Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

A TE11 Ka-band gyro-TWT amplifier with high-average power compatible distributed loss

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
7 Author(s)
Pershing, D.E. ; Vacuum Electron. Branch, U.S. Naval Res. Lab., Washington, DC, USA ; Nguyen, K.T. ; Calame, J.P. ; Danly, B.G.
more authors

Current amplifier research at the Naval Research Laboratory Vacuum Electronics Branch emphasizes techniques to extend the bandwidth and average power capability of gyro devices for millimeter wave radar applications. This paper will discuss the implementation of a wideband high-gain gyro-traveling wave tube amplifier design, with a measured peak output power of 78 kW, gain ∼60 dB, and a 3-dB bandwidth of 4.2 GHz (12%) at 52 kW in Ka-band. The 3-dB saturated bandwidth at 70 kW is 6 GHz (17%), which is also the instantaneous bandwidth with appropriately tailored input power (e.g., gain equalizer). The amplifier operates in the TE11 mode and for stabilization employs a high-average power compatible diffractive loading technique.

Published in:

Plasma Science, IEEE Transactions on  (Volume:32 ,  Issue: 3 )