Design of the Microstrip Bandpass Filter With 4 Band-Switching Modes

Design of the Microstrip Bandpass Filter With 4 Band-Switching Modes

A novel bandpass filter with four switchable configurations is presented in this brief. The proposed filter is composed of two parallel connected dual-band bandpass filters. In particular, each filter has two open stubs and one parallel-coupled line, series connected with the stepped transmission li...

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Veröffentlicht in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2023-06, Vol.70 (6), p.1926-1930
Hauptverfasser: Tang, Ching-Wen, Jiang, Jian-Ming
Format: Artikel
Sprache:eng
Schlagworte:
Band-pass filters
Bandpass filter
Bandpass filters
Dual band
Passband
PIN diode
PIN photodiodes
Resonator filters
switchable filter
Switches
Switching
Transmission lines
Wireless communication
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Beschreibung
Zusammenfassung:A novel bandpass filter with four switchable configurations is presented in this brief. The proposed filter is composed of two parallel connected dual-band bandpass filters. In particular, each filter has two open stubs and one parallel-coupled line, series connected with the stepped transmission lines and switching diodes. With four switching diodes in the "on" state, the measured central frequencies of quadruple passbands are located at 2.65, 3.36, 4.65, and 5.36 GHz. The result matches well with the theoretical simulation.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2022.3229105