A Compact UWB Band-Pass Filter Using Embedded Circular Slot Structures for Improved Upper Stop-band Performance

Autor: Xianfeng Liang, Jian Ren, Gert Frølund Pedersen, Minggui Ai, Ming Shen, Jan H. Mikkelsen, Ole Kiel Jensen
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Shen, M, Ren, J, Mikkelsen, J H, Liang, X, Jensen, O K, Ai, M & Pedersen, G F 2016, A Compact UWB Band-Pass Filter Using Embedded Circular Slot Structures for Improved Upper Stop-band Performance . in 16th IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016) . IEEE Press, 2016 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB), 16th IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016), Nanjing, China, 16/10/2016 . https://doi.org/10.1109/ICUWB.2016.7790551
Popis: This paper presents an ultra-wideband band-pass filter designed using a slot-line ring resonator and two pairs of embedded circular slot structures. The slot-line ring resonator is used to form the desired UWB passband, and the upper stop-band response is suppressed by embedding the circular slot structures into the ring resonator. This is different from conventional designs using cascaded bandstop/low-pass filters for stop-band response suppression, which usually leads to big circuit sizes. And hence the proposed approach can reduce the circuit size significantly. A prototype filter with a compact size (13.6 mm×6.75 mm) has been implemented for experimental validation. The measured results show a −3 dB frequency band from 3.4 GHz to 11.7 GHz and > 20 dB upper stop-band suppression from 12.5 GHz to 20GHz.
Databáze: OpenAIRE