Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application
A compact, low-profile, two-port dual-band circularly polarized (CP) stacked patch antenna for radio-frequency identification (RFID) multiple-input-multiple-output (MIMO) readers is proposed, which employs the shared-aperture technique. The proposed antenna adopts a 1.524 mm thickness Rogers Ro4350b...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2021/9991748 |
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| _version_ | 1832565911847960576 |
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| author | Enze Zhang Andrea Michel Paolo Nepa Jinghui Qiu |
| author_facet | Enze Zhang Andrea Michel Paolo Nepa Jinghui Qiu |
| author_sort | Enze Zhang |
| collection | DOAJ |
| description | A compact, low-profile, two-port dual-band circularly polarized (CP) stacked patch antenna for radio-frequency identification (RFID) multiple-input-multiple-output (MIMO) readers is proposed, which employs the shared-aperture technique. The proposed antenna adopts a 1.524 mm thickness Rogers Ro4350b substrate with relative permittivity of 3.48. Two pairs of isolated ports are working at two microwave- (MW-) RFID bands (2.4–2.485 GHz and 5.725–5.875 GHz) with high port isolation of 25 dB and 30 dB, respectively. A shared metal slot layer is designed to separate two feeding structures of the lower band and upper band for port isolation enhancement as well as saving space. Corner-truncated square slot and patch configurations have been designed to obtain CP modes. In the lower and upper MW-RFID bands, the relative impedance bandwidths are 12.2% and 5.7%, and the maximum realized gains are higher than 7.3 dBic. Moreover, two-element configurations have been combined for an RFID MIMO system that occupies a dimension of 119 mm × 119 mm × 12.9 mm. The MIMO antenna performance of envelope correlation coefficient (ECC) is lower than 0.03, and diversity gain is close to 10 dB. |
| format | Article |
| id | doaj-art-28c59193efd3478db9682514cd683162 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-28c59193efd3478db9682514cd6831622025-02-03T01:05:33ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772021-01-01202110.1155/2021/99917489991748Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output ApplicationEnze Zhang0Andrea Michel1Paolo Nepa2Jinghui Qiu3School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalyDepartment of Information Engineering, University of Pisa, 56122 Pisa, ItalySchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaA compact, low-profile, two-port dual-band circularly polarized (CP) stacked patch antenna for radio-frequency identification (RFID) multiple-input-multiple-output (MIMO) readers is proposed, which employs the shared-aperture technique. The proposed antenna adopts a 1.524 mm thickness Rogers Ro4350b substrate with relative permittivity of 3.48. Two pairs of isolated ports are working at two microwave- (MW-) RFID bands (2.4–2.485 GHz and 5.725–5.875 GHz) with high port isolation of 25 dB and 30 dB, respectively. A shared metal slot layer is designed to separate two feeding structures of the lower band and upper band for port isolation enhancement as well as saving space. Corner-truncated square slot and patch configurations have been designed to obtain CP modes. In the lower and upper MW-RFID bands, the relative impedance bandwidths are 12.2% and 5.7%, and the maximum realized gains are higher than 7.3 dBic. Moreover, two-element configurations have been combined for an RFID MIMO system that occupies a dimension of 119 mm × 119 mm × 12.9 mm. The MIMO antenna performance of envelope correlation coefficient (ECC) is lower than 0.03, and diversity gain is close to 10 dB.http://dx.doi.org/10.1155/2021/9991748 |
| spellingShingle | Enze Zhang Andrea Michel Paolo Nepa Jinghui Qiu Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application International Journal of Antennas and Propagation |
| title | Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application |
| title_full | Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application |
| title_fullStr | Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application |
| title_full_unstemmed | Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application |
| title_short | Compact Dual-Band Circularly Polarized Stacked Patch Antenna for Microwave-Radio-Frequency Identification Multiple-Input-Multiple-Output Application |
| title_sort | compact dual band circularly polarized stacked patch antenna for microwave radio frequency identification multiple input multiple output application |
| url | http://dx.doi.org/10.1155/2021/9991748 |
| work_keys_str_mv | AT enzezhang compactdualbandcircularlypolarizedstackedpatchantennaformicrowaveradiofrequencyidentificationmultipleinputmultipleoutputapplication AT andreamichel compactdualbandcircularlypolarizedstackedpatchantennaformicrowaveradiofrequencyidentificationmultipleinputmultipleoutputapplication AT paolonepa compactdualbandcircularlypolarizedstackedpatchantennaformicrowaveradiofrequencyidentificationmultipleinputmultipleoutputapplication AT jinghuiqiu compactdualbandcircularlypolarizedstackedpatchantennaformicrowaveradiofrequencyidentificationmultipleinputmultipleoutputapplication |