An analysis of a coupled-ring rotary joint design

Author

Evans, E.D.

Author_Institution

MIT Lincoln Lab., Lexington, MA, USA

Volume

40

Issue

3

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

577

Lastpage

581

Abstract

A theoretical and experimental analysis of a coupled-ring rotary joint design is described. A rotary joint of this type is commonly used for mechanically scanned, multichannel radars. The main goal of the analysis is to develop a better understanding for the transfer of energy through the joint´s highly coupled rings. The author considers the geometry of a typical single channel and then describes a coupled transmission line model for the coupled-ring network. Using the model, the author determines the type of ring network needed for low channel loss and small rotational variations of this loss. Measurements on some test models support the predictions of the analysis

Keywords

distributed parameter networks; equivalent circuits; linear network analysis; radar equipment; strip line components; transmission line theory; waveguide couplers; coupled transmission line model; coupled-ring; mechanically scanned; multichannel radars; ring network; rotary joint design; stripline divider; Bipolar transistors; Couplings; Electron devices; Equivalent circuits; Gallium arsenide; Heterojunction bipolar transistors; Microwave Theory and Techniques Society; Microwave devices; Microwave theory and techniques; Radar;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.121738

Filename

121738