Title :
EBG Enhanced Dielectric Lens Antennas for the Imaging at Sub-mm Waves
Author :
Baselmans, J.J.A. ; Yates, S. ; Neto, A. ; Bekers, D. ; Gerini, G. ; Baryshev, A. ; Lankwarden, Y.J.Y. ; Hoevers, H.
Author_Institution :
SRON Netherlands Inst. for Space Res., Utrecht
Abstract :
We have designed a novel sub-mm radiation detector based upon a twin slot antenna placed in the focus of a Si elliptical lens. We use a novel Electromagnetic Band Gap (EBG) super-layer, consisting of 2 frac14 lambda dielectric layers of Si (epsiv=11.7) and SiO2 (epsiv=4) and a Si carrier wafer to enhance the directivity of the feed. The antenna is coupled to a Kinetic Inductance Detector, KID, an extremely sensitive cryogenic radiation detector operating at 300 mK or lower temperatures. We present the design, implementation and measurements of the full detector, including optical sensitivity, frequency response and beam pattern.
Keywords :
lenses; photonic band gap; silicon; silicon compounds; submillimetre wave antennas; submillimetre wave detectors; submillimetre wave imaging; Si-SiO2; cryogenic radiation detector; dielectric lens antennas; electromagnetic band gap; elliptical lens; imaging; kinetic inductance detector; sub-mm radiation detector; sub-mm waves; temperature 300 mK; twin slot antenna; Dielectrics; Feeds; Focusing; Inductance; Kinetic theory; Lenses; Optical design; Optical imaging; Radiation detectors; Slot antennas;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751609
