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- [34] Compact Quad-Mode Bandpass Filter with Sharp Cut-off Using Folded Parallel-Coupled Microstrip Lines and Semi-annular Resonator 2013 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC 2013), 2013, : 902 - 904
- [35] 1.9 GHz range ultra-low-loss and steep cut-off double mode SAW filter for the Rx band in the PCS antenna duplexer 2003 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2, 2003, : 389 - 392