Open AccessPolarisation‐sensitive sub‐terahertz‐wave detector implementing antenna‐integrated zero‐bias Schottky barrier diode
Author(s) -
Ito H.,
Yoshimatsu T.,
Yamamoto H.,
Ishibashi T.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.1990
Subject(s) - terahertz radiation , schottky diode , detector , optics , antenna (radio) , optoelectronics , ranging , materials science , diode , schottky barrier , signal (programming language) , physics , electrical engineering , telecommunications , engineering , computer science , programming language
A polarisation‐sensitive sub‐terahertz‐wave detector has been developed by integrating an InP/InGaAsP Schottky barrier diode and a modified bowtie antenna. The fabricated quasi‐optical module could detect signals at frequencies ranging from 30 GHz to 1 THz. The measured sensitivities were 1080 V/W at 250 GHz, 250 V/W at 400 GHz and 86 V/W at 600 GHz for a zero‐bias condition. The principal polarisation axis angle for signal detection was confirmed to be stable within ±1.5° in a frequency ranging from 80 to 600 GHz, while the degree of polarisation was more than 95%.