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Ahmad Chamseddine, Ph.D, P.Eng Email: adjh18@r.postjobfree.com

Highlights Technical Lead in RF/Antenna engineering

Design, implementation and testing of a multiband phased array antenna for a spaceborne synthetic aperture radar (SAR)

Expert level in EM modeling and prototyping of planar and 3D antennas, and antenna arrays

Expert knowledge of antenna testing in near-field ranges

Performed thorough EMI/EMC de-risking tests of multi-radio Smart Antennas

System design and RF circuit design of a direct-detection high-sensitivity receiver (noise-adding radiometer) in the microwave and millimeter-wave frequency bands for traffic monitoring and remote sensing

Experience in Analog/RFIC CMOS MMIC design, including designs in 0.35μm with 3.3 and 25 V supply, RF CMOS Silicon-on-Sapphire in 0.5 and 0.25μm, and GaAs p-HEMT technology in 0.2μm with an Ft of 65GHz

Excellent communication skills to produce regular reports, analyst briefings and in-depth technical analysis reports for customers

Experience SR SOLUTION CONSULTANT Dassault Systemes – Vancouver/Santa Clara CA August ’18 – To Present

Appling my expert-level understanding of SIMULIA proprietary technologies to provide in- depth expertise of millimeter-wave frequencies and electromagnetics to customers to ensure the most efficient use of DS solutions

Capturing customer requirements and deploy electromagnetic simulation methods and best simulation practices to increase customer productivity, efficiency, and confidence in design decisions

Engaging with customers to understand their design challenges and position SIMULIA CST Electromagnetics solutions and to meet customers’ business requirements HEAD OF MICROWAVE & ANTENNAS ENGINEERING Urthecast Corp. – Vancouver April ’15 – July ‘18

Lead engineer of the dual-polarization dual-band (X and L bands) phased array antenna design and implementation with its feeding networks for a SAR satellite. Responsibilities:

Conducted all aspects of a novel dual band phased array antenna product development cycle including the conceptual design, full 3D EM analysis, optimization and test, project technical reports, material selection and cost report.

Created subsystem level technical specifications, design documents, test plans and test procedures to meet SAR system level requirements.

Sensitivity analysis of the manufacturing and assembly tolerances of the phased array and its feed networks on the radiation performance.

Performed basic system and component level DFMEA.

Detailed 3D multipaction breakdown analysis, and optimization of the array impedance matching to meet the SAR Systems power and thermal requirements.

Reviewing and approving all test data and preparing final test reports.

Selection of materials suitable for space applications, identifying key manufacturing processes, and understanding of their mechanical and thermal behavior.

Measured outstanding performance despite the tight schedule and cost budgets.

Provided mentorship and design guidance for RF Engineers. Page 2 of 4

PRINCIPAL ANTENNA ENGINEER NovAtel Inc. – Calgary AB July ’09 – March ’15

Conducted full-wave electromagnetic modeling, simulation and testing of high-end geodetic antennas for the Global Navigation Satellite System (GNSS) applications. Key tasks:

Created and led the Antenna Technology Roadmaps and critical design reviews.

Performed key EM design modeling of patch and spiral phased arrays, planar spiral antennas with their feed networks, and NSI radiation pattern anechoic chamber testing.

Designed and qualified GPS anti-jamming Controlled Reception Pattern Antennas.

Selected innovative concepts with the R&D and RF/HW groups to bring new design ideas to product development level.

Managed critical EMI/EMC testing procedures, and proposed solutions to bring to success complex multi-radio smart antennas (UHF/PCS/GPS/Wi-Fi).

Identified and recommended key design items to maintain product line competitiveness

Successfully modeled and designed complex 3D antennas.

Engaged the mechanical and NPI teams in early design phases to ensure a smooth progression from concept to completion.

Tested and approved final antenna specs for geodetic antenna.

Set new requirements for NovAtel’s next generation RF front-end subsystem.

Challenged existing product design process, and proposed new Antenna & RF Front-end design approaches to improve products ROI.

SR R&D ENGINEER Okanagan Research & Innovation Centre Penticton BC, May ’07 – June ’09

Led projects for several start-ups in a Technology Business Incubator.

Managed to bring innovative ideas from fiction to real pilots.

Hired and managed small group of hardware/software engineers in a start-up environment.

Successfully led to success several challenging wireless-based projects: mainly an indoor wireless sensor network system for collision avoidance in a mobile equipment safety system.

Implementation of a new spread-spectrum real-time multi-point to multi-point ranging system for indoor safety application.

Design, fabrication and testing of on-body wearable planar antennas at 2.45GHz.

Performed feasibility study of fabric antennas, process and performance.

Adopted a pro-active approach and acquired a strong ability to understand a variety of engineering challenges (mechanical, electrical, firmware) and how they impact schedules.

Applied and obtained Federal & Industrial grants for advanced research projects in the RF/wireless applications.

SR WIRELESS ENGINEER Gennum Corporation – Burlington ON Oct. ’06 – April ’07

Member of the RF/Wireless R&D team developing RF Low-Power wireless Hearing Aids.

Designed electrically small antennas at 928MHz along with their testing procedure. Body effect on antenna efficiency and device performance was extensively examined.

IC and PCB Testing/Troubleshooting, including Gain/Noise Figure measurements. ICORE POSTDOCTORAL RESEARCH ASSOCIATE University of Calgary June 2004 – Sept. 2006

Developed RF self-configuring systems for wireless applications. Page 3 of 4

Designed RF tunable matching networks in CMOS Silicon-on-Sapphire technology at 1.9 GHz. Tuning was achieved using switched-capacitor techniques using low loss planar inductors and RF switches (SPDT).

