Hyperfine Photonic Spectral Filtering for Wideband Microwave Filters

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Photonic solutions for microwave filters offer substantial advantages over electronic implementations, such as wider operating bandwidth and immunity to electromagnetic interference. Although photonic processing of microwave signals has been explored, previous reported approaches have limited filtering functions including low spectral range of several gigahertz, non-flat-topped, high side lobes, high complexity, and limited reconfigurability.

Purdue University researchers have developed a novel method to filter wideband microwave-millimeter wave signals in the optical spectrum. This technology optimizes the performance of a radio receiver. This method enables filter and waveform generation technology for radio frequency applications such as pulsed radar, radio frequency sensing, and electronic countermeasures.

Advantages:
-Provides user-specified microwave-millimeter wave filtering over an ultra-wideband
-Enables filter and waveform generation technology for radio frequency applications

Potential Applications:
-Optics
-Radial Technology
Aug 9, 2007
Utility Patent
United States
7,974,534
Jul 5, 2011

Aug 11, 2006
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
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