Results 191 to 200 of about 4,695 (219)

Balanced octave-tunable absorptive bandstop filter

2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON), 2018
This paper presents, for the first time, a balanced octave-tunable absorptive bandstop filter. The balanced (differential) operation is realized by coupling two transmission lines with an opposite polarity to each of two high-Q tunable Substrate Integrated Waveguide (SIW) cavity resonators.
Mohamed F. Hagag, Mahmoud Abdelfattah, Dimitrios Peroulis   +2 more
openaire   +1 more source

A compact triple-band bandstop filter

2014 International Conference on Advances in Engineering & Technology Research (ICAETR - 2014), 2014
This paper presents a compact triple-band bandstop filter (TBBSF) that features three controllable stopbands at 1.8 GHz, 5.2 GHz and 8.5 GHz frequencies. A drastic reduction in size of the filter was achieved by taking advantage of a simplified architecture based on E-shaped resonator. The return losses of the simulated filter are measured to be −46.14,
Amit Joshi, Deepak Bhatia
openaire   +1 more source

Wideband Bandstop Filter With Cross-Coupling

IEEE Transactions on Microwave Theory and Techniques, 2007
A general circuit configuration for cross-coupled wideband bandstop filters is proposed. The distinct filtering characteristics of this new type of transmission line filter are investigated theoretically and experimentally. It is shown that a ripple stopband can be created, leading to a quasi-elliptic function response that enhances the rejection ...
Hussein Shaman, Jia-Sheng Hong
openaire   +1 more source

Cascadable Lossy Passive Biquad Bandstop Filter

2006 IEEE MTT-S International Microwave Symposium Digest, 2006
A lossy passive biquad bandstop filter is proposed as a building block for higher-order bandstop filters needing both large stopband attenuation and excellent selectivity. Characteristic equations for cascaded absorptive filters, an example, and data useful for design are provided.
openaire   +1 more source

Bandstop Filter Formulas (Correspondence)

IEEE Transactions on Microwave Theory and Techniques, 1967
E.G. Cristal, L. Young, B.M. Schiffman, D.B. Weller   +3 more
openaire   +1 more source

Compact Metamaterial Based Bandstop Filter

2014
A compact, highly selective, bandstop filter (B SF) is presented with numerical and experimental results. It is additionally modelled with lumped circuit elements in an equivalent circuit model (ECM) to describe resonator coupling and corresponding phase shift.
PALANDOKEN, M., SONDAŞ, ADNAN
openaire   +1 more source

Soot reactivity analysis and implications on diesel filter regeneration

Progress in Energy and Combustion Science, 2020
Magín Lapuerta
exaly  

Glomerular barrier behaves as an atomically precise bandpass filter in a sub-nanometre regime

Nature Nanotechnology, 2017
Bujie Du, Xingya Jiang, Anindita Das
exaly  

Bandstop filters

2002
openaire   +1 more source

Energetic optimization of ion conduction rate by the K+ selectivity filter

Nature, 2001
Roderick MacKinnon
exaly