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

fYear

2008

fDate

27-31 Oct. 2008

Firstpage

940

Lastpage

942

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. EuMC 2008. 38th European

Conference_Location

Amsterdam

Print_ISBN

978-2-87487-006-4

Type

conf

DOI

10.1109/EUMC.2008.4751609

Filename

4751609