DOAJ Open Access 2015

High Selectivity Dual-Band Bandpass Filter with Tunable Lower Passband

Wei-Qiang Pan Xiao-Lan Zhao Yao Zhang Jin-Xu Xu

Abstrak

This paper presents a novel method to design dual-band bandpass filters with tunable lower passband and fixed upper passband. It utilizes a trimode resonator with three controllable resonant modes. Discriminating coupling is used to suppress the unwanted mode to avoid the interference. Varactors are utilized to realize tunable responses. The bandwidth of the two bands can be controlled individually. Transmission zeros are generated near the passband edges, resulting in high selectivity. For demonstration, a tunable bandpass filter is implemented. Good agreement between the prediction and measurement validates the proposed method.

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (4)

Wei-Qiang Pan

Xiao-Lan Zhao

Yao Zhang

Jin-Xu Xu

Format Sitasi

APA MLA BibTeX

Pan, W., Zhao, X., Zhang, Y., Xu, J. (2015). High Selectivity Dual-Band Bandpass Filter with Tunable Lower Passband. https://doi.org/10.1155/2015/762504

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Informasi Jurnal

Tahun Terbit: 2015
Sumber Database: DOAJ
DOI: 10.1155/2015/762504
Akses: Open Access ✓