Vol.6 No.1 (January 2016)
A Research of Bandpass Filter with Miniaturization and High Performance Based on Stripline Configuration
With the continuous progress of technology, modern communication technology has increasingly demand for high-level equipment; the situation of the microwave filter as one of the essential components in microwave module is the same case. Multilayer microwave filter which is based on the LTCC technology meets these requirements and is becoming one of the hot research fields. A method for the section of stripline configuration bandpass filter with miniaturization and high performance is proposed. In order to ensure its miniaturization, this filter is based on the LTCC technology which is advance in the world. Using the circuit simulation and 3D simulation software to optimize and simulate, the measured results of the filter satisfy its performance requirement. The centre frequency of the BPF is at 2800 MHz and its bandwidth is 200 MHz; at 2600 MHz the stop-band attenuation needs to be more than 33 dB and at 3020 MHz is more than 20 dB. Its size of the fabricated filter is only 4.8 mm × 4.2 mm × 1.5 mm.
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