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Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
Published on: June 25, 2021
Reconfigurable parametric channelized receiver for instantaneous spectral analysis.
Camille-Sophie Brès1, Sanja Zlatanovic, Andreas O J Wiberg
1Department of Electrical Engineering, University of California San Diego, 9500 Gilman Dr, La Jolla, California 92093, USA. cbres@ece.ucsd.edu
Optics Express
|March 4, 2011
Summary
We developed a novel photonic receiver for real-time radio frequency (RF) spectrum monitoring. This reconfigurable channelizer uses wavelength multicasting for efficient RF signal analysis up to 15 GHz.
Area of Science:
- Photonics
- Radio Frequency Engineering
- Optical Signal Processing
Background:
- Instantaneous radio frequency (RF) spectrum monitoring requires advanced receiver technologies.
- Existing channelizers face limitations in reconfigurability and bandwidth.
Purpose of the Study:
- To propose and demonstrate a photonic approach for a reconfigurable channelized RF receiver.
- To enable instantaneous RF spectrum monitoring and analysis with enhanced flexibility.
Main Methods:
- Utilized wavelength multicasting in a 2-pump self-seeded parametric mixer to generate high-quality RF signal copies.
- Employed off-the-shelf filtering elements like Fabry-Perot etalons and wavelength division demultiplexers.
- Implemented a self-seeding scheme for efficient signal replication and reconfigurability.
Main Results:
- Demonstrated channelizer operation with a bandwidth of up to 15 GHz and channel spacing of 500 MHz.
- Verified reconfigurability by tuning the receiver's operating bandwidth and channel spacing.
- Achieved high-quality RF signal copies through parametric mixing.
Conclusions:
- The proposed photonic parametric channelizer offers a flexible and efficient solution for RF spectrum monitoring.
- The self-seeding and multicasting approach enables easy reconfigurability by tuning input waves.
- This technology advances the capabilities of real-time RF signal analysis.
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