Radio-frequency and microwave load comprising a carbon-bonded carbon fiber composite
Patent
·
OSTI ID:644434
A billet of low-density carbon-bonded carbon fiber (CBCF) composite is machined into a desired attenuator or load element shape (usually tapering). The CBCF composite is used as a free-standing load element or, preferably, brazed to the copper, brass or aluminum components of coaxial transmission lines or microwave waveguides. A novel braze method was developed for the brazing step. The resulting attenuator and/or load devices are robust, relatively inexpensive, more easily fabricated, and have improved performance over conventional graded-coating loads. 9 figs.
- Research Organization:
- Lockheed Martin Energy Syst Inc
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)
- Patent Number(s):
- US 5,742,211/A/
- Application Number:
- PAN: 8-620,616
- OSTI ID:
- 644434
- Country of Publication:
- United States
- Language:
- English
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