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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Johansson, F.S. Josefsson, L.G. Lorentzon, T. |
| Copyright Year | 1988 |
| Description | Author affiliation: Div. of Network Theory, Chalmers Univ. of Technol., Gothenburg, Sweden (Johansson, F.S.) |
| Abstract | A frequency-scanned antenna was designed that operates over a 10% frequency bandwidth performing at least a 10 degrees scan range. The antenna operates between 8.5-9.5 GHz, and the shape of the reflector is predicted to be optimally focused at 9.0 GHz. For a cylindrical reflector the angle of incidence to the normal of the surface varies between theta =17 degrees -35 degrees . The computed optimized performance over this range is shown. A simplified model was used to predict the radiation pattern of the antenna system. According to this model, the radiation pattern of the dipole array was computed with the amplitude and phase of each dipole given by the distance to the feed and the tapered illumination of the feed. It is seen that the suppression of the basic beam is of the order of 20 dB. For the frequency-scanned beam, the correspondence with the simplified theory is excellent.< |
| Starting Page | 482 |
| Ending Page | 485 |
| File Size | 96531 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/APS.1988.94113 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1988-06-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency Reflector antennas Antenna radiation patterns Phased arrays Feeds Bandwidth Shape Predictive models Dipole antennas Lighting |
| Content Type | Text |
| Resource Type | Article |
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