{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T15:57:19Z","timestamp":1776182239972,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2020,11,11]],"date-time":"2020-11-11T00:00:00Z","timestamp":1605052800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A broadband differential-fed dual-polarized hollow cylindrical dielectric resonator antenna (DRA) is proposed in this article. It makes use of the HEM111, HEM113, and HEM115 modes of the cylindrical hollow DRA. The proposed DRA is simply fed by two pairs of conducting strips and each pair of strips is provided with the out-of-phase signals. After introducing four disconnected air holes into the DRA, a broadband characteristic is achieved, with little effect on the antenna gain of its higher-order modes. To verify this idea, frosted K9-glass is applied to fabricate the hollow cylindrical DRA. The differential S-parameters, radiation patterns, and antenna gain of the DRA are studied. It is found that the proposed differential-fed dual-polarized DRA is able to provide a broad differential impedance bandwidth of ~68% and a high differential-port isolation better than ~46 dB. Moreover, symmetrical broadside radiation patterns are observed across the whole operating band. The proposed DRA covers the frequency bands including the 5G-n77 (3.4\u20134.2 GHz), 5G-n79 (4.4\u20135.0 GHz), WLAN-5.2 GHz (5.15\u20135.35 GHz), and WLAN-5.8 GHz (5.725\u20135.825 GHz), which can be used for 5G communications.<\/jats:p>","DOI":"10.3390\/s20226448","type":"journal-article","created":{"date-parts":[[2020,11,11]],"date-time":"2020-11-11T19:08:28Z","timestamp":1605121708000},"page":"6448","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["A Broadband Differential-Fed Dual-Polarized Hollow Cylindrical Dielectric Resonator Antenna for 5G Communications"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3284-8343","authenticated-orcid":false,"given":"Xiaosheng","family":"Fang","sequence":"first","affiliation":[{"name":"Department of Electronic and Information Engineering, Shantou University, Shantou 515000, China"},{"name":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, Department of Electronic and Information Engineering, Shantou University, Shantou 515000, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3472-220X","authenticated-orcid":false,"given":"Kangping","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Electronic and Information Engineering, Shantou University, Shantou 515000, China"},{"name":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, Department of Electronic and Information Engineering, Shantou University, Shantou 515000, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8167-7141","authenticated-orcid":false,"given":"Yuxiang","family":"Sun","sequence":"additional","affiliation":[{"name":"College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518000, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"406","DOI":"10.1109\/TAP.1983.1143080","article-title":"The resonant cylindrical dielectric cavity antenna","volume":"31","author":"Long","year":"1983","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_2","unstructured":"Luk, K.M., and Leung, K.W. (2003). Dielectric Resonator Antennas, Research Studies Press."},{"key":"ref_3","unstructured":"Petosa, A. (2007). Dielectric Resonator Antenna Handbook, Artech House."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"544","DOI":"10.1109\/LAWP.2011.2154355","article-title":"Compact CPW-Fed dielectric resonator antenna with dual polarization","volume":"10","author":"Gao","year":"2011","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1049\/ip-map:20050134","article-title":"Hook- and 3-D J-shaped probe excited dielectric resonator antenna for dual polarization applications","volume":"153","author":"Chair","year":"2006","journal-title":"IEEE Proc.-Microw. Antennas Propag."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"384","DOI":"10.1109\/LAWP.2013.2251993","article-title":"Dual-Band and wideband dual-polarized cylindrical dielectric resonator antennas","volume":"12","author":"Sun","year":"2013","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"719","DOI":"10.1049\/el.2009.1014","article-title":"Dual-polarized dielectric resonator antenna with high isolation and low cross-polarization","volume":"45","author":"Tang","year":"2009","journal-title":"IET Electron. Lett."