Results 11 to 20 of about 307,700 (210)
Multimode and Multiband Microstrip Antennas [PDF]
This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
core +7 more sources
Delay-line stabilized microwave oscillator with frequency control [PDF]
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The technique whereby the frequency of an oscillator is stabilized using an external feedback network incorporating a delay-line is extended in this thesis ...
Free, Charles Edward
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Dielectric resonator bandstop filters [PDF]
Dielectric resonators have been widely employed in wireless and satellite communication systems due to their inherently large Q allowing them to fashion low loss and narrow bandwidth filters.
Chan, Richard Kayip
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Dual-mode microstrip bandstop filters
In this study, we proposed a novel bandstop filter using a square loop resonator. Dual-mode microstrip bandstop filters are designed and realized by employing two degenerate modes of a dual-mode microstrip square loop resonators. Microstrip loop resonators have been used extensively for bandpass filter applications.
Eryilmaz, M. +3 more
openaire +4 more sources
Design of tunable microstrip bandstop filter
In this paper, a novel microstrip bandstop filter with tunable center frequency and bandwidth is introduced. A dual-mode square loop resonator and three varactor diodes are used to achieve the tunability operation. The dual-mode square loop resonator is coupled to a straight transmission line that connects input and output ports.
Gorur, A.K. +4 more
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Design of Microstrip Low-pass and Band-pass Filters using Artificial Neural Networks
Usually the design of microstrip filters is done using simulators and classical approximation methods as Butterworth and Chebyshev, these techniques takes a lot of time to run for designing filters.
AHMED HATHAT
doaj +1 more source
The microstrip wideband filter
The filter of high frequency-selective properties is developed. The central six-mode resonator of the design which can be used in the aerospace equipment is electromagnetically connected with six single-mode resonators. The good agreement of the calculated data in comparison with the data received on the experimental model of a design is shown.
S A Khodenkov +4 more
openaire +1 more source
DESIGN OF COMPACT BANDPASS QUASI-ELLIPTIC MICROSTRIP FILTERS
This paper considers an algorithm for development of the sixth order compact microstrip bandpass filters with quasi-elliptic characteristics. The proposed technique is applied for synthesis of two filters for the L- and X-band.
Roman E. Semernya +3 more
doaj +1 more source
Performance Comparison of Thin and Thick Film Microstrip Rejection Filters
A performance comparison of microstripline circuits using thin and thick film techniques has been studied, in which a Microstrip rejection filter, in the X-band of microwaves, is used as test circuit.
M. M. Mandhare +3 more
doaj +1 more source
Design and analysis of reconfigurable filters employing varactor and PIN diodes [PDF]
This work presents a comprehensive and comparative study on reconfigurable/tunable microstrip filters, aiming to analyze and understand the impact of varactors, PIN diodes, lumped capacitors, and inductors on the overall filter performance.
Salah Mahdi +2 more
doaj +1 more source

