Howard Johnson

1978

He served as the chief technical editor for Fast Ethernet and Gigabit Ethernet standardisation, and was recognized by the Institute of Electrical and Electronics Engineers as an "Outstanding Contributor" to the Institute of Electrical and Electronics Engineers P802.3z Gigabit Task Force. His dissertation was titled The design of DFT algorithms. Johnson has significantly raised awareness of analog effects at work in high speed digital electronic systems In modern digital systems, it is common for digital designs to be subject to analog effects, even if they operate at a relatively low clock frequency. Circuits operating at lower clock rates can behave as high speed digital systems if there is sufficient high frequency content in the signal edges (when transitioning between digital logic levels) relative to the distance traveled across a printed circuit board. As a result of improvements in semiconductor process, faster edge rates of even "low technology" electronic components can be sufficient to make the system effectively high speed and thus subject to havoc caused by unanticipated analog effects. A good example is his illustration of the matrix of rising edges that result from different combinations of skin-effect and dielectric loss which illustrates Printed circuit board design problems one encounters at microwave frequencies. Johnson was also active in the development of two Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers) standards that govern Ethernet, Institute of Electrical and Electronics Engineers 802.3 Fast Ethernet and Institute of Electrical and Electronics Engineers 802.3 Gigabit Ethernet.

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Works

book

High Speed Digital Design: A Handbook of Black Magic

( Focused on the field of knowledge lying between digita...)

Fast Ethernet: Dawn of a New Network by Howard Johnson (1995-09-20)

High Speed Signal Propagation: Advanced Black Magic by Howard Johnson (2003-03-06)

Fast Ethernet: Dawn of a New Network

(For Ethernet installers and managers; corporate network s...)

High Speed Signal Propagation: Advanced Black Magic

(High-Speed Signal Propagation: Advanced Black Magic bring...)

High-Speed Signal Propagation Advanced Black Magic (Chinese Edition)

High Speed Digital Design: A Handbook of Black Magic (Prentice Hall Modern Semiconductor Design) By Johnson, Howard Wesley ( Author ) Hardcover 1993

Howard Johnson

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engineer

Education

Johnson earned his Bachelor of Science in Electrical Engineering (1978), Masters of Electrical Engineering (1979), and Doctor of Philosophy (1982) from Rice University.

Career

He served as the chief technical editor for Fast Ethernet and Gigabit Ethernet standardisation, and was recognized by the Institute of Electrical and Electronics Engineers as an "Outstanding Contributor" to the Institute of Electrical and Electronics Engineers P802.3z Gigabit Task Force. His dissertation was titled The design of DFT algorithms. Johnson has significantly raised awareness of analog effects at work in high speed digital electronic systems

In modern digital systems, it is common for digital designs to be subject to analog effects, even if they operate at a relatively low clock frequency.

Circuits operating at lower clock rates can behave as high speed digital systems if there is sufficient high frequency content in the signal edges (when transitioning between digital logic levels) relative to the distance traveled across a printed circuit board. As a result of improvements in semiconductor process, faster edge rates of even "low technology" electronic components can be sufficient to make the system effectively high speed and thus subject to havoc caused by unanticipated analog effects.

A good example is his illustration of the matrix of rising edges that result from different combinations of skin-effect and dielectric loss which illustrates Printed circuit board design problems one encounters at microwave frequencies. Johnson was also active in the development of two Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers) standards that govern Ethernet, Institute of Electrical and Electronics Engineers 802.3 Fast Ethernet and Institute of Electrical and Electronics Engineers 802.3 Gigabit Ethernet.