A miniaturized printed monopole antenna loaded with hexagonal complementary split ring resonators for multiband operations

摘要

A miniaturized multiband printed monopole antenna is reported using hexagonalrncomplementary split ring resonator (HCSRR) slots. Antenna miniaturization andrnmultiband are accomplished by employing metamaterial inspired structure HCSRR.rnThe proposed antenna consists of three HCSRR slots, it makes the antenna to resonaternat 1.62 GHz, 2.4 GHz, 3.3 GHz, and 5.8 GHz frequency bands. The designedrnantenna structure has a small size of 20 3 20 3 1.6 mm3, which is fabricated on anrnFR-4 substrate with dielectric constant ðErÞ of 4.4. The pass band characteristics ofrnHCSRR are examined in detail for acquiring multiband abilities of the compactrnantenna, which is evaluated by use of the precise LC equivalent circuit design equations.rnThe metamaterial property of the HCSRR is also studied to validate thernresonance frequencies of the proposed antenna. Simulated and tested data are investigated.rnThe prototype antenna has adequate advantages, with a simple structure,rncompact size, multiband, and uniform radiation patterns.