Title :
The performance of unbiased balanced photodiodes for optical calibration of radio-frequency antenna arrays
Author :
Urick, Vincent J. ; Diehl, John F. ; McDermitt, Christopher S. ; Bucholtz, Frank ; Williams, Keith J.
Author_Institution :
U.S. Naval Res. Lab., Washington, DC, USA
Abstract :
The performance of unbiased balanced photodiodes has been measured for RF antenna array calibration. As opposed to a single unbiased photodiode, the unbiased balanced photodiodes suppress the photodiode-induced distortion and demonstrates a 26-dB increase in second-order output intercept point. This increase in intercept point translates to a 13-dB increase in spurious-free dynamic range for the second-order-limited link.
Keywords :
antenna arrays; calibration; photodiodes; RF antenna array; optical calibration; radio frequency antenna arrays; second-order output intercept point; unbiased balanced photodiodes; Antenna arrays; Calibration; Gain; Optical attenuators; Optical distortion; Photodiodes; Radio frequency;
Conference_Titel :
Avionics Fiber-Optics and Photonics Technology Conference (AVFOP), 2010 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4244-5312-2
Electronic_ISBN :
978-1-4244-5313-9
DOI :
10.1109/AVFOP.2010.5637776
