English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper the numerical and experimental investiga- tions of four-port circulator utilizing longitudinally magnetized cylin- drical ferrite coupled lines (CFCL) section are presented for the flrst time. In comparison to earlier models the proposed structure of cir- culator utilizes multilayer magic-T junction cascaded with cylindri- cal ferrite section of …=4 Faraday angle. The advantage of utilization of cylindrical section over the planar one is the possibility to design shorter ferrite junctions ensuring lower insertion losses. Moreover, the multilayer magic T-junction allows to improve performance of the pro- posed circulator by omitting the bandwidth limitation which exists in commonly used hybrid couplers with air-bridges. In the analysis of CFCL junction the full wave hybrid approach combining flnite difier- ence frequency domain method with method of moments and mode matching technique is applied. The planar feeding structures of circu- lator are designed with the use of commercial software. The simulated results of the entire circulator are compared with the measurement results of the fabricated prototype and a good agreement is achieved.

INVESTIGATIONS OF FOUR-PORT CIRCULATOR UTILIZING CYLINDRICAL FERRITE COUPLED LINE JUNCTION