Abstract
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
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