Title :
Absorbing Frequency-Selective-Surface for the mm-Wave Range
Author :
Sakran, Fadi ; Neve-Oz, Yair ; Ron, Amichai ; Golosovsky, Michael ; Davidov, Dan ; Frenkel, Avraham
Author_Institution :
Racah Inst. of Phys., Hebrew Univ. of Jerusalem, Jerusalem
Abstract :
We report on a millimeter-wave (mm-wave) absorber based on the frequency selective surface. It consists of a periodic array of resistive patches on a grounded dielectric layer. By varying the shape of the patches and the distance between them, the device can be tuned to absorb in a given frequency band. We designed and fabricated several devices consisting of square arrays of Nichrome circles or rings. The design was targeted to the mm-wave range, 75-110 GHz. Our measurements of the mm-wave reflection from these devices show good agreement with computer simulations. We discuss the use of our device as a microbolometer array.
Keywords :
electromagnetic wave absorption; frequency selective surfaces; microstrip antennas; millimetre wave antennas; frequency 75 GHz to 110 GHz; frequency selective surface; grounded dielectric layer; microbolometer array; millimeter-wave absorber; mm-wave reflection; periodic array; resistive patch; Bandwidth; Conductive films; Conductivity; Dielectrics; Electromagnetic shielding; Fabrication; Frequency selective surfaces; Millimeter wave communication; Millimeter wave radar; Reflection; Absorber; frequency selective surfaces (FSS); millimeter-wave (mm-wave);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.924701
