High power microwave expander for producing fast rise time pulse

Details High power microwave expander for producing fast rise time pulse High power microwave expander for producing fast rise time pulse

1988-03-28

1989-10-17

LaRoche, Eugene R.

Wave transmission lines and networks

Wave-shaping

328 65, H03K 504, H03K 3537

Patent

active

048750220

ABSTRACT:
An high power microwave expander is provided which decreases the rise time of rf pulses. The expander is a transmission line in which internal conductors are separated and tapered to provide a spark gap with high isolation characteristics at low power. The arcing threshold of the spark gap can be adjusted by varying the internal pressure of the transmission line, injecting a gas such as helium into the transmission line and by providing free electrons in close proximity to the spark gap.

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Tan et al., "High-Power, Short-Pulse Forming Circuits," IEEE MTT-S Internonal Microwave Symposium Digest, vol. 1, Jun. 9-11, 1987, pp. 399-402.
Smith, III et al., "Gas Break Down Transmit-Receive Tube Turn-On Times," IEEE Transaction on Plasma Science, vol. PS-14, No. 1, Feb. 1986, pp. 63-66.

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