Journal article 708 views
Full‐duplex radio with two receivers for self‐interference cancellation
Prafulla Deo,
Dariush Mirshekar‐Syahkal,
Amit Mehta 
IET Microwaves, Antennas & Propagation, Volume: 14, Issue: 9, Pages: 897 - 902
Swansea University Author:
Amit Mehta
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DOI (Published version): 10.1049/iet-map.2019.0539
Abstract
The design and implementation of a full-duplex radio system capable of real-time analogue self-interference cancellation at radio frequency (RF) and baseband stages are presented. The system consists of a dual-patch three-port orthogonally linear polarised antenna system (without a circulator/duplex...
| Published in: | IET Microwaves, Antennas & Propagation |
|---|---|
| ISSN: | 1751-8733 1751-8733 |
| Published: |
Institution of Engineering and Technology (IET)
2020
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa54244 |
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2020-06-03T20:05:05Z |
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<?xml version="1.0"?><rfc1807><datestamp>2022-11-02T12:35:20.9722596</datestamp><bib-version>v2</bib-version><id>54244</id><entry>2020-05-15</entry><title>Full‐duplex radio with two receivers for self‐interference cancellation</title><swanseaauthors><author><sid>8a1e5679707cf437cbfd17b72514b8a5</sid><ORCID>0000-0001-8073-2436</ORCID><firstname>Amit</firstname><surname>Mehta</surname><name>Amit Mehta</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2020-05-15</date><deptcode>EEEG</deptcode><abstract>The design and implementation of a full-duplex radio system capable of real-time analogue self-interference cancellation at radio frequency (RF) and baseband stages are presented. The system consists of a dual-patch three-port orthogonally linear polarised antenna system (without a circulator/duplexer), a homodyne dual receiver, and a differential amplifier at the baseband. The interference outputs from the two receivers are equalised using a fixed attenuator and when they are passed through the differential amplifier at the baseband they are effectively cancelled. For the system reported the antenna system provides 45.1 dB isolation between transmit and receive ports over 60 MHz bandwidth centred at the operating frequency of 3.2 GHz. Interference cancellation achieved by the differential amplifier at the baseband reduces the total self-interference to 81.5 dB minimum at −5.6 dBm transmit power. Using the proposed system, the recovery of two different types of baseband signals in real time is demonstrated while the surrounding is multipath enabled. Since the self-interference at baseband is removed by the differential amplifier instead of a complex digital signal processing unit, it makes the proposed system suitable for broad-band millimetre-wave full-duplex transceivers where the use of analogue/digital converter is not an option.</abstract><type>Journal Article</type><journal>IET Microwaves, Antennas &amp; Propagation</journal><volume>14</volume><journalNumber>9</journalNumber><paginationStart>897</paginationStart><paginationEnd>902</paginationEnd><publisher>Institution of Engineering and Technology (IET)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1751-8733</issnPrint><issnElectronic>1751-8733</issnElectronic><keywords/><publishedDay>1</publishedDay><publishedMonth>7</publishedMonth><publishedYear>2020</publishedYear><publishedDate>2020-07-01</publishedDate><doi>10.1049/iet-map.2019.0539</doi><url/><notes/><college>COLLEGE NANME</college><department>Electronic and Electrical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>EEEG</DepartmentCode><institution>Swansea University</institution><apcterm/><funders/><projectreference/><lastEdited>2022-11-02T12:35:20.9722596</lastEdited><Created>2020-05-15T15:40:06.4769857</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering</level></path><authors><author><firstname>Prafulla</firstname><surname>Deo</surname><order>1</order></author><author><firstname>Dariush</firstname><surname>Mirshekar‐Syahkal</surname><order>2</order></author><author><firstname>Amit</firstname><surname>Mehta</surname><orcid>0000-0001-8073-2436</orcid><order>3</order></author></authors><documents/><OutputDurs/></rfc1807> |
| spelling |
