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摘要
In this letter, a miniaturized ultra-wideband band-pass filter based on thin-film integrated passive device process is proposed. The multi-mode resonator is adopted to achieve a wide bandwidth from 3.1 to 10.6 GHz. By using the bridged-T coil to replace the transmission line of multi-mode resonator, the circuit size is largely reduced while the multi-mode property can be retained. The filter size without pads is 2.21 mm 1.04 mm, which is only about 0.050 lambda(0) x 0.024 lambda(0) at the center frequency of 6.85 GHz. To our knowledge, this is the smallest multi-mode resonator filter ever published.
- 出版日期2014-6
- 单位中央民族大学
