{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T16:59:11Z","timestamp":1778345951790,"version":"3.51.4"},"reference-count":16,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2021,7,19]],"date-time":"2021-07-19T00:00:00Z","timestamp":1626652800000},"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>This paper proposes a novel broadband octagonal patch antenna with parasitic patches. The proposed patch antenna is constructed with four parasitic patches around a central radiating octagonal element. It is illustrated that this arrangement can be used to improve the antenna bandwidth and gain when compared with that of conventional antennas. The proposed patch antenna is very simple, low-profile, and economical. The typical analysis of the proposed antenna is analyzed by the S11(S-parameter), the radiation pattern, and the realized gain. It can achieve an impedance bandwidth of 1.44 GHz and a high gain of 8.56 dBi in the 8.5 GHz band. Furthermore, the proposed antenna shows that the directional pattern and HPBW measurement results of E and H-plane were 70\u00b0 and 74\u00b0 at 8.5 GHz, and 74\u00b0 and 83\u00b0 at 9 GHz, and 47\u00b0 and 42\u00b0 at 9.5 GHz, respectively.<\/jats:p>","DOI":"10.3390\/s21144908","type":"journal-article","created":{"date-parts":[[2021,7,19]],"date-time":"2021-07-19T10:07:37Z","timestamp":1626689257000},"page":"4908","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Analysis of Patch Antenna with Broadband Using Octagon Parasitic Patch"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2656-2955","authenticated-orcid":false,"given":"Sun-Woong","family":"Kim","sequence":"first","affiliation":[{"name":"Team for Education and Research of Future ICT & AI Convergence, Chosun University, Gwangju 61452, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ho-Gyun","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Chosun University, Gwangju 61452, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0664-7908","authenticated-orcid":false,"given":"Dong-You","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Chosun University, Gwangju 61452, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1310","DOI":"10.1049\/el:19950950","article-title":"Single-layer single-patch wideband microstrip antenna","volume":"31","author":"Huynh","year":"1995","journal-title":"Electron. 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Lett."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"42497","DOI":"10.1109\/ACCESS.2018.2860594","article-title":"Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application With Mutual Coupling Reduction","volume":"6","author":"Xu","year":"2018","journal-title":"IEEE Access"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"11624","DOI":"10.1109\/ACCESS.2018.2794962","article-title":"Microstrip Patch Antennas With Multiple Parasitic Patches and Shorting Vias for Bandwidth Enhancement","volume":"6","author":"Xu","year":"2018","journal-title":"IEEE Access"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"3275","DOI":"10.1002\/mop.32445","article-title":"A compact circularly polarized isosceles triangular microstrip patch antenna with parasitic elements for multiband application","volume":"62","author":"Shaw","year":"2020","journal-title":"Microw. Opt. Technol. Lett."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"15","DOI":"10.2528\/PIERC11072803","article-title":"CRLH ZOR antenna of a circular microstrip patch capacitively coupled to a circular shorted ring","volume":"25","author":"Yoo","year":"2012","journal-title":"Prog. Electromagn. Res. C"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"132041","DOI":"10.1109\/ACCESS.2019.2940279","article-title":"A Single-Layer Wideband Differential-Fed Microstrip Patch Antenna With Complementary Split-Ring Resonators Loaded","volume":"7","author":"Feng","year":"2019","journal-title":"IEEE Access"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1469","DOI":"10.1109\/LAWP.2018.2849678","article-title":"Dual-Band and Polarization-Flexible CRLH Substrate-Integrated Waveguide Resonant Antenna","volume":"17","author":"Lee","year":"2018","journal-title":"IEEE Antennas Wirel. Propag. Lett."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/14\/4908\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:31:50Z","timestamp":1760164310000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/14\/4908"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,7,19]]},"references-count":16,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2021,7]]}},"alternative-id":["s21144908"],"URL":"https:\/\/doi.org\/10.3390\/s21144908","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,7,19]]}}}