Characteristic mode analysis of a compact circularly polarized rotated square slot antenna
Presented in this paper is a circularly polarized (CP) wide 45° rotated slot antenna with a broad bandwidth. Characteristic mode analysis is initially carried out to show that, by simply rotating a square slot, CP waves can be radiated if it is properly excited. A simple 50 Ω feedline is then design...
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| Veröffentlicht in: | Microwave and optical technology letters Jg. 65; H. 6; S. 1762 - 1769 |
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01.06.2023
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| Abstract | Presented in this paper is a circularly polarized (CP) wide 45° rotated slot antenna with a broad bandwidth. Characteristic mode analysis is initially carried out to show that, by simply rotating a square slot, CP waves can be radiated if it is properly excited. A simple 50 Ω feedline is then designed to excite the slot for the generation of broadband CP waves. The antenna has a total volume of 30 × 30 × 1.6 mm3. Measurement results indicate a broad S11 ≤ −10 dB impedance bandwidth of 85.7% (3.2–8 GHz), a broadband 3 dB axial ratio bandwidth of 57.1% (3.5–6.3 GHz) and a peak gain of 3.6 dBi are obtained by the antenna. The proposed antenna possesses stable radiation patterns as well as relatively flat gain over its operational bandwidth in addition to being compact. It can thus be used for wireless technologies such as WiMAX 3.5 and 5.5 GHz, WLAN 5.2 and 5.8 GHz in addition to Industrial, Scientific, and Medical 5.8 GHz. |
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| AbstractList | Presented in this paper is a circularly polarized (CP) wide 45° rotated slot antenna with a broad bandwidth. Characteristic mode analysis is initially carried out to show that, by simply rotating a square slot, CP waves can be radiated if it is properly excited. A simple 50 Ω feedline is then designed to excite the slot for the generation of broadband CP waves. The antenna has a total volume of 30 × 30 × 1.6 mm3. Measurement results indicate a broad S11 ≤ −10 dB impedance bandwidth of 85.7% (3.2–8 GHz), a broadband 3 dB axial ratio bandwidth of 57.1% (3.5–6.3 GHz) and a peak gain of 3.6 dBi are obtained by the antenna. The proposed antenna possesses stable radiation patterns as well as relatively flat gain over its operational bandwidth in addition to being compact. It can thus be used for wireless technologies such as WiMAX 3.5 and 5.5 GHz, WLAN 5.2 and 5.8 GHz in addition to Industrial, Scientific, and Medical 5.8 GHz. Presented in this paper is a circularly polarized (CP) wide 45° rotated slot antenna with a broad bandwidth. Characteristic mode analysis is initially carried out to show that, by simply rotating a square slot, CP waves can be radiated if it is properly excited. A simple 50 Ω feedline is then designed to excite the slot for the generation of broadband CP waves. The antenna has a total volume of 30 × 30 × 1.6 mm 3 . Measurement results indicate a broad S 11 ≤ −10 dB impedance bandwidth of 85.7% (3.2–8 GHz), a broadband 3 dB axial ratio bandwidth of 57.1% (3.5–6.3 GHz) and a peak gain of 3.6 dBi are obtained by the antenna. The proposed antenna possesses stable radiation patterns as well as relatively flat gain over its operational bandwidth in addition to being compact. It can thus be used for wireless technologies such as WiMAX 3.5 and 5.5 GHz, WLAN 5.2 and 5.8 GHz in addition to Industrial, Scientific, and Medical 5.8 GHz. |
| Author | Kponyo, Jerry John Oteng Gyasi, Kwame Obeng Kwakye, Kingsford Sarkodie Ahmed, Abdul‐Rahman Boukarkar, Abdelheq Basit, Muhammad Abdul Shoaib, Nosherwan Ellis, Mubarak Sani |
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| Cites_doi | 10.1109/ACCESS.2018.2885015 10.1109/MAP.2007.4395295 10.1109/TAP.2016.2618478 10.1109/TAP.2012.2186224 10.1109/LAWP.2011.2147271 10.1109/TAP.2016.2526076 10.1109/LAWP.2008.921341 10.1109/8.52265 10.1109/TAP.2009.2015859 10.2528/PIERL16111105 10.1002/mmce.22612 10.1017/S1759078721000635 10.1109/LAWP.2018.2789430 10.1109/TAP.2013.2267719 10.1109/LAWP.2013.2280457 10.1002/mmce.22518 10.1002/9781119038900 10.1109/TAP.2008.923340 10.1109/IEEE-IWS.2016.7585437 |
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| SubjectTerms | Antenna radiation patterns Bandwidths Broadband broadband antennas characteristic mode analysis Circular polarization circularly polarized antennas microstrip slot antennas Slot antennas |
| Title | Characteristic mode analysis of a compact circularly polarized rotated square slot antenna |
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