, A. Z. Elsherbeni, and F. Yang, “Patch Antenna with

Reconfigurable Resonant Frequency Using Adjustable Air Gap,” 2011 Mid-South Annual

Engineering and Sciences Conference Memphis, TN, May 2011

Yashwanth R. Padooru and Alexander B.Yakovlev, “Analytical Modeling of Artificial Impedance

Surfaces,” 2009 Mid-South Annual Engineering and Sciences Conference, Memphis, TN, May

2009

Yashwanth R. Padooru and Alexander B.Yakovlev, “Design and Analysis of Homogenized High

Impedance Surfaces,” 2008 Mississippi Academy of Sciences Annual Meeting, Olive Branch, MS,

February 20-22, 2008

Yashwanth R. Padooru and Alexander B.Yakovlev, “Analytical Modeling of High Impedance

Surfaces,” 2008 Mississippi Academy of Sciences Annual Meeting, Olive Branch, February 2008

Yashwanth R. Padooru and Alexander B.Yakovlev, “Analysis of High Impedance Surfaces,”

2008 Sigma Xi poster Symposium, University, MS, April 2008

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