Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication
This paper presents a bi-port, single-layered (planar), dual circularly polarized (CP) patch antenna with improved interport isolation for S-band satellite telemetry and telecommand applications. The dual-port, planar antenna is based on a square-shaped radiator with trimmed corner to achieve CP cha...
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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/10.1155/2021/8022207 |
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| _version_ | 1832545937945264128 |
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| author | Haq Nawaz Ahmad Umar Niazi Mansoor Ahmad |
| author_facet | Haq Nawaz Ahmad Umar Niazi Mansoor Ahmad |
| author_sort | Haq Nawaz |
| collection | DOAJ |
| description | This paper presents a bi-port, single-layered (planar), dual circularly polarized (CP) patch antenna with improved interport isolation for S-band satellite telemetry and telecommand applications. The dual-port, planar antenna is based on a square-shaped radiator with trimmed corner to achieve CP characteristics (RHCP and LHCP) for excitations from respective ports. However, the RF isolation between the two ports is very low due to strong power leakage from transmit (Tx) to transmit (Rx) port. The externally employed tunable self-interference cancellation (SIC) circuit achieves high isolation between orthogonal ports while axial ratio (AR) is ≤3 dB for both right and left handed circular polarization modes. The employed single-tap SIC circuit/loop attains the high interport isolation through signal inversion mechanism. The proposed antenna design achieves ≥72 dB peak interport isolation in addition to ≥30 dB and 15 dB port to port isolation over the isolation or SIC bandwidths of 15 MHz and 90 MHz (−10 dB bandwidth for both ports), respectively. The port to port isolation performance is improved without significant degradation in antenna radiation characteristics. The validation model of the presented planar antenna based on single element characterizes much better measured interport isolation performance compared to those dual CP printed antennas reported earlier as endorsed through detailed comparison |
| format | Article |
| id | doaj-art-9cb7dd8ed23b4d22bbc6fc201bab0438 |
| 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-9cb7dd8ed23b4d22bbc6fc201bab04382025-02-03T07:24:22ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772021-01-01202110.1155/2021/80222078022207Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite CommunicationHaq Nawaz0Ahmad Umar Niazi1Mansoor Ahmad2Electrical Engineering, University of Engineering and Technology (UET), Lahore, PakistanElectronics Engineering, University of Engineering and Technology (UET), Taxila, PakistanDepartment of Electronics, University of Buner, Buner, Khyber Pakhtunkhwa, PakistanThis paper presents a bi-port, single-layered (planar), dual circularly polarized (CP) patch antenna with improved interport isolation for S-band satellite telemetry and telecommand applications. The dual-port, planar antenna is based on a square-shaped radiator with trimmed corner to achieve CP characteristics (RHCP and LHCP) for excitations from respective ports. However, the RF isolation between the two ports is very low due to strong power leakage from transmit (Tx) to transmit (Rx) port. The externally employed tunable self-interference cancellation (SIC) circuit achieves high isolation between orthogonal ports while axial ratio (AR) is ≤3 dB for both right and left handed circular polarization modes. The employed single-tap SIC circuit/loop attains the high interport isolation through signal inversion mechanism. The proposed antenna design achieves ≥72 dB peak interport isolation in addition to ≥30 dB and 15 dB port to port isolation over the isolation or SIC bandwidths of 15 MHz and 90 MHz (−10 dB bandwidth for both ports), respectively. The port to port isolation performance is improved without significant degradation in antenna radiation characteristics. The validation model of the presented planar antenna based on single element characterizes much better measured interport isolation performance compared to those dual CP printed antennas reported earlier as endorsed through detailed comparisonhttp://dx.doi.org/10.1155/2021/8022207 |
| spellingShingle | Haq Nawaz Ahmad Umar Niazi Mansoor Ahmad Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication International Journal of Antennas and Propagation |
| title | Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication |
| title_full | Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication |
| title_fullStr | Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication |
| title_full_unstemmed | Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication |
| title_short | Dual Circularly Polarized Patch Antenna with Improved Interport Isolation for S-Band Satellite Communication |
| title_sort | dual circularly polarized patch antenna with improved interport isolation for s band satellite communication |
| url | http://dx.doi.org/10.1155/2021/8022207 |
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