@InProceedings{Gao_etal2006,
author="Gao, J. R.
and Hiajenius, M.
and Yang, Z. Q.
and Klapwijk, T. M.
and Miao, W.
and Shi, S. C.
and Voronov, B.
and Gortsman, G.",
title="Direct comparison of the sensitivity of a spiral and a twin-slot antenna coupled HEB mixer at 1.6 THz",
booktitle="Proc. 17$^{th}$ Int. Symp. Space Terahertz Technol.",
year="2006",
pages="59--62",
optkeywords="NbN HEB mixers",
abstract="To make a direct comparison of the sensitivity between a spiral and a twin slot antenna coupled HEB mixer, we designed both types of mixers and fabricated them in a single processing run and on the same wafer. Both mixers have similar dimensions of NbN bridges (1.5-2 pm x0.2 pm). At 1.6 THz we obtained a nearly identical receiver noise temperature from both mixers (only 5{\%} difference), which is in a good agreement with the simulation based on semi analytical models for both antennas. In addition, by using a bandpass filter to reduce the direct detection effect and lowering the bath temperature to 2.4 K, we measured the lowest receiver noise temperature of 700 K at 1.63 THz using the twin-slot antenna mixer.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1436), last updated on Sun, 16 May 2021 22:11:49 -0500",
opturl="https://www.nrao.edu/meetings/isstt/2006.shtml"
}