Abstract
The design and performance characteristics of metamaterial-inspired electrically small, single, dual and triple band antennas at the GSM (1.93-1.99 GHz), ISM (2.43-2.4835 GHz), and WiMAX (3.3-3.6 GHz) frequencies are reported. These antennas are based on a coaxially fed printed dipole integrated in a planar configuration with capacitively loaded loops (CLLs) as its near-field resonant parasitic radiators. In the proposed topology, the number of operating frequencies is determined by the number of CLLs. These antennas are geometrically simple, operate as magnetic dipoles (directivities ∼1.6-2.0 dB), and have high (≥80%) radiation efficiencies at all of their operating frequencies.
Original language | English (US) |
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Pages (from-to) | 83-87 |
Number of pages | 5 |
Journal | Microwave and Optical Technology Letters |
Volume | 56 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2014 |
Externally published | Yes |
Keywords
- electrically small antennas
- metamaterials
- multiband antennas
- radiation efficiency
- radiation patterns; ISM: Instruments, Scientific, and Measurements
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering