Miniaturised ISM band HMSIW band-pass filter loaded with wide U slot

The Journal of Engineering

Ramalingam Sandhya¹ 

[1] Department of Electronics and Communication Engineering , Sri Venkateswara College of Engineering, Anna University , Sriperumbudur, Tamil Nadu 602117 , India

关键词: industrial scientific;    medical radio b;    sharp side b;    rejection;    frequency 5.8 GHz;    single layer st;    ard printed circuit board process;    half-mode substrate integrated waveguide filter;    return loss;    miniaturised ISM b;    HMSIW b;    -pass filter;    wide U slot;    insertion loss;    resonant frequency control;    frequency 2.4 GHz;   

DOI  :  10.1049/joe.2017.0410

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

In this study, two half-mode substrate integrated waveguide (HMSIW) filters are proposed by introducing wide U slot in the conventional SIW (substrate integrated waveguide) structure. In the first case, lower ISM (industrial, scientific and medical radio) band HMSIW filter is designed by extending the centre stub, thereby controlling the resonant frequency and bandwidth. In the second case, higher ISM band HMSIW filter is designed by shorting the extended stub using via. These filters are having a compact core size of 26 mm × 11 mm and work at 2.4 and, 5.8 GHz with a fractional bandwidth of 4.0 and 2.6%, respectively. The filter is fabricated with a single layer standard printed circuit board process. The measured results are good and in agreement with simulated results. The band-pass filter structure has the advantage of low insertion loss, good return loss, sharp side band rejection and compact size.

【 授权许可】

CC BY