Title :
Sub-Millimeter-Wave Imaging Array at 500 GHz Based on 3-D Electromagnetic-Bandgap Material
Author :
Ederra, Iñigo ; Gonzalo, Ramón ; Alderman, Byron E J ; Huggard, Peter G. ; De Hon, Bastiaan P. ; van Beurden, Martijn C. ; Murk, Axel ; Marchand, Laurent ; De Maagt, Peter
Author_Institution :
Electr. & Electron. Eng. Dept., Univ. Publica de Navarra, Pamplona
Abstract :
The design, fabrication, and characterization of a 500-GHz electromagnetic bandgap (EBG) based heterodyne receiver array is presented. The array contained seven planar dipole antennas that were photolithographically defined on a common 20-mum-thick quartz substrate. Each antenna incorporated a Schottky diode and was connected to coplanar transmission lines that conveyed the down-converted 500-GHz signals to detectors. The quartz substrate was backed by a silicon EBG woodpile structure, which reduced antenna crosstalk and increased directivity. An off-axis parabolic mirror completed the beam-forming network.
Keywords :
dipole antenna arrays; directive antennas; heterodyne detection; photonic band gap; planar antenna arrays; receiving antennas; submillimetre wave detectors; submillimetre wave imaging; submillimetre wave receivers; 3-D electromagnetic-bandgap material; Schottky diode; Si; SiO2; antenna crosstalk; antenna directivity; beam-forming network; coplanar transmission lines; frequency 500 GHz; heterodyne receiver array; off-axis parabolic mirror; photolithography; planar dipole antennas; quartz substrate; silicon EBG woodpile structure; size 20 mum; sub-millimeter-wave imaging array; Electromagnetic bandgap (EBG) technology; imaging array; millimeter-wave technology;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2008.2005926
