Appeal No. 1999-2070
Application 08/611,899
claims pending in the instant application. Claims 4 and 17
have been cancelled.
The instant invention relates to voltage limiters using
field emission techniques to limit the voltage on radio
frequency transmission lines. Appellants’ Specification, page
1, lines 3-5. Specifically, the present invention provides
a voltage limiter having a large bandwidth to prevent large
voltages on a transmission line from destroying sensitive
electronic components. Specification, page 4, lines 24-27.
The voltage limiter uses field emitters to generate an
electron flow above a predetermined breakdown threshold
voltage without the need for an external electrical source to
induce the electron flow. Specification, page 4, lines 24-27.
The invention also includes a microstrip transmission line
that electrically contacts a selected group of the field
emitters. Specification, page 5, lines 1-6. Since the field
emitters are arranged as an array having a predetermined
distribution per unit area, the width of the microstrip
determines the number of field emitters used. Specification,
page 5, lines 4-10. The number of field emitters used affects
the total power handling capability of the voltage limiter.
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