14-12-2014, 03:36 AM
I NEED HELP OF PARALLEL MICROSTRIP FILTER
TANKS
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microstrip filter ppt
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I NEED HELP OF PARALLEL MICROSTRIP FILTER
TANKS
25-03-2017, 02:47 PM
Microstrip is a type of electrical transmission line that can be manufactured using printed circuit board technology, and is used to carry microwave frequency signals. It consists of a conductive strip separated from a ground plane by a dielectric layer known as a substrate. Microwave components such as antennas, couplers, filters, power dividers, etc., can be formed from microstrip, with the entire device existing as a metallization pattern on the substrate. Microstrip is much less expensive than traditional waveguide technology, as well as being much lighter and more compact. Microstrip was developed by ITT laboratories as a competitor to stripline (first published by Grieg and Engelmann in the IRE procedures of December 1952.
New technologies for filter design are being researched around the world to meet the growing demand for advanced filter design with increased frequency response and features. The filter design is often confronted with the balance between electrical and physical parameters such as physical size, insertion loss, loss variation, insulation, group delay and cost of production. Different techniques in filter design have some advantages and disadvantages that must be taken into account. In all RF applications, filters play an important role as a key component for combining, separating, selecting and rejecting frequencies within the assigned spectral limits. The RF filter can be generalized as type four; Low pass, high pass, band pass and band filter. Filters can be made in various types of structure. Most common filters are LC filters, helical filters, coaxial filters, microstrip and stripline filters, transmission line filters, interdigital filters and acoustic filters; Ceramic filters, glass filters, surface acoustic wave filter (SAW). Most microstrip filters often share the same concept and theories when designing it. Some of the common filter concepts are the quality factors discharged from the lossy reactive elements and periodic or non-periodic disturbance techniques of the microstrip line. The main objective of this work is to give viewers a broad perspective on the concepts used in most of the common microstrip filters with the investigators' cases.
Advances in telecommunication technology that comes hand in hand with market demands and government regulations drive the invention and development of new applications in wireless communication. These new applications offer certain features in telecommunications services, which in turn offer three important elements for customers. The first is the coverage, which means that each client must be supported with a minimum level of electromagnetic wave signals, the second is the capacity which means that the client must have sufficient data rate to upload and download data and the last is The quality of QoS services) that guarantee the quality of data transmission from the transmitter to the receiver without error. In order to provide additional transmission capacity, a strategy would be to open certain frequency regions for new applications or systems.
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