Mixed Signal Design Verification

IVAN KRIVOKAPIC

**** ******** ******, *** *****, California 92122 858-***-**** **********.****.****@*****.*** 1 P a g e

SUMMARY OF QUALIFICATIONS

• Results-oriented, innovative, and performance-focused professional with broad-based management experience in RF/Mixed Signal and Communications systems engineering

• Equipped with well-defined technical, communication, analytical, interpersonal, and problem-solving skills, along with effectiveness in building positive relationships and working collaboratively with professionals of all levels

• Hands-on leader; well-versed in supervising medium-sized groups and small multidisciplinary engineering teams, which involved RF ASIC Design/Antenna Design, System Integration, and Design Verification Expert at overseeing operational strategies; improving processes; formulating innovative solutions; developing strategic plans; and driving high-quality, under-budget, and timely project completions toward productivity and attainment of organizational objective

• Concept-to-execution driver with adeptness in executing engineering processes including architecture specification, design reviews and design verification processes as well as in generating system architecture-level design documents and proposals and presentations for the executive management

• Well-versed in radio links system definition such as RF spectrum management, link budget and margin analysis along with RF system frequency planning

• Expert level in RF systems/block-level specification and analysis, which entailed communication systems architecture, RF modulation schemes trade-offs, signal detection/processing/analysis as well as blockers, spurious intermodulation, interference, noise, gain performances analysis; In-depth knowledge of Wi-Fi, UWB OFDM

(WiMedia), CDMA, WCDMA

• Skilled at antennas, antenna phased arrays, microwave elements design and 3D EM propagation modeling, encompassing MICS band antennas for human implantable devices; UWB antennas and phased arrays; microwave TRL-based filters and quadrature couplers; and 3D FDTD-based EM wave propagation studies for UWB application

• Expert-level design of RF/microwave circuitry (lumped and TRL based), LNAs, power amplifiers, mixers, matching circuitry, as well as high-speed logic, mixed signal circuitry

• Well capable of conducting system-level measurement, characterization and debugging; measurement automation

(LabView), measurement data processing, test plans definition; FCC certification process management; Antenna test ranges design and implementation

• Proficient in implementing embedded systems using C-based control, calibration, tracking algorithms, and low-level device drivers; experienced in microcontroller firmware development and CPLD/FPGA – Verilog synthesis and simulation.

• Technically skilled with system simulation tools such as MATLAB, C, and ADS Ptolemy; circuit simulators including Ansoft Designer, ADS, PSPICE and AWR Microwave Office; 3D EM simulators such as CST Microwave Studio; Schematic capture tools like OrCAD; and test instrumentation automation using LabView. AREAS OF EXPERTISE

Management/Technical Leadership RF/Mixed Signal Board Level Design RF/Mixed Signal and Communication Systems Architecture Specification and Analysis Antennas and Microwave Elements Design Full Wave Electromagnetic Propagation Modeling Control, Calibration, and Tracking Algorithms System Characterization and Design Verification PROFESSIONAL EXPERIENCE

Pulse~Link • Carlsbad, CA, USA

Director, Radio Frequency (RF) Systems Engineering Jan 2015–Present Provided strategic leadership and applied hands-on experience, successfully executing the following key company projects:

Wi-Fi 7 based Distributed Antenna System: Designed of system architecture, including component definition and RF/mixed signal/digital blocks, tailored for MDUs and commercial use, achieving overall data throughput of 10Gbps.

Wireless DOCSIS Adapters: Developed system architecture and system components design (for the “TV White Space”/ISM bands wireless DOCSIS fiber node and cable modem adapters, enabling operation over distances up to 2km for rural Internet subscribers. Project was sponsored by CableLabs. IVAN KRIVOKAPIC

6222 Lakewood Street, San Diego, California 92122 858-***-**** **********.****.****@*****.*** 2 P a g e

UWB Modem Allowing for the Coexistence with DOCSIS 3.1 and MoCA: Implemented the overall architecture, system, and RF/mixed signal design for a proprietary UWB modem, achieving a 2.7Gbps data rate while ensuring compatibility with DOCSIS 3.1 and MoCA standards.

Career Highlights:

Project management including project planning, budget allocation and hiring

Served as driving force and implementer in creating multiple unique architectures, circuitry designs, and related algorithms enabling wireless applications and UWB cable modem-based technology MaxLinear • Carlsbad, CA, USA

Senior Manager, Systems Engineering Oct 2013–Jan 2015

Provided hands-on management and technical guidance to 10-30 engineers in charge of performing DVBS ODU/MDU SoC design verification and characterization, EVK reference design creation, system integration, ATE development, and customer support

Demonstrated technical skills in implementing system development, specification, and line-up of DOCSIS3.1 compliant remote CMTS infrastructure SoC modulator incorporating 160 QAM +5 OFDM channels

Generated methodology for full-automated design verification procedure with limited engineering support Senior Principal, Systems Engineer Jan 2013–Oct 2013

Acted as systems and technical lead for two flavor of Ku band broadcast satellite DVBS channel and band stacking SoC

Held full accountability for overall system line-up and requirements, design characterization specification, and reference design, while effectively resolving non-complying DiSEqC, FSK, and ADC interfaces by initiating innovative systems architecture solutions

Olympus Communication Technology of America • San Diego, CA, USA Director, RF Systems Engineering Jan 2009–Oct 2012

Led the establishment of the Olympus RF group by recruiting team, organizing RF laboratory, specifying test equipment, and creating and executing antenna test range from UHF to Ku bands.

