Experimental and theoretical study of groove guide horn antennas at W-band

1997 ◽  
Vol 144 (5) ◽  
pp. 311
Author(s):  
W.M. Shi ◽  
K.F. Tsang ◽  
K. Kang ◽  
W.X. Zhang
Keyword(s):  
Theoretical Study ◽  
Horn Antennas ◽  
W Band ◽  
Groove Guide

scholarly journals Selective Laser Melting Process of Al–Based Pyramidal Horns for the W-Band: Fabrication and Testing

2021 ◽  
Author(s):  
L. Lamagna ◽  
A. Paiella ◽  
S. Masi ◽  
L. Bottini ◽  
A. Boschetto ◽  
...  
Keyword(s):  
Selective Laser Melting ◽  
High Surface ◽  
Melting Process ◽  
Horn Antenna ◽  
Post Processing ◽  
Laser Melting ◽  
Performance Impact ◽  
Horn Antennas ◽  
Sand Blasting ◽  
W Band

AbstractIn the context of exploring the possibility of using Al-powder Selective Laser Melting to fabricate horn antennas for astronomical applications at millimeter wavelengths, we describe the design, the fabrication, the mechanical characterization, and the electromagnetic performance of additive manufactured horn antennas for the W-band. Our aim, in particular, is to evaluate the performance impact of two basic kinds of surface post-processing (manual grinding and sand-blasting) to deal with the well-known issue of high surface roughness in 3D printed devices. We performed comparative tests of co-polar and cross-polar angular response across the whole W-band, assuming a commercially available rectangular horn antenna as a reference. Based on gain and directivity measurements of the manufactured samples, we find decibel-level detectable deviations from the behavior of the reference horn antenna, and marginal evidence of performance degradation at the top edge of the W-band. We conclude that both kinds of post-processing allow achieving good performance for the W-band, but the higher reliability and uniformity of the sand-blasting post-process encourage exploring similar techniques for further development of aluminum devices at these frequencies.

scholarly journals Theoretical Study of a ${W}$ -Band-Covering Frequency-Tunable Gyrotron

2020 ◽  
Vol 67 (2) ◽  
pp. 659-666
Author(s):  
Fan-Hong Li ◽  
Chao-Hai Du ◽  
Zi-Chao Gao ◽  
Shi Pan ◽  
Liang Zhang ◽  
...  
Keyword(s):  
Theoretical Study ◽  
W Band ◽  
Frequency Tunable ◽  
Tunable Gyrotron

Intercomparison of Standard Gain Horn Antennas at $W$ -Band

2011 ◽  
Vol 60 (7) ◽  
pp. 2627-2633 ◽  
Author(s):  
Jin-Seob Kang ◽  
No-Weon Kang ◽  
David G. Gentle ◽  
Katherine MacReynolds ◽  
Michael H. Francis
Keyword(s):  
Horn Antennas ◽  
W Band

Intercomparison of W-band standard gain horn antennas

CPEM 2010 ◽  
2010 ◽  
Author(s):  
J. Kang ◽  
N. Kang ◽  
D. Gentle ◽  
K. MacReynolds ◽  
M. Francis
Keyword(s):  
Horn Antennas ◽  
W Band

Etched-silicon micromachined W-band waveguides and horn antennas

2001 ◽  
Vol 49 (4) ◽  
pp. 724-727 ◽  
Author(s):  
B.A. Shenouda ◽  
L.W. Pearson ◽  
J.E. Harriss
Keyword(s):  
Horn Antennas ◽  
W Band ◽  
Etched Silicon
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