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Microstrip Filters for RF/Microwave Applications, 2nd Edition
book

Microstrip Filters for RF/Microwave Applications, 2nd Edition

by Jia-Sheng Hong
March 2011
Intermediate to advanced content levelIntermediate to advanced
656 pages
18h 37m
English
Wiley
Content preview from Microstrip Filters for RF/Microwave Applications, 2nd Edition

CHAPTER TEN

Compact Filters and Filter Miniaturization

Microstrip filters are already small in size compared with other filters, such as wave-guide filters. Nevertheless, for some applications where the size reduction is of primary importance, smaller microstrip filters are desirable, even though reducing the size of a filter generally leads to an increase in dissipation losses in a given material and, consequently, reduced performance. Miniaturization of microstrip filters may be achieved by using high dielectric constant substrates or lumped elements. However, very often, for specified substrates, a change in the geometry of filters is required and, therefore, numerous new filter configurations become possible [1]. This chapter is intended to describe novel concepts, methodologies, and designs for compact filters and filter miniaturization. The new types of filters discussed include: compact open-loop and hairpin resonator filters, slow-wave resonator filters, miniaturized dual-mode filters, lumped-element filters, filters using high dielectric constant substrates, and multilayer filters, including those based on low-temperature co-fired ceramic (LTCC) and liquid crystal polymer (LCP) packaging materials.

10.1 MINIATURE OPEN-LOOP AND HAIRPIN RESONATOR FILTERS

In the last chapter we introduced a class of microstrip open-loop resonator filters. To miniaturize this type of filter, one can use so-called meander open-loop resonators [2]. For demonstrate a compact microstrip filter ...

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Publisher Resources

ISBN: 9781118002124Purchase book