QPA Series Motorized Programmable Attenuators

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QPA Series Motorized Programmable Attenuators

Characteristics

Compact Size
Offered over 7.0-170 GHz
High Accuracy and Reliability
Digital Readout, IEEE-488 Interface
Manual/Motorized Operation Modes

Product Description

QuinStar Technology’s precision Motorized Programmable Rotary Vane Attenuators are available in full waveguide bands from 7.0 to 170.0 GHz. Attenuation control can be either manual via a front panel or remote-controlled using a standard IEEE-488 interface. Series QPA motorized attenuator’s small compact package incorporates both the electronic controller and microwave attenuator components. The unit operates with a single +24 volt DC source or with an optional AC adapter.

Attenuation range is from 0 to 50 dB in 0.1 dB steps with 0.05 dB steps over 0 to 20 dB. A digital readout is provided on the front panel to display the current attenuation setting. The attenuators are highly reliable and designed to be used in Automated Test Equipment and in applications requiring remote power control.

View operating manual

Specifications

Waveguide Band	Frequency Range (GHz)	Insertion Loss (Max.)	VSWR (Max)	Power (Max.)
XL (WR-112)	7.0 - 10.0	1.0 dB	1.2:1	5 watts
X (WR-90)	8.2 - 12.4	1.0 dB	1.2:1	2 watts
XS (WR-75)	10.0 - 15.0	1.0 dB	1.25:1	2 watts
KU (WR-62)	12.4 - 18.0	1.0 dB	1.25:1	2 watts
K (WR-42)	18.0 - 26.5	1.0 dB	1.15:1	1 watt
Ka (WR-28)	26.5 - 40.0	1.0 dB	1.15:1	0.5 watt
Q (WR-22)	33.0 - 50.0	1.0 dB	1.15:1	0.5 watt
U (WR-19)	40.0 - 60.0	1.0 dB	1.15:1	0.4 watt
V (WR-15)	50.0 - 75.0	1.0 dB	1.20:1	0.3 watt
E (WR-12)	60.0 - 90.0	1.4 dB	1.2:1	0.25 watt
W (WR-10)	75.0 - 110.0	1.5 dB (typ.)	1.25:1 (typ.)	0.25 watt
F (WR-08)	90.0 – 140.0	1.8 dB (typ.)	1.3:1 (typ.)	0.2 watt
D (WR-06)	110.0 – 170.0	2.2 dB (typ.)	1.3:1 (typ.)	0.2 watt

Outline Drawings / Mechanical Specifications

WAVEGUIDE BAND	OUTLINE DIMENSIONS, inches/mm
WAVEGUIDE BAND	A	B	C	D	E
XL	11.69/296.9	4.66/118.3	6.32/160.5	3.73/94.7	2.29/58.2
X	11.69/296.9	4.66/118.3	6.32/160.5	3.73/94.7	2.29/58.2
XS	11.19/284.2	4.66/118.3	6.32/160.5	3.73/94.7	2.29/58.2
KU	10.94/277.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
K	8.49/215.6	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
KA	6.87/174.5	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
Q	6.24/158.4	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
U	6.00/152.4	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
V	5.78/146.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
E	5.78/146.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
W	5.78/146.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
F	5.78/146.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2
G	5.78/146.8	4.00/101.6	5.50/139.7	3.73/94.7	2.29/58.2

Ordering Information

Model Number: QPA - AB C DEF G (Click here for automatic web quote request form)

Waveguide band designator:

XL	=	XL-band
XO	=	X-band
XS	=	XS-band
KU	=	KU-band
K0	=	K-band
A0	=	Ka-band
Q0	=	Q-band
U0	=	U-band
V0	=	V-band
E0	=	E-band
W0	=	W-band
F0	=	F-band
G0	=	G-band

Interface Options:

I	=	IEEE-488
R	=	RS-232
X	=	Others (please specify)

DEF

Waveguide Flange Option (UG-number, see appendix A; if no UG-number exists use MPI- number)

Note: square flanges will have 'thru' (non-threaded) screw holes unless otherwise requested.

Other options

	O	=	Standard
	Z	=	Custom

Also available:
	Variable PIN Attenuators (QSA Series)	PIN Switches (QSS/QSD/QSn Series)
	Fullband Junction Circulators and Isolators (QJE/QJF Series)	Coax PIN Switches (QSC Series)
	Fullband Isolators and Modulators (QIF/QIM Series)	Manual Waveguide Switches (QWM Series)
	Broadband Cryogenic Circulators and Isolators (QCY/QCI Series)	Electromechanical Waveguide Switches (QWZ Series)
	Micrometer Type Level Set Attenuators and Variable Phase Shifters, Fixed Attenuators (QAF/QAL/QAS Series)	Motorized Programmable Attenuators (QPA Series)
	Dial Type Level Set Attenuators and Variable Phase Shifters (QDA/QDP Series)	Motorized Programmable Phase Shifter (QMP Series)
	Direct Reading Attenuators and Phase Shifters (QAD/QPS Series)
	Master List of All Products	Catalog Request