Expert Details

Expert in Radio Frequency / Analog / Mixed-Signal Integrated Circuit Design. Wireless Communications.

Expert ID: 724336 California, USA

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Expert has designed Radio Frequency/ Analog/Mixed-Signal integrated circuits for over 21 years. He has successfully lead projects and designed products from concepts to mass production in the wireless and hard disk drives industries. He has design integrated circuits in CMOS/BiCMOS/Bipolar processes using commercial and proprietary foundries. He has design circuits for different standards such as WLAN (IEEE 802.11/a/b/g); cellular handsets (GSM/WCDMA); Digital cordless telephones (ISM 900MHz/2.4GHz band); Silicon TV Tuner (DVB-H, DVB-T, NTSC, PAL, SECAM); GPS; Bluetooth; Hard disk drives. Furthermore he has experience in Design Automation, Applications Engineering, and System Verification in Military Aircraft System.

Expert has experience reviewing patents of Linear Power Amplifier for Wireless and Wireline Applications. He has reviewed the entire Power Amplifier profolio for Alcatel-Lucent. He has designed Bipolar and CMOS RF Low Noise Amplifer for receivers and RF Power Amplifiers for transmitters in WiFi and Cordless Phones. The WiFi CMOS Transceiver was awarded in Computek. He has designed and resolved design issues in 20dBm 55% efficiency power amplifier for 900MHz Digital Spread Spectrum Cordless telephones. This product was shipped in high volume and generated multimillion dollars of revenue. He designed the 2.4GHz frontend for the industry first 2.4GHz Digital Cordless telephone transceiver.

He has lead transceiver projects and designed various blocks. He has worked on chips that use Direct Conversion, Low-IF, & Dual conversion architectures. He has hands on design experience in RF frontends, baseband filters, Wide-band programmable gain amplifiers, baseband amplifiers, up converters, RF power amplifiers, RF power amplifier drivers & power control circuitry. He has spreadheaded development of on chip voltage control oscillators while at Conextant. Expert has 9 issued patents, 4 patents related to voltage control oscillator (VCOs), 3 patents related to DC offset correction in receiver baseband section, 2 patents related to RF TV tuners. He has production ICs in Samsung and Sagem GSM cellular phones; Sony & Uiden Digital Cordless telephones; WiFi certified WLAN IEEE a/b/g combo.

Expert has worked on different mixed-signal circuits for wireless and hard disk driver channel ICs. He has designed numerous baseband filters; one of them is a 100KHz channel selection gm-C filter which is in production Sagem GSM phones. He has also works on various programmable filters for read channel disk drives. One of the 3V gm-C filters was presented in ESSCirC on Sept 1994 and it was published in JSSC on July 1995. He has designed sub micron CMOS Analog Intellectual property Circuits (IPs) for digital baseband Circuits, circuits such as crystal oscillators (XOSC), linear regulators, & power management circuits.

He has spreadheaded on chip VCO development while working at Conextant. Integrated VCOs reduced the cost of built of materials (BOMS), it brings about significant cost reduction to the handset market. He has contributed putting together a Company wide VCO pattern portfolio. He has 4 issued patents related to VCO design. He worked on LC VCOs, colpitts VCOs & crystal oscillators.

Review the entire Wireless and Wire-line Linear Power Amplifier portfolio for Alcatel-Lucent for patent licensing and litigationDesign RF CMOS Global Position System (GPS)Design and develop automated test solution for aircraft LRUDevelop RF device database based on Ontology for Semantic web


Year Degree Subject Institution
Year: 1990 Degree: M.S Subject: Electrical Engineering; specialized in Circuit & Device Institution: Michigan State University
Year: 1988 Degree: B.S. Subject: Electrical Engineering; specialized in Computer Engineering Institution: Michigan State Univerisity

