Title :
Photonic mixers for wide bandwidth RF receiver applications
Author :
Lindsay, Anthony C. ; Knight, Geoff A. ; Winnall, Stephen T.
Author_Institution :
Div. of Electron. Warfare, Defence Sci. & Technol. Organ., Salisbury, SA, Australia
fDate :
9/1/1995 12:00:00 AM
Abstract :
Optoelectronic mixers can exhibit a very wide bandwidth of operation with significantly reduced third-order intermodulation products. A 20 GHz bandwidth optoelectronic mixer has been constructed and characterized. The third-order intermodulation terms were demonstrated to be more than 70 dB below the IF output. The mixer was then incorporated into a simple superheterodyne receiver architecture, which was shown to have a tangential sensitivity of -66 dBm and a compressive dynamic range of 44 dB. System limitations and possible improvements are discussed
Keywords :
integrated optoelectronics; intermodulation; microwave mixers; optical receivers; superheterodyne receivers; 20 GHz; microwave optoelectronics; optoelectronic mixers; photonic mixers; superheterodyne receiver architecture; third-order intermodulation products reduction; wide bandwidth RF receiver applications; Bandwidth; Dynamic range; Integrated circuit technology; Optical fibers; Optical mixing; Optical modulation; Optical receivers; Optical signal processing; Radio frequency; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
