A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications
This paper presents a circularly polarized (CP) microstrip antenna with dual circular polarization that is fed using a 3 dB 90° hybrid coupler to ensure dual-CP radiation. The proximity-coupled structure is used as a feeding technique to obtain a larger operational bandwidth that covers the standard...
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2024-12-01
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| author | Atyaf H. Mohammed Falih M. Alnahwi Yasir I. A. Al-Yasir |
| author_facet | Atyaf H. Mohammed Falih M. Alnahwi Yasir I. A. Al-Yasir |
| author_sort | Atyaf H. Mohammed |
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| description | This paper presents a circularly polarized (CP) microstrip antenna with dual circular polarization that is fed using a 3 dB 90° hybrid coupler to ensure dual-CP radiation. The proximity-coupled structure is used as a feeding technique to obtain a larger operational bandwidth that covers the standard LTE 43 of the 5G mid-band applications (3.6–3.8 GHz). The antenna was fabricated on an FR4 dielectric substrate with overall dimensions of 66.1 × 35 × 1.6 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">m</mi><mi mathvariant="normal">m</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>. A circular patch was formed as a radiating element, with four identical slits that were etched on the patch to guarantee the presence of CP radiation at the required mid-band of the 5G frequency range. The measured impedance bandwidth (BW) of this antenna was 10.6% (3.46–3.85 GHz), while the 3 dB axial ratio bandwidth (ARBW) was 8.2% along the range (3.50–3.80 GHz). The measured average gain was about 1.3 dBi along the antenna impedance bandwidth. |
| format | Article |
| id | doaj-art-c61b0e4dcc6345b6998e4a64babb9b61 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
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| spelling | doaj-art-c61b0e4dcc6345b6998e4a64babb9b612024-12-27T14:08:38ZengMDPI AGApplied Sciences2076-34172024-12-0114241187710.3390/app142411877A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G ApplicationsAtyaf H. Mohammed0Falih M. Alnahwi1Yasir I. A. Al-Yasir2Department of Electrical Engineering, College of Engineering, University of Basrah, Basrah 61001, IraqDepartment of Electrical Engineering, College of Engineering, University of Basrah, Basrah 61001, IraqFaculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, UKThis paper presents a circularly polarized (CP) microstrip antenna with dual circular polarization that is fed using a 3 dB 90° hybrid coupler to ensure dual-CP radiation. The proximity-coupled structure is used as a feeding technique to obtain a larger operational bandwidth that covers the standard LTE 43 of the 5G mid-band applications (3.6–3.8 GHz). The antenna was fabricated on an FR4 dielectric substrate with overall dimensions of 66.1 × 35 × 1.6 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi mathvariant="normal">m</mi><mi mathvariant="normal">m</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>. A circular patch was formed as a radiating element, with four identical slits that were etched on the patch to guarantee the presence of CP radiation at the required mid-band of the 5G frequency range. The measured impedance bandwidth (BW) of this antenna was 10.6% (3.46–3.85 GHz), while the 3 dB axial ratio bandwidth (ARBW) was 8.2% along the range (3.50–3.80 GHz). The measured average gain was about 1.3 dBi along the antenna impedance bandwidth.https://www.mdpi.com/2076-3417/14/24/118773 dB hybrid couplerdual circular polarizationproximity coupledaxial ratio |
| spellingShingle | Atyaf H. Mohammed Falih M. Alnahwi Yasir I. A. Al-Yasir A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications Applied Sciences 3 dB hybrid coupler dual circular polarization proximity coupled axial ratio |
| title | A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications |
| title_full | A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications |
| title_fullStr | A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications |
| title_full_unstemmed | A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications |
| title_short | A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity-Coupled Feeding for LTE 43 5G Applications |
| title_sort | circularly polarized microstrip antenna with dual circular polarization using a 90° hybrid coupler and proximity coupled feeding for lte 43 5g applications |
| topic | 3 dB hybrid coupler dual circular polarization proximity coupled axial ratio |
| url | https://www.mdpi.com/2076-3417/14/24/11877 |
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