Title :
Twin slot antenna patterns of a quasi-optical HEB mixer at THz frequencies
Author :
Zhou, K.M. ; Delorme, Y. ; Feret, A. ; Miao, W. ; Lefevre, R. ; Vacelet, T. ; Shi, S.C.
Author_Institution :
Purple Mountain Obs., Nanjing, China
Abstract :
Results of far-field beam pattern measurements of the 1.25 THz superconducting Hot Electron Bolometer (HEB) mixer on a quasi-optical integrated lens antenna are presented. The integrated antenna consists of a planar twin slot antenna mounted on the flat surface of an extended hemispherical lens. The beam patterns have been measured at three frequencies: 1.35 THz, 1.395 THz and 1.47 THz with a new setup which has a focus lens between source and HEB mixer. The first order side lobe level equals -13 dB. The dynamic range is nearly 30 dB. The simulated result is also presented, it agrees with measured one well.
Keywords :
antenna radiation patterns; bolometers; lens antennas; planar antennas; slot antennas; submillimetre wave antennas; THz frequency; beam patterns; far-field beam pattern measurements; flat surface; focus lens; frequency 1.25 THz; frequency 1.35 THz; frequency 1.395 THz; frequency 1.47 THz; hemispherical lens; integrated antenna; planar twin slot antenna; quasioptical HEB mixer; quasioptical integrated lens antenna; superconducting hot electron bolometer mixer; twin slot antenna patterns; Antenna measurements; Extraterrestrial measurements; Frequency measurement; Lenses; Mixers; Slot antennas;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230453
