A Novel Compact Balun Using a Weakly Coupled Line With Grounded Resonator

@article{Tsai2014ANC,
  title={A Novel Compact Balun Using a Weakly Coupled Line With Grounded Resonator},
  author={Chung-Hao Tsai and Hung-Chuan Chen and Tzong-Lin Wu},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2014},
  volume={24},
  pages={763-765}
}
A compact balun is proposed using a very weakly coupled line loaded with a parallel resonator. Based on an equivalent circuit model, the balun behaves as a matching network for odd-mode operation and a bandstop circuit for even-mode operation. The proposed balun can exhibit a broad bandwidth from 2.4 to 3.6 GHz with return loss of S 11 below 10 dB. This… CONTINUE READING