Dual-Polarized Slot Antenna for Full-Duplex Systems With High Isolation
A single-layered slot antenna system working at 5.8 GHz Industrial, Scientific and Medical (ISM) band is proposed for in-band full duplex (IBFD) operation applications without the use of a coupler. First, high isolation is achieved by strong separation of even- and odd-mode feeds. The microstrip-cou...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2021-11, Vol.69 (11), p.7119-7124 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Nguyen, Anh-Ngoc Hoang Le, Viet Nguyen-Trong, Nghia Radfar, Mohsen Ebrahimi, Amir Phan, Khoa Desai, Aniruddha |
| description | A single-layered slot antenna system working at 5.8 GHz Industrial, Scientific and Medical (ISM) band is proposed for in-band full duplex (IBFD) operation applications without the use of a coupler. First, high isolation is achieved by strong separation of even- and odd-mode feeds. The microstrip-coupled coplanar waveguide (CPW) is used at Port 1 (TX port) to excite a stepped-slot antenna in the CPW odd mode. On the opposite side, a microstrip T-junction power divider is employed at Port 2 (RX port) to feed two offset-fed stepped-slot antennas in even mode. Second, isolation is further improved by 30 dB by using a lumped capacitor at the termination of the CPW. The measured isolation between the two ports is about 50 dB across the bandwidth. The measured −10 dB bandwidth of Port 1 is 0.49 GHz (8.5%), while that of Port 2 is 1.06 GHz (18.3%). The gains of TX and RX antennas are 5.4 and 5.8 dBi at 5.8 GHz. The proposed antenna can also be deployed as a dual-polarized antenna. Mathematical analysis and equivalent transmission line circuit models are provided to give physical insight into the working principals of the antenna with validation from ANSYS HFSS simulation. |
| doi_str_mv | 10.1109/TAP.2020.3010959 |
| format | Article |
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First, high isolation is achieved by strong separation of even- and odd-mode feeds. The microstrip-coupled coplanar waveguide (CPW) is used at Port 1 (TX port) to excite a stepped-slot antenna in the CPW odd mode. On the opposite side, a microstrip T-junction power divider is employed at Port 2 (RX port) to feed two offset-fed stepped-slot antennas in even mode. Second, isolation is further improved by 30 dB by using a lumped capacitor at the termination of the CPW. The measured isolation between the two ports is about 50 dB across the bandwidth. The measured −10 dB bandwidth of Port 1 is 0.49 GHz (8.5%), while that of Port 2 is 1.06 GHz (18.3%). The gains of TX and RX antennas are 5.4 and 5.8 dBi at 5.8 GHz. The proposed antenna can also be deployed as a dual-polarized antenna. Mathematical analysis and equivalent transmission line circuit models are provided to give physical insight into the working principals of the antenna with validation from ANSYS HFSS simulation.</description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.2020.3010959</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Antenna feeds ; Antennas ; Bandwidths ; CAD ; Capacitor ; Circuits ; Computer aided design ; coplanar waveguide (CPW) ; Coplanar waveguides ; Coupled modes ; Couplers ; differential ; Dual polarization (waves) ; even mode ; full duplex ; isolation ; Mathematical analysis ; Microstrip ; Microstrip antennas ; odd mode ; Power dividers ; reflective termination ; Slot antennas ; slotline ; stepped slot antenna ; Transmission lines</subject><ispartof>IEEE transactions on antennas and propagation, 2021-11, Vol.69 (11), p.7119-7124</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-9e094c3e19bfee3acab51a4053d5cfdbf32565c9540a0967caac1edbe6ffacef3</citedby><cites>FETCH-LOGICAL-c333t-9e094c3e19bfee3acab51a4053d5cfdbf32565c9540a0967caac1edbe6ffacef3</cites><orcidid>0000-0002-1787-2230 ; 0000-0002-7776-3394 ; 0000-0002-5646-0271 ; 0000-0003-0471-9402 ; 0000-0002-6355-791X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9149817$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9149817$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Nguyen, Anh-Ngoc</creatorcontrib><creatorcontrib>Hoang Le, Viet</creatorcontrib><creatorcontrib>Nguyen-Trong, Nghia</creatorcontrib><creatorcontrib>Radfar, Mohsen</creatorcontrib><creatorcontrib>Ebrahimi, Amir</creatorcontrib><creatorcontrib>Phan, Khoa</creatorcontrib><creatorcontrib>Desai, Aniruddha</creatorcontrib><title>Dual-Polarized