Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation
This paper presents a novel, tunable, frequency-division duplexing radio frequency (RF) front end that combines passive and active self-interference (SI) cancellation. An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employe...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2018-12, Vol.66 (12), p.5812-5824 |
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| container_title | IEEE transactions on microwave theory and techniques |
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| creator | Laughlin, Leo Zhang, Chunqing Beach, Mark A. Morris, Kevin A. Haine, John L. Khan, Muhammad Kalimuddin McCullagh, Michael |
| description | This paper presents a novel, tunable, frequency-division duplexing radio frequency (RF) front end that combines passive and active self-interference (SI) cancellation. An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employed to suppress SI in the transmit (Tx)-band. Subsystem specifications are developed, and a system-level analysis of noise and SI powers in this novel architecture is provided, thereby illustrating its operation. A proof-of-concept demonstrator, built from a software-defined radio and discrete RF components, has been characterized across a range of duplex configurations in the 700-950-MHz range and also at 1900 (Long-Term Evolution (LTE) band 3) and 2600 MHz (LTE band 7). The prototype achieves an impressive 6.0-7.4-dB noise figure in the presence of a +27-dBm LTE uplink Tx blocker for duplex separations of 47.5 MHz and above. The duplexer has also been tested against reference sensitivity test cases defined in the 3GPP LTE specification, demonstrating specification compliant sensitivity in LTE bands 28 (700 MHz), 3, and 7. |
| doi_str_mv | 10.1109/TMTT.2018.2851990 |
| format | Article |
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An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employed to suppress SI in the transmit (Tx)-band. Subsystem specifications are developed, and a system-level analysis of noise and SI powers in this novel architecture is provided, thereby illustrating its operation. A proof-of-concept demonstrator, built from a software-defined radio and discrete RF components, has been characterized across a range of duplex configurations in the 700-950-MHz range and also at 1900 (Long-Term Evolution (LTE) band 3) and 2600 MHz (LTE band 7). The prototype achieves an impressive 6.0-7.4-dB noise figure in the presence of a +27-dBm LTE uplink Tx blocker for duplex separations of 47.5 MHz and above. The duplexer has also been tested against reference sensitivity test cases defined in the 3GPP LTE specification, demonstrating specification compliant sensitivity in LTE bands 28 (700 MHz), 3, and 7.</description><identifier>ISSN: 0018-9480</identifier><identifier>EISSN: 1557-9670</identifier><identifier>DOI: 10.1109/TMTT.2018.2851990</identifier><identifier>CODEN: IETMAB</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>5G mobile communication ; Duplexer ; Duplexers ; electrical balance ; frequency-division duplex (FDD) ; in-band full duplex (IBFD) ; Interference cancellation ; Long Term Evolution ; Mobile communication systems ; Noise ; Noise levels ; Noise measurement ; Radio frequency ; self-interference cancellation (SIC) ; Sensitivity ; Software radio ; Specifications ; Subsystems ; Surface acoustic waves ; Tunable circuits and devices ; tunable filters ; Wireless communications</subject><ispartof>IEEE transactions on microwave theory and techniques, 2018-12, Vol.66 (12), p.5812-5824</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c336t-d7a2925a931e7ef2dc13953ef3cc683d7d265f52d69ef98468cd7ad07d72b7fd3</citedby><cites>FETCH-LOGICAL-c336t-d7a2925a931e7ef2dc13953ef3cc683d7d265f52d69ef98468cd7ad07d72b7fd3</cites><orcidid>0000-0002-6798-7001 ; 0000-0002-3187-6166 ; 0000-0002-5164-7221</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8418350$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8418350$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Laughlin, Leo</creatorcontrib><creatorcontrib>Zhang, Chunqing</creatorcontrib><creatorcontrib>Beach, Mark A.</creatorcontrib><creatorcontrib>Morris, Kevin A.</creatorcontrib><creatorcontrib>Haine, John L.