OPTIMIZATION OF MICROMACHINED MILLIMETER-WAVE PLANAR SILICON LENS ANTENNAS WITH CONCENTRIC AND SHIFTED MATCHING REGIONS
| Autor: | Sergey Dudorov, Fritzi Töpfer, Henrik Frid, Shreyasi Bhowmik, Joachim Oberhammer |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Permittivity Matching (statistics) Materials science Silicon business.industry Lens antennas chemistry.chemical_element 020206 networking & telecommunications 02 engineering and technology Electrical Engineering Electronic Engineering Information Engineering Concentric Electronic Optical and Magnetic Materials 03 medical and health sciences 030104 developmental biology Planar Optics chemistry Extremely high frequency 0202 electrical engineering electronic engineering information engineering Elektroteknik och elektronik business |
| Zdroj: | Progress In Electromagnetics Research C. 79:17-29 |
| ISSN: | 1937-8718 2016-1115 |
| DOI: | 10.2528/pierc17082106 |
| Popis: | This paper presents a study of planar silicon lens antennas with up to three stepped-impedance matching regions. The effective permittivity of the matching regions is tailor-made byetching periodic holes in the silicon substrate. The optimal thickness and permittivity of the matchingregions were determined by numerical optimization to obtain the maximum wideband aperture efficiencyand smallest side-lobes. We introduce a new geometry for the matching regions, referred to as shiftedmatching regions. The simulation results indicate that using three shifted matching regions results intwice as large aperture efficiency as compared to using three conventional concentric matching regions.By increasing the number of matching regions from one to three, the band-averaged gain is increasedby 0.3 dB when using concentric matching regions, and by 3.7 dB when using shifted matching regions,which illustrates the advantage of the proposed shifted matching region design. QC 20161115 |
| Databáze: | OpenAIRE |
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