Acted as a leader of RF Systems Group responsible for the overall planning, technical leadership, and team coaching Career Highlights:

Maintained active involvement with RF group key projects, which involved the following:

− UWB WiMedia-based Video Streaming for Wireless Medical Monitoring, in charge of designing UWB directional and omnidirectional antennas for S/X bands; building four-antenna active beamforming UWB

(C/X band) video streaming radio modem; Creating WiMedia active beam forming compliant UWB Analog Front end supporting RFIC architecture; Carrying out 3D FDTD EM simulations targeting UWB propagation study in the specific environment; and developing low outage probability band group 1 (S/C band) UWB radio link based on a maximum ratio combining directional antennas, thus attaining range improvement over conventional system.

− Heart Monitoring and Defibrillation Implantable Wireless Device, which involved architecting, selecting, and modulating scheme; simulating and specifying ultra-low power 400MHz UHF ASIC RF front end; initiating comparative power consumption study based on ASIC RF block implementation in 65/90nm RF CMOS process designed by Subcontracted IC Team; facilitating FDTD propagation studies simulation on human body model; designing various implantable and circular polarization access point antennas and generating supporting auto-tuning circuitry and antenna tuning algorithms Pulse~Link Inc. • Carlsbad, CA

Director, RF Systems Engineering Jan 2006–Dec 2008

Provided technical leadership to RF ASIC, RF Systems, and Design Verification teams

Initiated definition of RF system architectures and hardware implementation for direct sequence UWB wireless and coax system allowing for distribution of multiple HDTV streams and multimedia content over both, coax, and wireless connections simultaneously

Performed architecture and rendered detailed specifications for the new generation of highly integrated direct sequence UWB front end ASIC in 0.13um, Si-Ge BiCMOS process

Directed ASIC Group consisting of four ASIC designers, two layout engineers, and group of ASIC designer contractors from the initial design to the tape-out

Assisted with reference design of the cable and wireless UWB solution, as well as coordinated and led the company’s first successful UWB wireless data modem FCC type approval IVAN KRIVOKAPIC

6222 Lakewood Street, San Diego, California 92122 858-***-**** **********.****.****@*****.*** 3 P a g e

STMicroelectronics • La Jolla, CA

Principal RF System Engineer Mar 2004–Jan 2006

Conducted RF system design of the CDMA-2000 RF ASIC chipset (receiver and transmitter) in Nokia/ST CDMA RF ASIC Joint Development Team

Handled system architecture, system studies and analysis, receiver dynamic power consumption optimization, system requirements, modeling, and frequency planning

Served as an active member of ST Advanced Radio Architecture Group responsible for the RF architecture and system design for the 801.11/a/b/g/n transmitter 65nm CMOS ASIC block

Maintained proactive involvement with the STMicroelectronics Wireless Technology Patent Comity

Generated minimal specifications for the CDMA-2000/1xDO diversity receiver, as well as coordinated frequency planning and created CDMA transceiver ASIC and GPS receiver integration prior to pilot ASIC implementation Career Highlights:

Led the development of “C” and MATLAB behavioral models for the CDMA receiver and transmitter performance optimization, which attained significant power savings in transmitter and the receiver ASICs

Carried out detailed system study of the spurious and phase noise performances of the fractional-N PLL synthesizer to the CDMA transmitter performances with practically applicable results EARLIER CAREER

Pulse~Link • Carlsbad, CA, USA

Principal RF Engineer 05/2003 – 02/2004

Graviton • La Jolla, CA, USA

Principal RF Engineer 05/2001 – 02/2003

Flextronics - System Design Group • San Diego, CA

Senior RF Hardware Engineer 04/2000 – 05/2001

Quake Wireless, • San Diego, CA

Senior Electrical Engineer 07/1999 – 04/2000

ADC Telecommunications, Wireless Division • San Diego, CA Design Engineer 08/1996 – 07/1999

EDUCATION

Doctor of Philosophy in Electrical Engineering – University of Belgrade Master of Science in Electrical Engineering – University of Belgrade Bachelor of Science in Electrical Engineering – University of Belgrade PROFESSIONAL AFFILIATION

Institute of Electrical and Electronics Engineers (IEEE) PATENTS

I. Krivokapic, Ultra-wideband correlating receiver; US7020224, US6980613. I. Krivokapic, Circuit and Method for Reducing Mobile Station Receiver Power Consumption by Dynamically Controlling Linearity and Phase Noise Parameters; US7457607. I. Krivokapic, T. Divel; Local oscillator with injection pulling suppression and spurious products filtering; US8374283B2. I. Krivokapic, Bicone antenna; US8576135 B1.

I. Krivokapic, Planar multilayer high-gain ultra-wideband antenna; US8717245 B1. I. Krivokapic, T. Fukuda, Asymmetric UWB radio link for wireless medical device; US875034 5B1. I. Krivokapic et al, Low-power narrow and wide band receiver system; US8761307. I. Krivokapic, Immersible UHF Antenna with Low Power Auto Tuning System; US8868014. I. Krivokapic, Extended Spectrum TDMA Signal Switching Cable Tap Box; US11343008B2 I. Krivokapic, Extended Spectrum TDMA Upstream and Downstream Cable Amplifier; US11894814B2036795A1

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