Work History

Years Employer Title Department
Years: 2006 to Present Employer: Undisclosed Title: Owner / Principle Design Engineer Department:
He provides consulting service to the integrated circuit design companies. He provides services such as design, develop, review, debug & test Radio Frequency/Analog/Mixed-Signal Integrated Circuits. Example:
Design RF CMOS Global Positioning System (GPS) receiver. RF power amplifier patent review. Automated test solution for aircraft LRU. Build RF devices database based on Ontology for Semantic web
Years Employer Title Department
Years: 2008 to 2012 Employer: Boeing Title: Principle Electrical Engineer Department:
Test Hardware Procurement. Automated System Verification for Line Replacement Unit (LRU) and
Aircraft wiring for Avionics upgrade. Assist Senior Manager in acquiring new business and daily group
Years Employer Title Department
Years: 2005 to 2006 Employer: TrueSpan Inc Title: Senior RFIC Design Engineer Department:
He designed & developed CMOS RFIC Tuner for DVB-H system.
Years Employer Title Department
Years: 2002 to 2005 Employer: Orion Microelectronics, Inc. (An Realtek Group Company) Title: RFIC Design Manager Department:
He managed TV Tuner and Wireless LAN projects. He designed & developed CMOS RFIC for DVB-T/Analog TV, IEEE 802.11 a/b/g systems.
Years Employer Title Department
Years: 1999 to 2002 Employer: Conexant Systems, Inc. Title: Group Leader / Principle RFIC Design Engineer Department:
He managed the GSM RFIC Design Group. He managed Cellular & Cordless Telephone RFIC projects. He designed & developed BiCMOS RFIC for GSM, WCDMA, Bluetooth & Digital Cordless Telephone.
Years Employer Title Department
Years: 1996 to 1999 Employer: Rockwell Semiconductor Systems, Inc Title: Senior Staff RFIC Design Engineer Department:
He managed RFIC projects for Digital Cordless Telephone. He designed & developed BiCMOS/Biploar RFICs for Digital Cordless Telephone.
Years Employer Title Department
Years: 1991 to 1996 Employer: Silicon Systems, Inc. (A TDK Group Company) Title: Senior Mixed-Signal Design Engineer Department:
He designed & developed BiCMOS/Bipolar Mixed-Signal IC for Read Channel Hard Disk Drive systems.

Career Accomplishments

Associations / Societies
Publications and Patents Summary
He has 9 patents and 6 publications in Radio Frequency / Mixed Signal Integrated Circuit area.

Language Skills

Language Proficiency
Cantoness Cantoness is his native language, in which he can speak, write & read fluently Read and Write Chinese.

Fields of Expertise

integrated-circuit design, bipolar integrated circuit, custom integrated circuit, electronic circuit design, high-frequency integrated circuit, integrated circuit, integrated circuit selection, microelectronic circuit, radio frequency amplifier, radio frequency circuit, radio frequency integrated circuit, mixed-signal integrated circuit, voltage-controlled oscillator, disk drive design, linear integrated circuit, computer network security, communication system engineering, 802.11x, assisted Global Positioning System, 4G mobile network, bluetooth, 2G mobile network, Gigabit Ethernet Network, network reliability, digital communications network architecture, radio-frequency transistor, aerospace electronics science, radio-frequency power amplifier, packet radio network, intelligent network, local area networking, computer networking, semantic network, radio-frequency mixer, broadband, fiber-optic communication network, high-speed network, packet switching network, data communication network, feed forward radio-frequency amplifier, low-noise oscillator, electronic circuit analysis, Network Operating System database, telecommunications electronics science, military electronics science, electronic circuit modeling, crystal-controlled oscillator design, Ethernet Network, monolithic integrated circuit design, very high-speed integrated circuit, local-area network security, local-area network communication protocol, local area network, network security system, Internet, analog-to-digital conversion, radio-frequency oscillator, analog signal, electronic circuit element, communication network, avionics engineering, systems network architecture, SPICE simulation software, power electronics, networking, network architecture, monolithic integrated circuit, network, electronics testing, data storage system, computer network, broadband communication, broadband amplifier

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