QTM Series Mechanically-Tunable Gunn Oscillators

Product Description

QuinStar Technology's QTM series of mechanically-tunable Gunn oscillators cover the frequency range of 18 to 100 GHz in seven waveguide bands (above 100 GHz we offer fixed frequency or bias tuned Gunn oscillators). They combine a high-Q resonant circuit with either a GaAs or InP Gunn diode. Typically, InP diodes are used for high-power applications at the higher frequencies. Each oscillator has an internal low-frequency bias circuit with an oscillation suppression network and over-voltage protection. Standard units are rated over 0 to +50° C operating temperature and incorporate a screw tuner with a reliable self-locking feature.

Gunn oscillators can be provided with broader tuning ranges, higher power levels, micrometer tuners, temperature controlled heaters, integral isolators, voltage regulators, modulators and injection-locking capability.

Series QTM oscillators provide a small bias tuning of operating frequency. Often, bias tuning can be used in place of varactor-tuning (series QTV). Phase-locked oscillators (Series QPL) and injection-locked oscillators (Series QTI) are also available.

Specifications

FREQUENCY BAND		K	Ka	Q	U	V	E	W
Frequency Range (GHz)		18-26.5	26.5-40	33-50	40-60	50-75	60-90	75-100
Waveguide Size		WR-42	WR-28	WR-22	WR-19	WR-15	WR-12	WR-10
Output Power Range ¹	(mW)	10-500	10-300	10-250	10-200	10-100	10-80	10-50
Output Power Range ¹	(dBm)	10-27	10-25	10-24	10-23	10-20	10-19	10-17
DC Bias Voltage Range (typ)	GaAs (volts)	5-8	5-7	5-6	5-6	4-6	3-6	3-6
DC Bias Voltage Range (typ)	InP (volts)	-	-	6-11	6-10	6-10	8-10	8-10
DC Bias Current Range (typ)	GaAs (Amp)	0.6-2.0	0.6-2.6	0.6-2.0	0.6-2.0	0.6-1.5	0.6-1.5	0.6-1.5
DC Bias Current Range (typ)	InP (Amp)	-	-	0.3	0.3	0.3	0.25	0.25
Mechanical Tuning Range (GHz) ²		0.1-4	0.1-5	0.1-5	0.1-5	0.1-5	0.1-8	0.1-10
Frequency Stability (MHz/°C typ)		-1.5	-2.0	-2.5	-3.0	-4.0	-4.0	-5.0
Power Stability (dB/°C typ)		-0.02	-0.02	-0.03	-0.03	-0.03	-0.03	-0.03
Operating Temperature		0 to 50°C

Other waveguide sizes are available.
¹ Higher power outputs are available at selected frequencies.
² Standard units have a minimum tuning range of ± 250 MHz. Broader mechanical tuning ranges are available.

FREQUENCY BAND	WAVEGUIDE SIZE	FLANGE PATTERN	OUTLINE DIMENSIONS, inches/mm ¹
FREQUENCY BAND	WAVEGUIDE SIZE	FLANGE PATTERN	A	B	C
K	WR-42	UG-595/U	1.13/28.7	1.38/35.1	1.00/25.4
Ka	WR-28	UG-599/U	1.13/28.7	1.38/35.1	1.00/25.4
Q	WR-22	UG-383/U	1.13/28.7	1.38/35.1	1.00/25.4
U	WR-19	UG-383/U	1.13/28.7	1.38/35.1	1.00/25.4
V	WR-15	UG-385/U	0.88/22.4	1.13/28.7	1.00/25.4
E	WR-12	UG-387/U	0.88/22.4	1.13/28.7	1.00/25.4
W	WR-10	UG-387/U	0.88/22.4	1.13/28.7	1.00/25.4
F	WR-8	UG-387/U	0.88/22.4	1.13/28.7	1.00/25.4
D	WR-6	UG-387/U	0.88/22.4	1.13/28.7	1.00/25.4

¹ Consult factory for exact outline dimensions if options are specified.

Ordering Information

Model Number: QTM - AB CD E F (click here for automatic web quote request form)

(Please specify exact center frequency, tuning range and options when ordering)

Center frequency (rounded to nearest GHz)

Power output in dBm

Options

H	=	Heater*
I	=	Isolator*
B	=	Heater and isolator *
R	=	Compact regulator (see Gunn Regulators/Modulators, QCR)
C	=	heater, isolator and compact regulator *
M	=	Micrometer tuner
A	=	Full feature regulator (see Gunn Regulators/Modulators, QCR)
0	=	No option
S	=	Special combination of preceding options (please specify)
Z	=	Custom

Waveguide band designator

K	=	K-band
A	=	Ka-band
Q	=	Q-band
U	=	U-band
V	=	V-band
E	=	E-band
W	=	W-band (100 GHz max)

* Addition of heater and isolator options reduce output power.

Also available:
	Mechanically-Tunable Gunn Oscillators (QTM Series)	Phase Locked Oscillators (QPL Series)
	Varactor-Tunable Gunn Oscillators (QTV Series)	Active Frequency Multipliers (QMM Series)
	Gunn Regulators/Modulators (QCR Series)	Passive Frequency Multipliers (QPM Series)
	Frequency Extenders (QBE Series)	Noise Sources (QNS Series)
	High Power IMPATT Diodes (QID Series)
	Master List of All Products	Catalog Request