{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T02:28:29Z","timestamp":1747189709456,"version":"3.40.5"},"reference-count":23,"publisher":"World Scientific Pub Co Pte Ltd","issue":"05","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:p> A compact frequency band reconfigurable dual-mode antenna utilizing both Koch fractal geometry and circular complementary split ring resonators (CSRRs) is presented in this paper. The proposed antenna can be electrically switched into both dual- and single-band resonance modes. A Koch curve derivative novel fractal curve is used to design the patch boundary of the antenna. Two optimized circular CSRRs are loaded inside the antenna geometry to achieve double-band resonance. The antenna operates at both 5.1[Formula: see text]GHz (upper WLAN band) and 9.6[Formula: see text]GHz ([Formula: see text]-band) in dual resonance mode and resonates only at 8[Formula: see text]GHz ([Formula: see text]-band) in single resonance mode. A properly biased RF-range PIN diode placed at the slotted ground plane reconfigures the antenna in two operating modes by switching into its ON\u2013OFF states. The antenna is fabricated on cost-efficient epoxy (FR-4) substrate consuming the maximum dimension of [Formula: see text] which is much more compact than the conventional rectangular patch antennas designed for similar bands. Stable radiation characteristics with reduced cross-polarization are achieved at all the resonant bands of the antenna. A prototype of the proposed antenna is fabricated and measured. The simulated results are in good agreement with the measured ones. <\/jats:p>","DOI":"10.1142\/s0218126621500754","type":"journal-article","created":{"date-parts":[[2020,7,10]],"date-time":"2020-07-10T11:30:43Z","timestamp":1594380643000},"page":"2150075","source":"Crossref","is-referenced-by-count":2,"title":["Compact Circular CSRR Loaded Koch Fractal Inspired Frequency Band Reconfigurable Antenna"],"prefix":"10.1142","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6657-0036","authenticated-orcid":false,"given":"Puspendu Bikash","family":"Saha","sequence":"first","affiliation":[{"name":"National Institute of Technology Agartala, Barjala, Jirania 799046, Tripura, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dibyendu","family":"Ghoshal","sequence":"additional","affiliation":[{"name":"National Institute of Technology Agartala, Barjala, Jirania 799046, Tripura, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rajib Kumar","family":"Dash","sequence":"additional","affiliation":[{"name":"National Institute of Technology Agartala, Barjala, Jirania 799046, Tripura, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2020,9,10]]},"reference":[{"key":"S0218126621500754BIB001","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeue.2017.11.033"},{"key":"S0218126621500754BIB002","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-017-3942-8"},{"key":"S0218126621500754BIB003","doi-asserted-by":"publisher","DOI":"10.1049\/iet-map.2018.5602"},{"key":"S0218126621500754BIB004","doi-asserted-by":"publisher","DOI":"10.1142\/S0219799504000295"},{"key":"S0218126621500754BIB005","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2017.2788465"},{"key":"S0218126621500754BIB006","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2015.2476363"},{"key":"S0218126621500754BIB007","doi-asserted-by":"publisher","DOI":"10.1002\/mop.30018"},{"key":"S0218126621500754BIB008","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeue.2018.07.017"},{"key":"S0218126621500754BIB009","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2007.895293"},{"key":"S0218126621500754BIB010","doi-asserted-by":"publisher","DOI":"10.1017\/S1759078715001324"},{"key":"S0218126621500754BIB011","doi-asserted-by":"publisher","DOI":"10.1109\/APMC.2013.6695169"},{"key":"S0218126621500754BIB012","doi-asserted-by":"publisher","DOI":"10.1142\/S0218126618502134"},{"journal-title":"Microsyst. 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