Compact Clock-Shaped Broadband Circularly Polarized Antenna Based on Characteristic Mode Analysis
This paper presents the design process of a clock-shaped broadband circular polarized (CP) antenna based on Characteristic Mode Analysis (CMA). It is composed of a circular ring, two microstrip lines approximately perpendicular to each other, and 50-Ω improved coplanar waveguide (CPW). The two micro...
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| Veröffentlicht in: | IEEE access 2019, Vol.7, p.159952-159959 |
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| creator | Han, Min Dou, Wenbin |
| description | This paper presents the design process of a clock-shaped broadband circular polarized (CP) antenna based on Characteristic Mode Analysis (CMA). It is composed of a circular ring, two microstrip lines approximately perpendicular to each other, and 50-Ω improved coplanar waveguide (CPW). The two microstrip lines are introduced in the X and Y directions, respectively, to break the symmetry for CP operation. Different from the conventional method in which the operation is verified by the simulated surface current distribution, CMA provides physical insight into different modes of the antenna and reveals the mechanism of radiating CP wave. Mode currents and characteristic fields of the selected modes are studied for AR bandwidth enhancement. An improved double-sided printed CPW is introduced to excite the desired modes and achieve wideband impedance matching. To validate the proposed concept, a prototype with a compact size of 0.29λ L × 0.29λ L × 0.013λ L (λ L corresponding to the maximum operation frequency) is fabricated and measured. The measured -10 dB impedance bandwidth and 3 dB AR bandwidth are 84.6% from 2.38 GHz to 5.8 GHz and 43.4% from 2.4 GHz to 3.73 GHz, respectively. The overlapping operating bandwidth can cover the ISM band, the TD-LTE band, and the WiMAX band. Besides, the proposed antenna has a stable radiation pattern over the operating band. |
| doi_str_mv | 10.1109/ACCESS.2019.2951371 |
| format | Article |
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It is composed of a circular ring, two microstrip lines approximately perpendicular to each other, and 50-Ω improved coplanar waveguide (CPW). The two microstrip lines are introduced in the X and Y directions, respectively, to break the symmetry for CP operation. Different from the conventional method in which the operation is verified by the simulated surface current distribution, CMA provides physical insight into different modes of the antenna and reveals the mechanism of radiating CP wave. Mode currents and characteristic fields of the selected modes are studied for AR bandwidth enhancement. An improved double-sided printed CPW is introduced to excite the desired modes and achieve wideband impedance matching. To validate the proposed concept, a prototype with a compact size of 0.29λ L × 0.29λ L × 0.013λ L (λ L corresponding to the maximum operation frequency) is fabricated and measured. The measured -10 dB impedance bandwidth and 3 dB AR bandwidth are 84.6% from 2.38 GHz to 5.8 GHz and 43.4% from 2.4 GHz to 3.73 GHz, respectively. The overlapping operating bandwidth can cover the ISM band, the TD-LTE band, and the WiMAX band. Besides, the proposed antenna has a stable radiation pattern over the operating band.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2019.2951371</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Antenna radiation patterns ; Antennas ; Bandwidth ; Bandwidths ; Broadband ; Broadband antennas ; Broadband communication ; Characteristic mode analysis ; characteristic mode analysis (CMA) ; Circular polarization ; circular polarization (CP) ; co-planar waveguide (CPW) ; Coplanar waveguides ; Current distribution ; Impedance matching ; Microstrip ; Microstrip transmission lines ; Optimization ; Wireless communications</subject><ispartof>IEEE access, 2019, Vol.7, p.159952-159959</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-e8f3b47512dc115f3730d3d53062ca5ea21861d18ae87c592069a9c87ce7bf693</citedby><cites>FETCH-LOGICAL-c408t-e8f3b47512dc115f3730d3d53062ca5ea21861d18ae87c592069a9c87ce7bf693</cites><orcidid>0000-0003-1507-3985 ; 0000-0001-7850-9470</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8890786$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>315,781,785,865,2103,4025,27638,27928,27929,27930,54938</link.rule.ids></links><search><creatorcontrib>Han, Min</creatorcontrib><creatorcontrib>Dou, Wenbin</creatorcontrib><title>Compact Clock-Shaped Broadband Circularly Polarized Antenna Based on Characteristic Mode Analysis</title><title>IEEE access</title><addtitle>Access</addtitle><description>This paper presents the design process of a clock-shaped broadband circular polarized (CP) antenna based on Characteristic Mode Analysis (CMA). It is composed of a circular ring, two microstrip lines approximately perpendicular to each other, and 50-Ω improved coplanar waveguide (CPW). The two microstrip lines are introduced in the X and Y directions, respectively, to break the symmetry for CP operation. Different from the conventional method in which the operation is verified by the simulated surface current distribution, CMA provides physical insight into different modes of the antenna and reveals the mechanism of radiating CP wave. Mode currents and characteristic fields of the selected modes are studied for AR bandwidth enhancement. An improved double-sided printed CPW is introduced to excite the desired modes and achieve wideband impedance matching. To validate the proposed concept, a prototype with a compact size of 0.29λ L × 0.29λ L × 0.013λ L (λ L corresponding to the maximum operation frequency) is fabricated and measured. The measured -10 dB impedance bandwidth and 3 dB AR bandwidth are 84.6% from 2.38 GHz to 5.8 GHz and 43.4% from 2.4 GHz to 3.73 GHz, respectively. The overlapping operating bandwidth can cover the ISM band, the TD-LTE band, and the WiMAX band. Besides, the proposed antenna has a stable radiation pattern over the operating band.