Friday, April 9, 2010

transmission efficiency

By the analysis of Cassegrain antenna structure and Zemax, the 1°field angle Cassegrain antenna, whose primary and secondary mirrors are aspheric, has been 12hot cheap prom dresses designed. Its properties have been analyzed, such as gain, image quality, collimation characteristic, and transmission efficiency.3. The optical antenna system in transceiver has been designed by discount wedding dresses means of Zemax. This system includes transmitter cheap wedding gown dresses channel, receiving channel and experiment channel. The system can realize the functions of transmitter-receiver isolation and multi-light ways using dichroic mirrors and beam splitting prisms. The materials of cheap evening dresses optical elements have been analyzed and reasonably selected after consulting with the produced unit.4. The wavefront aberration and transmission efficiency of the custom made prom dresses system have been tested, the RMS is 0.046λand the efficiency is 71.4%. Both of them satisfy the design requirement. The image cheap evening dresses quality and beam spread loss have been analyzed, meanwhile, the power decline curve has been obtained by means of the detailed analysis of antenna system in partial axis situation.
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