Slot Antenna Tames Three Wireless Bands
Expanding wireless applications are creating unprecedented needs for equipment (such as antennas) at different frequency bands, as well as for different applications. Fortunately, a novel antenna was developed capable of handling three separate wireless bands within the same compact structure.
The antenna structure in question consists of two U-shaped slots in a rectangular patch and a Z-shaped strip at the ground plane. It can handle three distinct frequency bands centered at 2.45, 2.64, and 3.44 GHz for wireless communications applications. The two U-shaped slots support two of the frequency bands, while the Z-shaped strip is used for the other resonant frequency.
The antenna, which is printed on low-cost FR-4 substrate material with thickness of 0.8 mm and relative dielectric constant of 2.95, has overall dimensions of 34.5 × 40.0 mm. Simulation and measurement results show that the proposed antenna configuration can be applied to applications in wireless local area networks (WLANs), Fourth-Generation (4G) cellular equipment, and WiMAX devices with almost omnidirectional radiation patterns.
Full article by By Wang Maowen, Cao Jianzhong, and Peng Wenjuan, Microwaves and RF
About the Author
Roger Chu is the Marketing Coordinator at GSAmart, the leading GSA sales and marketing partner for technology companies.
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