</description><subject>Antenna radiation patterns</subject><subject>Antennas</subject><subject>Bandwidth</subject><subject>Bandwidths</subject><subject>Broadband</subject><subject>Broadband antennas</subject><subject>Broadband communication</subject><subject>Characteristic mode analysis</subject><subject>characteristic mode analysis (CMA)</subject><subject>Circular polarization</subject><subject>circular polarization (CP)</subject><subject>co-planar waveguide (CPW)</subject><subject>Coplanar waveguides</subject><subject>Current distribution</subject><subject>Impedance matching</subject><subject>Microstrip</subject><subject>Microstrip transmission lines</subject><subject>Optimization</subject><subject>Wireless communications</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUctKxDAULaKgqF_gpuC6Y27SvJZj8TGgKIyuw50k1Y61GZPOYvx6oxUxm_vIeSScojgDMgMg-mLeNFfL5YwS0DOqOTAJe8URBaErxpnY_9cfFqcprUk-Kq-4PCqwCe8btGPZ9MG-VctX3HhXXsaAboWDK5su2m2Psd-VjyHX7jNfz4fRDwOWl5jyFIayecWYRXzs0tjZ8j44n0HY71KXToqDFvvkT3_rcfF8ffXU3FZ3DzeLZn5X2ZqosfKqZatacqDOAvCWSUYcc5wRQS1yjxSUAAcKvZKWa0qERm1z7-WqFZodF4tJ1wVcm03s3jHuTMDO_CxCfDEY8-t6bwAZwbpV4LSus50iytNaSEGlyiYka51PWpsYPrY-jWYdtjF_KBlacy4Y5TVkFJtQNoaUom__XIGY72jMFI35jsb8RpNZZxOr897_MZTSRCrBvgB9g4iF</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Han, Min</creator><creator>Dou, Wenbin</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>ESBDL</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0003-1507-3985</orcidid><orcidid>https://orcid.org/0000-0001-7850-9470</orcidid></search><sort><creationdate>2019</creationdate><title>Compact Clock-Shaped Broadband Circularly Polarized Antenna Based on Characteristic Mode Analysis</title><author>Han, Min ; Dou, Wenbin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-e8f3b47512dc115f3730d3d53062ca5ea21861d18ae87c592069a9c87ce7bf693</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Antenna radiation patterns</topic><topic>Antennas</topic><topic>Bandwidth</topic><topic>Bandwidths</topic><topic>Broadband</topic><topic>Broadband antennas</topic><topic>Broadband communication</topic><topic>Characteristic mode analysis</topic><topic>characteristic mode analysis (CMA)</topic><topic>Circular polarization</topic><topic>circular polarization (CP)</topic><topic>co-planar waveguide (CPW)</topic><topic>Coplanar waveguides</topic><topic>Current distribution</topic><topic>Impedance matching</topic><topic>Microstrip</topic><topic>Microstrip transmission lines</topic><topic>Optimization</topic><topic>Wireless communications</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Han, Min</creatorcontrib><creatorcontrib>Dou, Wenbin</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE Open Access Journals</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>IEEE access</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Han, Min</au><au>Dou, Wenbin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Compact Clock-Shaped Broadband Circularly Polarized Antenna Based on Characteristic Mode Analysis</atitle><jtitle>IEEE access</jtitle><stitle>Access</stitle><date>2019</date><risdate>2019</risdate><volume>7</volume><spage>159952</spage><epage>159959</epage><pages>159952-159959</pages><issn>2169-3536</issn><eissn>2169-3536</eissn><coden>IAECCG</coden><abstract>This paper presents the design process of a clock-shaped broadband circular polarized (CP) antenna based on Characteristic Mode Analysis (CMA). It is composed of a circular ring, two microstrip lines approximately perpendicular to each other, and 50-Ω improved coplanar waveguide (CPW). The two microstrip lines are introduced in the X and Y directions, respectively, to break the symmetry for CP operation. Different from the conventional method in which the operation is verified by the simulated surface current distribution, CMA provides physical insight into different modes of the antenna and reveals the mechanism of radiating CP wave. Mode currents and characteristic fields of the selected modes are studied for AR bandwidth enhancement. An improved double-sided printed CPW is introduced to excite the desired modes and achieve wideband impedance matching. To validate the proposed concept, a prototype with a compact size of 0.29λ L × 0.29λ L × 0.013λ L (λ L corresponding to the maximum operation frequency) is fabricated and measured. The measured -10 dB impedance bandwidth and 3 dB AR bandwidth are 84.6% from 2.38 GHz to 5.8 GHz and 43.4% from 2.4 GHz to 3.73 GHz, respectively. The overlapping operating bandwidth can cover the ISM band, the TD-LTE band, and the WiMAX band. Besides, the proposed antenna has a stable radiation pattern over the operating band.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/ACCESS.2019.2951371</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-1507-3985</orcidid><orcidid>https://orcid.org/0000-0001-7850-9470</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Antenna radiation patterns Antennas Bandwidth Bandwidths Broadband Broadband antennas Broadband communication Characteristic mode analysis characteristic mode analysis (CMA) Circular polarization circular polarization (CP) co-planar waveguide (CPW) Coplanar waveguides Current distribution Impedance matching Microstrip Microstrip transmission lines Optimization Wireless communications |
| title | Compact Clock-Shaped Broadband Circularly Polarized Antenna Based on Characteristic Mode Analysis |
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