A Ferrite Transformer-Based Power Divider with 400:1 Bandwidth

摘要

A wideband very high frequency (VHF) power divider for IoT uses commercially available off-the-shelf ferrite transformers. The measured operating frequency range is from 1 to 400 MHz (a bandwidth of 400:1). Measured insertion loss is less than 0.6 dB and return loss is greater than 18 dB over the entire band. Measured amplitude and phase imbalance are within 0.05 dB and 1.75 degrees, respectively. Isolation is better than 20 dB over the band.