Designed Pi-matching networks cascaded with a phase shifter were necessary to match severely mismatched loads with VSWR 5 and higher, and with power handling superior to

+15 dBm.

Designed RF sub-blocks such as 10 dB directional coupler, and on-line VSWR detectors as part of the network. The design was then ported to an RF CMOS 90nm process to compare their performances.

Investigated the EM design and optimization of integrated electrically small antennas at 2.4GHz dedicated to wireless bioelectronics sensors. ANALOG DESIGN ENGINEER Alcatel Microelectronics – Belgium June 2002 – Oct. 2003

Designed and simulated an Analog Specific Cell Library in 0.35µm CMOS process. Devices worked on first silicon. Cells included:

Linear Voltage Regulators using High / Low-Voltage 0.35µm CMOS technology.

Tunable IxC Oscillator in the MHz frequency range.

Low noise Operational Amplifiers (40nV/ Hz at 1kHz, CMOS 0.35µm).

Fast comparators (including adapting standard ESD designs to my application).

Various digital gates with advanced timing characterization (Flip-Flops, delay circuits…).

Developed ASIC specification according to customer requirements. PHD CANDIDATE (Hons) University of Lille – France

1997 – 2001

Developed a real-time direct-detection noise-adding radiometer for traffic control and remote sensing. A radiometer is a highly sensitive passive receiver which is capable of detecting the very low thermal emissions of non-metal objects seen by its antenna. The project consisted of two steps: First generation: designed and implemented a microwave receiver and Vivaldi antenna prototype at 4 GHz to validate the noise-adding calibration technique in a real-time operation. The system provided a thermal sensitivity of 0.6K, which is the minimum detectable object’s temperature variation, with 40 ms of integration time.

Second generation: designed and implemented the front-end in the millimeter-wave frequency band (53 GHz) using 0.2μm pHEMT GaAs transistor technology. The system was tested and qualified as a passive radar for objects detection. The main highlights of the projects:

Managed all system level design aspects, and defined system specifications in terms of noise figure, gain, RF bandwidth, calibration noise, and radiometric resolution.

Design of broadband planar antennas with linear and exponential apertures (Vivaldi antenna). Fabrication using Hybrid technology on thin alumina and TMM6 substrates.

Design and optimization of wide-band low-loss slotline to microstrip line matching transitions at 4 and 52 GHz.

Design of a quarter-wave Fresnel zone plate lens at 53 GHz. Measured beamwidth is 3º.

Design of a MMIC Low Noise Amplifier (Noise Figure = 4dB and Gain = 27 dB at 53 GHz), and optimization of MMIC Mean-Power amplifier (Gain = 21 dB at 53 GHz).

Design of RF square-law detectors, using a biased hybrid GaAs Schottky diode and a biased monolithic normally-on HEMT transistor, to stringent sensitivity and noise specifications. A measured TSS of –40 dBm has been obtained at 53 GHz. Page 4 of 4

Design of an active noise source diode for system gain calibration, with embedded printed- board RF couplers on alumina substrate. The noise source worked in switched-mode and provided an ENR of +20 dB at 53 GHz.

Board level design of a low-frequency, low-noise, base-band amplification stage. The system was interfaced to a data acquisition card for real–time digital signal processing. The minimum measured radiometric sensitivity was 0.15 K for a 5 second of integration time. The final prototype was the first of its kind successfully operating in the millimeter-wave frequency band.

M.Sc CANDIDATE University of Lille – France 1996 – 1997 Research was focused on the analysis and design of ultra-fast low-power digital frequency dividers in 0.2µm pHEMT process.

Designed two testchips. Cut-off frequencies of 3 and 5 GHz were obtained for DCFL and BDCFL architectures, respectively.

CAD tools Extensive experience in:

Agilent’s Advanced Design System (ADS), RF Designer, and Momentum.

3D EM antenna modeling packages: HFSS, CST Microwave Studio, SPARK3D.

Cadence tools: Analog Artist and Virtuoso for schematic design and Custom IC Layout.

PSPICE, Matlab, DOORS, JAMA, C, Microsoft VISIO and MS office. Main

publications A. Chamseddine, J. W. Haslett, and M. Okoniewski, “CMOS Silicon-On-Sapphire RF Tunable Matching Networks” EURASIP Journal on Wireless Communications and Networking, Vol. 06, Issue 2 (Apr. 2006). H. Yan, S. V. Hum, A. Chamseddine, J. W. Haslett, and M. Okoniewski, “Tunable RF Circuits Using Switches and Sectioned Transmission Lines”, The 16th International Conference on Wireless Communications, Calgary, Canada, July 2004.

A. Chamseddine, et al., "Real-Time Low-Cost Passive Imaging System for Automotive Applications", IEEE Vehicular Technology Conference Fall 2000, Boston USA, Sept. 2000. First author of several issued and pending patents related to RF/Antenna applications. Education PHD in Electrical Engineering (Hons.) University of Science and Technology of Lille, 2001 Thesis: Design and Implementation of a Real-Time Direct-Detection Passive Imaging System in the Millimeter-Wave Frequency Band

MSC in Electrical Engineering University of Lille (USTL) 1997 Thesis: Design and Development of a Microwave Digital Frequency Divider Using the p-HEMT Technology

BSC in Electrical Engineering Lebanese University, Beirut, 1996 Professional Registered as Professional Engineer with APEGA (Alberta). Membership IEEE Member

Languages Fluent in English and French.

Contact 994 Chipman Dr, Milpitas, CA, 95035, USA Phone: 781-***-**** Information

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