Results 181 to 190 of about 14,280 (219)
Some of the next articles are maybe not open access.
A Microstrip Nonreciprocal Tunable YIG Filter
IEEE Journal of Solid-State Circuits, 1968A nonreciprocal tunable YIG filter in a microstrip configuration has been constructed which makes use of a novel method of generating a circularly, polarized field in the plane of a microstrip circuit. Nonreciprocities in excess of 40 dB have been obtained at X band with relatively low insertion loss and VSWR.
openaire +1 more source
Improvements of Microstrip Loop Filters
2007 International Workshop on Anti-Counterfeiting, Security and Identification (ASID), 2007A miniaturized microstrip open-loop filter with dual-mode and defected ground structure is presented in this paper. The proposed filter has the characteristics of wide stopband, reduced size, and high selectivity. The combination of dual-mode and defected ground structure successfully eliminates the nearest two spurious harmonics.
Chien-Jen Wang +2 more
openaire +1 more source
Microstrip compact bandpass filters
Microwave and Optical Technology Letters, 1991AbstractA simple but efficient synthesis method of microstrip bandpass filters using particularly compact resonators is proposed.
J.‐C. Roduit +2 more
openaire +1 more source
Microstrip cascade trisection filter
IEEE Microwave and Guided Wave Letters, 1999A new configuration of odd-degree cascade trisection bandpass filter realized by combining a microstrip hairpin resonator and /spl lambda//2-line open-circuited resonator is proposed. The general asymmetric Chebyshev function is used to synthesize the cascade trisection prototype.
null Chu-Chen Yang, null Chi-Yang Chang
openaire +1 more source
QUASI-ELLIPTIC MICROSTRIP FILTER
Issues of radio electronics, 2019Currently, modern telecommunication and radio-electronic systems widely use wireless information transmission technologies over the radio channel. Therefore, an urgent task is to ensure electromagnetic compatibility of a large number of simultaneously operating radio facilities using high-selective bandpass filters.
V. P. Razinkin +2 more
openaire +1 more source
Microstrip Filter with Extended Barrier
2019 Radiation and Scattering of Electromagnetic Waves (RSEMW), 2019The article describes the method and process of designing a interdigital bandpass filter on two two-stage microstrip resonators. As a result of the design, thanks to the introduction of two steps of different widths into the resonator, it was possible to double the barrier band by suppressing the parasitic bandwidth in the vicinity of the third ...
A.V. Labyntsev +2 more
openaire +1 more source
Coupled microstrip comblines filters
International Journal of RF and Microwave Computer-Aided Engineering, 2007This paper presents a procedure to design filters using a microstrip combline structure. The combline structure provides a way to reduce the final dimension of the filter. The characteristic impedance and phase constant equations of the combline coupler are derived in terms of impedance and phase constant of the single microstrip coupled lines ...
P. N. S. Filho +3 more
openaire +1 more source
Current modeling of microstrip filters
Microwave and Optical Technology Letters, 2005This paper presents the current modeling of microwave filters using only entire-domain basis functions. Two sets of entire-domain basis functions are introduced, and their results are compared with the measurements and with those obtained using subdomain basis functions. It also discusses the evaluation of the matrices using the method of moments (MoM).
Odilon M. C. Pereira Filho +2 more
openaire +1 more source
Miniaturized microstrip ring filter
2009 IEEE Student Conference on Research and Development (SCOReD), 2009Miniaturized microstrip ring filter is presented. Four lumped capacitors are added in the initial ring resonator topology to shift the resonant frequency to about 50% of its nominal value, leading to size reduction of the filter. The required value of the capacitors is calculated using tuning synthesis equations of the ring resonator.
N. Z. Zakaria +3 more
openaire +1 more source