Mitsubishi Electric Announces Sale of High Output InGaP HBT Amplifier MGFS36E2527 for WiMAX Terminals.TOKYO -- Mitsubishi Electric Corporation (President and CEO (1) (Chief Executive Officer) The highest individual in command of an organization. Typically the president of the company, the CEO reports to the Chairman of the Board. : Setsuhiro Shimomura) announced today it has finished development of a high output Indium Gallium Phosphide Indium gallium phosphide (InGaP) is a semiconductor composed of indium, gallium and phosphorus. It is used in high-power and high-frequency electronics because of its superior electron velocity with respect to the more common semiconductors silicon and gallium arsenide. Heterojunction Bipolar Transistor The heterojunction bipolar transistor (HBT) is an improvement of the bipolar junction transistor (BJT) that can handle signals of very high frequencies up to several hundred GHz. It is common in modern ultrafast circuits, mostly radio-frequency (RF) systems. (InGaP HBT HBT Heterojunction Bipolar Transistor HBT HyCult Biotechnology (Uden, The Netherlands) HBT Hanbury-Brown-Twiss (interferometer) HBT Herring Bone Twill HBT Heflex Bioengineering Test )1, and will begin sample shipment on December 15, 2006. The amplifiers are for WiMAX2 terminals used in mobile and domestic markets, and are the smallest of its kind in the industry at the time of this release. 1High frequency element often used in mobile handsets for its high efficiency operability 2Worldwide Interoperability for Microwave Access: a high-speed wireless communications system with a communication range of 50 km and a transmission speed of up to 75Mbps. Summary of Sale [TABLE OMITTED] Point of Sale During the spread of broadband communication services in recent years, WiMAX has gained attention for not only establishing both specifications IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. 802.16-2004 fixed line communication and IEEE802.16e-2005 for high-speed mobile communication, but also its ability to connect regions where laying fiber optic cable Noun 1. fiber optic cable - a cable made of optical fibers that can transmit large amounts of information at the speed of light fibre optic cable transmission line, cable, line - a conductor for transmitting electrical or optical signals or electric power , etc., proves to be difficult. However, in order to retain the advantages of WiMAX and guarantee the quality of the wireless communication between the WiMAX terminal and the Base Transceiver Station Base Transceiver Station (BTS) is the equipment which facilitates the wireless communication between user equipments (UE) and the network. UEs are devices like mobile phones (handsets), WLL phones, computers with wireless internet connectivity, WiFi and WiMAX gadgets etc. (BTS), the industry has been trying to develop a high output transmission amplifier with low signal distortion. Mitsubishi Electric to date has sold a Pre-WiMAX transmission module for business services that was developed in the United States. The sale of this new amplifier for WiMAX terminals capable of reducing transmission signal distortion is also the world's smallest transmission module with competitive high output. Product Features 1) Low distortion high output wireless communication To produce strong wireless communication, it is necessary to reduce signal distortion while also strengthening output. Using the InGaP HBT device frequently used in mobile handsets, we were able to reduce Error Vector Magnitude The error vector magnitude or EVM is a measure used to quantify the performance of a digital radio transmitter or receiver. A signal sent by an ideal transmitter or received by a receiver would have all constellation points precisely at the ideal locations, however various (EVM) by 2.5% at 27 dBm3 by optimizing construction of the device structure to fit the WiMAX Orthogonal Frequency Division Multiplexing See FDM. (communications) frequency division multiplexing - (FDM) The simultaneous transmission of multiple separate signals through a shared medium (such as a wire, optical fibre, or light beam) by modulating, at the transmitter, the separate signals into separable (OFDM (Orthogonal Frequency Division Multiplexing) A digital transmission technique that uses a large number of carriers spaced apart at slightly different frequencies. ) modulation method while maintaining a competitive output of 27 dBm. It is unique in its application to both IEEE802.16-2004 (fixed line communication) and IEEE802.16e-2005 (mobile communication). 3An expression of electric power measured in milliwatts. 27 dBm=502mW 2) Built in peripheral circuit, reduced weight and size of WiMAX terminal We developed the world's smallest high output amplifier (4.5mm x 4.5mm) by embedding the power detector (analyses the amplifier output) and step attenuator at·ten·u·a·tor n. A device that attenuates an electrical signal. Noun 1. attenuator - an electrical device for attenuating the strength of an electrical signal (controls amplifier output) in the module. The height has also been kept to 1 mm, so it can also be used in PC card terminals. The external matching circuit is also unnecessary because impedance of the input/output port is at the wireless device standard of 50 ohms. This reduces the number of parts and mounting area, and thus will reduce size and weight of the WiMAX terminal. Future Developments We plan to make an amplifier for 3.5 GHz and 2.3 GHz band by early fiscal 2008. Main Specifications [TABLE OMITTED] About Mitsubishi Electric With over 80 years of experience in providing reliable, high-quality products to both corporate clients and general consumers all over the world, Mitsubishi Electric Corporation (TOKYO:6503) is a recognized world leader in the manufacture, marketing and sales of electrical and electronic equipment used in information processing and communications, space development and satellite communications, consumer electronics, industrial technology, energy, transportation and building equipment. The company recorded consolidated group sales of 3,604 billion yen (US$ 30.8billion4) in the fiscal year ended March 31, 2006. For more information visit http://global.mitsubishielectric.com. 4At an exchange rate of 117 yen to the US dollar, the rate given by the Tokyo Foreign Exchange Market on March 31, 2006. |
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