QuinStar Technology's series QTV varactor-tunable Gunn oscillators
cover the frequency range of 18 to 110 GHz in seven waveguide bands. These oscillators
combine proprietary cavity design, abrupt or hyperabrupt tuning varactor diodes and high
performance Gunn diodes to produce power in the millimeter wave frequency range. Tuning
voltages range from 0 to +30 VDC. The electrical tuning rate may be as high as 50 MHz
(20ns per sweep).
Each oscillator
has an internal low frequency suppression circuit to ensure stable RF oscillation and
over-voltage protection. Mechanical tuning in addition to voltage tuning can be offered as
an option. Gunn oscillators can be provided with broader tuning ranges, higher power
levels, temperature controlled heaters, integral isolators and voltage regulators. |
These
varactor-tunable Gunn oscillators exhibit low AM and FM noise, moderately high output
power and wide tuning bandwidth, as well as monotonic tuning characteristics. These
characteristics make the oscillator a unique low cost solution for most FM transmitter,
local oscillator, AFC loops and phase locked subsystem applications.
For many applications, a bias
tuned Gunn oscillator is adequate. Please see mechanically-tunable Gunn
oscillators (series QTM) and contact QuinStar for more information. |
