New dual-band band-pass filter design with enhanced dual-band skirt characteristics

Author(s):  
Juseok Bae ◽  
Cam Nguyen
2021 ◽  
Vol 10 (2) ◽  
pp. 19-26
Author(s):  
H. Boubakar ◽  
M. Abri ◽  
M. Benaissa

This paper is divided into two sections, in the first section, a new SIW and a half-mode SIW band-pass filters based on complementary hexagonal metamaterial cells (C-HMCs) are proposed. Firstly, the SIW is analyzed in case of using two C-HMC cells and in the case of using four of these cells.  Secondly, the HMSIW tunable BPF is studied and optimized. The size of the half mode is reduced by almost 50%. This filter design has a very high insertion loss about -0.4 dB, and significant transmission bandwidth extending from 5.9 GHz to 6.5 GHz. In the second section of this paper, an electronically reconfigurable SIW band-pass filter is proposed. By implementing two PIN diodes in the gaps of the two C-HMC, the results of turning the diodes ON or OFF individually is a switching in the frequency center, between 5.8 GHz and 6.8 GHz. Also, a dual band with two frequency centers at (5.6 GHz and 7.4 GHz) is achieved by turning both of the diodes ON. In addition, the metamaterial properties of all the proposed filters are investigated and presented in this work.


2018 ◽  
Vol 54 (25) ◽  
pp. 1444-1446
Author(s):  
Jianfei Chen ◽  
Sheng Zhang ◽  
Chao Zhang ◽  
Yuehua Li

2019 ◽  
Vol 4 (7) ◽  
pp. 28-30
Author(s):  
William Johnson ◽  
Cavin Roger Nunes ◽  
Savio Sebastian Dias ◽  
Siddhi Suresh Parab ◽  
Varsha Shantaram Hatkar

In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.


2021 ◽  
Author(s):  
Anciline V ◽  
Maheswari S

The main component widely used in wireless communication system is dual-band band pass filter. This band pass filter is intended in many ways and some are microstrip, waveguide, etc. The dual-band will works in two different frequency ranges which will provide a huge application. This paper compares different microstrip dual-band band pass filter based on the techniques, insertion loss, frequency, etc.


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