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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Santos, R.A. Penchel, R.A. Arismar, C.S. Mologni, J.F. |
| Copyright Year | 2015 |
| Description | Author affiliation: Electron. Design Autom. Dept., ESSS, Sao Paulo, Brazil (Mologni, J.F.) || Lab. of Wireless & Opt. Convergent Access, Nat. Inst. of Telecommun., Santa Rita do Sapucaí, Brazil (Santos, R.A.; Penchel, R.A.; Arismar, C.S.) |
| Abstract | This work proposes and numerically investigates a high-performance omnidirectional dual-reflector antenna based on a dielectric subreflector support and a shaped main reflector that provides a cosecant square radiation pattern in the elevation plane. Two mechanical subreflector supports were considered: three metallic rods with circular cross section; a cylindrical homogeneous dielectric radome with electrical permittivity of 2.08. Numerical electromagnetic analyses were performed using ANSYS HFSS based on a hybrid technique that combines Finite Element Method (FEM) and Method of Moments (MoM). The proposed antenna with a dielectric support provides an omnidirectional radiation pattern in the horizontal plane with approximately 9.8dBi gain at 9.3GHz, which represents a significant improvement compared to conventional omnidirectional antennas that typically provide gains from 2.0 to 5.0 dBi. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 925730 |
| Page Count | 5 |
| File Format | |
| e-ISBN | 9781467394925 |
| DOI | 10.1109/IMOC.2015.7369127 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-11-03 |
| Publisher Place | Brazil |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Antenna radiation patterns Dielectrics Reflector antennas Finite element analysis Geometry Numerical models Method of moments dieletric radome and omnidirectional dual-reflector antenna cosecant square radiation pattern |
| Content Type | Text |
| Resource Type | Article |
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