A Reflection Type of MSW Signal-to-Noise Enhancer in the 400-MHz Band

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概要

• 論文の詳細を見る

• We have investigated the operation of a reflection type magnetostatic wave signal-to-noise enhancer in detail. It has good enhancement characteristics, low insertion loss, and low operating power. It is also composed of a transducer using a ceramic substrate having a high dielectric constant and an LaGa-YIG film with low saturation magnetization to enable direct opelation in the 400-MHz band (the IF band of current DBS receivers). Enhancement of 8 dB was achieved over a 40-MHz bandwidth. Although its operating frequency range depends critically on device temperature, we can compensate for the temperature dependence by adjusting the bias magnetic field. Experiments showed that the enhancer improved the received carrier-to-noise ratio by 2 to 3 dB, providing good noise reduction in DBS reception.

• 社団法人電子情報通信学会の論文
• 1999-04-25

著者

• Kuki Takao

  Nhk Science And Technology Research Laboratories

• Kuki Takao

  Nhk Science And Technical Research Laboratories

• Nomoto Toshihiro

  NHK Science and Technical Research Laboratories

関連論文

• A Signal-to-Noise Enhancer with Extended Bandwidth Using Two MSSW Filters and Two 90° Hybrids
• A Reflection Type of MSW Signal-to-Noise Enhancer in the 400-MHz Band
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