By Topic

Broad-band three-port and four-port stripline ferrite coupled line circulators

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Cham Kiong Queck ; Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK ; Davis, L.E.

The broad-band characteristics of a stripline ferrite coupled line (FCL) section are verified through measurements, for the first time. Subsequent simulations and measurements on a 17-GHz three-port circulator employing a stripline FCL section shows a 65% bandwidth, from 11.5 to 22.5 GHz. A four-port FCL circulator, which is a modification of that proposed earlier by Masur and Mrozowski and Queck and Davis is also realized by connecting the two lines together at the center of the FCL section, i.e. within the ferrite region. Compared to the four-port circulator consisting of an FCL section and a hybrid coupler, it has the advantage of much broader bandwidth. Simulations and measurements confirm its circulating behavior and also show a similar 65% bandwidth, from 12.0 to 23.5 GHz.

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:52 ,  Issue: 2 )