DocumentCode
3577623
Title
A low-cost microwave rotary joint
Author
Eskelinen, Pekka
Author_Institution
Dept. of Electr. Eng., Aalto Univ., Espoo, Finland
fYear
2014
Firstpage
1
Lastpage
4
Abstract
A simple and cheap coaxial microwave rotary joint covering frequencies from 1 to 21 GHz is described. Measured typical insertion loss is 0.7 dB, return loss stays better than 10 dB and the rotating torque requirement is 26 mNm. Maximum variation of attenuation as a function of rotating angle is 0.5 dB. Operation up to 37 GHz has been tried with loss values around 2 dB, typical.
Keywords
UHF devices; microwave devices; coaxial microwave rotary joint; frequency 1 GHz to 21 GHz; gain 0.5 dB; loss 0.7 dB; rotating torque requirement; Conductors; Connectors; Insertion loss; Joints; Loss measurement; Microwave measurement; Radar; ball bearings; microwave connectors; microwave measurements; microwave transitions; radar components; rotary joint;
fLanguage
English
Publisher
ieee
Conference_Titel
Radar Conference (Radar), 2014 International
Type
conf
DOI
10.1109/RADAR.2014.7060276
Filename
7060276
Link To Document