A Series of Frequency Shift Antennas Based on Shape Blending
| Autor: | Yuebin Sun, Tiejun Du, Aiting Wu, Pengquan Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Series (mathematics) Article Subject Aperture Frequency band Acoustics 020208 electrical & electronic engineering Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Translation (geometry) law.invention TK1-9971 law 0202 electrical engineering electronic engineering information engineering HE9713-9715 Electrical engineering. Electronics. Nuclear engineering Electrical and Electronic Engineering Radar Antenna (radio) Omnidirectional antenna Cellular telephone services industry. Wireless telephone industry |
| Zdroj: | International Journal of Antennas and Propagation, Vol 2021 (2021) |
| ISSN: | 1687-5877 1687-5869 |
| Popis: | In this paper, an automatic antenna design method based on the shape blending algorithm is proposed. The algorithm is used to construct the shape of the wide slot of a CPW-fed antenna. Firstly, two basic shapes are chosen as the initial shape and the target shape. The shape blending process is then applied on them to get a series of shapes, which are used as the geometry structure of the wide slot. In this way, a series of CPW-fed wide slot antennas are obtained. And they have similar but gradually changing characteristics. The bandwidth ranges are 8.00–9.24 GHz, 7.95–9.05 GHz, 7.05–8.55 GHz, 6.95–8.13 GHz, and 6.55–7.50 GHz, respectively. The overall size of the antenna is 26 mm ∗ 20 mm ∗ 0.6 mm. Experimental results show that the resonant frequencies vary (via translation) with the change of slot shape in a specific frequency band. The experiments also validate that the antennas have omnidirectional radiation characteristics. The radiation gains and aperture efficiencies of the antennas are about 3.8–5.5 dBi and 57.7–83.0% at their centre frequencies, respectively. The experiment results show that the proposed antennas could be used in C-band and X-band radar applications. |
| Databáze: | OpenAIRE |
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