</creatorcontrib><creatorcontrib>Khan, Muhammad Kalimuddin</creatorcontrib><creatorcontrib>McCullagh, Michael</creatorcontrib><title>Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation</title><title>IEEE transactions on microwave theory and techniques</title><addtitle>TMTT</addtitle><description>This paper presents a novel, tunable, frequency-division duplexing radio frequency (RF) front end that combines passive and active self-interference (SI) cancellation. An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employed to suppress SI in the transmit (Tx)-band. Subsystem specifications are developed, and a system-level analysis of noise and SI powers in this novel architecture is provided, thereby illustrating its operation. A proof-of-concept demonstrator, built from a software-defined radio and discrete RF components, has been characterized across a range of duplex configurations in the 700-950-MHz range and also at 1900 (Long-Term Evolution (LTE) band 3) and 2600 MHz (LTE band 7). The prototype achieves an impressive 6.0-7.4-dB noise figure in the presence of a +27-dBm LTE uplink Tx blocker for duplex separations of 47.5 MHz and above. The duplexer has also been tested against reference sensitivity test cases defined in the 3GPP LTE specification, demonstrating specification compliant sensitivity in LTE bands 28 (700 MHz), 3, and 7.</description><subject>5G mobile communication</subject><subject>Duplexer</subject><subject>Duplexers</subject><subject>electrical balance</subject><subject>frequency-division duplex (FDD)</subject><subject>in-band full duplex (IBFD)</subject><subject>Interference cancellation</subject><subject>Long Term Evolution</subject><subject>Mobile communication systems</subject><subject>Noise</subject><subject>Noise levels</subject><subject>Noise measurement</subject><subject>Radio frequency</subject><subject>self-interference cancellation (SIC)</subject><subject>Sensitivity</subject><subject>Software radio</subject><subject>Specifications</subject><subject>Subsystems</subject><subject>Surface acoustic waves</subject><subject>Tunable circuits and devices</subject><subject>tunable filters</subject><subject>Wireless communications</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kFtLAzEQhYMoWKs_QHwJ-Lw1l80meay9qFARZPsc0iQrKWu2JrvF_ntTWnwaZs45M8wHwD1GE4yRfKrf63pCEBYTIhiWEl2AEWaMF7Li6BKMUJYKWQp0DW5S2ua2ZEiMgKqHoDetg8vofgYXzKGY-71PvgtwPuxa9ws_l1nsQg8XwcJ18uELLlpn-uiNbuGzbnUwDuosTk3v9w7OjoO21X1ecguuGt0md3euY7BeLurZa7H6eHmbTVeFobTqC8s1kYRpSbHjriHWYCoZdQ01phLUcksq1jBiK-kaKcpKmByxiFtONryxdAweT3t3sct_pF5tuyGGfFIRzLhEkhCRXfjkMrFLKbpG7aL_1vGgMFJHjurIUR05qjPHnHk4Zbxz7t8vSiwoQ_QPNr1u3w</recordid><startdate>20181201</startdate><enddate>20181201</enddate><creator>Laughlin, Leo</creator><creator>Zhang, Chunqing</creator><creator>Beach, Mark A.</creator><creator>Morris, Kevin A.</creator><creator>Haine, John L.</creator><creator>Khan, Muhammad Kalimuddin</creator><creator>McCullagh, Michael</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employed to suppress SI in the transmit (Tx)-band. Subsystem specifications are developed, and a system-level analysis of noise and SI powers in this novel architecture is provided, thereby illustrating its operation. A proof-of-concept demonstrator, built from a software-defined radio and discrete RF components, has been characterized across a range of duplex configurations in the 700-950-MHz range and also at 1900 (Long-Term Evolution (LTE) band 3) and 2600 MHz (LTE band 7). The prototype achieves an impressive 6.0-7.4-dB noise figure in the presence of a +27-dBm LTE uplink Tx blocker for duplex separations of 47.5 MHz and above. 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| subjects | 5G mobile communication Duplexer Duplexers electrical balance frequency-division duplex (FDD) in-band full duplex (IBFD) Interference cancellation Long Term Evolution Mobile communication systems Noise Noise levels Noise measurement Radio frequency self-interference cancellation (SIC) Sensitivity Software radio Specifications Subsystems Surface acoustic waves Tunable circuits and devices tunable filters Wireless communications |
| title | Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation |
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