Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/198720
Title: 3D printed bandpass filters using compact high-<italic>Q</italic> hemispherical resonators with improved out-of-band rejection
Authors: Jin Li;Cheng Guo;Lijian Mao;Jun Xu
Year: 2017
Publisher: IET
Abstract: RF design and implementation of ceramic-filled resin-based 3D printed millimetre-wave bandpass filters (BPFs) using a new class of compact high-quality-factor hemispherical cavity resonators are addressed. Design concept of the hemispherical resonator is discussed for BPF applications in both <i>X</i> and <i>Ka</i> bands. For validation purpose, the <i>Ka</i>-band fourth-order BPF is fabricated with a high-temperature-resistant ceramic-filled resin using a fast and low-cost stereolithography-based 3D printing technique, and its surface metallisation is realised by employing electroless copper/silver plating. The proposed BPF's geometrical configuration contributes to a significantly improved out-of-band rejection. The RF-measured results demonstrate the <i>Ka</i>-band BPF an insertion loss of 0.43-0.9 dB from 31.52 to 32.42 GHz, a passband return loss mostly better than 15 dB, and a small frequency shift of about 0.06%.
URI: http://localhost/handle/Hannan/198720
volume: 53
issue: 6
More Information: 413,
415
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7880764.pdf825.71 kBAdobe PDF
Title: 3D printed bandpass filters using compact high-<italic>Q</italic> hemispherical resonators with improved out-of-band rejection
Authors: Jin Li;Cheng Guo;Lijian Mao;Jun Xu
Year: 2017
Publisher: IET
Abstract: RF design and implementation of ceramic-filled resin-based 3D printed millimetre-wave bandpass filters (BPFs) using a new class of compact high-quality-factor hemispherical cavity resonators are addressed. Design concept of the hemispherical resonator is discussed for BPF applications in both <i>X</i> and <i>Ka</i> bands. For validation purpose, the <i>Ka</i>-band fourth-order BPF is fabricated with a high-temperature-resistant ceramic-filled resin using a fast and low-cost stereolithography-based 3D printing technique, and its surface metallisation is realised by employing electroless copper/silver plating. The proposed BPF's geometrical configuration contributes to a significantly improved out-of-band rejection. The RF-measured results demonstrate the <i>Ka</i>-band BPF an insertion loss of 0.43-0.9 dB from 31.52 to 32.42 GHz, a passband return loss mostly better than 15 dB, and a small frequency shift of about 0.06%.
URI: http://localhost/handle/Hannan/198720
volume: 53
issue: 6
More Information: 413,
415
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7880764.pdf825.71 kBAdobe PDF
Title: 3D printed bandpass filters using compact high-<italic>Q</italic> hemispherical resonators with improved out-of-band rejection
Authors: Jin Li;Cheng Guo;Lijian Mao;Jun Xu
Year: 2017
Publisher: IET
Abstract: RF design and implementation of ceramic-filled resin-based 3D printed millimetre-wave bandpass filters (BPFs) using a new class of compact high-quality-factor hemispherical cavity resonators are addressed. Design concept of the hemispherical resonator is discussed for BPF applications in both <i>X</i> and <i>Ka</i> bands. For validation purpose, the <i>Ka</i>-band fourth-order BPF is fabricated with a high-temperature-resistant ceramic-filled resin using a fast and low-cost stereolithography-based 3D printing technique, and its surface metallisation is realised by employing electroless copper/silver plating. The proposed BPF's geometrical configuration contributes to a significantly improved out-of-band rejection. The RF-measured results demonstrate the <i>Ka</i>-band BPF an insertion loss of 0.43-0.9 dB from 31.52 to 32.42 GHz, a passband return loss mostly better than 15 dB, and a small frequency shift of about 0.06%.
URI: http://localhost/handle/Hannan/198720
volume: 53
issue: 6
More Information: 413,
415
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7880764.pdf825.71 kBAdobe PDF