Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications
In this paper, a new dual-band circularly polarized (CP) dielectric resonator antenna for WLAN and WiMAX applications is proposed. The dielectric resonator has an asymmetric Y-shaped geometry. By properly selecting the length of the arms, the pairs of fundamental (TE<inline-formula> <math d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/4/1137 |
| _version_ | 1798041353361293312 |
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| author | Amir Altaf Munkyo Seo |
| author_facet | Amir Altaf Munkyo Seo |
| author_sort | Amir Altaf |
| collection | DOAJ |
| description | In this paper, a new dual-band circularly polarized (CP) dielectric resonator antenna for WLAN and WiMAX applications is proposed. The dielectric resonator has an asymmetric Y-shaped geometry. By properly selecting the length of the arms, the pairs of fundamental (TE<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>111</mn> </msub> </semantics> </math> </inline-formula>) and second-order (TE<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>211</mn> </msub> </semantics> </math> </inline-formula>) are excited separately at the design frequencies to radiate the CP wave. The measurement shows that the fabricated antenna exhibits a wide impedance bandwidth for |S<inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mrow></mrow> <mn>11</mn> </msub> <mrow> <mo>|</mo> <mo><</mo> </mrow> </mrow> </semantics> </math> </inline-formula>−10 dB of 62.07% (2.2−4.18 GHz). The far-field measurements in the broadside direction demonstrated a dual-band CP response with 3 dB ARBWs of 4.92%(2.38−2.5 GHz) at the lower and 12.64% (3.26−3.70 GHz) at the upper band. The measured CP bands cover the entire frequency range of WLAN (2.401−2.495 GHz) and WiMAX (3.4−3.69 GHz) at the lower and upper bands, respectively. |
| first_indexed | 2024-04-11T22:20:22Z |
| format | Article |
| id | doaj.art-b96f4bdd538a463497fca2b4b56d5f5c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:20:22Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b96f4bdd538a463497fca2b4b56d5f5c2022-12-22T04:00:10ZengMDPI AGSensors1424-82202020-02-01204113710.3390/s20041137s20041137Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX ApplicationsAmir Altaf0Munkyo Seo1Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 440-746, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 440-746, KoreaIn this paper, a new dual-band circularly polarized (CP) dielectric resonator antenna for WLAN and WiMAX applications is proposed. The dielectric resonator has an asymmetric Y-shaped geometry. By properly selecting the length of the arms, the pairs of fundamental (TE<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>111</mn> </msub> </semantics> </math> </inline-formula>) and second-order (TE<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>211</mn> </msub> </semantics> </math> </inline-formula>) are excited separately at the design frequencies to radiate the CP wave. The measurement shows that the fabricated antenna exhibits a wide impedance bandwidth for |S<inline-formula> <math display="inline"> <semantics> <mrow> <msub> <mrow></mrow> <mn>11</mn> </msub> <mrow> <mo>|</mo> <mo><</mo> </mrow> </mrow> </semantics> </math> </inline-formula>−10 dB of 62.07% (2.2−4.18 GHz). The far-field measurements in the broadside direction demonstrated a dual-band CP response with 3 dB ARBWs of 4.92%(2.38−2.5 GHz) at the lower and 12.64% (3.26−3.70 GHz) at the upper band. The measured CP bands cover the entire frequency range of WLAN (2.401−2.495 GHz) and WiMAX (3.4−3.69 GHz) at the lower and upper bands, respectively.https://www.mdpi.com/1424-8220/20/4/1137dielectric resonator antennadual-band circular polarizationdual-sense circular polarizationsingle-point feeding |
| spellingShingle | Amir Altaf Munkyo Seo Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications Sensors dielectric resonator antenna dual-band circular polarization dual-sense circular polarization single-point feeding |
| title | Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications |
| title_full | Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications |
| title_fullStr | Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications |
| title_full_unstemmed | Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications |
| title_short | Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications |
| title_sort | dual band circularly polarized dielectric resonator antenna for wlan and wimax applications |
| topic | dielectric resonator antenna dual-band circular polarization dual-sense circular polarization single-point feeding |
| url | https://www.mdpi.com/1424-8220/20/4/1137 |
| work_keys_str_mv | AT amiraltaf dualbandcircularlypolarizeddielectricresonatorantennaforwlanandwimaxapplications AT munkyoseo dualbandcircularlypolarizeddielectricresonatorantennaforwlanandwimaxapplications |