Analysis of Connected Arrays and Capacitively Coupled Arrays
The concept of connected and capacitively coupled dipoles in a planar array, which improves wideband performance, is investigated. A long wire with multiple feeds acts as an array in connected arrays, whereas a capacitively coupled array uses capacitors between array elements. Both approaches attemp...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9727113/ |
| _version_ | 1818157211569881088 |
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| author | Seyed Mahdi Hosseini Zahra Atlasbaf |
| author_facet | Seyed Mahdi Hosseini Zahra Atlasbaf |
| author_sort | Seyed Mahdi Hosseini |
| collection | DOAJ |
| description | The concept of connected and capacitively coupled dipoles in a planar array, which improves wideband performance, is investigated. A long wire with multiple feeds acts as an array in connected arrays, whereas a capacitively coupled array uses capacitors between array elements. Both approaches attempt to approximate the current sheet of Wheeler. Using spectral Green’s function, the array active impedance is calculated. The impedance mismatch of a connected/capacitively coupled dipole array is less than that of an array of unconnected dipoles of the same size. Both direct and capacitive connections can be used to design a wideband array antenna with a ground plane, although capacitive coupling performs better than a direct connection. This fact resulted from numerous analytical studies using infinite dipole array scan (active) impedance endorsed by full-wave simulations using CST MWS. The maximum mismatch losses over the frequency band for different source (reference) impedances are used to find the best solution at the broadside. The average reflected power over all scan angles is applied, for the scan performance, and then, the maximum average mismatch loss over the frequency band is investigated. |
| first_indexed | 2024-12-11T15:10:35Z |
| format | Article |
| id | doaj.art-bf2eb4be3f5544c4b3d04e91b8dd26a6 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-11T15:10:35Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-bf2eb4be3f5544c4b3d04e91b8dd26a62022-12-22T01:00:47ZengIEEEIEEE Access2169-35362022-01-0110281472815410.1109/ACCESS.2022.31565949727113Analysis of Connected Arrays and Capacitively Coupled ArraysSeyed Mahdi Hosseini0https://orcid.org/0000-0001-7193-5573Zahra Atlasbaf1https://orcid.org/0000-0003-4326-6135Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, IranDepartment of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, IranThe concept of connected and capacitively coupled dipoles in a planar array, which improves wideband performance, is investigated. A long wire with multiple feeds acts as an array in connected arrays, whereas a capacitively coupled array uses capacitors between array elements. Both approaches attempt to approximate the current sheet of Wheeler. Using spectral Green’s function, the array active impedance is calculated. The impedance mismatch of a connected/capacitively coupled dipole array is less than that of an array of unconnected dipoles of the same size. Both direct and capacitive connections can be used to design a wideband array antenna with a ground plane, although capacitive coupling performs better than a direct connection. This fact resulted from numerous analytical studies using infinite dipole array scan (active) impedance endorsed by full-wave simulations using CST MWS. The maximum mismatch losses over the frequency band for different source (reference) impedances are used to find the best solution at the broadside. The average reflected power over all scan angles is applied, for the scan performance, and then, the maximum average mismatch loss over the frequency band is investigated.https://ieeexplore.ieee.org/document/9727113/Array active impedancearray scan impedanceconnected arraytightly-coupled arraywideband array antenna |
| spellingShingle | Seyed Mahdi Hosseini Zahra Atlasbaf Analysis of Connected Arrays and Capacitively Coupled Arrays IEEE Access Array active impedance array scan impedance connected array tightly-coupled array wideband array antenna |
| title | Analysis of Connected Arrays and Capacitively Coupled Arrays |
| title_full | Analysis of Connected Arrays and Capacitively Coupled Arrays |
| title_fullStr | Analysis of Connected Arrays and Capacitively Coupled Arrays |
| title_full_unstemmed | Analysis of Connected Arrays and Capacitively Coupled Arrays |
| title_short | Analysis of Connected Arrays and Capacitively Coupled Arrays |
| title_sort | analysis of connected arrays and capacitively coupled arrays |
| topic | Array active impedance array scan impedance connected array tightly-coupled array wideband array antenna |
| url | https://ieeexplore.ieee.org/document/9727113/ |
| work_keys_str_mv | AT seyedmahdihosseini analysisofconnectedarraysandcapacitivelycoupledarrays AT zahraatlasbaf analysisofconnectedarraysandcapacitivelycoupledarrays |