Novel synthesis of multiprobe reflectometers is presented. A developed estimation of measurement conditions allows for the choice of spacings between probes ensuring wideband operation. To verify the proposed concept, the multiprobe reflectometer having bandwidth 0.15–8GHz has been manufactured. The measurement results are close to ones obtained using vector network analyzer (VNA). © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1968–1971, 2015