The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns
A wideband strip-helical antenna with 1.1 turns is analyzed numerically and experimentally. By replacing the traditional wire helix with wide metallic strip, the forward traveling current on the strip helix with about one turn smoothly decays to the minimum value at the open end of the helix. Theref...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/5950472 |
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| author | Xihui Tang Botao Feng Yunliang Long |
| author_facet | Xihui Tang Botao Feng Yunliang Long |
| author_sort | Xihui Tang |
| collection | DOAJ |
| description | A wideband strip-helical antenna with 1.1 turns is analyzed numerically and experimentally. By replacing the traditional wire helix with wide metallic strip, the forward traveling current on the strip helix with about one turn smoothly decays to the minimum value at the open end of the helix. Therefore, the strip helix can excite a wideband circular polarization (CP) wave with 50-ohm impedance matching. The proposed antenna is printed on a hollow-cylinder with a substrate relative permittivity of εr=2.2 and a thickness of h=0.5 mm. A 50 Ω coaxial cable is directly connected to excite the strip-helical antenna without any additional impedance matching section. The ground plane is placed below the antenna in order to provide a directional radiation pattern. To demonstrate this method, a prototype of 1.1-turn strip-helical antenna is tested. The test shows that the proposed antenna can reach an overlapped bandwidth of 46% with height of 0.52λ0, where λ0 is the wavelength in free space at the center operation frequency. |
| format | Article |
| id | doaj-art-7354ec507b7c4786936ca2dd1a6ebea8 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7354ec507b7c4786936ca2dd1a6ebea82025-02-03T01:02:39ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/59504725950472The Analysis of a Wideband Strip-Helical Antenna with 1.1 TurnsXihui Tang0Botao Feng1Yunliang Long2Shenzhen Key Laboratory of Antennas and Propagation, College of Information Engineering, Shenzhen University, Room No. 906, Nanhai Avenue 3688, Shenzhen, Guangdong 518060, ChinaShenzhen Key Laboratory of Antennas and Propagation, College of Electronic Science and Technology, Shenzhen University, ChinaDepartment of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, ChinaA wideband strip-helical antenna with 1.1 turns is analyzed numerically and experimentally. By replacing the traditional wire helix with wide metallic strip, the forward traveling current on the strip helix with about one turn smoothly decays to the minimum value at the open end of the helix. Therefore, the strip helix can excite a wideband circular polarization (CP) wave with 50-ohm impedance matching. The proposed antenna is printed on a hollow-cylinder with a substrate relative permittivity of εr=2.2 and a thickness of h=0.5 mm. A 50 Ω coaxial cable is directly connected to excite the strip-helical antenna without any additional impedance matching section. The ground plane is placed below the antenna in order to provide a directional radiation pattern. To demonstrate this method, a prototype of 1.1-turn strip-helical antenna is tested. The test shows that the proposed antenna can reach an overlapped bandwidth of 46% with height of 0.52λ0, where λ0 is the wavelength in free space at the center operation frequency.http://dx.doi.org/10.1155/2016/5950472 |
| spellingShingle | Xihui Tang Botao Feng Yunliang Long The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns International Journal of Antennas and Propagation |
| title | The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns |
| title_full | The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns |
| title_fullStr | The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns |
| title_full_unstemmed | The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns |
| title_short | The Analysis of a Wideband Strip-Helical Antenna with 1.1 Turns |
| title_sort | analysis of a wideband strip helical antenna with 1 1 turns |
| url | http://dx.doi.org/10.1155/2016/5950472 |
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