Antenna technology selected for new LG phone
Rayspan (San Diego, CA) recently announced that its new penta-band metamaterial antenna has been selected by LG Electronics (Englewood Cliffs, NJ) for LG’s newest handheld mobile device, the LG BL40 “New LG Chocolate.” LG is the first handset manufacturer to implement the antenna, citing that Rayspan’s technology helped achieve “slim dimensions” (10.9 mm) and “unsurpassed radio frequency capabilities” for the LG BL40.
Metamaterial-structured antennas offer atypical electromagnetic propagation properties and can enable ultrasmall multiband cellular handsets, Wi-Fi routers, and modems with improved speed, range, and reliability. Metamaterials are composites engineered using conventional material, such as PCB and copper, to produce an electromagnetic behavior with better performance than conventional structures, such as bending electromagnetic waves the in opposite direction from where they would normally go.
The metamaterial antenna is printed directly onto the handset’s PCB using a CAD file, and measure less than 10 x 50 mm. A single antenna can support four to six cellular frequency bands with multiple feeds, which eliminates the need for splitter-diplexers. The antenna’s penta-band functionality for global cellular connectivity covers both low-band GSM/WCDMA/HSPA/LTE (700/800/900 MHz), with efficiencies of 50% to 75% and high-band DCS/PCS /WCDMA/HSPA/LTE (1700/1800/1900/2100 MHz) frequencies, with efficiencies of 70% to 75%.
These antennas offer high isolation and reduced interference with adjacent RF components, and allowing for integration of GPS, Bluetooth, Wi-Fi, and WiMAX into the same antenna array without coupling. The metamaterial’s ability to concentrate electromagnetic fields and currents near the antenna structures means that there is less radiation exposure and high performance regardless of the user’s hand and head intervention.
Rayspan is the first to use metamaterials to develop wireless air interface (antenna and RF front-end components) technology. For more information, visit http://www.rayspan.com/
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