A 3-D Miniaturized High Selectivity Bandpass Filter in LTCC Technology

@article{Arabi2014A3M,
  title={A 3-D Miniaturized High Selectivity Bandpass Filter in LTCC Technology},
  author={Eyad Arabi and M. Lahti and Tauno Vaha-Heikkila and Atif Shamim},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2014},
  volume={24},
  pages={8-10}
}
Transmission zeros are used to improve the roll-off factors of filters but as a consequence, the out-of-band rejection decreases. In this work, an LTCC filter design is presented which employs a series inductor (implemented as a via hole) to improve the out-of-band rejection by introducing a third transmission zero. The filter, designed for GPS band (1.57… CONTINUE READING