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Ka‐band quasioptical detectors based on antenna‐integrated planar Schottky diodes
Author(s) -
Mou Jinchao,
Lv Xin,
Yuan Yong,
Yu Weihua
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26168
Subject(s) - responsivity , noise equivalent power , schottky diode , planar , microwave , antenna (radio) , detector , optoelectronics , optics , diode , radiation , physics , electrical engineering , materials science , engineering , computer science , computer graphics (images) , quantum mechanics
This letter presents a quasioptical monolithic detector for Ka‐band applications.It consists of an antenna‐integrated planar Schottky diode and an extended semispherical lens. A three‐dimensional electromagnetic model is built for evaluating its radiation performance. The responsivity of the detector ranges from 712 to 1483 mV mW −1 over 26.5∼ 40 GHz under the bias voltage of 0.8 V, corresponding to the estimated noise equivalent power between 2.5E−11 and 5.2E−11 W Hz −1/2 . The radiation patterns are measured and agree well with the simulated ones, showing the validity of the proposed model. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26168