Wideband Single Arm Spiral Antennas
Conventional spiral antenna theory holds that at least two arms are necessary for useful wideband antenna performance. However, we will show here that good wideband mode 1 performance can be achieved with a single spiral arm. The main benefit is a simplified design and lower manufacturing costs due...
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| Format: | Tagungsbericht |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | Conventional spiral antenna theory holds that at least two arms are necessary for useful wideband antenna performance. However, we will show here that good wideband mode 1 performance can be achieved with a single spiral arm. The main benefit is a simplified design and lower manufacturing costs due to no longer needing a beamforming network to properly feed and phase the multi-arm spiral antenna. The key is in careful design and manufacturing of the feed region such that it introduces a gradual taper from the ground plane near the feed into the spiral geometry. |
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| ISSN: | 1054-4887 |