Claims
- 1. A nonlinear transmission line (NLTL) impulse generator, comprising:
- a NLTL having an input and an output, and consisting of a plurality of inductors and reverse biased varactor diodes; and
- a pulse forming network (PFN) connected in shunt between said output of said NLTL and ground, wherein said PFN is electrically connected in parallel with the last varactor diode of said plurality of reverse biased varactor diodes wherein said PFN is located within 1/2 of a pulse length in electrical length of said NLTL output, wherein said PFN rapidly reduces a NLTL output voltage to differentiate said NLTL output voltage.
- 2. The nonlinear transmission line (NLTL) impulse generator of claim 1, wherein said PFN comprises a transmission line that is shunted to ground.
- 3. A NLTL impulse generator according to claim 1, wherein said reverse biased varactor diodes diminish in capacitance from said NLTL input to said NLTL output.
- 4. A NLTL impulse generator according to claim 1, wherein said plurality of inductors diminish in inductance from said NLTL input to said NLTL output.
- 5. A NLTL impulse generator according to claim 1, wherein said NLTL is tapered.
- 6. A NLTL impulse generator according to claim 5, wherein an LC product diminishes from said NLTL input to said NLTL output.
- 7. A NLTL impulse generator according to claim 1, wherein said pulse forming network comprises a differentiation circuit.
- 8. A NLTL impulse generator according to claim 7, wherein said differentiation circuit comprises an inductor.
- 9. A NLTL impulse generator according to claim 7, wherein said differentiation circuit comprises a short piece of transmission line.
- 10. A NLTL impulse generator according to claim 7, wherein said differentiation circuit rapidly reduces said NLTL output voltage during said differentiation process.
RELATED APPLICATIONS
The application is a continuation-in-part of U.S. patent application Ser. No. 08/194,029, filed Feb. 9, 1994 now abandoned.
Government Interests
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.
US Referenced Citations (7)
Non-Patent Literature Citations (1)
Entry |
R.A. Marsland et al., 130 GHz GaAs monolithic integrated circuit sampling head, 07 Aug. 1989, Applied Physics Letters, vol. 55, No. 6, pp. 592-594. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
194029 |
Feb 1994 |
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