Coplanar Stripline Reconfigurable Bandpass Filter with Variable Notch Band Frequency

2018 ◽  
Author(s):  
George E. Ponchak
Keyword(s):  
Bandpass Filter ◽  
Band Frequency ◽  
Coplanar Stripline ◽  
Notch Band

Synthesis design of wideband bandpass filter with narrow notch band

2020 ◽  
Author(s):  
Yong‐Qiang Chai ◽  
Chong‐Hu Cheng ◽  
Jin‐Rong Mo ◽  
Yan‐Feng Shi ◽  
Sheng‐Bo Hu
Keyword(s):  
Bandpass Filter ◽  
Notch Band ◽  
Synthesis Design

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 Microwave Bandpass Filter Integrated with Notch Response for Wide-band Applications

2018 ◽  
Vol 11 (2) ◽  
pp. 797
Author(s):  
Mussa Mabrok ◽  
Zahriladha Zakaria ◽  
Nurhana Abu Hussin ◽  
Mohamad Ariffin Mutalib
Keyword(s):  
Communication Systems ◽  
Bandpass Filter ◽  
Wide Band ◽  
Design System ◽  
Substrate Thickness ◽  
Notch Band ◽  
Military Applications ◽  
Communication Devices ◽  
Advance Design System ◽  
Better Than

This paper presents the design of wide-band bandpass filter using microstrip structure at 3-6GHz with fractional bandwidth of 66.67% based upon short-circuited stubs structure of 5th degree. In order to avoid the interference from existing system that operates in the frequency band, the folded stepped impedance resonator (SIR) was introduced to generate a narrow notch band at 5.2GHz. Pin diode is employ as switching mechanism for the notch response. This design is simulated by Advance Design System (ADS) software and using Roger Duroid 4350B with a dielectric constant of 3.48, substrate thickness 0.508mm and loss tangent 0.0019.The achieved return loss is better than 15dB and insertion loss is less than 1dB.The designed filter can be used in microwave communication systems such as wireless communication devices and military applications (radar system).

A compact ultra-wideband bandpass filter with WLAN notch band

2008 ◽  
Vol 51 (2) ◽  
pp. 503-507 ◽  
Author(s):  
Pai-Yi Hsiao ◽  
Ro-Min Weng
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Notch Band
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