An Integrable Image Rejection System Using a Complex Analog Filter with Variable Bandwidth and Center Frequency Characteristics

• MUTO Cosy

  the Department of Telecommunications, Takuma National College of Technology

• HOSHIKAWA Hiroshi

  the Department of Telecommunications, Takuma National College of Technology

抄録

In this paper, we discuss an IF image rejection system with variable bandwidth and center frequency. The system is consists of a pair of frequency mixers multiplied by the complex sinusoid and a complex analog filter. By employing the complex leapfrog structure using OTA-C configuration and the frequency transformation from the normalized LPF, the proposed system is capable of variable bandwidth and center frequency characteristics. SPICE simulations result more than 43 [dB] image rejection is achieved for 6 [kHz] and 12 [kHz] bandwidths at 50 [kHz] IF.

収録刊行物

• IEICE transactions on fundamentals of electronics, communications and computer sciences

  IEICE transactions on fundamentals of electronics, communications and computer sciences 85 (2), 309-315, 2002-02-01

  一般社団法人電子情報通信学会

キーワード

• image rejection
• software radio
• complex filter
• complex leapfrog
• variable characteristics

詳細情報

• CRID: 1572543027348891136
• NII論文ID: 110003216733
• NII書誌ID: AA10826239
• ISSN: 09168508
• 本文言語コード: en
• データソース種別:
  • CiNii Articles