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Field programmable RF (FPRF) is a class of radio frequency transceiver microchip that mimics the concept of an FPGA (field programmable gate array) in the RF domain to deliver a multi-standard, multi frequency device. The earliest use of the term comes from Wireless Design Mag and it has subsequently been used by a wide range of electronics trade magazines to describe the emerging class of multi frequency and multi standard flexible RF chips. == History == The term was coined by the US trade title Wireless Design Mag to describe an emerging class of highly flexible transceivers. It has since been used by a range of English language electronics and telecoms trade journals across the globe, including EE Times Asia, Electronics Weekly (UK), Digitimes (Taiwan), EE Times (US), and Light Reading (UK / US) The device enabled telecommunications equipment manufacturers to cope with the lack of universal communication standards and frequencies. Existing limitations meant very few countries' telecommunications regulators adopted the same standard or bandwidth, this either required multi-band (such as tri-band phones) equipment that could be used in many countries or reduced the scales of economy that manufacturers could benefit from. The multi standard, multi frequency traits of the FPRF enabled a single design to be configured using software. Devices with this new functionality were first demonstrated in late 2007 and early 2008. One of the first such devices was Lime Microsystems microTCA Broadband transceiver, demonstrated at Mobile World Congress in February 2008. This had a frequency range of 350MHz to 4GHz and was suited to WiMax. FPRF designs have subsequently emerged from a range of companies and, to date, the most flexible FPRF currently on the market delivers 300 MHz to 3.8 GHz and allows operation on a range of standards, including FDD-LTE, TDD-LTE, W-CDMA, CDMA-2000 and HSDPA+ and WiMAX. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Field Programmable RF」の詳細全文を読む スポンサード リンク
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