Metamaterial-Based Microstrip Antenna Using Slot-Embedded Ground Plane for Bandwidth Improvements

Seongmin PYO  Min-Jae LEE  Young-Sik KIM  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.10   pp.2784-2786
Publication Date: 2010/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2784
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
metamaterial,  microstrip antenna,  broad bandwidth,  slot-embedded ground plane,  

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In this letter, a new design of a metamaterial-based microstrip antenna is presented using triangular slots embedded on the ground plane to enhance the impedance bandwidth. To improve the impedance bandwidth of the proposed antenna, two resonant mode frequencies are closely allocated using the slotted ground without changing the radiator element. The impedance bandwidth of VSWR < 2.5 is measured at 2.43 GHz (37.6%) centered on 6.46 GHz, from 5.24 GHz to 7.67 GHz in good agreements with the simulated results.