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CRLH unit cell loaded triple band compact monopole antenna for WLAN/WiMAX applications
Author(s) -
Nandi Sourav,
Mohan Akhilesh
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30377
Subject(s) - wimax , omnidirectional antenna , monopole antenna , electrical engineering , microwave , antenna (radio) , physics , antenna efficiency , optoelectronics , engineering , electronic engineering , telecommunications , wireless
A miniaturized triple band monopole antenna, loaded with complementary right/left handed (CRLH) unit cell, is proposed in this letter. Due to the loading of CRLH unit cell, two extra resonant frequencies are obtained below the conventional rectangular loop monopole resonant frequency of the antenna and thus the electrical size of the antenna is reduced in a great extent. The antenna operates in the range of 2.39–2.6 GHz, 3.38–3.68 GHz, and 5.12–6.51 GHz. Moreover, the antenna offers omnidirectional radiation pattern and moderate gain, which makes the proposed design well suited for practical wireless LAN (WLAN‐2.4/5.2/5.8 GHz) and worldwide interoperability for microwave access (WiMAX‐2.5/3.5/5.5 GHz) applications. The physical size of the antenna is 20 mm × 21 mm × 1.57 mm, which is highly compact compared with the earlier published metamaterial inspired tri‐band antennas. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:686–691, 2017