Elmer Ko

RF System/IC Package Engineer

Role
Rf System and Ic Packaging Pcb Design Manager at Axiro Semiconductor
Location
Irvine, CA, US
LinkedIn followers
500 followers

About Elmer Ko

Hands-on Experience in RF system integration from BB to RF.• RF system analysis: RF link budget, component requirement and performance estimation.• Antenna designs in different frequency bands including LTE, WIFI and mm-wave for varies applications, such as cell phones, VR, satcomm and MIMO.• Solid knowledge and experience in design, fabrication and test of printed and waveguide antennas, antenna arrays and passive RF front-end components in microwave and millimeter-wave bands.• Extensive experience in simulation and design of RF passive structures including transmission lines, couplers, combiners, filters, diplexers, matching circuits, and phase-shifters• High-Frequency IC packaging and PCB designs. Work with OSATs to ensure DFM and reliability from NPI to production.• Extensive experience in using tunable components to create tunable RF components.• Expert in commercial electromagnetic tools and RF softwares including HFSS, CST, ADS, and Sonnet.• Proficient with RF and antenna test equipment such as vector network analyzer, spectrum analyzer, noise meter, signal generator and anechoic chambers

Experience

  1. Rf System and Ic Packaging Pcb Design Manager

    Axiro Semiconductor

    Apr 2025 — Present · San Diego, CA, US

    Establish a team for RF system, EM, IC packaging and PCB designs- System analysis for phased array system- Develop a program to optimize ATE trimming to enhance yield rate- Manage and cooperate with OSATs to ensure reliability and schedule of RFIC products

Education

  • National Chiao Tung University

    Bachelor, Communication Engineering

    2003 — 2007

  • University of Illinois Urbana-Champaign

    Exchange Student, ECE

    2007 — 2007

  • National Chiao Tung University

    Master, Antenna Design

    2007 — 2008

  • UC San Diego

    Doctor of Philosophy (PhD), Electronic circuits and systems

    2011 — 2014

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Elmer Ko — Rf System and Ic Packaging Pcb Design Manager at Axiro Semiconductor in Irvine, CA, US | Unifers