Slot Antenna for Full-Duplex Systems With High Isolation</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>A single-layered slot antenna system working at 5.8 GHz Industrial, Scientific and Medical (ISM) band is proposed for in-band full duplex (IBFD) operation applications without the use of a coupler. First, high isolation is achieved by strong separation of even- and odd-mode feeds. The microstrip-coupled coplanar waveguide (CPW) is used at Port 1 (TX port) to excite a stepped-slot antenna in the CPW odd mode. On the opposite side, a microstrip T-junction power divider is employed at Port 2 (RX port) to feed two offset-fed stepped-slot antennas in even mode. Second, isolation is further improved by 30 dB by using a lumped capacitor at the termination of the CPW. The measured isolation between the two ports is about 50 dB across the bandwidth. The measured −10 dB bandwidth of Port 1 is 0.49 GHz (8.5%), while that of Port 2 is 1.06 GHz (18.3%). The gains of TX and RX antennas are 5.4 and 5.8 dBi at 5.8 GHz. The proposed antenna can also be deployed as a dual-polarized antenna. Mathematical analysis and equivalent transmission line circuit models are provided to give physical insight into the working principals of the antenna with validation from ANSYS HFSS simulation.</description><subject>Antenna feeds</subject><subject>Antennas</subject><subject>Bandwidths</subject><subject>CAD</subject><subject>Capacitor</subject><subject>Circuits</subject><subject>Computer aided design</subject><subject>coplanar waveguide (CPW)</subject><subject>Coplanar waveguides</subject><subject>Coupled modes</subject><subject>Couplers</subject><subject>differential</subject><subject>Dual polarization (waves)</subject><subject>even mode</subject><subject>full duplex</subject><subject>isolation</subject><subject>Mathematical analysis</subject><subject>Microstrip</subject><subject>Microstrip antennas</subject><subject>odd mode</subject><subject>Power dividers</subject><subject>reflective termination</subject><subject>Slot antennas</subject><subject>slotline</subject><subject>stepped slot antenna</subject><subject>Transmission lines</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEtLAzEUhYMoWKt7wU3A9dQ8p5Nlae0DChZa0V3IZG7slOlMTTJg_fVOaXF1OXC-c-FD6JGSAaVEvWxGqwEjjAw46aJUV6hHpcwSxhi9Rj1CaJYoln7eorsQdl0UmRA9NJu0pkpWTWV8-QsFXldNxKM6Ql0b7BqPp21VJZP2UMEPXh9DhH3AH2Xc4nn5tcWL0JGxbOp7dONMFeDhcvvoffq6Gc-T5dtsMR4tE8s5j4kCooTlQFXuALixJpfUCCJ5Ia0rcseZTKVVUhBDVDq0xlgKRQ6pc8aC4330fN49-Oa7hRD1rml93b3UTGZpSjijomuRc8v6JgQPTh98uTf-qCnRJ12606VPuvRFV4c8nZESAP7rigqV0SH_A3qXZtE</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Nguyen, Anh-Ngoc</creator><creator>Hoang Le, Viet</creator><creator>Nguyen-Trong, Nghia</creator><creator>Radfar, Mohsen</creator><creator>Ebrahimi, Amir</creator><creator>Phan, Khoa</creator><creator>Desai, Aniruddha</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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First, high isolation is achieved by strong separation of even- and odd-mode feeds. The microstrip-coupled coplanar waveguide (CPW) is used at Port 1 (TX port) to excite a stepped-slot antenna in the CPW odd mode. On the opposite side, a microstrip T-junction power divider is employed at Port 2 (RX port) to feed two offset-fed stepped-slot antennas in even mode. Second, isolation is further improved by 30 dB by using a lumped capacitor at the termination of the CPW. The measured isolation between the two ports is about 50 dB across the bandwidth. The measured −10 dB bandwidth of Port 1 is 0.49 GHz (8.5%), while that of Port 2 is 1.06 GHz (18.3%). The gains of TX and RX antennas are 5.4 and 5.8 dBi at 5.8 GHz. The proposed antenna can also be deployed as a dual-polarized antenna. 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| subjects | Antenna feeds Antennas Bandwidths CAD Capacitor Circuits Computer aided design coplanar waveguide (CPW) Coplanar waveguides Coupled modes Couplers differential Dual polarization (waves) even mode full duplex isolation Mathematical analysis Microstrip Microstrip antennas odd mode Power dividers reflective termination Slot antennas slotline stepped slot antenna Transmission lines |
| title | Dual-Polarized Slot Antenna for Full-Duplex Systems With High Isolation |
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