scholarly journals A new family of microstrip open-loop resonator filters for high-selectivity applications

2004 ◽  
Vol 43 (5) ◽  
pp. 450-455 ◽  
Author(s):  
David Cañete Rebenaque ◽  
Fernando D. Quesada Pereira ◽  
Jose L. Gomez Tornero ◽  
Alejandro Alvarez Melcon ◽  
Marco Guglielmi
Keyword(s):  
High Selectivity ◽  
Open Loop ◽  
New Family ◽  
Resonator Filters

New copper(i) complexes selective for prostate cancer cells

2020 ◽  
Vol 49 (35) ◽  
pp. 12273-12286
Author(s):  
João Franco Machado ◽  
Diogo Sequeira ◽  
Fernanda Marques ◽  
M. Fátima M. Piedade ◽  
Maria J. Villa de Brito ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Cells ◽  
High Selectivity ◽  
Human Prostate ◽  
Human Prostate Cancer ◽  
Prostate Cancer Cells ◽  
New Family ◽  
Prostate Cells

Synthesis of a new family of Cu(i)–phosphane complexes with N,O-heteroaromatic ligands leads to the complexes showing impressive cytotoxicity against LNCap human prostate cancer cells allied to high selectivity than against RWPE non-tumoral prostate cells.

Wideband Bandpass Filter with High Selectivity and an Adjustable Notched-band Adopting a Multi-mode Resonator

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 237-243
Author(s):  
Xing-Bing Ma ◽  
Ting Jiang
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Characteristic Impedance ◽  
Resonant Mode ◽  
Open Loop ◽  
Side Length ◽  
Notched Band ◽  
Bottom Side ◽  
Multi Mode ◽  
Mode Resonator

AbstractA wideband bandpass filter (BPF) with an adjustable notched-band and high selectivity is proposed. The proposed BPF consists of a multi-mode resonator (MMR), twoλ/2 resonators, and I/O feed lines with 50 ohm characteristic impedance. The MMR, connected as a whole by a wide stub, is composed of one I-shaped resonator and two open-loop resonators. Tightly coupling is built between MMR andλ/2 resonators. I/O feed lines are directly connected with twoλ/2 resonators, respectively. Due to the use of tapped-line coupling, one transmission zero (TZ) is formed near low-edge of aim passband. High-edge of passband with one attendant TZ can be tuned to desired location by adjusting bottom-side position of used wide stub or bottom-side length of I-shaped resonator in MMR. The top-side length of I-shaped resonator is applied to improve upper stopband performance and shift undesired resonant mode of MMR near high-edge of aim passband to proper frequency point. The notched-band in aim passband is dominated by top-side position of wide stub in MMR. Good agreement is observed between simulated and measured results.

High Selectivity Wideband Bandpass Filter Using Stub Loaded Resonator

Frequenz ◽  
2017 ◽  
Vol 71 (7-8) ◽  
Author(s):  
Xing-Bing Ma ◽  
Ting Jiang
Keyword(s):  
Resonant Frequency ◽  
High Selectivity ◽  
Bandpass Filter ◽  
Open Loop ◽  
Resonant Frequencies ◽  
Transmission Zero ◽  
Half Wavelength ◽  
Line Coupling

AbstractThis article presents a high selectivity wideband bandpass filter (BPF) adopting stub loaded resonator. Hereinto, aim passband is determined by BPF without stub embedded, which is only composed of four half-wavelength open-loop resonators. Based on typical tapped-line coupling, two same stubs are located at physical middle points of two resonators connected with I/O feed lines, respectively. Due to embedded point at middle of loaded resonator, the stub with two open-end branches has no influence on original half-wavelength resonant frequency, and aim passband keeps unchanged. Because of different even-mode resonant frequencies between loaded and unloaded resonators, no new passband is constructed. With the help of embedded stubs, original transmission zero (TZ) near low-edge of aim passband is shifted towards passband, and a new TZ is introduced near high-edge. High selectivity and good passband characteristics are obtained optimizing sizes of stubs, I/O tapped position and top open-end length of loaded resonator.

A new family of anion exchangers: mixed hydroxide carbonates of Bi3+ and divalent metals showing high selectivity for SeO32−

2000 ◽  
Vol 35 (13) ◽  
pp. 2109-2121 ◽  
Author(s):  
Masamichi Tsuji ◽  
Yasuhisa Ikeda ◽  
Masami Sazarashi ◽  
Makoto Yamaguchi ◽  
Jun Matsunami ◽  
...  
Keyword(s):  
High Selectivity ◽  
Anion Exchangers ◽  
Divalent Metals ◽  
New Family
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