2022-11-02T12:35:20.9722596 v2 54244 2020-05-15 Full‐duplex radio with two receivers for self‐interference cancellation 8a1e5679707cf437cbfd17b72514b8a5 0000-0001-8073-2436 Amit Mehta Amit Mehta true false 2020-05-15 EEEG The design and implementation of a full-duplex radio system capable of real-time analogue self-interference cancellation at radio frequency (RF) and baseband stages are presented. The system consists of a dual-patch three-port orthogonally linear polarised antenna system (without a circulator/duplexer), a homodyne dual receiver, and a differential amplifier at the baseband. The interference outputs from the two receivers are equalised using a fixed attenuator and when they are passed through the differential amplifier at the baseband they are effectively cancelled. For the system reported the antenna system provides 45.1 dB isolation between transmit and receive ports over 60 MHz bandwidth centred at the operating frequency of 3.2 GHz. Interference cancellation achieved by the differential amplifier at the baseband reduces the total self-interference to 81.5 dB minimum at −5.6 dBm transmit power. Using the proposed system, the recovery of two different types of baseband signals in real time is demonstrated while the surrounding is multipath enabled. Since the self-interference at baseband is removed by the differential amplifier instead of a complex digital signal processing unit, it makes the proposed system suitable for broad-band millimetre-wave full-duplex transceivers where the use of analogue/digital converter is not an option. Journal Article IET Microwaves, Antennas & Propagation 14 9 897 902 Institution of Engineering and Technology (IET) 1751-8733 1751-8733 1 7 2020 2020-07-01 10.1049/iet-map.2019.0539 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2022-11-02T12:35:20.9722596 2020-05-15T15:40:06.4769857 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Prafulla Deo 1 Dariush Mirshekar‐Syahkal 2 Amit Mehta 0000-0001-8073-2436 3 |
| title |
Full‐duplex radio with two receivers for self‐interference cancellation |
| spellingShingle |
Full‐duplex radio with two receivers for self‐interference cancellation Amit Mehta |
| title_short |
Full‐duplex radio with two receivers for self‐interference cancellation |
| title_full |
Full‐duplex radio with two receivers for self‐interference cancellation |
| title_fullStr |
Full‐duplex radio with two receivers for self‐interference cancellation |
| title_full_unstemmed |
Full‐duplex radio with two receivers for self‐interference cancellation |
| title_sort |
Full‐duplex radio with two receivers for self‐interference cancellation |
| author_id_str_mv |
8a1e5679707cf437cbfd17b72514b8a5 |
| author_id_fullname_str_mv |
8a1e5679707cf437cbfd17b72514b8a5_***_Amit Mehta |
| author |
Amit Mehta |
| author2 |
Prafulla Deo Dariush Mirshekar‐Syahkal Amit Mehta |
| format |
Journal article |
| container_title |
IET Microwaves, Antennas & Propagation |
| container_volume |
14 |
| container_issue |
9 |
| container_start_page |
897 |
| publishDate |
2020 |
| institution |
Swansea University |
| issn |
1751-8733 1751-8733 |
| doi_str_mv |
10.1049/iet-map.2019.0539 |
| publisher |
Institution of Engineering and Technology (IET) |
| college_str |
Faculty of Science and Engineering |
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|
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facultyofscienceandengineering |
| hierarchy_top_title |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
| hierarchy_parent_title |
Faculty of Science and Engineering |
| department_str |
School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering |
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0 |
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| description |
The design and implementation of a full-duplex radio system capable of real-time analogue self-interference cancellation at radio frequency (RF) and baseband stages are presented. The system consists of a dual-patch three-port orthogonally linear polarised antenna system (without a circulator/duplexer), a homodyne dual receiver, and a differential amplifier at the baseband. The interference outputs from the two receivers are equalised using a fixed attenuator and when they are passed through the differential amplifier at the baseband they are effectively cancelled. For the system reported the antenna system provides 45.1 dB isolation between transmit and receive ports over 60 MHz bandwidth centred at the operating frequency of 3.2 GHz. Interference cancellation achieved by the differential amplifier at the baseband reduces the total self-interference to 81.5 dB minimum at −5.6 dBm transmit power. Using the proposed system, the recovery of two different types of baseband signals in real time is demonstrated while the surrounding is multipath enabled. Since the self-interference at baseband is removed by the differential amplifier instead of a complex digital signal processing unit, it makes the proposed system suitable for broad-band millimetre-wave full-duplex transceivers where the use of analogue/digital converter is not an option. |
| published_date |
2020-07-01T04:07:39Z |
| _version_ |
1763753548337643520 |
| score |
11.01628 |