A novel analog photonic method for broadband multipath interference cancellation

John Chang, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


A novel analog optical technique for multipath interference cancellation of broadband signals is proposed.Multiple optical compensation branches are utilized to replicate wireless multipath channel effects. The duplicated signal is subtracted from the total received signal to recover the signal of interest while suppressing interference. The proposed architecture achieved 40 dB of cancellation over 200 MHz and 50 dB over 10 MHz. The depth and broadband nature of the cancellation demonstrates the precision of optical components and the validity of our interference cancellation scheme.

Original languageEnglish (US)
Article number6517545
Pages (from-to)377-379
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number7
StatePublished - Jul 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


  • Broadband interference cancellation
  • Electrooptic modulation
  • Multipath interference
  • RF photonics


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