Abstract
A compact ultra-wideband (UWB) bandpass filter (BPF) based on transversal signal-interaction concepts is proposed in this letter. Two transmission paths with a wideband double-sided parallel-strip line (DSPSL) 180° swap and a 3λ/4 transmission line are used to transmit signal from Port 1 to Port 2. Two λ/4 shorted lines are introduced to improve the passband transmission characteristic. Two transmission zeros and good harmonic suppression can be achieved in the whole band. One prototype with 3-dB fractional bandwidth of 108% (1.35-4.6 GHz) is fabricated for demonstration, and good agreement is observed between simulated and measured performances. © 2013 IEEE.
Original language | English |
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Title of host publication | 2013 IEEE International Wireless Symposium, IWS 2013 |
DOIs | |
Publication status | Published - 2013 |
Event | 2013 IEEE International Wireless Symposium, IWS 2013 - Beijing, China Duration: 14 Apr 2013 → 18 Apr 2013 |
Conference
Conference | 2013 IEEE International Wireless Symposium, IWS 2013 |
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Country/Territory | China |
City | Beijing |
Period | 14/04/13 → 18/04/13 |
Research Keywords
- 180° swap
- bandpass filter (BPF)
- double-sided parallel-strip line (DSPSL)
- transversal filter concepts
- Ultra-wideband (UWB)