Intrinsically Switchable Frequency Reconfigurable Barium Strontium Titanate Resonators and Filters

Lee, Victor; Lee, Seung Ku; Sis, Seyit Ahmet; Mortazawi, Amir

doi:10.1109/tmtt.2017.2696012

Cited by 12 publications

(3 citation statements)

References 35 publications

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“…Although the switchable dual-band BPFs have been studied extensively, their corresponding passbands are relatively small, as presented in [15][16][17]. In other words, there is no DWB BPF with independently switchable passbands reported.…”

Section: Independently Switchable Lower Passbandmentioning

confidence: 99%

“…However, little effort has been devoted to DWB ones with fixed absolute bandwidths. Later, research on the switchable passbands and tunable bandwidths were added [11][12][13][14][15][16][17][18][19][20][21][22][23]. Compared to SWB BPFs with tunable bandwidth [11][12][13][14] and dual-band BPFs with switchable passbands [15][16][17], much less efforts have been devoted to DWB ones with tunable bandwidths, and only six IEEE journal papers have been reported [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Later, research on the switchable passbands and tunable bandwidths were added [11][12][13][14][15][16][17][18][19][20][21][22][23]. Compared to SWB BPFs with tunable bandwidth [11][12][13][14] and dual-band BPFs with switchable passbands [15][16][17], much less efforts have been devoted to DWB ones with tunable bandwidths, and only six IEEE journal papers have been reported [18][19][20][21][22][23]. As the tunable-bandwidth filters in [18][19][20] are based on in-parallel BPF cascades, some drawbacks, i.e., small bandwidth and tuning ranges, and limited center frequency ratio, exists.…”

Section: Introductionmentioning

confidence: 99%

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Reconfigurable Single-/Dual-Wideband Bandpass Filters Based on a Novel Topology

Guo

Zhong

et al. 2020

Electronics

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Based on a new topology, a series of single-/dual-wideband bandpass filters (SWB/DWB BPFs) with reconfigurable masses of properties are presented. The proposed design starts from a dual-wideband passive filtering structure, which owns five transmission zeros in the stopbands and three transmission poles in each passband. Then, three capacitors are employed as the tuning elements. By controlling these three capacitors, DWB BPFs with different reconfigurable properties, including three independently tunable passband edges, tunable center frequency of lower passband with fixed absolute bandwidth, tunable bandwidth of lower passband with fixed center frequency, and switchable lower passband, can be realized. In addition, SWB BPF with tunable bandwidth also can be achieved by varying the inserted capacitors. For verification, a prototype with different capacitors is designed and fabricated. As the measured and simulated results agree well with each other, a simple design approach of reconfigurable SWB/DWB BPFs can be verified.

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Section: Independently Switchable Lower Passbandmentioning

confidence: 99%