Interference Suppression in Radio Receivers by using Frequency Retranslation

Nesimoglu T., Charalampopoulos Z., Beach M. A.

10th Annual IEEE Wireless and Microwave Technology Conference, Florida, Amerika Birleşik Devletleri, 20 - 21 Nisan 2009, ss.240-242 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Florida
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.240-242
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In the presence of a strong received signal, non-linear radio frequency (RF) front-end components generate distortion products that add interference to a wanted signal. In this paper, an interference suppression technique using frequency retranslation is presented. When the wanted signal level is high, experimental results show a suppression of intermodulation distortion (IMD) by 25 dB. When a small wanted signal is received along with high level interferers, the technique suppresses interferers by 14 dB and in-band interference by more than 18 dB.