Results 151 to 160 of about 3,783 (193)
Some of the next articles are maybe not open access.
Tunable state-variable bandpass filter
IEE Proceedings G (Electronic Circuits and Systems), 1982A simple method for tuning a state-variable bandpass filter over more than one octave without serious loss in the Q-value is presented. This is accomplished by modifying the input stage by adding one extra variable resistor. Analytical calculations show that there will be a 6% loss in quality factor over the tuning range.
openaire +1 more source
Hairpin Tunable Bandpass Filter with Improved Selectivity and Tunability
2007 Asia-Pacific Microwave Conference, 2007In this paper, a hairpin tunable bandpass filter which has enhanced selectivity and tunability is proposed. The varactors loaded open stubs between quarter-wavelength resonators are introduced to exhibit transmission zeros near the passband and thus better selectivity in the tuning range.
Seung-Un Choi +2 more
openaire +1 more source
Micromachined micropackaged filter banks and tunable bandpass filters
Proceedings of 1997 Wireless Communications Conference, 2002Low cost alternatives to conventional switched filter banks and tunable bandpass filters are investigated. Both types of filters in conventional form suffer from high cost, intricate packaging, and large weight and size. Micromachining and micropackaging were used to allow for a high performance, monolithic design on a single low cost substrate with ...
A.R. Brown, G.M. Rebeiz
openaire +1 more source
ELECTRONICALLY TUNABLE MICROWAVE BANDPASS FILTER
1967Abstract : An equivalent circuit of two orthogonal striplines coupled by a ferrite (yttrium iron garnet) sphere is derived, using the scattering matrix method. This derivation shows that a nonreciprocal phase shifter can be represented by gyrator networks. Based on this analysis, a YIG bandpass filter, electronically tunable over a very broad frequency
Frank Reggia, Ting Hei Mak
openaire +1 more source
ANN Model Development for Tunable Bandpass Filter
2021 51st European Microwave Conference (EuMC), 2022Chandan Roy, Ping Zhao, Ke Wu
openaire +2 more sources
A Tunable Integrated N-Path Bandpass Filter
Mobile Networks and Applications, 2023Changchun Dong +2 more
openaire +1 more source
A Compact Widely Tunable Bandpass Filter Dedicated to Preselectors
Electronics (Switzerland), 2021Dariusz Wójcik +2 more
exaly
A Tunable Microstrip Bandpass Filter with Two Concurrently Tuned Transmission Zeros
Electronics (Switzerland), 2022Dariusz Wójcik +2 more
exaly
A microstrip bandpass filter with 2 independently tunable transmission zeros
Microwave and Optical Technology Letters, 2020Ping Lu, Fei Cheng
exaly
A 4th-Order LTCC Bandpass Filter with Both Tunable Center Frequency and Bandwidth
Electronics (Switzerland), 2022Bin You
exaly