Development of terahertz waveguide diplexer
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Key Lab of Microwave Remote Sensing,National Space Science Center,Chinese Academy of Sciences,Key Lab of Microwave Remote Sensing,National Space Science Center,Chinese Academy of Sciences,Key Lab of Microwave Remote Sensing,National Space Science Center,Chinese Academy of Sciences,Key Lab of Microwave Remote Sensing,National Space Science Center,Chinese Academy of Sciences

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    Abstract:

    Using formation netw orking of micro-satellites to observe the earth and miniaturizing microw ave devices has been one of the development trends of space remote sensing. Based on atmospheric microw ave sounder for micro-satellites, tw o high-performance terahertz w aveguide diplexers w ere designed. With mode-matching method, the discontinuity element of diplexer w as analyzed and the parameters of diplexer w ere optimized. In order to improve out-band rejection of 89 GHz filter, different w idths of resonant cavity w as adopted. The simulation results indicated that tw o diplexers had good performance in insertion loss, out-band rejection, return loss, etc. It is proved that mode-matching method is effective in designing terahertz devices.

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WANG Jing, ZHANG Sheng-Wei, LUO Yang-Jin, MENG Jin. Development of terahertz waveguide diplexer[J]. Journal of Infrared and Millimeter Waves,2018,37(4):493~500

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History
  • Received:October 13,2017
  • Revised:January 18,2018
  • Adopted:December 15,2017
  • Online: August 30,2018
  • Published: