Miniaturized dual-band bandpass filter using quarter-wavelength stepped-impedance resonators

2012 ◽  
Author(s):  
Li Gao ◽  
Xiu Yin Zhang ◽  
Kai Xu Wang ◽  
Bin-Jie Hu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Quarter Wavelength

Compact dual-band bandpass filter using meander short-circuit quarter-wavelength resonators

2011 ◽  
Vol 54 (2) ◽  
pp. 344-346 ◽  
Author(s):  
H. W. Liu ◽  
Z. C. Zhang ◽  
G. W. Wei ◽  
L. Shen ◽  
X. H. Guan
Keyword(s):  
Bandpass Filter ◽  
Short Circuit ◽  
Dual Band ◽  
Quarter Wavelength

scholarly journals Effect of the defected microstrip structure shapes on the performance of dual-band bandpass filter for wireless communications

2021 ◽  
Vol 10 (1) ◽  
pp. 232-240
Author(s):  
Mussa Mabrok ◽  
Zahriladha Zakaria ◽  
Yully Erwanti Masrukin ◽  
Tole Sutikno ◽  
Hussein Alsariera
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Bandpass Filter ◽  
Dual Band ◽  
Center Frequency ◽  
Wireless Communication Systems ◽  
Notch Band ◽  
Quarter Wavelength ◽  
Crucial Component ◽  
Microstrip Structure

Due to the progression growth of multiservice wireless communication systems in a single device, multiband bandpass filter has attract a great attention to the end user. Therefore, multiband bandpass filter is a crucial component in the multiband transceivers systems which can support multiple services in one device. This paper presents a design of dual-band bandpass filter at 2.4 GHz and 3.5 GHz for WLAN and WiMAX applications. Firstly, the wideband bandpass filter is designed at a center frequency of 3 GHz based on quarter-wavelength short circuited stub. Three types of defected microstrip structure (DMS) are implemented to produce a wide notch band, which are T-inversed shape, C-shape, and U- Shape. Based on the performance comparisons, U-shaped DMS is selected to be integrated with the bandpass filter. The designed filter achieved two passbands centered at 2.51 GHz and 3.59 GHz with 3 dB bandwidth of 15.94 % and 15.86 %. The proposed design is very useful for wireless communication systems and its applications such as WLAN and WiMAX 

scholarly journals Dual-band bandpass filter based on two U-shaped defected microstrip structure

2021 ◽  
Vol 22 (2) ◽  
pp. 909
Author(s):  
Mussa Mabrok ◽  
Zahriladha Zakaria ◽  
Yully Masrukin ◽  
Tole Sutikno
Keyword(s):  
Bandpass Filter ◽  
Short Circuit ◽  
Notch Filter ◽  
Dual Band ◽  
Design System ◽  
High Attenuation ◽  
Quarter Wavelength ◽  
Insertion Losses ◽  
Microstrip Structure ◽  
Better Than

This paper presents design of dual-band bandpass filter by integrating conventional quarter-wavelength short circuit stubs bandpass filter with U-shaped defected microstrip structure notch filter. Based on the parametric analysis, it is found that high attenuation level can be achieved by using two U-shaped defected microstrip structure separated by specific distance. The designed circuit simulated using advanced design system and fabricated based on Roger 4350B. The simulation results are in good agreement with measured results. The designed filter covered two pass bands centered at 2.51 GHz and 3.59 GHz with 3-dB fractional bandwidth of 15.94% and 15.86%, respectively, return losses better than 15 dB, and insertion losses better than 1 dB. The designed device can be used for wireless communication applications such as WLAN and WiMAX.

A compact dual-band bandpass filter using folded quarter-wavelength resonators

2012 ◽  
Author(s):  
Nikolina Jankovic ◽  
Vasa Radonic ◽  
Vesna Crnojevic-Bengin ◽  
Riana Geschke
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Quarter Wavelength

Design of dual-band bandpass filter using diverse quarter-wavelength resonators for GPS/WLAN applications

2008 ◽  
Vol 50 (10) ◽  
pp. 2694-2696 ◽  
Author(s):  
Hung-Wei Wu ◽  
Yan-Kuin Su ◽  
Min-Hang Weng ◽  
Ru-Yuan Yang
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Quarter Wavelength

scholarly journals Miniature dual‐band bandpass filter using modified quarter‐wavelength SIRs with controllable passbands

2019 ◽  
Vol 55 (1) ◽  
pp. 38-40 ◽  
Author(s):  
Baoping Ren ◽  
Zhewang Ma ◽  
Haiwen Liu ◽  
Xuehui Guan ◽  
Pin Wen ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Quarter Wavelength
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