论文信息 - Transversal wideband bandpass filter using open/shorted coupled lines

Transversal wideband bandpass filter using open/shorted coupled lines

A novel fifth-order wideband bandpass filter using open/shorted coupled lines is proposed. A wideband passband with eight transmission zeros from 0 GHz to 2f 0 (f 0 is centre frequency of the passband) can be achieved respectively due to the superposition of signals of the two transmission paths. A wideband bandpass filter prototype with 3-dB fractional bandwidth of 62% (2.12–3.98 GHz) is designed and fabricated.

Wenjie Feng | Wenquan Che

[1] J.I. Alonso,et al. Design of sharp-rejection and low-loss wide-band planar filters using signal-interference techniques , 2005, IEEE Microwave and Wireless Components Letters.

[2] Lei Zhu,et al. A Compact Wideband Bandpass Filter Using Transversal Resonator and Asymmetrical Interdigital Coupled Lines , 2008, IEEE Microwave and Wireless Components Letters.

[3] Quan Xue,et al. Compact DSPSL ultra-wideband bandpass filter based on transversal signal-interaction concepts , 2011, 2013 IEEE International Wireless Symposium (IWS).

[4] Wenquan Che,et al. Novel Ultra-Wideband Bandpass Filter Using Shorted Coupled Lines and Transversal Transmission Line , 2010, IEEE Microwave and Wireless Components Letters.

[5] R. Gomez-Garcia,et al. Using the branch-line directional coupler in the design of microwave bandpass filters , 2005, IEEE Transactions on Microwave Theory and Techniques.

[6] Quan Xue,et al. Wideband Parallel-Strip Bandpass Filter Using Phase Inverter , 2008, IEEE Microwave and Wireless Components Letters.

[7] Jia-Sheng Hong,et al. Microstrip filters for RF/microwave applications , 2001 .

[8] Quan Xue,et al. High Selectivity Fifth-Order Wideband Bandpass Filters With Multiple Transmission Zeros Based on Transversal Signal-Interaction Concepts , 2013, IEEE Transactions on Microwave Theory and Techniques.