Millimeter Wave Materials Measurement By Fabry-Perot

1985 ◽  
Author(s):  
T. B. Wells ◽  
R. L. Moore ◽  
D. C. Hicks
Keyword(s):  
Millimeter Wave ◽  
Fabry Perot ◽  
Millimeter Wave Materials

MILLIMETER WAVE SPECTROSCOPY IN A SEMI-CONFOCAL FABRY-PEROT CAVITY

2017 ◽  
Author(s):  
Brian Drouin ◽  
Rod Kim ◽  
M.-C. Chang ◽  
Alexander Raymond ◽  
Timothy Crawford ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Millimeter Wave Spectroscopy ◽  
Fabry Perot

A beam scanning Fabry–Pérot cavity antenna for millimeter‐wave applications

2018 ◽  
Vol 29 (5) ◽  
pp. e21570 ◽  
Author(s):  
Jianghong Lan ◽  
Baohua Sun ◽  
Wenbo Yan ◽  
Mengyao Mi
Keyword(s):  
Millimeter Wave ◽  
Beam Scanning ◽  
Fabry Perot

scholarly journals Millimeter Wave Fabry-Perot Resonator Antenna Fed by CPW with High Gain and Broadband

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Xue-Xia Yang ◽  
Guan-Nan Tan ◽  
Bing Han ◽  
Hai-Gao Xue
Keyword(s):  
Millimeter Wave ◽  
Coplanar Waveguide ◽  
Dielectric Substrate ◽  
High Gain ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Gain Bandwidth ◽  
Broad Bandwidth ◽  
Low Profile ◽  
Fabry Perot

A novel millimeter wave coplanar waveguide (CPW) fed Fabry-Perot (F-P) antenna with high gain, broad bandwidth, and low profile is reported. The partially reflective surface (PRS) and the ground form the F-P resonator cavity, which is filled with the same dielectric substrate. A dual rhombic slot loop on the ground acts as the primary feeding antenna, which is fed by the CPW and has broad bandwidth. In order to improve the antenna gain, metal vias are inserted surrounding the F-P cavity. A CPW-to-microstrip transition is designed to measure the performances of the antenna and extend the applications. The measured impedance bandwidth ofS11less than −10 dB is from 34 to 37.7 GHz (10.5%), and the gain is 15.4 dBi at the center frequency of 35 GHz with a 3 dB gain bandwidth of 7.1%. This performance of the antenna shows a tradeoff among gain, bandwidth, and profile.

scholarly journals New Experimental Possibilities and Future Prospects for 1-5μm Infrared Spectroscopy of Interstellar Molecules

1980 ◽  
Vol 87 ◽  
pp. 631-632
Author(s):  
Donald N. B. Hall
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Millimeter Wave ◽  
Molecular Clouds ◽  
Future Prospects ◽  
Interstellar Molecules ◽  
The Past ◽  
Evolved Stars ◽  
Large Numbers ◽  
Fabry Perot

During the past week we have heard a considerable number of papers dealing with spectroscopic observations in the 1-5μm region of the infrared. I predict that as instruments and detectors continue to improve, such observations will play a major role in the study of interstellar molecules in both molecular clouds and circumstellar clouds around evolved stars. Fourier Transform spectrometers and Fabry Perot interferometers have already yielded spectra of such sources with spectral resolution and radial velocity precision fully comparable to millimeter wave observations. The critical need is to improve the limiting magnitude of such observations by 3-5 stellar magnitudes so that one can study large numbers of sources rather than the few brightest in each class.

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