Mixer-based, vector-corrected, vector signal/network analyzer offering 300kHz-20GHz bandwidth and traceable phase response

Author

Blockley, Peter ; Gunyan, Daniel ; Scott, Jonathan B.

Author_Institution

Macquarie Univ., Sydney, NSW, Australia

fYear

2005

fDate

12-17 June 2005

Abstract

We describe an instrument that uses directional bridges and a five-channel, mixer-based receiver to make vector-corrected measurements of signals from 0.3MHz to 20GHz. This instrument yields voltage, current or travelling waves in either time-domain or frequency-domain with ≈85dB SFDR and with phase accuracy that can be traced to national standards laboratories. The instrument is used to characterize the effect of an amplifier on a wideband complex-modulated signal. Results are compared with data gathered using a calibrated sampling oscilloscope equipped to capture long records with timebase correction. We show effects such as input-impedance induced distortion that can be seen only with this new instrument.

Keywords

bridge instruments; frequency-domain analysis; mixers (circuits); network analysers; oscilloscopes; time-domain analysis; 300 to 20E6 kHz; calibrated sampling oscilloscope; directional bridges; five-channel receiver; frequency-domain; input-impedance induced distortion; mixer-based receiver; mixer-based signal/network analyzer; time-domain; timebase correction; traceable phase response; vector-corrected measurements; vector-corrected signal/network analyzer; wideband complex-modulated signal; Bandwidth; Bridge circuits; Broadband amplifiers; Frequency domain analysis; Instruments; Laboratories; Sampling methods; Signal analysis; Time domain analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1516977

Filename

1516977