High-power millimeter-wave rotary joint for radar applications

2009 ◽  
Author(s):  
T. H. Chang ◽  
B. R. Yu
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
Rotary Joint ◽  
Radar Applications

scholarly journals Broadband Rotary Joint Concept for High-Power Radar Applications

2021 ◽  
Author(s):  
Daniel Haas ◽  
Manfred Thumm ◽  
John Jelonnek
Keyword(s):  
Transmission Line ◽  
High Power ◽  
Polarization Plane ◽  
Cross Polarization ◽  
Frequency Range ◽  
Rotary Joint ◽  
W Band ◽  
Linearly Polarized ◽  
Radar Applications

AbstractTo allow antenna movements in azimuth and elevation in high-power radar applications, rotary joints are essential. They allow the rotation of a transmission line and therefore are important transmission line components. In the present paper, a broadband rotary joint concept for high-power W-band radar applications is proposed. To avoid a twist of the polarization plane of a linearly polarized mode, like HE11, a combination of two broadband polarizer is used. A cross polarization of Xpol ≤ − 20 dB can be achieved within the considered frequency range from 90 GHz to 100 GHz. This corresponds to a suitable value for radar applications.

scholarly journals Force detection of high-frequency electron spin resonance near room temperature using high-power millimeter-wave source gyrotron

2021 ◽  
Vol 118 (2) ◽  
pp. 022407
Author(s):  
Hideyuki Takahashi ◽  
Yuya Ishikawa ◽  
Tsubasa Okamoto ◽  
Daiki Hachiya ◽  
Kazuki Dono ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Millimeter Wave ◽  
Electron Spin ◽  
High Power ◽  
High Frequency ◽  
Room Temperature ◽  
Force Detection ◽  
Wave Source ◽  
Spin Resonance ◽  
Millimeter Wave Source

High Power High Efficiency Millimeter Wave TED's with Reverse-Biased Hetero-Junction Cathode Contact

1985 ◽  
Author(s):  
M.R. Friscourt ◽  
P.A. Rolland ◽  
J.P. Duchemin ◽  
J. Lacombe
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
High Efficiency
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