Abstract
In this paper, a reflectionless bandpass filter is designed in order to improve the stop-band attenuation of the bandpass filter and prevent the stop-band signal from being reflected back to the system, reducing the Electromagnetic Interference (EMI) of the system as well as improving the Electromagnetic Compatibility (EMC) and reliability of the system. The design equation of it is given as well, which can be applied to design reflectionless bandpass filter of any frequency. In this paper, the design equation is used to design a reflectionless bandpass filter for the 5G New Radio (NR) n77 band, using a thin-film Integrated Passive Device (IPD) process and Through Silicon Vias (TSV) process on a high-resistance silicon substrate. With 3 dimensional (3D) modeling performed in High-Frequency Structure Simulator (HFSS) software, a simulation result with a center frequency of 3.78 GHz, an insertion loss of 1.33 dB, a 3 dB bandwidth of 1.11 GHz, an insertion loss of 18.7 dB at twice the frequency, and a return loss of the stopband of 11 dB or less is obtained. The size of the model is 1 mm × 1 mm. The correctness of the design equation and the reflectionless properties of the bandpass filter are verified by 3D electromagnetic field simulation experiments.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Shin KR, Eilert K. Compact low cost 5G NR n78 band pass filter with silicon IPD technology. In: IEEE 2018 IEEE 19th wireless and microwave technology conference (WAMICON) (2018.4.9–2018.4.10)]. Sand Key, FL, USA;2018. pp. 1–3.
Morgan MA, Boyd TA. Theoretical and experimental study of a new class of reflectionless filter. IEEE Trans Microw Theory Tech. 2011;59(5):1214–21.
Khalaj-Amirhosseini M, Taskhiri MM. Twofold reflectionless filters of inverse-Chebyshev response with arbitrary attenuation. IEEE Trans Microw Theory Tech. 2017:1–5.
Lee TH, Lee B, Lee J. First-order reflectionless lumped-element lowpass filter (LPF) and band-pass filter (BPF) design. In: 2016 IEEE MTT-S international microwave symposium (IMS). IEEE;2016. pp. 1–4.
Guilabert A. The design of low reflection filters by drop-insert configuration (2018).
Psychogiou D, Simpson DJ, Gómez-García R. Input-reflectionless acoustic-wave-lumped-element resonator-based bandpass filters. In: 2018 IEEE/MTT-S international microwave symposium-IMS. IEEE;2018. pp. 852–855.
Chien SH, Lin YS. Novel wideband absorptive bandstop filters with good selectivity. IEEE Access. 2017;5:18847–61.
Gómez-García R, Muñoz-Ferreras JM, Psychogiou D. Symmetrical quasi-reflectionless BSFs. IEEE Microw Wirel Compon Lett. 2018;28(4):302–4.
Shao JY, Lin YS. Narrowband coupled-line bandstop filter with absorptive stop-band. IEEE Trans Microw Theory Tech. 2015;63(10):3469–78.
Hagag MF, Abdelfattah M, Peroulis D. Balanced octave-tunable absorptive band-stop filter. In: 2018 IEEE 19th wireless and microwave technology conference (WAMICON). IEEE;2018. pp. 1–4.
Chieh JCS, Rowland J. A fully tunable C-band reflectionless band-stop filter using L-resonators. In: 2016 46th European microwave conference (EuMC). IEEE;2016. pp. 131–133.
Morgan MA, Boyd TA. Reflectionless filter structures. IEEE Trans Microw Theory Tech. 2015;63(4):1263–71.
Morgan MA. Reflectionless filters. Norwood, MA, USA: Artech House;2017, p. 59.
Li Y, Wang C, Kim NY. A high performance compact Wilkinson power divider using GaAs-based optimized integrated passive device fabrication process for LTE application. Solid-State Electron. 2015;103:147–53.
Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 61564005).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Liu, G., Xing, M., Li, X., Xu, S., Dai, C. (2020). Design of a Miniaturized Reflectionless Bandpass Filter with High Selectivity for 5G Network. In: Patnaik, S., Wang, J., Yu, Z., Dey, N. (eds) Recent Developments in Mechatronics and Intelligent Robotics. ICMIR 2019. Advances in Intelligent Systems and Computing, vol 1060. Springer, Singapore. https://doi.org/10.1007/978-981-15-0238-5_60
Download citation
DOI: https://doi.org/10.1007/978-981-15-0238-5_60
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-0237-8
Online ISBN: 978-981-15-0238-5
eBook Packages: Intelligent Technologies and RoboticsIntelligent Technologies and Robotics (R0)