Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Douglas R. Jachowski"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:2078-2087
A second-order analytic extension of eigenvalue (AEE) method is presented and investigated for efficiently computing the ${Z}$ - parameters of passive RF circuits over a wide frequency band with full-wave accuracy. The ${Z}$ - parameters of an RF cir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37a90e65146a5b1c07e549a8a5aeb849
https://doi.org/10.1109/tmtt.2021.3056473
https://doi.org/10.1109/tmtt.2021.3056473
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:4-14
A fast frequency sweep approach based on analytic extension of eigenvalues (AEE) is presented and investigated for an efficient analysis of miniature passive RF circuits. In this approach, an eigenvalue decomposition is performed to the Z-parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51cb21c4a9b101879b267e77fbdd3599
https://doi.org/10.1109/tmtt.2020.3031584
https://doi.org/10.1109/tmtt.2020.3031584
Publikováno v:
2021 International Conference on Electromagnetics in Advanced Applications (ICEAA).
Highly efficient and accurate simulation of RF circuits is crucial for the design and optimization of novel devices in electronic gadgets and wireless communications. However, it is time-consuming to perform full-wave analysis using numerical methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22a3f4afb0092f8f6886a5131affb944
https://doi.org/10.1109/iceaa52647.2021.9539857
https://doi.org/10.1109/iceaa52647.2021.9539857
Publikováno v:
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. 34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51c5fafaa5cdc40a22c2060615400a51
https://doi.org/10.1002/jnm.2898
https://doi.org/10.1002/jnm.2898
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 57:647-656
The experimental 4-6.25-GHz contiguous-channel frequency multiplexer being presented comprises three equal-bandwidth four-pole ridge-waveguide channel filters that are series-connected through a quasi-low-pass ridge-waveguide manifold. To minimize in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afdb221ae9fc2309cfd097cdab279f24
https://doi.org/10.1109/tmtt.2009.2013288
https://doi.org/10.1109/tmtt.2009.2013288
Autor:
Douglas R. Jachowski
A new lumped-element notch filter architecture with uniform attenuation characteristics over an octave tuning range is described. The approach is demonstrated by a 20 to 55 MHz varactor-tuned two-resonator notch filter with minimum notch attenuation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d14757a0c990bc6e39f577eb425eebf
https://zenodo.org/record/1276335
https://zenodo.org/record/1276335
Autor:
Douglas R. Jachowski
Publikováno v:
2010 IEEE International Conference on Wireless Information Technology and Systems.
A varactor-tuned first-order (two-resonator) lumped-element absorptive notch filter with tunable operating frequency and constant absolute bandwidth has been introduced, along with an approach to its design. To reduce signal voltage across individual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c364799fbadb63c29c44cd0c681ef277
https://doi.org/10.1109/icwits.2010.5611943
https://doi.org/10.1109/icwits.2010.5611943
Publikováno v:
2010 IEEE International Symposium on Electromagnetic Compatibility.
Some recent developments in filter technology at the Naval Research Laboratory will be described and the application of these technologies to spectrum management will be discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f366250882499b58319343e4c90f9728
https://doi.org/10.1109/isemc.2010.5711253
https://doi.org/10.1109/isemc.2010.5711253
Publikováno v:
2009 IEEE International Symposium on Electromagnetic Compatibility.
A frequency-agile narrowband microstrip bandstop filter technology able to maintain near constant absolute bandwidth while tuning over a frequency range of nearly an octave is described. The technology is demonstrated by a reconfigurable notch filter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cedddaf4ad7ac237b9a5b580eeacccff
https://doi.org/10.1109/isemc.2009.5284585
https://doi.org/10.1109/isemc.2009.5284585
Autor:
Douglas R. Jachowski
Publikováno v:
2006 IEEE MTT-S International Microwave Symposium Digest.
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::290712fb3a3d7d8e35c2bac189b79de7
https://doi.org/10.1109/mwsym.2006.249428
https://doi.org/10.1109/mwsym.2006.249428