Coupled‐line dual‐band bandpass filter with compact structure and wide stopband

2014 ◽  
Vol 50 (3) ◽  
pp. 187-189 ◽  
Author(s):  
Yongle Wu ◽  
Siyue Zhou ◽  
Weiwei Zhang ◽  
Mengbi Liao ◽  
Yuanan Liu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Compact Structure ◽  
Coupled Line

Dual-band coupled-line bandpass filter with independently tunable bandwidths

2016 ◽  
Vol 13 (9) ◽  
pp. 60-64 ◽  
Author(s):  
Yongle Wu ◽  
Lixia Nan ◽  
Lingxiao Jiao ◽  
Weimin Wang ◽  
Yuanan Liu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Coupled Line

scholarly journals Design and analysis of dual band pass filter

2020 ◽  
Vol 2 (1) ◽  
pp. 18-25
Author(s):  
Amina Puran ◽  
Şehabeddin Taha İmeci
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Band Pass Filter ◽  
Compact Structure ◽  
Pass Filter ◽  
Material Characteristics ◽  
Band Pass

In this work dual band meandered line bandpass filter is designed and simulated. Anlaysis are done while changing specific parameters, which includes mostly geometry and some material characteristics like dieletric thickness and metal types. This filter has compact structure which is one of the main benefits. It has many applications in industry and that is what makes work on it very interesting. Values for S11 parameter are -20.70dB and -41.72 dB for 4.9GHz and 5.5GHz, respectively. Values for S12 parameter are -0.03dB and -2.91e-4dB for 4.9GHz and 5.5GHz,  respectively.

scholarly journals Design and Realization of Coupled Line Bandpass Filter Using Compact Structure at Frequencies of 3300 MHz – 3400 MHz for WiMAX Application

2016 ◽  
Vol 16 (1) ◽  
pp. 11
Author(s):  
Arief Budi Santiko ◽  
Yahya Syukri Amrullah ◽  
Yuyu Wahyu ◽  
Muhammad Ilham Maulana ◽  
Bambang Setia
Keyword(s):  
Insertion Loss ◽  
Return Loss ◽  
Bandpass Filter ◽  
Center Frequency ◽  
Design System ◽  
Compact Structure ◽  
Coupled Line ◽  
Broadband Wireless ◽  
Simulation And Optimization ◽  
Simulation Results

In this paper, the design of microstrip BPF (Bandpass Filter) for WiMAX (Worldwide Interoperability for Microwave Access) application has been presented. The frequency band allocations for BWA (Broadband Wireless Access) in Indonesia are 2.3; 3.3 and 5.8 GHz. This microtrip BPF is designed using parallel coupled line in compact form and it has spesific parameter, i.e. 3.35 GHz center frequency, 400 MHz bandwidth, VSWR ≤ 2, -3 dB insertion loss and matching impedance between two port is 50 Ω. The Advanced Design System (ADS) software has been used during simulation and optimization. The simulation results show that return loss S11 and insertion loss S21 are -15.31 dB and -2.2 dB at 3.35 GHz respectively. For the design verification, the prototype of the proposed design wasfabricated and measured.The results of the fabrication approach of simulation results, which have return loss value S11and insertion loss S21 of the proposed microstrip filter are -18.20 dB and -2.91 dB at 3.35 GHz respectively. The result shows that the proposed design can be implemented forWiMAX communication system applications

A Reconfigurable Compact Coupled Line Multiple-Band Bandpass Filter

2013 ◽  
Vol 655-657 ◽  
pp. 1555-1561
Author(s):  
Wen Ko ◽  
Man Long Her ◽  
Ming Wei Hsu ◽  
Yu Lin Wang
Keyword(s):  
Transmission Line ◽  
Bandpass Filter ◽  
Dual Band ◽  
Pass Band ◽  
Coupled Line ◽  
Circuit Structure ◽  
Coupled Lines ◽  
In Series ◽  
Multiple Band ◽  
Triple Band

This study proposes a circuit structure with reconfigurable multiple bands bandpass filter. This circuit can provide a triple-band or dual-band bandpass facility by adjusting two open stubs (L6 and L7) location. The circuit design used three sections of transmission line in series, the two sets of the coupled lines connected to the gap in each transmission line, and two open stubs in the appropriate locations. The design and manufacturing of the circuit structure is innovative and simple. The center frequencies of the triple-band bandpass filter are set at 2.4, 4.2, and 6.5 GHz, respectively, while the center frequencies of the dual-band bandpass filter are the two lower pass band of the triple-band bandpass filter at 2.4 and 4.2GHz. The filters were simulated using the full-wave electromagnetic simulator, IE3D, and measured by Anritsu-37269D. The simulated and measured results show good agreement in the frequency of interest.

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