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1068","DOI":"10.1109\/LAWP.2020.2988516","article-title":"A mmW broadband dual-polarized dielectric resonator antenna based on hybrid modes","volume":"19","author":"Kowalewski","year":"2020","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1109\/LAWP.2012.2199277","article-title":"Omnidirectional cylindrical dielectric resonator antenna with dual polarization","volume":"11","author":"Zou","year":"2012","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"742","DOI":"10.1109\/LAWP.2011.2162479","article-title":"A cross-shaped dielectric resonator antenna for multifunction and polarization diversity applications","volume":"10","author":"Zou","year":"2011","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Lin, T., Chiu, T., Chang, Y., Hsieh, C., and Chang, D. (2016, January 4\u20136). Design of 60-GHz dual-polarization dielectric resonator antenna. Proceedings of the 2016 46th European Microwave Conference (EuMC), London, UK.","DOI":"10.1109\/EuMC.2016.7824581"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Ali, A., Yun, J., Ng, H.J., Kissinger, D., Giannini, F., and Colantonio, P. (2019, January 1\u20133). Sub-THz on-chip dielectric resonator antenna with wideband performance. Proceedings of the 2019 14th European Microwave Integrated Circuits Conference (EuMIC), Paris, France.","DOI":"10.23919\/EuMIC.2019.8909651"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"619","DOI":"10.1109\/TTHZ.2015.2424682","article-title":"340 GHz on-chip 3-D Antenna with 10 dBi gain and 80% Radiation Efficiency","volume":"5","author":"Deng","year":"2015","journal-title":"IEEE Trans. Terahertz Sci. Technol."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Wang, L., and Sun, W.Z. (2015, January 14\u201316). A 60-GHZ differential-fed circularly polarized on-chip antenna based on 0.18-\u03bcm COMS technology with AMC structure. Proceedings of the IET International Radar Conference 2015, Hangzhou, China.","DOI":"10.1049\/cp.2015.1001"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"2780","DOI":"10.1109\/TAP.2008.927577","article-title":"Integration of Yagi antenna in LTCC package for differential 60-GHz radio","volume":"56","author":"Sun","year":"2008","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"353","DOI":"10.1109\/TAP.2007.915463","article-title":"On the differentially fed rectangular dielectric resonator antenna","volume":"56","author":"Li","year":"2008","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Lee, E., and Ong, M.L.C. (2009, January 7\u201310). Aperture coupled differentially fed DRAs. Proceedings of the Asia Pacific Microwave Conference, Singapore.","DOI":"10.1109\/APMC.2009.5385370"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1736","DOI":"10.1109\/LAWP.2018.2864972","article-title":"Microstrip-fed differential dielectric resonator antenna and array","volume":"17","author":"Guo","year":"2018","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"662","DOI":"10.1109\/LAWP.2010.2057402","article-title":"Compact differential rectangular dielectric resonator antenna","volume":"9","author":"Fang","year":"2010","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"884","DOI":"10.1109\/LAWP.2011.2165929","article-title":"Frequency-tunable differentially fed rectangular dielectric resonator antennas","volume":"10","author":"Hao","year":"2011","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1109\/TAP.2017.2767819","article-title":"Dualfunction dielectric resonator as antenna and phase-delay-line load: Designs of compact circularly polarized\/differential antennas","volume":"66","author":"Sun","year":"2018","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1109\/LAWP.2019.2903143","article-title":"Differentially coplanar-fed filtering dielectric resonator antenna for millimeter-wave applications","volume":"18","author":"Tong","year":"2019","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_23","first-page":"1804","article-title":"Differentially fed wideband rectangular DRA with high gain using short horn","volume":"16","author":"Gupta","year":"2017","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Sun, S.J., Jiao, Y.C., Zhang, X., and Gao, Y. (2019, January 19\u201322). Design of a novel differential-fed wide-beam dielectric resonator antenna. Proceedings of the 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT), Guangzhou, China.","DOI":"10.1109\/ICMMT45702.2019.8992065"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"2498","DOI":"10.1109\/LAWP.2019.2941228","article-title":"Differentially inserted-fed compact dual-band circularly polarized dielectric resonator antenna","volume":"18","author":"Tong","year":"2019","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1605","DOI":"10.1109\/LAWP.2020.3011759","article-title":"Design of the single-\/dual-port wideband differential dielectric resonator antenna using higher-order mode","volume":"19","author":"Fang","year":"2020","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"855","DOI":"10.1109\/TAP.2016.2630661","article-title":"Differential