A Compact Tri-Band Antenna Based on Inverted-L Stubs for Smart Devices
Source abstract
Abstract
We designed and constructed a novel, compact tri-band monopole antenna for intelligent devices. Multiband behavior was achieved by placing inverted-L shaped stubs of various lengths in a triangular monopole antenna fed by a coplanar waveguide. The resonance frequency of each band can be controlled by varying the length of the corresponding stub. Three bands, at 2.4 (2.37–2.51), 3.5 (3.34–3.71), and 5.5 (4.6–6.4) GHz, were easily obtained using three stubs of different lengths. For miniaturization, a portion of the longest stub (at 2.4 GHz) was printed on the opposite side of the substrate, and connected to the main stub via a shorting pin. To validate the concept, the antenna was fabricated on a low-cost 1.6-mm-thick FR-4 substrate with dimensions of 20 × 15 × 1.6 mm3. The antenna exhibited a moderate average gain of 2.9 dBi with an omnidirectional radiations over the bandwidths required for RFID, Bluetooth, ISM, WiMAX, and WLAN-band applications. These features make the antenna suitable for compact smart devices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Antenna Design and Analysis · Microwave Engineering and Waveguides · Energy Harvesting in Wireless Networks
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
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