QID Series High Power CW and Pulse IMPATT Diodes

Product Description

QuinStar Technology's QID series 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 outputs are tested over specific frequency windows. QID series high power short pulse diodes are available in dual diode packages for W-band short pulse applications.

QuinStar also offers high power IMPATT oscillators (QIO Impatt Oscillators) and amplifiers (QIC CW IMPATT Amplifiers, QIP Pulsed IMPATT Amplifiers) for a variety of applications.

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	Ka 26.5-40	Q 33-50	V 50-75	W 75-110	D 110-170
Test Frequency Range (GHz)	33-37	42-46	58-62	92-96	135-145
Power Outputs Available (mW typ)²	1000	800	800	400	20
Operating Voltage Range (V)	35-50	30-42	24-34	16-22	7-12
Total Capacitance at V=0 (pF)	1.0-3.0	1.0-3.0	1.2-2.5	0.7-1.5	0.7-1.0

Short Pulse Diodes
Test Circuit Waveguide Band	Ka 26.5-40	Q 33-50	V 50-75	W 75-110	D 110-170
Test Frequency Range (GHz)	33-37	42-46	58-62	92-96	135-145
Peak Power Outputs Available (W typ) ²	15	---	---	20	---
Total Capacitance at V=0 (pF typ)	5.0-9.0	---	---	6.0-9.0	---
Pulse Width (nS typ)	100	---	---	100	---

High Power Short Pulse W-Band Dual Diodes
Test Circuit Waveguide Band	W 75-110
Test Frequency Range (GHz)	88-96
Peak Power Outputs Available (W typ)	40
Total Capacitance at V=0 (pF typ)	3.0-5.0
Pulse Width (nS typ)	<100
Duty Factor (% max)	0.8

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
Ka	0.035/0.89	-	0.013/0.33
Q	0.035/0.89	-	0.013/0.33
V	0.035/0.89	-	0.013/0.33
W	0.035/0.89	0.030/0.76	0.013/0.33
D	0.018/0.45	-	0.010/0.25

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, 1B = 110-119 GHz, etc.)

Power output in dBm

Diode type:

C	=	CW and Long Pulse
P	=	Short Pulse
D	=	Dual Diode (short pulse, W-Band only)

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)
	High Power IMPATT Oscillators (QIO Series)	Noise Sources (QNS Series)
	Stable Millimeter Wave Sources (QSO Series)	Frequency Extenders (QBE Series)
	Master List of All Products	Catalog Request