dual-band dual-polarized dielectric resonator antenna","volume":"65","author":"Tang","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"4298","DOI":"10.1109\/TAP.2018.2836449","article-title":"Differential dual-polarized filtering dielectric resonator antenna","volume":"66","author":"Tang","year":"2018","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"502","DOI":"10.1109\/LAWP.2020.2964569","article-title":"Differential-fed dual-polarized dielectric patch antenna with gain enhancement based on higher order modes","volume":"19","author":"Wang","year":"2020","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Sun, R.Y., and Han, R.C. (2015, January 1\u20133). Design of dual-polarized differential feed dielectric resonator antenna. Proceedings of the 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Suzhou, China.","DOI":"10.1109\/IMWS-AMP.2015.7325014"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1109\/TMAG.1984.1063008","article-title":"Differentially fed dielectric resonators","volume":"20","author":"Chen","year":"2020","journal-title":"IEEE Microw. Mag."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1109\/LAWP.2009.2016990","article-title":"Conformal strip-fed shaped cylindrical dielectric resonator: Improved design of a wideband wireless antenna","volume":"8","author":"Chu","year":"2009","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1109\/LAWP.2005.860198","article-title":"Broadband L-shaped dielectric resonator antenna","volume":"4","author":"Denidni","year":"2005","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1109\/LAWP.2008.922051","article-title":"H-shaped dielectric resonator antenna for wideband applications","volume":"7","author":"Liang","year":"2008","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1109\/TAP.2008.2009783","article-title":"Wideband L-shaped dielectric resonator antenna with a conformal inverted-trapezoidal patch feed","volume":"57","author":"Liang","year":"2009","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1049\/el:20063987","article-title":"Experimental investigation for wideband perforated dielectric resonator antenna","volume":"42","author":"Chair","year":"2006","journal-title":"IET Electron. Lett."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1280","DOI":"10.1109\/TAP.2009.2015861","article-title":"Theory and experiment of the wideband two-layer hemispherical dielectric resonator antenna","volume":"57","author":"Leung","year":"2009","journal-title":"IEEE Trans. Antennas Propagat."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"2055","DOI":"10.1109\/TAP.2018.2800764","article-title":"A wideband differentially fed dual-polarized stacked patch antenna with tuned slot excitations","volume":"66","author":"Tang","year":"2018","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1109\/LAWP.2018.2837116","article-title":"A differentially driven dual-polarized high-gain stacked patch antenna","volume":"17","author":"Yang","year":"2018","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"23672","DOI":"10.1109\/ACCESS.2017.2751498","article-title":"A wideband differential-fed dual-polarized microstrip antenna under radiation of dual improved odd-order resonant modes","volume":"5","author":"Liu","year":"2017","journal-title":"IEEE Access"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"2662","DOI":"10.1109\/TAP.2012.2194682","article-title":"Linear-\/circular-polarization designs of dual-\/wide-band cylindrical dielectric resonator antennas","volume":"60","author":"Fang","year":"2012","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"161621","DOI":"10.1109\/ACCESS.2019.2951819","article-title":"Design of the wide dual-band rectangular souvenir dielectric resonator antenna","volume":"7","author":"Fang","year":"2019","journal-title":"IEEE Access"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"4246","DOI":"10.1109\/TAP.2013.2262072","article-title":"Omnidirectional circularly polarized dielectric resonator antenna with top-loaded alford loop for pattern diversity design","volume":"61","author":"Li","year":"2013","journal-title":"IEEE Trans. Antennas Propag."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/22\/6448\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:32:14Z","timestamp":1760178734000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/22\/6448"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,11,11]]},"references-count":43,"journal-issue":{"issue":"22","published-online":{"date-parts":[[2020,11]]}},"alternative-id":["s20226448"],"URL":"https:\/\/doi.org\/10.3390\/s20226448","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,11,11]]}}}