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research article
Demonstration of microwave generation by a ferroelectric-cathode tube
A ferroelectric cathode is employed in a cyclotron-resonance maser (CRM). The CRM oscillator device operates at similar to 7 GHz, near the cutoff frequency of a hollow cylindrical cavity. The cathode is made of a PLZT 12/65/35 ceramic with high-dielectric constant (epsilon(r)similar to 4000). Electrons are extracted from the plasma excited on the cathode surface by similar to 1 kV short rise-time pulses. The use of ferroelectric cathodes may advance the microwave tube technology for various applications. (C) 1999 American Institute of Physics. [S0003-6951(99)03403-8].
Type
research article
Authors
Drori, R.
•
Einat, M.
•
Shur, D.
•
Jerby, E.
•
Rosenman, G.
•
Advani, R.
•
Temkin, R. J.
•
Pralong, C.
Publication date
1999
Published in
Volume
74
Issue
3
Start page
335
End page
337
Peer reviewed
REVIEWED
Available on Infoscience
April 16, 2008
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