A Uhf Third Order 5-Bit Digital Tunable Bandpass Filter Based on Mixed Coupled Open Ring Resonators

Fu, Mingye; Xiang, Qianyin; Zhang, Dan; Tian, Dengyao; Feng, and Quanyuan

doi:10.2528/pierc16032701

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2017

Publication Types

Select...

Article1

Relationship

Self Cite1

Independent0

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…RF tunable filters, which can greatly increase the flexibility of filtering, are essential components for the radio frequency signal processing in wide-band/multi-band wireless communications [1][2][3]. Recently, microstrip tunable filters based on semiconductor varactor diodes have been widely developed because of their fast tuning speed and low cost [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A 70 Mhz~270 MHZ Electrical Tunable Lc Bandpass Filter Based on Mixed Coupling and Cross-Coupling

Liu¹,

Xiang²,

Hu³

et al. 2017

PIER Letters

Self Cite

View full text Add to dashboard Cite

Abstract-This paper presents an electrical tunable bandpass filter based on tunable LC resonators loaded with semiconductor varactors. Magnetic dominated mixed coupling between the tunable resonators is utilized to compensate the bandwidth of the tunable filter. Cross coupling is created by using magnetic dominated mixed coupling between the resonators and source to load electrical coupling, and two transmission zeros are generated beside the passband. The tunable mechanism of the proposed filter is studied. The tunable filter is analyzed, designed, fabricated and measured. The measurement shows that the filter can be tuned from 70 MHz to 270 MHz with a fractional bandwidth from 27% to 21%.

show abstract