Title :
Calibration of a gigahertz-bandwidth vector signal generation and analysis system
Author :
Qiu, J. ; Abe, D. ; Antonsen, T.M.Jr. ; Danly, B.G. ; Levush, B.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
The calibration procedure for a vector signal generation and analysis system with over 1.6 GHz Bandwidth is described. To achieve the desired bandwidth, two software filters (a prefilter and a postfilter) are used to correct the non-uniform frequency responses in the system. We describe techniques for obtaining the response functions of both the signal generator and the signal analyzer. The measured response functions are used to construct the filters to achieve the flat frequency response. Finally a 1-Gsymbol/s 32-QAM raised-cosine-filtered waveform is generated to demonstrate the application of the system.
Keywords :
calibration; filtering theory; frequency response; quadrature amplitude modulation; waveform generators; 1.6 GHz; 32-QAM raised-cosine-filtered waveform; bandwidth; calibration; frequency response function; postfilter; prefilter; software filter; vector signal analyzer; vector signal generator; Bandwidth; Baseband; Broadband amplifiers; Calibration; Filters; Frequency measurement; Frequency response; Power system modeling; Signal analysis; Signal generators;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210457
