QAD/QEF/QPS Direct Reading Attenuators and Phase Shifters

Product Description

QuinStar Technology's direct reading attenuators and phase shifters are designed and built for precision millimeter-wave measurements. These instruments cover the range of 26.5-110 GHz in six waveguide bands. Series QAD direct reading attenuators and series QPS direct reading phase shifters are of classical rotary vane construction. They offer highly repeatable settings and frequency independent readings.

Both instruments have low VSWR. In addition, the attenuator has negligible phase shift versus attenuation setting while the phase shifter has low insertion loss. They are well suited for accurate millimeter-wave measurements. Direct reading attenuators and phase shifters are also available in motorized versions for ATE or other applications requiring remote control.

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	75-110
Waveguide Size	WR-42	WR-28	WR-22	WR-19	WR-15	WR-12	WR-10
DIRECT READING PRECISION ATTENUATORS
Insertion Loss (dB max)	0.5	0.5	0.6	0.7	0.8	1.0	1.2
VSWR (Typical)	1.15	1.15	1.15	1.15	1.20	1.20	1.25
Average Power (Watts)	0.5	0.5	0.5	0.4	0.3	0.2	0.2
Attenuation Range ¹	0 dB to 50 dB (above insertion loss) over full waveguide band
DIRECT READING PHASE SHIFTERS
Accuracy (degrees)		3	3	3	4	4	4
Insertion Loss (dB)		1.0	1.2	1.3	1.5	1.8	2.0
VSWR (Typical)		1.30	1.30	1.30	1.35	1.35	1.35
Average Power (Watts)		1.0	1.0	1.0	0.8	0.7	0.6
Phase Shift Range		0 to 360 degrees direct reading
Read-Out		0 to 360 degrees in 5 degree divisions
Loss Variation		1.0 dB (max)

Other waveguide sizes are available.
¹Scale increments: 0dB to 0.1dB = 0.01dB; 0.1dB to 1.0dB = 0.05dB; 1.0dB to 10dB = 0.10dB; 10.0dB to 20.0dB = 0.20dB; 20.0dB to 30.0dB = 0.5dB; 30.0dB to 50.0dB = 1.0dB. Maximum setting 60dB typical.

SERIES QAD DIRECT READING ATTENUATOR
FREQUENCY BAND	WAVEGUIDE SIZE	OUTLINE DIMENSIONS (inches/mm)
FREQUENCY BAND	WAVEGUIDE SIZE	A	B	C
Ka	WR-28	5.00/127.0	4.00/102.0	6.87/174.5
Q	WR-22	5.00/127.0	4.00/102.0	6.24/158.4
U	WR-19	5.00/127.0	4.00/102.0	6.0/152.4
V	WR-15	5.00/127.0	4.00/102.0	4.4/111.8
E	WR-12	5.00/127.0	4.00/102.0	4.2/106.7
W	WR-10	5.00/127.0	4.00/102.0	4.0/101.6

SERIES QPS DIRECT READING PHASE SHIFTER
FREQUENCY BAND	WAVEGUIDE SIZE	OUTLINE DIMENSIONS (inches/mm)
FREQUENCY BAND	WAVEGUIDE SIZE	A	B	C
Ka	WR-28	8.6/218.4	3.66/93.0	3.22/81.8
Q	WR-22	5.8/147.3	3.66/93.0	3.22/81.8
U	WR-19	6.1/154.9	3.66/93.0	3.22/81.8
V	WR-15	5.1/129.5	3.66/93.0	3.22/81.8
E	WR-12	4.5/114.3	3.66/93.0	3.22/81.8
W	WR-10	3.7/94.0	4.00/102.0	4.50/114.3

Ordering Information

DIRECT READING ATTENUATORS (Click here for automatic web quote request form)

Model Number: QAD - A 0000

Waveguide band designator:

K	=	Ka-band
A	=	Ka-band
Q	=	Q-band
U	=	U-band
V	=	V-band
E	=	E-band
W	=	W-band

DIRECT READING PHASE SHIFTERS (Click here for automatic web quote request form)

Model Number: QPS - A 0000

Waveguide band designator:

A	=	Ka-band
Q	=	Q-band
U	=	U-band
V	=	V-band
E	=	E-band
W	=	W-band

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

NOTE: These outline drawings are currently under review and will be updated soon. Please check with factory.


Series QAD	Series QPS