Taking the demand for small size, easy fabrication and low cost into account in the development of low-power radio devices for short-range 2.4GHz applications, a quarter wavelength monopole antenna implemented on the same printed circuit board as the radio module is a good solution. A printed quarter wavelength monopole antenna is very easy to design and can be tuned simply by slight changes in length. This article presents basic guidelines on how to design such an antenna for use together with the nRF2401 Single chip Transceiver and the nRF2402 Single chip 2.4GHz Transmitter.The described antenna should be fabricated on standard 1.6mm, low cost FR4 printed circuit board (PCB). Wellhope Wireless manufacture based in 4G;LTE antenna ; MIMO;GPS antenna;GSM;3G;Wlan;antenna and RF pigtail cable; more question or inquire feel free to sent us email;wh@wellhope-wireless.com

What is LTE? Long Term Evolution (LTE) technology is sometimes called 3.9G or Super 3G and has been developed by the Third Generation Partnership Project (3GPP) as an improvement to the current Universal Mobile Telecommunications System (UMTS). By using Orthogonal Frequency Division Multiple Access (OFDMA), LTE will be able to provide download rates of 150 Mbps for multi-antenna (2x2) multiple-input multiple output (MIMO) for the highest category terminals. For these terminals upload rates in the 50 Mbps range will allow an efficient transfer of data. LTE makes very efficient use of the available spectrum with channel bandwidths from 1.25 Megahertz (MHz) to 20 MHz The flexible “slice” will allow LTE to be more easily implemented in countries where 5 MHz is a commonly allocated amount of spectrum. LTE will also co-exist with legacy systems already rolled out around the world. Wellhope Wireless manufacture based in 4G;LTE antenna ; MIMO; GPS antenna ;GSM;3G;Wlan;antenna and RF pigtail cable; more question or inquire feel free to sent us email;wh@wellhope-wireless.com Wellhope Wireless