Teltron's Phase Shifter Technology Improves Satellite TV Performance.Business Editors/High-Tech Writers SEOUL, Korea--(BUSINESS WIRE)--Oct. 20, 2003 Teltron's phase shifter, TP001 (model name) was designed for high performance in an active antenna for DBS (Direct Broadcast Satellite) A one-way TV broadcast service from a communications satellite to a small round or oval dish antenna no larger than 20" in diameter. . And its topology was specifically selected to minimize process variations on performance. The device changes the output signal phase by applying a variable control signal, providing good match over the full phase shifting range. The TP001 has 11.7-12.8 GHz of frequency range and is manufactured using reliable, 0.6-micron, GaAs MESFET See FET. process. Phase can be shifted from 0 degrees to 337.5 degrees in 22.5 degree steps. The innovative 4-bit phase shifter is about 50% smaller than competitors' chips with similar characteristics. TP001 was downsized eliminating useless functions of existing products that have 6-18 GHz of operating frequency and using low-pass/high-pass filter architecture. "The demand of those who want to enjoy satellite TV on the move is increasing. The number of televiewers who watch satellite TV using parabolic antennas is also growing day by day. We need to meet the demand of this growth and improve quality," says Jae-jin Lee, 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. . Direct broadcasting satellite Broadcasting Satellite or BS is a common name of Japanese communication satellites. First ever satellite of this series, called BSE or Yuri was launched in 1978, last satellite of BS series or BS-3b was launched in 1991. offers clearer display because it accepts digital signal processing See DSP. Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). . Active antenna, which electrically tracks the broadcasting signal from the satellite, is a high-tech broadcasting receiving system using active devices. It enables mobile televiewers to watch clear display regardless of vehicle's trembling using phase shifter technology. The device is 100% RF tested to ensure compliance to performance specifications. The totally integrated GaAs monolithic microwave integrated circuit MMICs, or Monolithic Microwave Integrated Circuits, are a type of integrated circuit (IC) devices that operate at microwave frequencies (1 GHz to 300 GHz). They typically perform functions such as microwave mixing, power amplification, low noise amplification, and high phase shifter on a single chip is offered in a leadless air cavity package while minimizing the parasitic effect of the plastic package. Teltron succeeded in packaging phase shifter MMIC (Monolithic Microwave IC) An integrated circuit used in high-frequency applications such as mobile phones. Also known as "monolithic microwave/millimeter-wave IC," MMICs combine transistors and passive devices (resistors, capacitors, etc. for the first time in the world. The device measures 6x6x1.7 (mm 3). www.teltron.com |
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