{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T06:22:01Z","timestamp":1769149321163,"version":"3.49.0"},"reference-count":136,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T00:00:00Z","timestamp":1623715200000},"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>Recently, it has been a feasible approach to build an antenna, in view of the potential advantages they offer. One of the recent trends in dielectric resonator antenna research is the use of compound and hybrid structures. Several considerable investigations have been already underway showing quite interesting and significant features in bandwidth, gain, and generation of circular polarization. A critical review on a journey of circularly polarized hybrid dielectric resonator antennas is presented in this article. A general discussion of circular polarization and DR antennas are provided at the forefront. Evolution, significant challenges, and future aspects with new ideas in designing hybrid dielectric resonator antennas are indicated at the end of the review. State-of-the-art advances and associated design challenges of circularly polarized hybrid DR antennas and related empirical formulas used to find resonance frequency of different hybrid modes produced are discussed in this paper.<\/jats:p>","DOI":"10.3390\/s21124100","type":"journal-article","created":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T21:24:29Z","timestamp":1623792269000},"page":"4100","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Circularly Polarized Hybrid Dielectric Resonator Antennas: A Brief Review and Perspective Analysis"],"prefix":"10.3390","volume":"21","author":[{"given":"Rajasekhar","family":"Nalanagula","sequence":"first","affiliation":[{"name":"Department of Electrical and Electronics Engineering, BITS-Pilani, Hyderabad 500078, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0033-716X","authenticated-orcid":false,"given":"Naresh K.","family":"Darimireddy","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Computer Science and Engineering, University of Quebec, Rimouski, QC G5L 3A1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4278-0060","authenticated-orcid":false,"given":"Runa","family":"Kumari","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronics Engineering, BITS-Pilani, Hyderabad 500078, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chan-Wang","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Computer Science and Engineering, University of Quebec, Rimouski, QC G5L 3A1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. Ramana","family":"Reddy","sequence":"additional","affiliation":[{"name":"Department of Electronics and Communication Engineering, JNTUA College of Engineering Pulivendula, Andhra Pradesh 516390, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,15]]},"reference":[{"key":"ref_1","unstructured":"Balanis, C.A. (1982). Antenna Theory: Analysis and Design, Wiley."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1109\/TAP.1985.1143550","article-title":"Antennas since Hertz and Marconi","volume":"33","author":"Kraus","year":"1985","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_3","unstructured":"Deschamps, G.A. (1953, January 18\u201322). Microstrip Microwave Antennas. Proceedings of the 3rd Symposium on the USAF Antenna Research and Development Program, University of Illinois, Monticello, IL, USA."},{"key":"ref_4","unstructured":"Munson, R.E. (1973). 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