A Miniaturized Bandpass Filter with Wideband and High Stopband Rejection Using LTCC Technology
| Autor: | Haipeng Fu, Kaixue Ma, Xiong Chen, Ningning Yan, Li Shuangxu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Capacitive coupling
Materials science business.industry 020208 electrical & electronic engineering Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Stopband Resonator Band-pass filter Filter (video) 0202 electrical engineering electronic engineering information engineering Optoelectronics Wideband business Passband |
| Zdroj: | 2020 IEEE Asia-Pacific Microwave Conference (APMC). |
| Popis: | A compact low-temperature co-fire ceramic (LTCC) bandpass filter based on quarter-wavelength steppedimpedance resonators (SIRs) and lowpass loading cells with improved wideband and high stopband rejection level is proposed and demonstrated in this work. In the implementation, two low impedance SIRs are placed on different layers, they generate strong capacitive coupling and form a wide passband. Further, the width of the stopband is improved by loading lowpass cells, while two extra poles formed to improve the passband response simultaneously. The final simulation proves the proposed filter has a passband bandwidth of 67.5%, while the circuit size is only 1.68mm×0.8mm×0.48mm, which has clear advantage in bandwidth and size to other similar LTCC based filters. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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