QID Series High Power CW and Pulse IMPATT Diodes

Product Description

QuinStar Technology's QID series W-Band IMPATT diodes are high power silicon double drift diodes packaged in a low parasitic, hermetically sealed package. The diodes are mounted on a metallized diamond heatsink and copper base for efficient heat removal.

CW, long and short pulse diodes are offered and power output levels are tested over specific frequency windows.

Reliability Screening

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Under a program sponsored by a major aerospace customer, QuinStar Technology, Inc. has completed the fabrication of a burn-in test station for high power IMPATT diodes aimed at reducing the probability of any process related early diode failures in mission critical hardware. Such a burn-in procedure has been shown in previously conducted tests on space programs to be effective in eliminating over 97% of early failures.

The station is capable of burning in 24 diodes at a time. Various safeguards are built into the station to ensure that the early failures are attributed only to process-related defects, and not due to other external factors. This burn-in procedure will be implemented on all QuinStar IMPATT products to ensure reliable operations.

Specifications

CW and Long Pulse¹ Diodes
Test Circuit Waveguide Band	W 75-110
Test Frequency Range (GHz)	92-96
Power Outputs Available (mW typ)²	400
Operating Voltage Range (V)	16-22
Total Capacitance at V=0 (pF)	0.7-1.5

Short Pulse Diodes
Test Circuit Waveguide Band	W 75-110
Test Frequency Range (GHz)	92-96
Peak Power Outputs Available (W typ) ²	20
Total Capacitance at V=0 (pF typ)	6.0-9.0
Pulse Width (nS typ)	100

Notes:
¹Long Pulse: >1 uSec, up to 100% duty factor
² Diodes are tested to provide specified minimum power output at an unspecified single frequency in the test frequency range with estimated junction temperature not exceeding 250°C with the test fixture cavity at 50°C.

Outline Drawing/Mechanical Specifications

FREQUENCY BAND	OUTLINE DIMENSIONS, inches/mm
FREQUENCY BAND	A (CW, Long Pulse, Short Pulse)	A (Hi Power Dual Diode, Short Pulse)	B
W	0.035/0.89	0.030/0.76	0.013/0.33

Ordering Information

Model Number: QID - AB CD E 0 (click here for automatic web quote request form)

Center frequency (rounded to nearest GHz)

(1A = 100-109 GHz)

Power output in dBm

Diode type:

	C	=	CW and Long Pulse
	P	=	Short Pulse

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