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QCY / QCI Series Broadband Cryogenic Circulators and Isolators

Characteristics
  • Broadband
  • Magnetically Shielded
  • High Isolation, Low Insertion Loss
  • Low VSWR

4.0 - 12.0 GHz Isolator
Product Description

QuinStar Technology’s QCY series Cryogenic Circulators and QCI series Cryogenic isolators are custom-designed field-displacement devices with exceptional broadband performance, and are often used in conjunction with our QCA series Cryogenic Amplifiers and Systems. These units have standard internal magnetic shielding. However, to maintain excellent electrical characteristics while operating in stronger magnetic fields,

an external magnetic shield is optionally available to augment the standard internal magnetic shielding. Typical applications for these units include radio astronomy, satellite earth stations, radiometers and electrical spin resonance measurement systems.

QCI Cryogenic Isolator Specifications

Characteristic1, 2

4.0 - 8.0 GHz 4.0 - 10.5 GHz 8.0 - 12.0 GHz 10.5 - 12.0 GHz 12 - 18 GHz 18 - 26.5 GHz 26.5 - 40 GHz
Isolation >18 dB >18 dB >18 dB >14 dB >18 dB >18 dB >18 dB
Insertion Loss <0.4 <0.8 <0.4 dB <1.2 dB <0.5 dB <0.4 dB <0.5 dB
VSWR <1.28 <1.28 <1.28:1 <1.38:1 <1.28:1 <1.28:1 <1.28:1
I/O Connector Coax
(SMA)
Coax
(SMA)
Coax
(SMA)
Coax
(SMA)
Coax
(SMA)
Waveguide
(WR-42)
Waveguide
(WR-28)
1Other bandwidths available; performance may be improved for narrower bandwidths - contact QuinStar for more information.
2Tested at 77°k.
 

QCY Cryogenic Circulator Specifications

(for Circulator Specifications please consult factory)


Ordering Information

Model Number: QC_- AB.C D.EF G H 00

QC_ = Model prefix:
QCY = circulator
QCI = Isolator
AB.C = Center Frequency (GHz) [eg: 1.5 GHz = 01.5]
C.EF = Bandwidth (GHz) [eg: 750 MHz = 0.75]
G = Microwave Band
H = Magnetic Shielding
M = Optional external soft iron shielding
0 = Standard unit

 

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© 2008 QuinStar Technology, Inc.
Phone: 310.320.1111   |   Fax: 310.320.9968   |   E-mail: sales@quinstar.com   |   Emergency Waveguide Service

 

[ Products | App Notes | New! | Contact Us | About Us | Home | HR | Antenna Services | Request Catalog or Quote ]

© 2008 QuinStar Technology, Inc.
Phone: 310.320.1111   |   Fax: 310.320.9968   |   E-mail: sales@quinstar.com   |   Emergency Waveguide Service